MATERIALES DE RESISTENCIA BAJA CONTROLADA (MRBC) ACI 229R — 99 REPORTE DEL COMITÉ ACI 229 CAPÍTULO 1.
INTRODUCCIÓN
CAPÍTULO 2.
APLICACIONES
CAPÍTULO 3.
LOS MATERIALES MATERIALES
CAPÍTULO 4.
PROPIEDADES
CAPÍTULO 5.
PROPORCIÓN DE LA MEZCLA
CAPÍTULO 6.
MEZCLADO, TRANSPORTACIÓN, TRANSPORTACIÓN, Y COLOCACIÓN
CAPÍTULO 7.
CONTROL DE CALIDAD
CAPÍTULO 8.
MRBCs DE BAA DENSIDAD
CAPÍTULO !.
RE"ERENCIAS
CAPÍTULO 1 — INTRODUCCIÓN E# M$%& M$%&'($ '($## )& R&s( R&s(s% s%&* &*+( +($$ B$$ B$$ CC-*% *%''-#$ #$)$ )$ MRBC MRBC// &s 0* $%& $%&'( '($# $# $0%$0%+-'&s(#&, &s 0* +&&*%$*%& 0s$)- '(*+($#&*%& +-- 0* '&##&*- s&+0*)$'(-, - +-- 0*$ $#%&'*$%($ $# '&##&*- +-$+%$)-. $ $'($s +-*)(+(-*&s s-* $+%0$#&*%& +-*-+()$s s-'& &s%& $%&'($#, )& $## s0s )(&'&*%&s *-'&s9 #0- +$$: )& ##&*$', ##&*$', '&##&*'&##&*- (*+-'&s (*+-'&s(#&, (#&, '&##&*- )& )&*s()$) )&*s()$) +-*%'-#$)$, +-*%'-#$)$, #0- +$$: )& -$')&$'s& +-- &# -'%&'-, s0&#-;+&&*%- #
0& '&s(s%&* 0*$ 0&':$ )& +-'&s(?* )& 8.3 MP$ 12@@ s(/ - &*-s. L$ $-'$ )& #$s $#(+$+(-*&s $+%0$#&s )& MRBC '&>0(&'&* #$s 0&':$s )& +-'&s(?* *- +-*(*$)$ )& 2.1 MP$ 3@@ s(/ - &*-s. Es%& '&>0(s(%- *()& 0&':$, &s *&+&s$'(- $'$ &'(%(' &+$$+(-*&s 0%0'$s &* &# MRBC.
E# %'(*- MRBC 0&)& 0s$'s& $'$ )&s+'((' $ 0*$ $(#($ )& &:+#$s $'$ 0*$ $'(&)$) )& $#(+$+(-*&s. P-' &&#-, &# #(%& s0&'(-' )& 8.3 MP$ 12@@ s(/ &'(%& &# 0s- )& &s%& $%&'($# &* #$s $#(+$+(-*&s )-*)& #$ &+$$+(?* 0%0'$ &s ('-$#&, +-- '&##&*- &s%'0+%0'$# $- #-s &)((+(-s. E# C$%0#- 8 )& &s%& (*-'& )&s+'(& #$ B$$ D&*s()$) BD/ )& MRBC >0& s& '-)0+& 0s$*)- #$ &s0$ '&-'$)$ +-- $'%& )& #$ '--'+(?* )& &:+#$. E# 0s- )& &s0$ '&-'$)$ &* #$s &:+#$s )& MRBC;BD, &'(%& $ &s%-s $%&'($#&s s&' '-)0+()-s +-* 0* &s- -' 0*()$), 0& &# MRBC %(+-. L$s '-(&)$)&s )(s%(*%($s #-s '-+&)((&*%-s )& &:+#$*)- $'$ MRBC;BD s& )(s+0%& &* &# '&s&+%(- +$%0#-. L$s &:+#$s )& MRBC )&# 0%0'- -)'<* s&' )&s$ )&s$''''-##$ ##$)$ )$ss $'$ $'$ #-s #-s '&##& '&##&**-ss )& $*%( $*%(++-'' ''-s -s(? (?*, *, #-s #-s '&## '&##&* &*-s -s %&' %&'$# $#&s &s,, &*)0'&+((&*%- )& #$s $s&s )&# $(&*%-. E# MRBC *- )&& s&' +-*s()&'$)- +-- 0* %(- )& $s%$ )& $$ '&s(s%&*+($, s(*+-- 0* $%&'($# )&# '&##&*- s&+0*)$'(- $0%- +-'&s(#& >0& &s 0s$)- &* #0$' )&# '&##&*- +-$+%$)-. &*&'$#&*%& #$s &:+#$s )& MRBC *- s& )(s&$* $'$ s--'%$' #$ +-*&#$+(?* )&s=(&#-, $+%-'&s $'$s(-s - #$s 0&':$s &'-s($s, - #-s >0(+-s $'&s(-s. L-s $%&'($#&s 0&'$ )& *-'$ 0&)&* 0s$'s& $'$ '-)0+(' MRBC s(&'& +0$*)- &s%-s =$$* s()- '-$)-s $'$ s$%(s$+&' #$ $#(+$+(?* >0& s& '&%&*)&. T$-+T$-+- &# MRBC )&& +-*0*)('s& +-* &# S0&#-;C&&*%- +-$+%$)-, +-$+%$)-, +-- #)(+& &# ACI [email protected]. E# MRBC %(+- *- '&>0(&'& *(*0*$ +-*s-#()$+(?* - +0'$) $'$ #-'$' #$ '&s(s%&*+($ '&s(s%&*+($ >0& )&s&$-s. )&s&$-s. L$s 0&':$s )& +-'&s(?* $ #$'- #$:-, $# +-$+%$' &# s0&#-; +&&*%- &+&)& $ &*0)- #-s 8.3 MP$ 12@@ s(/, &# #(%& <(- &s%$#&+()- $'$ MRBC. L$s 0&':$s )& +-'&s(?* $ #$'- #$:- )& @.3 $ 2.1 MP$ 5@ $ 3@@ s(/ s-* $$s &* +-$'$+(?* +-* #$s )&# =-'(?*. P-' #- >0& &s%$ 0&':$ s& '&(&'& $ #$ +-'&s(?* &'(s(#&, s(* &$'-, &s +-F* &s%& +'(%&'(- )& $-- )& 0*$ +$'$
$'$ &)(' #$ +$$+()$) +$$+()$) -'%$*%& )&# )&# s0&#-, &*%'& @.3 $ @.7 MP$ 5@ $ 1@@ s(/, &s%& $'<&%'- )& 0&':$ 0&':$ &s &>0($#&*%& $ #$ )& 0* '&##&*'&##&*- (&* +-$+%$)-. +-$+%$)-. A0*>0& &# MRBC &*&'$#&*%& +0&s%$ 0& #$ $-'$ )& s0&#-s )& $%&'($#&s )&# '&##&*- s&+0*)$'(- $+G(##/ '$*0#$'&s, s0s 0+=$s &*%$$s $ &*0 &*0))- '-) '-)0+ 0+&* &* #-s #-s 0& &# MRBC *- *&+&s(%$ +-*s-#()$+(?* 0&)& )(s&$'s& $'$ #0(', &s ()&$# $'$ &# 0s- &* ('& - <'&$s )& $++&s- '&s%'(*()- )?*)& )(s-*&' +-$+%$' &# '&##&*- &s )(+(#. S( s& '& 0*$ &+$$+(?* 0%0'$, $ #$'- #$:- #$ 0&':$ )& +-'&s(?* <($ <($ &* &*&'$ &'$#& #&*%& *%& *- &+&)& &+&)&'< '< 2.1 MP$ 3@@ 3@@ s(/. s(/. A C-*%(*0$ C-*%(*0$+(? +(?*, *, s& +-*s()&'$* #$s $#(+$+(-*&s $# '&s&*%$' 0* '$*- )& 0s-s $'$ MRBC. 2.2 — RELLENO SECUNDARIO E# MRBC 0&)& $#(+$'s& '-*%$&*%& &* 0*$ %'(*+=&'$, $0&'- 0 -%'$ +$()$) "(. 2.1 2.2/. N- s& '&>0(&'& #$ +-*s-#()$+(?*H &# $*+=- )& #$ %'(*+=&'$ - &# %$$- )& #$ &+$$+(?* 0&)&* '&)0+('s&. L-s '$*0#$'&s )&# s(%(- )& &+$$+(?* $'$ &# '&##&*- s&+0*)$'(-, $0* +0$*)- s& +-$+%&* $'-($)$&*%& $'-($)$&*%& +-* &# &s&s-' )& #$ +$$ '&>0&'()$, *- 0&)&* #-'$' #$ 0*(-'()$) )&*s()$) )&# MRBC.
C0$*)- &# '&##&*- s&+0*)$'(- &s '&%&*()- -' $'&)&s, )&&* +-*s()&'$'s& #$s '&s(-*&s #$%&'$#&s &&'+()$s &* #$ $'&) -' #$ '&s(?* )& #0- )&# MRBC. C0$*)- #$ '&s(?* #0()$ #$%&'$# &s 0*$ '&-+0$+(?*, &# MRBC 0&)& -*&'s& &* +$$s +$$s,, &'(% &'(%(&* (&*))- >0& +$)$ +$)$ +$$ +$$ &*) &*)0'& 0'&:+ :+$$ $'-( $'-($)$ $)$& &*%& *%& $'$ $'$ -* -*&' &' #$ '?($ +$$. E* 1!88, &* #$ +(0)$) )& P&-'($, #-s '-#&$s )& $0&'-s '&+0&*%&s s&&'-s, $s +-- )&# $- )& '&##&*- s&+0*)$'(- $'$ ##&*$'#-s, -#($'-* $ s0s =$(%$*%&s $ '-$' #$ $#%&'*$%($ )& MRBC +-- 0* $%&'($# )&# '&##&*- s&+0*)$'(-. E# MRBC s& 0s- &* #$s %'(*+=&'$s $ 2.7 ! (&s/ )& '-0*)()$). A0*>0& #0()&* &# -&*%- )& #$ +-#-+$+(?*, &# MRBC &*)0'&+(? )& %$# -'$ >0& &# &s- )& 0*$ &'s-*$ -)$ s--'%$'#- )& 2 $ 3 =' )&s0s. S& -s&'? M0 -+$ +-*% +-*%'$ '$++ ++(? (?** - '&s> '&s>0& 0&' '$ $$ $(& (&*% *%-. -. O%'$ O%'$ss &%& &%&*s *s$s $s '0& '0&$ $ss s& =(+( =(+(&' &'-* -* -s%&'(-'&*%& '&&*)$*)- #$ '$s$*%& )&# $(&*%- )&*%'- )& 3 $ 4 =-'$s. E* 0*$ '0&$, 0* $'+=& )&# $(&*%- s& 0s- +-* (%- &*+($ )& 0*$ %'(*+=&'$ )& #$ +#-$+$ (*&)($%$&*%& )&s0s )&# R&##&*- s&+0*)$'(- +-* MRBC. T$#$ 1&*%$$s )& #-s $%&'($#&s )& $$ '&s(s%&*+($ +-*%'-#$)$. D(s2-*((#()$)
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P$'$ &# +0's- )& )(s&-, $- #-s $(&*%-s #&(#&s, - &s%'0+%0'$#&sH #-s +-&(+(&*%&s )((&'&* )&&*)(&*)- )& #$ 0&':$ )&# MRBC. A-$)- &* #-s $#-'&s )& #-s +-&(+(&*%&s &s%'0+%0'$#&s $'$ +&&*%- >0& s& +-*-+&*, s& )&)0+&* #$s $s&s )& )$%-s -%&*()-s &* $'(-s &s%$)-s, &# +-&(+(&*%& &s%'0+%0'$# )& 0*$ +$$ )& MRBC 0&)& &s%($'s& &*%'& @.16 $ @.28 $'$ #$s 0&':$s )& +-'&s(?* )& 2.8 $ 8.3 MP$ 4@@ $ 12@@ s(/ .8 B0&*-s )'&*$&s, (*+#0s- '&s%'(*()-s, +$*$#&s, +#-$+$s )& $0$ #0($#, #$ (*+#(*$+(?* $'-($)$ )&# $(&*%-, s& '&>0(&'&* $# 0s$' MRBC &* #$s &:+#$s &* #$ +-*s%'0++(?* )&# $(&*%-. P0&s &# +-*&#$(&*%- )&s+-*&#$(&*% -)'$ '-)0+(' -+$ )0'$(#()$) $# $%&'($# )& $s& s( &s%& s& +-*&#$ $# s$%0'$'s& )& $0$. P$'$ 0*$ s0&'(+(& )&s$s%$)$ >0& %(&*& '-(&)$)&s '&#$%($&*%& -'&s $'$ '&s(s%(' &# 0s- >0& '&>0(&'& 0*$ '&s(s%&*+($ -' &*+($ )& #$ >0& 0&)& -'&+&' &# MRBC, =$ 0+=$
"(. 2.1 A#(+$+(?* )& MRBC $# '&##&*- s&+0*)$'(- $)$+&*%& $ +-*s%'0++(?* +-- 0'- )& 0*)$+(?*.
2." — LEC#O DE APOYO (CAMA) PARA LA CANALI$ACIÓN E# MRBC &s 0* $%&'($# &+&#&*%& +-- #&+=- $'$ #$s %0&'$s &#+%'(+$s, )& %&#-*-s, -%'-s %(-s )& +$*$#(:$+(-*&s. L$ +$'$+%&'s%(+$ )& #0()&: #& &'(%&* $# MRBC, &# ##&*$)- %-%$# $- #-s +$*$#&s '--'+(-*$ 0* $-- 0*(-'&. E# U.S. B0'&$0 - R&+#$$%(-* B0'? Es%$)-0*()&*s& )& R&+#$$+(-*&s ? USBR -' s0s s(#$s &* (*#s/ &&:? 0s$*)- MRBC &* 1!64 +-- 0* #&+=- )& $- $'$ 0*$ %0&'$ )& +-*+'&%- )& 38@ $ 24@@ 15 $ !6 0#$)$s/ )& )(<&%'- $ #- #$'- )& %-)- &# P'-&+%- )& A+0&)0+%- )& '- +$*$)(&*s& >0& %(&*& 0*$ #-*(%0) )& 518 . 322 (##$s/ )&s)& A$'(##- $ L0-+G, T&$s. L$ #&+=$)$ )& s0&#-;+&&*%- +-*)0+()- $ %0&'$s +-* #&+=- )& $-- +-- #- '&&'()- -' &# USBR, s& '-)0- &* #$*%$s +&*%'$#&s &* $%()-'$s -'%<%(#&s >0& s& -(&'-* +$)$ 16 . 1@ (##$s/ $ #- #$'- )& #$ '0%$. L-s +$(-*&s )& +-*+'&%- (%- #(s%-s &*%'&$'-* &*%-*+&s #$ #&+=$)$ )& s0&#- ; +&&*%- &* &# s(%(- )& +-#-+$+(?*. L$ %(&''$ s& -%0- )& #-s )&?s(%-s #-+$#&s. S& &s%(? >0& #$s #&+=$)$s )& s0&#- ; +&&*%- '&)0&'-* &# +-s%- )& &# #&+=- )& $-- &* 0* 4@. A0&*%$*)- #$ '-)0++(?* )& 12@ $ 3@@ 4@@ $ 1@@@ (&s #(*&$#&s/ )& %0&'$ (*s%$#$)$. E# MRBC 0&)& )(s&$'s& $'$ '--'+(-*$' #$ '&s(s%&*+($ $ #$ +-''-s(?* >0& s& '-)0+& $- #$s %0&'$s. D&s)& &)($)-s )& #-s 7@s, &* $#0*$s $&*+($s )&# +-*)$)- )& I-K$, s& =$* (*s%$#$)- #$s $#+$*%$'(##$s &* #&+=-s )& $-- )& MRBC. Es%- *- s?#- '--'+(-*$ s-#()&:, s(*- >0&, &# #&+=- )& $-- )& #$ %0&'$ &s 0*(-'&, '&(&*& &# )&''$& +-*s(0& 0* $-- $+(:- $'$ #$ %0&'$ #$*%$)$, *- s. T$(* &*+$-*$*)- #$ %0&'$ &*%&'$ &* MRBC, s& '-%&& )&# )$- 0%0'-. P-' &&#-, s( &# <'&$ $#'&)&)-' )& #$ %0&'$ s& &+$$ -s%&'(-'&*%&, -($&*%& s& '&+-*-+&'< #$ )(&'&*+($ &*%'& MRBC #$ %(&''$ +('+0*)$*%& - +-*&*+(-*$#, #-s '&##&*-s s&+0*)$'(-s '$*0#$'&s, $#&'%$*)- s-'& #$ &(s%&*+($ )& #$ %0&'$. E*
C-#-'$)- %$(* s& =$* 0s$)- $#0*-s $&*%&s &* #$s &:+#$s $'$ $0)$' $ ()&*%((+$' #$ '&s&*+($ )& MRBC. 2.% — CONTROL DE EROSIÓN L$s P'0&$s )& #$-'$%-'(-, $s +-- #$s '0&$s )& +$-, =$* -s%'$)- >0& &# MRBC '&s(s%& 0 (&* #$ +-''-s(?* 0+=- &-' >0& -%'-s $%&'($#&s )& '&##&*-. L$s P'0&$s )& +-$'$+(?* &*%'& MRBC +-* $'($s $'&*$s $%&'($#&s )& '&##&*- )& $'+(##$ -s%'$'-* >0& &# MRBC, +0$*)- &s%< &0&s%- $# $0$ $ 0*$ &#-+()$) )& @.52 s&. 1.7 %. s&./, 0& s0&'(-' $ #-s -%'-s $%&'($#&s, $# s&' *($ #$ +$*%()$) )& ')()$ )& $%&'($# )& s?#()-s s0s&*)()-s )&# $%&'($#.
"(. 2.2R&##&*- s&+0*)$'(- &* 0* +-'%& +-* MRBC.
E# MRBC s& 0s$ 0* &*0)- &* &# '('$ &# -#& s&+- )& #$ '$s$)0'$/ $'$ '-%&++(?* )& %&''$#&*&s, (#$s )&$- )& &'%&)&'-s )& )(>0&s, $'$ s-s%&*&' &)$:-s )& (&)'$ )&# #0$' $'$ '&s(s%(' #$ +-''-s(?*. E# MRBC s& 0s$ $'$ ##&*$' &# %&()- #&(#& )-*)& s& -*& 0* #&+=- $ #- #$'- )& #-s %&''$#&*&s $'$ '-%&++(?* )& #$ +-''-s(?*, #$ 0&':$ $0&*%$ &# &s-. A)&0& &# $%&'($# s($ #0&*)- #& =$+& #0(' $ )(s%$*+($s $-'&s. E# MRBC 0& 0s$)- $'$ ##&*$' 0* %F*&# $$*)-*$)>0& $s$$ $- &# R- M&*--*&& &* &# +&*%'- )& #$ +(0)$) M(#K$0G&&, Q(s. E# $%&'($# s& $0%- *(&#? -' &*+($ )&# #0()- )& 71.6 235 0#$)$s/. E# -%' '-&+%- )& M(#K$0G&&, 0& )& 635 3 831 )3/ &# MRBC 0& 0s$)- $'$ ##&*$' 0*$ +#-$+$ $$*)-*$)$. E# MRBC #0? s&F* (*-'&s '&+(()-s &* 0*-s !@ 3@@ 0#$)$s #(*&$#&s/. A*%&s )& +-*s%'0(' &# M-0*% B$G&' R()& T0**&# &* &# S&$%%#&, s& =(:- &# <'-# &#-'$%-'(- )& 37 12@ %./ 3.7 12 %./ )& '-0*)()$), #-s )(<&%'-s )& #$s %'$$s )& !.1 3@ %./ #-s %F*&#&s )& #-s '$$#&s &'$* &+$$)-s $ #- #$'-. D&s0s )& #$ &#-'$+(?* &# <'-# %0- >0& s&' ##&*$)- )&s0s )& #$ +-*s%'0++(?* )&# %F*&#. S& *&+&s(%$'-* s?#- 4 =-'$s $'$ ##&*$' &# <'-# +-* 6@1 3 786 )3/ )& MRBC.
2.&.2
—
SÓTANOS
Y
ESTRUCTURAS
SUBTERRNEAS
ABANDONADAS E* &# s0s0&#- #-s s?%$*-s $ &*0)- s& ##&*$* +-* MRBC -&<*)-#- ##&$*)- #$ &:+#$ $ %'$s )& 0*$ &*%$*$ $(&'%$ - 0&'%$. E* &# '-&+%- )& '&*-$+(?* (*)0s%'($# &* L$ S$##&, s& '&>0('(? &# '&##&*- )& 0* s?%$*- &(s%&*%& $'$ '&$+--)$' &# #$* )& &$*s(?*. E# '&##&*- '$*0#$' 0& +-*s()&'$)-, &'- #-s '-#&$s )& $++&s- =(+(&'-* >0& s& &s+-(&'$ $# MRBC +-- 0*$ $#%&'*$%($ 0& s&' &+$$)$s )&s)& #$ s0&'(+(& =$s%$ &# (s- )& #$ &s%$+(?*. D&s0s )& >0& #$ &s%$+(?* 0& +-*s%'0()$, s& $#(+$'-* 1!,@@@ 3 25,@@@ )3/ )& s&##$)- &*+($ )& +$)$ &s%$+(?* =$s%$ #$ +$##&. P$'$ *- (*%&''0(' &# %'<(+- +-* #$ +-*s%'0++(?* +-* &# &>0(- $%&'($#&s, &# s&##- s& ##&*? +-* MRBC &# +0$# *- '&>0('(? *(*0*$ +-#-+$+(?* )& -%'$ +$$ - +-$+%$+(?*. E# MRBC s& =$ 0s$)- $'$ ##&*$' $#$+&*&s s0%&''<*&-s $$*)-*$)-s )& #-s %$*>0&s USTs/. L$s '&0#$+(-*&s "&)&'$#&s Es%$%$#&s &(&* &s& '&>0(s(%- )& +(&''& s0%&''<*&- $'$ %$*>0&s )& +-0s%(#& #-s %$*>0&s )& >0(+-s. L-s T$*>0&s USTs 0&'$ )& s&'(+(- )&&* s$+$'s& )&# s0&#- - s&' '&##&*$)-s +-* 0* $%&'($# s?#()- (*&'%&. E# D&$'%$&*%- )& R&+0's-s N$%0'$#&s )& I-K$ =$ )&s$''-##$)- 0* )-+0&*%- 0$ $'$ &# $#$+&*$(&*%- +(&''& )& %$*>0&s, >0& &s&+(+$&*%& &*+(-*$ $# '&##&*- #0()-.
2.&.3 — LAS MINAS L$s (*$s $$*)-*$)$s =$* s()- ##&*$)$s +-* MRBC, $s s& &#((*$ &# $++&s-, s& '&(&*& &# $s&*%$(&*%- - #$ $+00#$+(?* )& #-s $s&s &#('-s-s, +-'%$*)- &# s0(*(s%'- )&# -&*- >0& &(%$ $ #$ &: (*+&*)(-s, '&)0+& - &#((*$ #$ )&+$*%$+(?* )& <+()-s. Es (-'%$*%& >0& &# #0()- )& #$ &:+#$ s& $#(>0& +-* 0* s0(*(s%'- +-*s%$*%& $'$ $+(#(%$' #$ +-&'%0'$ (*((:$' #$ +$*%()$) )& 0*%-s )& (*&++(?* - $#(+$+(?*. S-#- &* &# -&s%& )& EE.UU. =$ $'-($)$&*%& 25@,@@@ (*$s $$*)-*$)$s )& $#%- '(&s-.15 E# MRBC 0&)& 0s$'s& $'$ ##&*$' #$ (*$ $*0#$'#$ +-#&%$&*%&, - #->0&$' $#0*$s <'&$s &* $'%(+0#$', '&&*(' &# $s&*%$(&*%-, #$ &*%'$)$ )& $&*%&s &%&'*-s, &#((*$' - '&)0+(' #-s <+()-s 0 -%'-s #0-s )$(*-s. L$s (*$s s0%&''<*&$s )& +$'?* $$*)-*$)$s &* &# &s%& )& EE.UU. =$* s()##&*$)$s +-* MRBC >0& 0& $*0$+%0'$)- $ $'%(' )& $'(-s )& #-s '-)0+%-s )& #$ +-0s%(?* )& +$'?* >0& &'$* '-)0+()-s $'$ s0 (s- '-?s(%-. 2.9 — MEDIOS NUCLEARES E# MRBC s& 0s$ &* #-s &)(-s *0+#&$'&s $'$ #$s $#(+$+(-*&s +-*&*+(-*$#&s +-- #-s )&s+'(%-s '&($&*%&. P'--'+(-*$ &*%$$s s(*((+$%($s -' &*+($ )&# '&##&*- '$*0#$' +-*&*+(-*$# 0&s #$ +-#-+$+(?* '&-%$, )(s(*0& #$ &-s(+(?* )&# &'s-*$# $ #$ '$)($+(?*. E# MRBC %$(* 0&)& 0s$'s& +-- $#(+$+(?* F*(+$ &* #-s &)(-s *0+#&$'&s, +-- #$ &s%$(#(:$+(?* )& )&s&+=-s, &# &*+$s0#$(&*%- )& #$s %0&'$s '&%('$)$s %$*>0&s, &*+$s0#$(&*%- )& #-s s(%(-s )& )(s-s(+(?* )& )&s&+=-s, #$s *0&$s +-*s%'0++(-*&s )& $s0'&'-s. E# MRBC 0&)& 0s$'s& $'$ 0*$ $$ $#($ )& >0(+-s '$)(- *0+#&)-s ; R&>0&'((&*%-s )& &s%$(#(:$+(?*.
2.1 — RECIMENTACIÓN DE PUENTES E# MRBC s& =$ 0s$)- &* $'(-s &s%$)-s -' s&' 0* '-+&s- &(+(&*%& +-* '&s&+%$ #-s +-s%-s, $'$ #$ '&=$(#(%$+(?* )& 0&*%&s. E# '-+&s- '&>0(&'& -*&' $s%$*%&s $#+$*%$'(##$s $- &# 0&*%& $'$ -+0$'s& )& #-s '&>0(s(%-s =()'-#?(+-s. S& -*& 0* )(>0& -' &*+($ )& $-s &%'&-s )& #$ $#+$*%$'(##$ s/ #$ $#+$*%$'(##$ s/ s& +0'& +-* $#F* %&()- $'$ (&)(' $# MRBC #0(' &* #$s 0*%$s. Es%$ $#+$*%$'(##$ s/ s& ($ &* &# '&##&*- '$*0#$'. A +-*%(*0$+(?*, s& $#(+$ &# MRBC =$s%$ #-s 15@ 6 (*./ )&s)& #$ s0&'(+(& 0(&'& 0* &'-)- )& -' #- &*-s 72 =-'$s $*%&s >0& &# MRBC s& ##&& $# -*)- )&# #$*%&# $ %'$s )& $0&'-s =&+=-s &* &# +-'$:?* )&# #$*%&#. D&s0s, s& >0(%$ #$ '&(##$ &# #$*%&# s& &*s$*+=$. E# (s- '-+&)((&*%- s& +-#&%$ &*%-*+&s &* &# #$)- -0&s%- )&# 0&*%&. E# %'$$- s& =$+& $- +-*)(+(-*&s )& %'<(+-. L$ +-$ )& #$ +$''&%&'$ &*+($ )& #$ $#+$*%$'(##$ s/ &s #$ F*(+$ (s%$ )& >0& $#0*$ &: =0- 0* 0&*%&. O(+($#&s )& I-K$ DOT &s%($* >0& &# +-s%- )& +0$%'- '&+(&*%$+(-*&s &s &>0($#&*%& $ 0* '&&#$:- s(&'& +0$*)- &s%$ %&+*-#-$ 0&)$ s&' &#&$)$. CAPÍTULO 3 — LOS MATERIALES 3.1 — GENERAL L$s &:+#$s )& MRBC +-*&*+(-*$#&s, *-'$#&*%& +-*s(s%&* &* $0$, #-s +-*s-#()$)-s -'%#$*), +&*(:$ &#$)-'$ 0 -%'-s '-)0+%-s s((#$'&s, 0#%$ $'&$)-s '0&s-s - $-s. A#0*$s &:+#$s +-*s(s%&* &* $0$, +-*s-#()$)-s -'%#$*), s?#- +&*(:$ -#$)-'$. P$'$ &# MRBC &s&+($# )& B$$ )&*s()$)
MRBC;BD/ #$s &:+#$s, s-* )&s+'(%$s &* C$%0#- 8 )& &s%& (*-'&, &s%$ &:+#$ +-*s(s%& &* +&&*%- -'%#$*), '-+($)-, &s0$ '&-'$)$. A0*>0& #-s $%&'($#&s 0s$)-s &* #$s &:+#$s )& MRBC +0#$* #$ ASTM 0 -%'-s '&>0(s(%-s *-'$#&s, &# 0s- )& $%&'($#&s &s%$*)$'(:$)-s *- s(&'& &s *&+&s$'(-. L$ s&#&++(?* )& $%&'($#&s )&& &s%$' $s$)$ &* #$ )(s-*((#()$), +-s%-, $#(+$+(?* &s&+(+$, #$s +$'$+%&'s%(+$s *&+&s$'($s )& #$ &:+#$, (*+#0s- #$ +$$+()$) )& #0-, 0&':$, <+(# &+$$+(?*, $)&+0$)$ )&*s()$). 3.2 — EL CEMENTO E# +&&*%- $*%(&*& #$ +-=&s(?* 0&':$ )& #$s &:+#$s )& MRBC. P$'$ #$ $-'$ )& $#(+$+(-*&s, &# T(- I - - &# T(- II -'%#$*), s-* +-*s-#()$)-s +-*-'& $ #$ ASTM C 15@ >0& +-F*&*%& s& 0%(#(:$. O%'-s %(-s )& +&&*%-, s& (*+#0&* &* &:+#$s +-*-'& #$ ASTM C 5!5, 0&)&* 0s$'s& s( +-* #$ +-'-$+(?* '&($ s& -%(&*&* '&s0#%$)-s $+&%$#&s. 3.3 — CENI$A !OLANTE L$ +&*(:$ )& -s+$, '-)0+%- )& #$ +-0s%(?* )&# +$'?* $ &+&s &-'$ #$ #0()&:. S0 0s- %$(* 0&)& $0&*%$' #$ 0&':$ 0&)& '&)0+(' &# s$*'$*)-, #$ +-*%'$++(?*, #$ &'&$(#()$). L$ -s+$ $#%$ )& +&*(:$ &* #$s &:+#$s $)&+0$)$s '-)0+& $$ )&*s()$) $# MRBC +0$*)- s& +-$'$ s%&, +-* &:+#$s +-* $#%-s -#F&*&s )& $'&$)-. L$s +&*(:$s -#$*%&s 0s$)$s &* #$s &:+#$s )& MRBC **&+&s(%$* s& +#$s((+$)$s +-* 0*$ " - C +-- &s )&s+'(%- &* #$ ASTM C 618. D&&* '&$'$'s& #-s &*s$-s )& &:+#$ $'$ )&%&'(*$' s( #$ &:+#$ '&0*('< #-s '&>0(s(%-s &s&+((+$)-s. R&('$s& $ ACI 232.2R $'$ $-' (*-'$+(?*. 3.4 — LAS ME$CLAS L$s &:+#$s +-* $('& (*+#0()- #-s $&*%&s (*+#0s-'&s 0&)&* s&' $#(-s$s &#&++(-*&s $'$ #$ $'(+$+(?* )& MRBC. L$ (*+#0s(?* )& $('& &* &# MRBC $0)$
$ '--'+(-*$' &-'$s &* #$ %'$$$(#()$), '&)0+& &# -'+&*%$& )& +-*%'$++(?*, -+$ - *(*0*$ s&'&$+(?*, *(- s$*'$)-, &s- 0*(%$'(- 0&'(' -)((+$+(-*&s $ #$s &:+#$s )& MRBC %(+$s. P$'$ '&&*(' #$ s&'&$+(?* $# 0%(#(:$' #-s -#F&*&s )& $('& $#%-s, #$s &:+#$s *&+&s(%$* s&' '--'+(-*$)$s +-* #$s )-s(s s0(+(&*%&s $'$ -&*%$' #$ +-=&s(?*. L$ $-'$ )& #$s &:+#$s )& MRBC +-* (*+#0s(?* )& $('& s-* +$$+&s )& s&' -&$)-s, &'- 0&)&* '&>0&'(' #$s '&s(-*&s 0&'('s&, +&&*%- &%'$ - &# 0s- )& 0*$ &:+#$ $+&#&'$*%&. E* %-)-s #-s +$s-s, )&&* '&$#(:$'s& #$s '0&$s '&($s $'$ )&%&'(*$' s( &s $+&%$#&. 3. — OTROS ADITI!OS E* #$s $#(+$+(-*&s &s&+($#(:$)$s +-- #$ &s%$(#(:$+(?* )&s&+=$)$, 0&)&* )(s&$'s& #$s &:+#$s )& MRBC $'$ (*+#0(' 0* >0(+- - $)(%(-s (*&'$#&s >0& s('&* $'$ ##&$' $# MRBC 0& #- '&>0(&'$. P0&)&* $'&$'s& $*&%(%$ - )-s(s )& =&&%(%$ $ MRBC $'$ '--'+(-*$' 0* &s+0)- $ #$ '$)($+(?* &* #$s $#(+$+(-*&s &* #-s &)(-s *0&+#&$'&s.
3." — EL AGUA E# $0$ >0& &s $+&%$#& $'$ #$s &:+#$s )& +-*+'&%- &s $+&%$#& %$(* $'$ #$s &:+#$s )& MRBC. L$ ASTM C;!4 '--'+(-*$ #$ (*-'$+(?* $)(+(-*$# s-'& #-s '&>0(s(%-s )& +$#()$) )&# $0$. 3.% — LOS AGREGADOS L-s $'&$)-s s-* $ &*0)- &# $-' +-*s%(%0&*%& )& 0*$ &:+#$ )& MRBC. E# %(-, '$)0$+(?*, #$ -'$ )& #-s $'&$)-s 0&)& $&+%$' #$s '-(&)$)&s s(+$s, +-- #$ #0()&: 0&':$ )& +-'&s(?*. &*&'$#&*%& s& 0s$* $'&$)-s s&F* #$ *-'$ ASTM C 33 -'>0& #-s '-)0+%-'&s )& +-*+'&%-s %(&*&* &s%-s $%&'($#&s &* &(s%&*+($. L-s $%&'($#&s '$*0#$'&s )& #$ &+$$+(?*, $0*>0& +-* '-(&)$)&s +$#()$) 0* -+- 0& &# $'&$)- )&# +-*+'&%- &s 0*$ 0&*%& -%&*+($# )& $%&'($#&s $'$ MRBC, )&& s&' +-*s()&'$)-. L$s $'($+(-*&s )& #$s '-(&)$)&s s(+$s )& #-s +--*&*%&s )& #$ &:+#$, s(* &$'-, %&*)'<* 0* &&+%- s(*((+$*%& &* &# +--'%$(&*%- )& #$ &:+#$. L$ $'&*$ #(-s$ >0& 2@ )& #$ &:+#$, $%'$(&s$ #$ $##$ )& 75
N-. 2@@/ =$ )&-s%'$)- s&' s$%(s$+%-'($. T$(*, #-s s0&#-s
+-* $#(-s '$)-s )& $'($+(?* =$* -s%'$)- s&' &(+$+&s. L-s s0&#-s +-* )-s(s )& $'+(##$, s(* &$'-, =$* -s%'$)- '-#&$s $# *- &:+#$'s& -' +-#&%-, #$ %&*$+()$) )& #$s &:+#$s, )&$*)$ )& $0$ )& &+&s-, +-*%'$++(?*, #$ 0&':$ (*+-*s%$*%&. Es%-s %(-s )& s0&#-, *-'$#&*%& *- s-* +-*s()&'$)-s $'$ #$s $#(+$+(-*&s )& MRBC. L-s $'&$)-s >0& s& =$* 0s$)- +-* (%- (*+#0&*9
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ASTM C 33. Es&+((+$+(?* )& $'&$)-s )&*%'- )& #$s '$)0$+(-*&s &s&+((+$)$s. L$ $'&*$ '0&s$ +-* $'&*$. 1! 34 (*./ &*-s &# $'&$)- +-* $'&*$. S0&#-s $'&*-s-s *$%(-s, >0& $s$
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#-s '-)0+%-s )&s&+=$)-s )& #$ +$*%&'$, &*&'$#&*%& 1@ 38 (*./ &*-s #-s $'&$)-s.
3.& — MATERIALES *UERA DE NORMA T$(* 0&)&* 0s$'s& $%&'($#&s *- &s%$*)$'(:$)-s >0& 0&)&* &s%$' )(s-*(#&s s&' 0(s(%-s )&# '-&+%-. Es%-s $%&'($#&s, s(* &$'-, )&&* '-$'s& '&(- $# 0s- $'$ )&%&'(*$' s0 +-$%((#()$) &* #$s &:+#$s )& MRBC. L-s &&#-s )& $%&'($#&s *- &s%$*)$'(:$)-s >0& 0&)&* s0s%(%0('s& +-$'&$)-s $'$ MRBC (*+#0&* #-s '-)0+%-s )& #$ +-0s%(?* )& $'(-s +$'-*&s, $'&*$ )&s&+=$)$ )& #$ 0*)(+(?*. L$s &+&+(-*&s s&'<* &# )&s&')(+()& +-*+'&%-, $'&$)-s +-$+%$)-s - &:+#$s >0& -)'$* (*#$'s& &* s&'(+()&()- $ '&$++(-*&s &$*s($s 0 -%'$s '&$++(-*&s. T$(* s& &+&%0$'<* #$ $)&'$, +&*(:$ )& $)&'$, 0 -%'-s $%&'($#&s -'<*(+-s >0& *- s-* +-*&*(&*%&s $'$ MRBC. L$s +&*(:$s -#$*%&s +-* -#F&*&s )& +$'-*- )&# 22 s& =$ 0s$)- +-* (%- $'$ MRBC. E* %-)-s #-s +$s-s, )&&* )&%&'(*$'s& #$s +$'$+%&'s%(+$s )&# $%&'($# 0&'$ )& *-'$, )&& '-$'s& #$ +-*&*(&*+($ )&# $%&'($# &* 0*$ &:+#$ )& MRBC $'$ )&%&'(*$' s( &s%& '&F*& #$s &s&+((+$+(-*&s '&>0(s(%-s. E* +(&'%-s +$s-s, #$s '&0#$+(-*&s &)(-$(&*%$#&s -)'$* '&>0&'(' #$ '& +$#((+$+(?* )&# $%&'($# &* '0%- - &* &:+#$ )& MRBC, - $'$ $-s +$s-s, $'$ '(-'(:$' s0 0s-. 3.9 — CENI$A DE ESTAN+UE O CENI$A DE CUBETA L$ +&*(:$ )& &s%$*>0&, %(+$&*%& &s 0*$ &:+#$ )& +&*(:$ )& #$ -s+$ +&*(:$ )&# -*)-, #$ #&+=$)$ &* 0*$ +0&%$ )& )(s-s(+(?* )& $#$+&*$(&*%-, %$(* 0&)& 0s$'s& &* MRBC. L$ '--'+(?* )& #$ +&*(:$ &s%$*+$ &* #$s &:+#$s '&s0#%$*%&s )&&*)& )& #$ )(s%'(0+(?* )& %$$-s )& $'%+0#$s. T(+$&*%&, 0&)& s0s%(%0('s& $'$ %-)$ #$ +&*(:$ )& -s+$ 0*$ -'+(?* )&# $'&$)- (*-
$0$. A# &*-s +0$*)- s& s&+$ $*%&s )& s&' &:+#$)$, #$ +&*(:$ )&# &s%$*>0& '&>0(&'& &# &:+#$*)- &s&+($# -'>0& &s%< *-'$#&*%& =F&)$. L$ +&*(:$ )& #$ +0&%$ &s s((#$' $ #$ +&*(:$ )&# &s%$*>0& &+&%- &* >0& s%$ *- &s *(*0*$ #&+=$)$ 0&)& )(s-*&'s& )& &##$ &* +0&%$s s&+$s - &* '&s&'-'(-s )& &(s%&*+($s. CAPÍTULO 4 — PROPIEDADES 4.1 — INTRODUCCIÓN L$s '-(&)$)&s )&# MRBC %(&*&* >0& &' +-* #-s #(%&s )& #-s s0&#-s &# =-'(?*. E# MRBC &s $*0$+%0'$)- +-* $%&'($#&s s((#$'&s $ #-s )&# =-'(?*, s& *&+&s(%$ )&# &>0(- &* 0*$ -)$#()$) s((#$' $# =-'(?*. E* s&'(+(- &# MRBC, s(* &$'-, 0&s%'$ '-(&)$)&s +$'$+%&'s%(+$s )& 0* s0&#-. L$s '-(&)$)&s )& MRBC s-* $&+%$)$s -' #$ &#&++(?* )& #$ &:+#$ #$s '--'+(-*&s )& #-s (*'&)(&*%&s &* #$ &:+#$. D&()- $ 0+=-s $+%-'&s >0& 0&)&* $&+%$' $# MRBC, 0&)& &(s%(' 0*$ $$ $#($ )& $#-'&s $'$ #$s $'($)$s '-(&)$)&s #- +0$# s& )(s+0%& &* #$ s(0(&*%& s&++(?*. 4.2 — PROPIEDADES PLSTICAS 4.2.1 — *LUIDE$ Es #$ '-(&)$) >0& )(s%(*0& $# MRBC )& -%'-s $%&'($#&s )& '&##&*-. L& &'(%& $# $%&'($# s&' $0%-; *(&#$)-'H #0(' '-*%$&*%& ##&*$' 0* $+-H &s $0%-+-$+%$#&, &s )&+(', >0& *- =$ *&+&s()$) )& 0%(#(:$' &>0(- +-*&*+(-*$# )& +-$+%$+(?*. Es%$ '-(&)$) '&'&s&*%$ 0*$ &*%$$ $-' )&# MRBC &* +-$'$+(?* +-* $%&'($#&s )& '&##&*- +-*&*+(-*$#&s, #-s +0$#&s s& )&&* -*&' &+<*(+$&*%& $)&0& &# MRBC #0& '&(&'& $#
=-'(?* %&+*-#-$ )& #&+=$)$s. O%'- '&s0#%$)- )& $'-&+=$' #$ $#%$ #0()&: )&# MRBC &s #$ '&s(?* =()'-s%<%(+$ >0& &&'+&. D-*)& #$ '&s(?* )& #0- &s 0*$ '&-+0$+(?*, &# MRBC 0&)& $#(+$'s& $'$ )(&'&*%&s +$$s, s%& &*)0'&+& $*%&s )& #$ +-#-+$+(?* )&# '?(- $#:$(&*%-. L-s &&#-s )-*)& 0&)&* 0s$'s& #-s $#:$(&*%-s F#%(#&s s-* &# +$s- )& -'0#$'(-s )& #(%& )& 0&':$ >0& s& 0s$* $'$ +-*%&*&' &# $%&'($#, - )-*)& s& &*+$s0#$* &* &# MRBC, &#&&*%-s #-%$*%&s, +-- #$s +$&'$s. L$ #0()&: 0&)& $'($' )& $+0&')- $ #$ *$%0'$#&:$ )&# #0()-, )&&*)(&*)- )& #-s '&>0&'((&*%-s. L-s %-)-s $'$ +-*-+&' #$ #0()&: (*+#0&* &# 0s- )& 0* +(#(*)'- $(&'%- )& 75 15@ 3 6 (*./, &s%$ &s ##$$)$ P'0&$ )& C-*s(s%&*+($ )& "#0- ASTM D 61@3/, $'$ &# =-'(?* *-'$# s& 0s$ &# +-*- )& '&&*((&*%- ASTM C 143/, +-*- )& #0- ASTM C !3!/. L$ 0&*$ #0()&:, s&F* &# %-)- )& #$ *-'$ ASTM D 61@3, s& #-'$ +0$*)- *=$ s&'&$+(?* *-%$#& +0$*)- #- +0(&'%- -' &# $%&'($# &s )& -' #- &*-s 2@@ 8 (*./ )& )(<&%'-. L$ #0()&: $s-+($)$ +-* &# +-*- )& '&&*((&*%- 0&)& s&' &'&s$)$ )& #$ s(0(&*%& $*&'$9
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"#0()&: $$9 &*-s )& 15@ 6 (*./H "#0()&: N-'$#9 15@ $ 2@@ 6 $ 8 (*./H "#0()&: $#%$9 $-' >0& 2@@ 8 (*./
L$ ASTM C !3!, >0& )&%&'(*$ &# #0- )& #&+=$)$, =$ s()- 0s$)$ +-* (%- +-* &:+#$s #0()$s >0& +-*%(&*&* $'&$)-s *- $-'&s $ 6 14 (*./. E# %-)s& )&s+'(& '&&&*%& &* &# C$%0#- 7 &* &# C-*%'-# )& C$#()$). E* L$ "#-'()$ & I*)($*$, #-s D&$'%$&*%-s )& T'$*s-'%& DOT/ +'-*-&%'$* &# #0- '&>0&'() $'$ 0* %(&- )& 3@ 5 s&0*)-s, +-- &)()$ $'$ &s%& %-)-.
4.2.2 — SEGREGACIÓN L$ s&$'$+(?* )& &#&+%-'&s &* #$ &:+#$ 0&)& -+0''(' &* *(&#&s $#%-s )& #0()&: +0$*)- &s$ #0()&: &s '-)0+()$ '(*+($#&*%& -' #$ $)(+(?* )& $0$. Es%$ s(%0$+(?* &s s((#$' $ #$ s&'&$+(?* &&'(&*%$)$ -' $#%$ )&'&s(?* &* #$s &:+#$s )& +-*+'&%-s. P'--'+(-*$*)- &# %(- )& &:+#$ $%&'($#&s $'-($)-s, 0&)& >0& s& #-'& 0* '$)- $#%- )& #0()&: s(* #$ s&'&$+(?*. P$'$ 0* MRBC $-'$#&&*%& #0()- s(* s&'&$+(?*, s& &(&* %-$' #$s &)()$s $)&+0$)$s $'$ '--'+(-*$' #$ +-=&s(?* +-*&*(&*%&. &*&'$#&*%& #$ +&*(:$ -#$*%& '&s-*)& )& s%-s '&>0&'((&*%-s, $0*>0& -%'-s *- +-=&s(-s &(&* =$s%$ 0* 2@ )&# $'&$)- %-%$# >0& s& =$ 0s$)-. E# 0s- )& $'&$)-s #0& &s%-s 0&)&* '-)0+(' $#-s '&s0#%$)-s, -' &&#-, #$ +-*%'$++(?* - &$*s(?*. E* #$s &:+#$s #0()$s, &# +--'%$(&*%s$%(s$+%-'(- )& MRBC s& =$ -%&*()- +-* #$ C#$s& ", &#&$* #-s -#F&*&s )& +&*(:$ %$* $#%- +-- $ 415 G3 7@@ #)3/ &* #$ +-(*$+(?* +-* &# +&&*%-, $'&*$, $0$. A#0*-s MRBC s& =$* )(s&$)- +-- &:+#$s s(* $'&*$, 0%(#(:$*)- F*(+$&*%& +&*(:$ -#$*%& +-- $%&'($# )&# '&##&*-. Es%$s &:+#$s '&>0(&'&* +$*%()$)&s 0 s0&'(-'&s )& $0$, &'- *- s& '-)0+& *(*0*$ s&'&$+(?* *-%$#&. 4.2.3 — EL APACIGUAMIENTO E# A$+(0$(&*%- s& %'$%$ )& #$ '&)0++(?* &* &# -#0&* )& MRBC +0$*)- &s%& (&')& $0$ $%'$$ &# $('& $ %'$s )& #$ +-*s-#()$+(?* )& #$ &:+#$. E# $0$ 0s$)$ $'$ #$ #0()&: 0& s& $#(+$ $'$ =()'$%$', &*&'$#&*%& &s $s-'()$ -' #$ %(&''$ +('+0*)$*%& - #(&'$)$ $ #$ s0&'(+(& +-- s$*'$)-. L$ $-'$ )&# $$+(0$(&*%- -+0''& )0'$*%& #$ +-#-+$+(?* &# '$)- )& $$+(0$(&*%)&&*)& )& #$ +$*%()$) )& $0$ #('& >0& s& =$$ #(&'$)-. T(+$&*%& s&F* '&-'%&s s& )$ 0* $$+(0$(&*%- )& 3 $ 6 18 $ 14 &*./ -' +$)$ (& )&
'-0*)()$). J$ s()- Es%- #$ +$*%()$) &*&'$#&*%& s& &*+0&*%'$ +-* #$s &:+#$s )& $0$ $#%$ s$%(s&+=-. L$s &:+#$s +-* $- -#0&* )& $0$ s0'&* -+- - *$)$ &# $$+(0$(&*%-, #-s &s&+&*&s - +(#(*)'- &#$-'$)-s $'$ #$ &$#0$+(?* )& 0&':$ *- '&s&*%$* *(*F* +$(- &*s0'$#& &* s0 $#%0'$ )&s)& >0& s& ##&*$* #-s +(#(*)'-s =$s%$ &# %(&- )& #$s '0&$s. 4.2.4 — TIEMPO DE *RAGUADO E# T(&- )& '$0$)- &s $'-($)$&*%& &# &'-)- )& %(&- '&>0&'()- $'$ >0& &# MRBC $s& )&# &s%$)- #0& &s%$ s& -*$ '()$. E# T(&- )& '$0$)- &s &* '$* $*&'$ )&&*)(&*%& )&# %(- +$*%()$) )& +&&*%$*%&s &* &# MRBC. L-s $+%-'&s *-'$#&s >0& $&+%$* &# %(&- )& &*)0'&+((&*%- s-*9
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E# %(- +$*%()$) )& $%&'($# +&&*%$*%&H L$ &'&$(#()$) '$)- )& s$%0'$+(?* )& #$ %(&''$ +('+0*)$*%& $# MRBCH L$ =0&)$) '&#$%($ )&# MRBCH L$ P'--'+(?* )& MRBCH L$ &:+#$ s0 '&#$+(?* +-* #$ %&&'$%0'$ $(&*%&H L$ =0&)$) $(&*%$#H L$ '-0*)()$) )&# '&##&*-
L-s %(&-s )& '$0$)- 0&)&* s&' +-'%-s, -' &&#-, )& =$s%$ 1 =-'$, &'&*&'$#&*%& %-$ )& 3 $ 5 =-'$s $- +-*)(+(-*&s *-'$#&s. U*$ '0&$ )& '&s(s%&*+($ $ #$ &*&%'$+(?* s&F* #$ ASTM C 4@3, 0&)& 0s$'s& $'$ &)(' &# %(&- )& &*)0'&+((&*%- - #$ +$$+()$) '-)0+%($ $'-($)$ )&# MRBC. D&&*)(&*)- )& #$ $#(+$+(?*, #-s $#-'&s )& &*&%'$+(?* >0& s& '&>0(&'&* s-*
&*%'& 5@@ $ 15@@ #-s +0$#&s $s&0'$* 0*$ $)&+0$)$ *-'$# +$$+()$) '-)0+%($. 4.2. — BOMBEADO E# MRBC 0&)& $#(+$'s& +-* (%- +-* 0* &>0(- )& -&- +-*&*+(-*$# >0& -&$ =-'(?*. C-- +-* &# =-'(?*, #$ '--'+(?* )& #$ &:+#$ &s +'%(+$. D&& $)(+(-*$'s& $)&+0$)$&*%& #$s $'%+0#$s s?#()$s $'$ $*%&*&' #$ +-=&'&*+($ $)&+0$)$ $# %'$*s-'%$' &# $%&'($# $ %'$s )& #$ #*&$ )& #$ -$ $ $$ '&s(?* s(* >0& =$$ s&'&$+(?*. L-s '&s0#%$)-s )& '&##&*- +-* &:+#$s (*$)&+0$)$s 0&)&* s&'&$' &* #$ -$ -s%$+0#(:$' #$ #*&$ )& $s-. T$(*, &s (-'%$*%& $*%&*&' 0* #0- +-*%(*0- $ %'$s )& #$ #*&$ )& %'$*s(s(?* )& #$ -$. E# #0- (*%&''0()- 0&)& +$0s$' s&'&$+(?*, #- >0& %$(* -)'$ '&s%'(*(' &# #0- '-)0+(' 0*$ -s%'0++(?* &* #$ #*&$. P-' &&#-, s& 0s? 0* MRBC +-* $'&$)- #$$)- &* 0*$ '--'+(?* $#%$ s& -&? $ %'$s )& 0*-s 127 5 (*./, &# s(s%&$ -&$$ $ 0*$ &#-+()$) )& 46 3=-'$ 6@ )3=-'$/. E* -%'- &# &&#-, &# MRBC +-* 0* '&&*((&*%- %$* $- +-- 51 2 (*./ &'$ &*%'&$)- +-* (%- -' #$ -$ )& =-'(?* s(* #$ *&+&s()$) )& $'&$' &s0&':- )& +-*s-#()$+(?*. E# MRBC +-* -#F&*&s $#%-s )& $('& (*+#0()- 0&)& -&$'s&, $0*>0& s& )&& %&*&' +0()$)- )& +-*s&'$' $$s #$s '&s(-*&s )& #$ -$. A0&*%$' #$s '&s(-*&s )& #$ -$ 0&)& +$0s$' 0*$ ')()$ &* &# -#0&* )& $('& '&)0:+$ #$ +$$+()$) )& -&-. L$ +$$+()$) )& -&- 0&)& '&-':$'s& '(*)$*)- 0*$ +0()$)-s$ '--'+(?* $# $%&'($# )& '&##&*- (&*%'$s &:+#$. L$ +&*(:$ -#$*%& 0&)& $0)$' $ &-'$' &# -&- $+%0$*)- +-- 0* (+'- $'&$)- &* &# '&##&*- *0#-. E# +&&*%- %$(* 0&)& $'&$'s& +-* &s%& '-?s(%-. S(* &$'-, s(&'& >0& s& $'&0&* #-s
$%&'($#&s +&&*%$*%&s, s& )&& %-$' &* +0&*%$ #$ 0&':$ <($ >0& &# '&##&*s--'%$'<, &s%-, s( s& #$*&$* &+$$+(-*&s -s%&'(-'&s.
4.3 — PROPIEDADES DE SER!ICIO 4.3.1 — *UER$A (CAPACIDAD PORTANTE) L$ 0&':$ )& +-'&s(?* *- +-*(*$)$ &s 0*$ &)()$ )& #$ +$$+()$) )& %'$*s(s(?* )& +$'$ )&# MRBC. E# MRBC s--'%$ 0*$ 0&':$ )& +-'&s(?* )& @.3 $ @.7 MP$ 5@ $ 1@@ s(/, &s%- (0$#$ #$ +$$+()$) -'%$*%& $+&%$#& )& 0* s0&#- +-$+%$)-.
"(. 4.1E%'$&*)- MRBC +-* #$ &+$$)-'$. M$*%&*&' #-s *(&#&s $-s )& '&s(s%&*+($ &s 0* -&%(- $'$ '-&+%-s )-*)& s& =$'<* &+$$+(-*&s -s%&'(-'&s. A#0*$s &:+#$s >0& s-* '&s(s%&*%&s &* &)$)&s %&'$*$s +-*%(*F$* $*$*)- '&s(s%&*+($ +-* &# %(&-, #- >0& =$+& )(+(# 0*$ &+$$+(?* 0%0'$. L$ s&++(?* 4.3.7 '--'+(-*$ #$ (*-'$+(?* $)(+(-*$# s-'& #$ &+$$+(?*. 4.3.2 — DENSIDAD
L$ )&*s()$) *-'$# )& MRBC =0&)&+()- &* &# #0$' &s%< &* &# '$*- )& 184@ $ 232@ G3 115 $ 145 #%3/ >0& &s $-' >0& #$ $-'$ )& $%&'($#&s +-$+%$)-s. U*$ &:+#$ )& MRBC s-#- +-* +&*(:$ -#$*%&, +&&*%-, $0$ )&& %&*&' 0*$ )&*s()$) &*%'& 144@ $ 16@@ G3 !@ $ 1@@ #%3/ .12 L$ +&*(:$ )& &s%$*>0& - +0&%$ &* 0*$ &:+#$ )& MRBC '-)0+& %(+$&*%& )&*s()$)&s &* &# '$*- )& 136@ $ 176@ G3 85 $ 11@ #%3/. L$ )&*s()$) )&# MRBC s&+- &s s0s%$*+($#&*%& &*-' >0& +0$*)- &s%< =F&)- )&()- $ #$ ')()$ )& $0$. L-s 0(s(%-s )& +-*s-#()$+(?*. E* +-*%'$s%&, &# MRBC *- s& $s(&*%$ )&s0s )& &*)0'&+&'. M&)()$s %-$)$s &s&s )&s0s )& #$ +-#-+$+(?* )& 0* '&##&*- '$*)& )& MRBC -s%'$'-* >0& *- s& +-*%'$- *( s& $s&*%?.13 P$'$ 0* '-&+%- &* S&$%%#&, 0&'-* 0s$)-s 6@1 3 786 )3/ $'$ ##&*$' 37 12@ (&s/ &* 0* '$$# '-0*)-. L$ +-#-+$+(?* %-? 4 =-'$s &# $s&*%$(&*%- %-%$# s& (*-'? >0& 0& $'-($)$&*%& )& 3 18 (*./. 4.3.4 — AISLAMIENTO TERMAL,CONDUCTIBILIDAD L$s &:+#$s )& MRBC +-*&*+(-*$#&s *- s-* +-*s()&'$)$s +-- 0&*-s $%&'($#&s $(s#$*%&s. C-* $('& (*+#0()- #$s &:+#$s +-*&*+(-*$#&s '&)0+&* s0 )&*s()$) $0&*%$* &# $#-' $(s#$*%&.
P0&)&* 0s$'s& $'&$)-s #(&'-s, (*+#0s- #$ +&*(:$ )&# -*)-, $'$ '&)0+(' #$ )&*s()$). L$s &:+#$s +-* &s0$s +�#$'&s +-- #$s )&s+'(%$s &* &# C$%0#- 8 %(&*&* )&*s()$)&s $$s '&s&*%$* 0&*$s '-(&)$)&s $(s#$*%&s. D-*)& s& )&s&$ +-*)0+%((#()$) %&'$# $#%$, +-- &* 0* '&##&*- s&+0*)$'(- $'$ +$#&s &#+%'(+-s &* &# s0s0&#-, #$ )&*s()$) $#%$ #$ -'-s()$) $$ &* &# <'&$ )& +-*%$+%- )& #$ s0&'(+(& <($ &*%'& #$s $'%+0#$s s?#()$s/ &s )&s&$#&. C-- #$ =0&)$) $0&*%$ #$ )&*s()$) =$+& >0& $0&*%& s0 -#0&*, $# s&+$' &-'$ #$ +-*)0+%((#()$) %&'$#. O%'-s $'<&%'-s $ +-*s()&'$' &'- )& &*-' (-'%$*+($/ s-* #$ -'$ )& #$ $'%+0#$, +--s(+(?* (*&'$# +#$s((+$+(?* s&F* &# %$$-, +$'$+%&'s%(+$s )& #$ '$)$+(?*, -#0&* -'<*(+- &s&s&+(+-. 4.3. — PERMEABILIDAD L$ &'&$(#()$) )& #$ $-'$ )& #-s MRBC &+$$#& &s s((#$' $ #$ )& '&##&*-s '$*0#$'&s +-$+%$)-s. L-s $#-'&s %(+-s &s%<* &* &# '$*- )& 1@;4 $ 1@;5 +. s. L$s &:+#$s )& MRBC +-* '&s(s%&*+($s 0& &s$ +-*%'$++(?* -+0''& &* (*0%-s +-* MRBC. L$ F#%($ +-*%'$++(?* #(*&$# &s%< &* &# '$*- )& @.@2 $ @.@5 .
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4.3.& — MÓDULO DE CORTE L$ '&s(s%&*+($ $ #$ +-'&s(?* s& 0&)& )&(*(' +-- #$ <($ '&s(s%&*+($ &)()$ )& 0* &s+(&* )& MRBC $ +$'$ $($#, %(+$&*%& &s%< &* &# '$*- )& 16@ $ 38@ MP$ 34@@ $ 7!@@ G/. E# ?)0#- )& +-'%& s& 0s$ $'$ &$#0$' #$ 0&':$ +-'%$*%& &s&'$)$ #$ )&-'$+(?* )&# MRBC. 4.3.9 — RESISTENCIA A LA CORROSIÓN L$ '&s(s%&*+($ $ #$ +-''-s(?* &* &%$#&s &&()-s &* MRBC =$ s()- +0$*%((+$)$ -' 0*$ $'(&)$) )& %-)-s &s&+(+-s $# $%&'($# >0& &s%< &* &# +-*%$+%- +-* &# MRBC. P0&)&* '&$#(:$'s& #$s '0&$s )& '&s(s%(()$) &#+%'(+$ &* &# MRBC )& #$ (s$ $*&'$ >0& s& +-$'$* #-s s0&#-s *$%0'$#&s -' +$0s$ )& #$ +-''-s(?* -%&*+($# &* #$ $#+$*%$'(##$ )& %0- )& &%$# +-''0$)- P'0&$ 643 C$#(-'*($/. E# +-*%&*()- )& =0&)$) )& #$ 0&s%'$ &s 0* $'<&%'- (-'%$*%& $'$ #$ '&s(s%(()$), #$s 0&s%'$s )&&* '-$' $ #$'- #$:- &# -#0&* )& =0&)$) &s&'$)-. L$ As-+($+(?* )& I*&s%($+(?* )& T0&'$ "''(+$ DF+%(# %(&*& 0* %-)- $'$ &$#0$' #$ +-''-s(?* -%&*+($# )& $%&'($#&s &* '&##&*-s s&+0*)$'(-s. E# '-+&)((&*%- )& #$ &$#0$+(?* &s%< $s$)- &* (*-'$+(?* )&)0+()$ )& +(*+ '0&$s -s&'$+(-*&s9 s0+(&)$) '&s(s%(()$)H &# J - '$)- )& $+()&:H '&)0++(?* )& #$ -()$+(?* -%&*+($# &# '&)-/H #-s s0#$%-sH =0&)$). P$'$ 0*$ 0&s%'$ )$)$, s& &$#0$'-* $s(*$'-* #-s $'<&%'-s s&F* s0 +-*%'(0+(?* $ #$ +-''-s(?*.
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P'-)0+& 0* #0- -)((+$)- )& 27@ 1@;12 (*./ )& )(<&%'-H &# -#0&* )&
$('& &s )& 1.1H #$ )&*s()$) )& #$ #&+=$)$ )& 147@ G3 !1.5 #%3/. 15
P'-)0+& 0* #0- -)((+$)- )& 43@ 16;34 (*./ )&# )(<&%'-H &# -#0&* )&
$('& &s )& @.6H #$ )&*s()$) )& #$ #&+=$)$ &s )& 145@ G3 [email protected] #%3/. 16
D&$'%$&*%- )& E*&'$ D&$'%&*% - E*&', DOE/ S$$**$= R(&' S(%&
MRBC (. 17
DOE S$$**$= R(&' S(%& MRBC 0s$*)- &* #$ &:+#$ +&*(:$ )& &s%$*>0& - )&
+0&%$. 18
M&:+#$ )& +&*(:$ )& +0&%$
1!
M&:+#$ +-* +&*(:$ )& &s%$*>0&.
L$ s(0(&*%& s&+0&*+($ &&#((+$ #$ $*&'$ &* >0& s& )&& +$'$' 0* +$(?* &:+#$)-' )& #$ -'$ +-''&+%$9
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A)(+(-*$' 0* 7@ $ 8@ )&# $0$. A)(+(-*$' &# 5@ )&# $'&$)- )&# '&##&*-. A)(+(-*$' %-)- &# +&&*%- #$ +&*(:$ )& -#$*%& '&>0&'()$. A)(+(-*$' &# '&s%- )&# $'&$)-. A)(+(-*$' &# '&s%- )& $0$.
P$'$ &:+#$s )& MRBC +-0&s%$s )& +&*(:$ -#$*%&, +&&*%-, $0$, *(*F* $'&$)-, 0* %-)- )& &:+#$)- &(+$: +-*s(s%& &* -*&' (*(+($#&*%& &* &# &:+#$)-' )&# +$(?* &# +&&*%- &# $0$. D&s0s )& &:+#$' &s%-s $%&'($#&s +-#&%$&*%&, s& $'&$ #$ +&*(:$ -#$*%&. E# &:+#$)- $)(+(-*$# )&& =$+&'s& -' 15 (*0%-s +-- *(-, $'$ '-)0+(' 0* #0()- =--*&-. L$ &:+#$)-'$ %'$$$ &(+$:&*%& $'$ $-s +$s-s, $'$ )-s(s )& +&*(:$s -#$*%&s $$s, +-- $'$ -%'$s )-s(s 0& &s 0* 0&* -'%$)-' $- &# )&?s(%- )& $#(&*%$+(?*. Es%& %-)- )& $#(&*%$+(?* &* &# &:+#$)-' &s 0+=- 0& #$ $#(&*%$+(?* )&s)& &# s(#-. P$'$ '&&*(' -*%&$*)- )&*%'- )& #$ +&*(:$ )& #$ -s+$, 0* $(%$)-' &+<*(+- - &# ('$)-' s& 0s$ &* &# )&?s(%- )& $#(&*%$+(?*. N-'$#&*%& s& $'&$ &# +&&*%- $# &:+#$)-' -' &)(- )&# -'%$)-' )& $#$+&*$(&*%- )&# s(#-. S( s& 0s$ +&&*%- &$>0&%$)-, s& $'&$ )('&+%$&*%& &* &# &:+#$)-'. L$ &)()$ )& #$ )-s(s )& MRBC &:+#$)- $ %'$s )& 0* M&:+#$)-' &s%$ &*&'$#&*%& $s$)- &* &# &s- &* #0$' )&# -#0&*, >0& s& 0s$ %(+$&*%& $'$ &# =-'(?*.
".3 — TRANSPORTACIÓN L$ $-'$ )& #$s &:+#$s )& MRBC s& %'$*s-'%$ &* #-s +$(-*&s &:+#$)-'&s. L$ $(%$+(?* )&# MRBC s& '&>0(&'& )0'$*%& &# %'$*s-'%& &# %(&- )& &s&'$ $'$ '-%&&' &# $%&'($# )& #$ s0s&*s(?*. B$- +(&'%$s +('+0*s%$*+($s )&# s(%(-, &# MRBC s& =$ %'$*s-'%$)- s( $(%$'s& &* &# &>0(- +-- &* #-s +$(-*&s )& &'%&)&'-. A0*>0& &# +$(?* )& &'%&)&'- '--'+(-*$ +(&'%$ $(%$+(?* -' +$0s$ )& #$ $'+=$, *- &s s0(+(&*%& $(%$+(?* $'$ (&)(' >0& s& s-#()((>0&* #$s :-*$s s0&'(+($#&s )&# $%&'($#. E# MRBC s& =$ %'$*s-'%$)- &(+$:&*%& -' -$s -%'-s %(-s )& &>0(-s )& %'$*s&'&*+($. B-&$*)- &# MRBC, #$ +&*(:$ -#$*%& $+%F$ +-- 0* #0'(+$*%& >0& '&)0+& #$ '(++(?* &* #$ %0&'$. S(* &$'-, #$ %&%0'$ (*$ )& #$ +&*(:$ -#$*%& '&>0(&'& >0& #$ -$ &s% &* &+&#&*%&s +-*)(+(-*&s $)&+0$)$&*%& #(($. E# MRBC %$(* s& =$ %'$*s-'%$)- &(+$:&*%& -' #$ &)(+(?* -#0%'(+$ +-*%(*0$, &:+#$*)- &* &# &>0(- )& +-*+'&%- &>0(- MCM/ ACI [email protected]/, $'%(+0#$'&*%& s( s& )&s&$$ '&)0+(' &# %(&- )& &s&'$. L$ &*%$$ $-' )& &s%& &>0(- &s >0& s& 0&)& &:+#$' &* &# #0$' )& %'$$- $0s%$' #$ +$*%()$) )& $0$ *&+&s$'($ $'$ #-'$' #$ #0()&: )&s&$)$. Es &* &')$) $'%(+0#$'&*%& $'$ &:+#$' (* s(%0 &# MRBC. L-s MCMs &s%<* '-(s%-s +-* '&+((&*%&s s&$'$)-s $'$ &# $0$, #-s $%&'($#&s +&&*%$*%&s, #-s $'&$)-s. L-s $%&'($#&s s& %'$*s-'%$* $# s(%(- )&# %'$$- )?*)& #$ &:+#$ +-*%(*F$ )& $0$ $%&'($#&s s&+-s =$+&* 0* &+&#&*%& <+(#&*%& '&0#$)- MRBC. ".4 — COLOCACIÓN E# MRBC 0&)& +-#-+$'s& &* +$s+$)$s, -'%$)-'&s, +0-s, - -$s, (&*%'$s )&&*)(&*)- )& #$ $#(+$+(?* s0 $++&s((#()$). L$ ('$+(?* (*%&'(-' - #$ +-*s-#()$+(?* *- s& '&>0(&'& -'>0& &# MRBC s& +-*s-#()$ $- s0 '-(- &s-.
A0*>0& 0&)& +-#-+$'s& &* +0$#>0(&' -+$ )&# $-, &# MRBC )&& '-%&&'s& )& #$ +-*&#$+(?* =$s%$ >0& =$$ &*)0'&+()-. M%-)-s )& +0'$*)- &s&+((+$)-s $'$ &# =-'(?* *- s-* &s&*+($#&s +-*s()&'$)-s $'$ MRBC. P$'$ &# '&##&*- s&+0*)$'(- )& %'(*+=&'$, &# MRBC s& -*& *-'$#&*%& )& -'$ +-*%(*0$. P$'$ +-*%&*&' &# MRBC $# ##&*$' #$s %'(*+=&'$s #$'$s, $(&'%$s &* $s&s - #$s &s%'0+%0'$s $(&'%$s +-- %F*&#&s, #-s 0*%-s (*$#&s 0&)&* s&' +$&+&$)-s $ '$*&# +-* s$+-s )& $'&*$, %(&''$ '&'&s$)$, - &:+#$s 0& &s #$ -'$ 0& '&%(&*& #$s $'&)&s %$(* 0&)& '&>0&'(' >0& s& -*$ MRBC &* #-s $#:$(&*%-s $'$ '&&*(' )&''0&s s-'& #$ $'&). E# MRBC s& =$ 0&s%- &(+$:&*%& $- &# $0$11 s(* 0*$ s(*((+$*%& s&'&$+(?*. E* #$s <'&$s +-*(*$)$s, &# MRBC )&s#$:$ &# $0$ $ #$ s0&'(+(& )?*)& 0&)& &%'$&'s& <+(#&*%&. D&()- $ s0 +-*s(s%&*+($ 0 #0()$, &# MRBC 0&)& #0(' &* '$*)&s )(s%$*+($s -' 0+=- %(&-, ##&*$' +$()$)&s &* #0$'&s )& )(+(# $#+$*+&. N- =$ *&+&s()$) )& #(($', -'>0& +0$*)- #$ #&+=$)$ ##&*$ #$s (''&0#$'()$)&sH &s &*+$s0#$)- +0$#>0(&' $%&'($# s0&#%-.
". — PRECAUCIONES "..1 — PRESIÓN #IDROSTTICA E# MRBC s& -*& $ &*0)- &* +-*)(+(?* '<+%(+$&*%& #>0()$ $s &&'+&'< 0*$ '&s(?* =()'-s%<%(+$ +-*%'$ #$s $'&)&s )&# s?%$*- 0 -%'$s &s%'0+%0'$s =$s%$ >0& &*)0'&:+$. E* '&##&*-s '-0*)-s, &s $ &*0)- *&+&s$'(- -*&' &# MRBC &* +$$s F#%(#&s. "..2 — CONDICIÓN DE RAPIDE$ E# MRBC #>0()- &* #$s &+$$+(-*&s '-0*)$s &s &s&*+($#&*%& 0* '(&s- &* #$ $'&*$ -' +-*s(0(&*%& )&& +0'('s& =$s%$ >0& &# &*)0'&+(&*)- -+0''$. "..3 — LOS TAN+UES *LOTANTES TUBERÍAS Y CABLES D&&* $($*:$'s& )& $*&'$ s&0'$ $'$ >0& *- #-%&* )0'$*%& #$ +-#-+$+(?* )& MRBC. CAPÍTULO 7CONTROL DE CALIDAD %.1 — GENERAL L$ &(&*+($ )&# +-*%'-# )& +$#()$) CC/ $'$ &# MRBC 0&)& $'($' )& $+0&')- $ +$)$ '-&+%-, )&&*)(&*)- )& &&'(&*+($s $*%&'(-'&s, -' &&#-, #$ $#(+$+(?*, #-s $%&'($#&s &* '0%- >0& 0s$*, &# *(&#$)- +-* #$ +$#()$) )&s&$)$. U* '-'$$ )& CC 0&)& s&' %$* s(#& +-- 0*$ s0&'(s(?* )&# %'$$%&'(*$)- $'$ s$&' s( s& =$ 0%(#(:$)- #$ &:+#$ >0& s& =$$ )&%&'(*$)- s&F* #$s '0&$s )& #$-'$%-'(-.
L$ $#(+$+(?* )&# CC &s +'%(+$ +0$*)-, #-s $%&'($#&s *- &s%<* *-'$)-s, +0$*)- #$ 0*(-'()$) )&# '-)0+%- &s +0&s%(-*$#& s&F* #$s '0&$s, '&0#$' #$ +-*s(s%&*+($ #$ '&s(s%&*+($ 0&)& s&' $'-($)-. E* $-s +$s-s, +-- &:+#$ &* s&'(+(- 0&)&* &)('s& #$s '-(&)$)&s $'$ &$#0$' #$ +-*s(s%&*+($ )& #$ &:+#$ s0 +--'%$(&*%-. P$'$ #$ $-'$ )& #-s '-&+%-s, &# MRBC &s '-$)- '&($&*%& 0s$*)- #-s $%&'($#&s '&$#&s &* '0% $'$ +-*-+&' #$ +$'$+%&'s%(+$ )& #$ &:+#$ &* &s%$)- '&s+- #0()&:, +-*s(s%&*+($, &s- -' 0*()$)/ &* &s%$)- &*)0'&+()- '&s(s%&*+($, )0'$(#()$), &'&$(#()$)/. S(0(&*)- &# &s>0&$ )&# '-'$$ )& +-'-$+(?* (*(+($#, '-$', 0&)&* +-*s(s%(' &* 0* s(#& +=&>0&- (s0$#, - 0&)& (*+#0(' &)()$s )& +-*s(s%&*+($ '0&$s '&s(s%&*+($ $ #$ +-'&s(?*. C-- s& )(- $*%&'(-'&*%&, &# '-'$$ )& CC 0&)& s&' s(#& - )&%$##$)-. Es '&s-*s$(#()$) )&# s0&'(s-', )&%&'(*$' 0* '-'$$ )& CC $'-($)- >0& $s&0'$'< >0& &# '-)0+%- s&'< $)&+0$)- $'$ &# 0s- #$*&$)-. S& =$* 0s$)- #-s '-+&)((&*%-s s(0(&*%&s %-)-s )& #$ '0&$ $'$ &$#0$' #$s &:+#$s )& MRBC. %.2 — PRUEBAS L$s '0&$s )&# MRBC >0& s& =$+&* &* &# s(%(- )&# '-&+%- )&&* '&$#(:$'s& )& $+0&')- $ #$ *-'$ ASTM D 5!71. %.3 — CONSISTENCIA Y PESO POR UNIDAD D&&*)(&*)- )& #$ $#(+$+(?* '&>0(s(%-s )& +-#-+$+(?*, #$s +$'$+%&'s%(+$s )& #0- 0&)&* s&' (-'%$*%&s. L$ +-*s(s%&*+($ )&# MRBC 0&)& $'($' +-*s()&'$#&&*%& )& #
#$s &:+#$s )& MRBC %'$$$* (&* +-* *(&# )& #0-, &s- -' 0*()$) +-=&s(?* $'-($)-s. L$ %$#$ 7.1 )&s+'(& #-s %-)-s >0& 0&)&* 0s$'s& $'$ &)(' #$ +-*s(s%&*+($ &s- -' 0*()$). T$#$7.1 P'0&$s P'-+&)((&*%-s $'$ D&%&'(*$' #$ C-*s(s%&*+($ P&s- -' U*()$) $'$ M&:+#$s )& MRBC.
%.4 — PRUEBAS DE RESISTENCIA E# MRBC s& 0s$ &* 0*$ $'(&)$) )& $#(+$+(-*&s >0& '&>0(&'&* #$s )(&'&*%&s '&s(s%&*+($s +$'$+%&'s%(+$s. D&&* ()&*%((+$'s& #$s '&s(s%&*+($s <($s >0& s& $#(+$'<* &* &# MRBC $'$ )&%&'(*$' #-s '&>0(s(%-s '& '&s(s%&*+($ *(-s. E* 0+=-s +$s-s, s(* &$'-, s& *&+&s(%$ #((%$' #$ 0&':$ <($ )&# MRBC. Es%&s &s&+($#&*%& *&+&s$'(- )-*)& s& #$*&$ >0(%$' &# $%&'($# &* 0*$ &+=$ -s%&'(-'. L$ '&s(s%&*+($ )&# MRBC 0&)& s&' &)()$ -' $'(-s %-)-s T$#$ 7.2/. P'0&$ *- +-*(*$)$ )& '&s(s%&*+($ $ #$ +-'&s(?* &s #$ 0(%$' #-s -#)&s )& #-s &s&+&*&s. E# +0()$)- $)(+(-*$# &* &# $*&-, %'$*s-'%$+(?*, +0'$)- '-+&)((&*%-s )& '0&$ s&'<* %-$)-s &* +0&*%$ -'>0& #-s &s&+&*&s s-* $ &*0)- 0 '<(#&s.
L$s %+*(+$s )& )&s-#)$)- (*+#0&*9 #$ &#$-'$+(?* )& 0* $0&'- %$#$)'$*)- &* &# +&*%'- )&# -*)- )& +(#(*)'- - &# 0s- )& 0*$ s-*)$ +$#(&*%&, s& #& $$)& 0*$ $#-=$)(##$ )& &##?* )& -#(s%&' s&+$ &* &# -*)- (*%&'(-' )&# +(#(*)'-H $'$ &# )&s+$'- <+(# )&# &s+(&* +-* - s(* #$ +-*)&*s$+(?* $'&$, =0*)(&*)- &* #-s -#)&s 0* +0+=(##- +$#(&*%&, '&s(-*$*)- #-s -#)&s s-s%&*(&*)- +-* #$ +(*%$ )&# +-*)0+%- $'$ &# #&$*%$(&*%- <+(# )&s0s. E# 0s- )& -#)&s )& #&+=$)$ %$(* =$ s()- &#&$)- $'$ '-$' MRBC.
E* &# %-)-, +0$%'- 15@ 15@ 2@@ 6 6 8 (*./ s& )&%&'(*$* #$s 0*()$)&s )& $#$(#&'$ )&# +-*+'&%-s &* $#%$ '--'+(?* &* 0* $#-' *-(*$# )& 1@@ 4 (*./ 0* &s$+(- +0$)'$)- &* &# +&*%'-. L-s +0$%'- #$)-s &# -*)- )&*%'- )& #-s -#)&s &s%<* '$$)-s +-* s&$#&s &* &# $&# $'$ s&'(' +-- 0*$ s&$# )& #$ $%$)0'$ $'$ '&-&'#<+(#&*%&. CAPÍTULO & — MRBC? DE BAJA DENSIDAD USANDO LA ESPUMA PRE*ORMADA &.1 — GENERAL Es%& +$%0#- s& #((%$ #$s &:+#$s )& B$$ )&*s()$) )& MRBC MRBC;BD/, 0s$*)- #$ &s0$ '&-'$)$ +-- $'%& )& #$s '--'+(-*&s )& #$ &:+#$. L$ &s0$ '&-'$)$ &s =&+=$ $ $s& )& +#0#$s $'&$s &*&'$)$s )& #$ &s0$ +-*+&*%'$)$ &* -'$ )& >0(+-s. E# 0s- )& &s0$ '&-'$)$ &* #$s &:+#$s )& BD ;MRBC &'(%& )&s$''-##$' &# '--'+(-*$(&*%- )& #$ &:+#$ %&*(&*)- #$
MRBC;BDs s-* )(s&$)-s %(+$&*%& s&F* &# &s- -' 0*()$). L$ $+0#%$) )& '--'+(-*$' &:+#$s >0& %(&*&* &s-s -' 0*()$) $-s &s &s&+($#&*%& &*%$-s$ +0$*)- s& &*+0&*%'$* +-*)(+(-*&s )& s0&#-s )(#&s &# &s- )&# '&##&*)&& (*((:$'s&. E# MRBC;BD %$(* &s &(+$: +-- '&##&*- )& $(s#$(&*%-. E# $('& &* #$ &s%'0+%0'$ *0#$ - +�#$', (*=&'&*%& &* #$s &:+#$s )& BDMRBC, '--'+(-*$ &# $(s#$(&*%- %&'$# 0&)& $'&$' $#0*$s '-(&)$)&s $'$ #$ (%($+(?* )& '(&s-s $# $%&'($# )& '&##&*-. &.3 — MATERIALES E# +&&*%- )& P-'%#$*) >0& &s &# %(+- +--*&*%& )& #$ +$'&%$ $'$ '-)0+(' #$ $-'$ )& #$s &:+#$s )& MRBC;BD. L$ $s%$ )& +&&*%- #(($ $'$ BDMRBCs 0&)& '-)0+('s& $'&$*)- #$ &s0$ '&-'$)$ $ #$ $s%$ )0'$*%& &# &:+#$)-. E# $('& &*+$s0#$)- )&*%'- )& #$ &s0$ '&-'$)$ &s $ &*0)- &# +--*&*%& '($'(- >0& '-)0+& -#0&* &* #$s &:+#$s )& MRBC;BD. L-s MRBC;BDs %$(* 0&)& )(s&$'s& $'$ (*+#0(' #-s '&##&*-s (*&'$#&s +-+&*(:$ -#$*%& - $'&*$. C0$*)- &s +-*s()&'$)- &* #$s +$'&%$s &# 0s- )& $%&'($#&s )& '&##&*- (*&'$# *&s%$*)$'(:$)-, s& '&+-(&*)$ =$+&' '0&$s '&($s $ #$ &:+#$ )& MRBC;BD. E* &*&'$# %-)$s #$s &s0$s s-* '&-'$)$s - '&;&*&'$)$s, +-* &# 0s- )& )(s-s(%(-s +-*-+()-s +-- &*&'$)-'&s )& &s0$. Es%-s )(s-s(%(-s &*&'$)-'&s )& &s0$, s(* &$'-, 0&)& s&' +-*(0'$)-s &s&+(+$&*%& $'$ s&' 0s$)-s +-* 0* $&*%& &s0$*%&. E# $'(+$*%& )&# $&*%& &s0$*%& >0& s& 0%(#(:$'<, )&& s&' +-*s0#%$)- $'$ -%&*&' &s&+((+$+(-*&s '&+-&*)$+(-*&s $'$ #$ &*&'$+(?* )& &s0$. L-s &s0$*%&s 0%(#(:$)-s $'$ '-)0+(' #$ &s0$ '&$'(+$)$ )&&* %&*&' 0*$ +--s(+(?* >0(+$ +$$: )& '-)0+(' #$s +#0#$s &s%$#&s )& $('& >0& '&s(s%$* #$s
0&':$s, s(+$ >0(+$, (0&s%$s )0'$*%& #$ &:+#$, +-#-+$+(?*, &# '$0$))& #$ &:+#$ )& MRBC;BD. S( &# $+- )& $('& - #$ &s%'0+%0'$ +�#$' )&*%'- )& #$ &:+#$ *- &s &s%$#&, s& %&*)'< +-- '&s0#%$)- 0* $0&*%- *- 0*(-'& &* #$ )&*s()$). L-s '-+&)((&*%-s $'$ #$ &$#0$+(?* )& &s0$*%&s s& &s&+((+$* &* #$ *-'$ ASTM C 7!6 ASTM C 86!. S& 0&)& &*+-*%'$' (*-'$+(?* $)(+(-*$# &* &# ACI 523.1R. &.4 — PROPIEDADES L$s '-(&)$)&s )&# MRBC;BD &s%<* '(*+($#&*%& '&#$+(-*$)$s +-* #$ )&*s()$). C0$*)- #-s $%&'($#&s >0& s& 0%(#(:$'<* s-* &s%$*)$'(:$)-s, s 0&)& '-)0+(' 0* MRBC;BD +-* #$s '-(&)$)&s )&*%'- )& #-s '$*-s )&s+'(%-s -' &# $'(+$*%& )&# $&*%& &s0$*%&. C0$)'- 8.1; P'-(&)$)&s T(+$s )& B$$ D&*s()$) MRBC s-'& #$ $s& )& #$ )&*s()$).
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2!@ $ 38@ 18 $ 24/ 38@ $ 48@ 24 $ 3@/ 48@ $ 58@ 3@ $ 36/ 58@ $ 67@ 36 $ 42/ 67@ $ 8@@ 42 $ 5@/ 8@@ $ 13@@ 5@ $ 8@/ 13@@ $ 1!@@ 8@ $ 12@/
@.1 1@/ @.3 4@/ @.6 8@/ @.8 12@/ 1.1 16@/ 2.2 32@/ 3.4 5@@/
C0$*)- s& 0%(#(:$* $%&'($#&s *- &s%$*)$'(:$)-s, #-s &#&&*%-s )&# $*+- )&&* s&' '-$)-s $'$ +-*('$' #$s '&)(++(-*&s %&?'(+$s.
L$ '-(&)$) 0&$s $'$ $#(+$+(-*&s &s&+(+$s. &. — PROPORCIÓN E# '--'+(-*$(&*%- )& #$ &:+#$ )& MRBC;BD, *-'$#&*%& +-(&*:$ +-* #$ )&%&'(*$+(?* &* s&+-H #$ )&*s()$) *($, '&s(s%&*+($ $ #$ +-'&s(?*. D&*%'- )& &s%-s $'<&%'-s, #-s +--*&*%&s )& #$ &:+#$ &s%<* )(s&$)-s s-'& 0*$ $s& '$+(-*$#. L-s MRBC;BD 0& s& $s$ &* #$s '-(&)$)&s s(+$s )&s&$)$s )&*s()$), '&s(s%&*+($ $ #$ +-'&s(?*, &%+./ )&# $%&'($# )&# #0$'. &." — CONSTRUCCIÓN &.".1 — SECUENCIA L$ s&+0&*+($ 0%(#(:$)$ )& =-'(?* s& 0s$ %$(* $'$ '-)0+(' &:+#$s )& MRBC;BD, %-)- +-(&*:$ +-* #$ &)(+(?* )&# $0$ *&+&s$'($ &* 0*$ &:+#$)-'$ &+<*(+$. L$ )-s(s )& +&&*%- -'%#$*), #$s +&*(:$s -#$*%&s - $'&$)-s s( s& 0%(#(:$/, s& &s$* (*)(()0$#&*%& $*%&s )& (*%'-)0+('#-s &* )&?s(%- )& &:+#$s. D&s0s s& &:+#$* #-s +--*&*%&s =$s%$ #-'$' 0*$ +-*s(s%&*+($ 0*(-'&, s& $$)& #$ +$*%()$) '&>0&'()$ )& '&-'$)-s )& &s0$, L$ &s0$ )& '&-'$)-s s& ()& &* #$ &:+#$ $ %'$s )& #$ ->0(##$ +$#('$)$ - )& '&##&*- +-* #$ &)()$ )& 0* %0- )& &*s$- )& -#0&* +-*-+()-. L$ '&+(s(?* )&#
)(s-s(%(- )& &*&'$+(?* )& &s0$ &# $$'$%- )& =-'(?* &s &s&*+($# $'$ s$&' #$ )&*s()$) )& #$ &:+#$ (*$# $'$ s0 -s%&'(-' '&'-)0++(?*. &.".2 — LA ME$CLA T-)-s #-s MRBC;BD &s%<* +-0&s%-s )& $%&'($#&s &+<*(+$&*%& )& +-*s(s%&*+($ 0*(-'& $*%&s )& #$ $)(+(?* )& #$ &s0$ '&-'$)$. P$'$ +-(*$' #$ &:+#$ )& (*'&)(&*%&s (*+#0()$ #$ &s0$/ s0(+(&*%& $++(?* )& &:+#$)- &#-+()$) s-* '&>0&'()-s. C0$*)- s& '-)0+& MRBC;BD )& +&&*% 0'- - )& +&&*%-+&*(:$s -#$*%&s, >0& *&+&s(%$* 0* &:+#$)- (-'-s-, s-* '&&'(#&s #-s &>0(-s )& $#%$ &#-+()$) )& &:+#$)-. L-s C$(-*&s &:+#$* <+(#&*%& &# MRBC;BD '--'+(-*$* #$ +-=&'&*+($ *&+&s$'($ $'$ #$ $)(+(?* )& &s0$ '&-'$)$. C0$*)- s& 0%(#(:$ &# +$(?* +-*+'&%&'- $'$ '-)0+(' #$ $s%$ )& +&&*%- 0'- )& +&&*%-C&*(:$s -#$*%&s, $ &+&s s&'< *&+&s$'(- -*&' 0* &+&)&*%& )& &s%-s $%&'($#&s. O%'-s '-+&s-s )& &:+#$, +-- #$ &)(+(?* )&# -#0&*, '-)0+&* &:+#$s 0*(-'&s &* +-*s&+0&*+($ %$(* s-* $+&%$#&s. E# $'(+$*%& )&# $&*%& &s0$*%& >0& s& 0%(#(:$'< )&& s&' +-*s0#%$)- s-'& #$s '&+-&*)$+(-*&s &s&+(+$s s-'& #-s '-+&)((&*%-s )& &:+#$ #$ $'-$+(?* )&# &>0(- )& &:+#$. &.".3 — COLOCACIÓN E# MRBC;BD 0&)& s&' +-#-+$)- )& +$*$#&s, +0&%$s - $$s. E# %-)- )& +-#-+$+(?* *- )&& '--+$' 0* +$(- &* #$ )&*s()$) - ')()$ )&# +-*+'&%- )& $('& 0& *- '--'+(-*$* 0#s$+(-*&s &# #0- &s +-*s%$*%&, '&)0+(&*)- $# *(- #$s ')()$s )& -#0&* )& $('& &*%'& &#
