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ASTM D6103-04 Flow Consistency of Controlled Low Strength Material CLSMFull description
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Through an email conversation between Allen, Forst and Haugaard, this article explores the relationship between the dyads power and reason, justice and domination. In much of the literature reason ...
industrial engineering
CON SIST ISTE EN CY AN D W ORKAB ORKABILITY ILITY
HC37.70
HC37.60
Ke l ly ly Ba llll Pe n et et r a t io io n ASTM C-360
HC37.65
Slump Sl ump Test Apparat us IS : 732 0-19 74 Used for determination Used determination of slump of fre fressh concrete mix as a m easure of its consistency consistency where the nominal size size of aggre aggregate gate does not exceed 38 mm. It comprises the follow ing :i)
ii)
A slump slump co cone ne 100 mm dia dia at at the the top, 200 mm dia at the bottom, and 300 mm high w ith two cleats cleats and lifti lifting ng handles. A bas basee platew ith cl clampingarrangem ampingarrangement ent for the slump cone and a swivel handle w hich also also serves serves as the datum for measuring the slump.
iiiii)i) A tamping rod 1.6 1.6 cm dia and 60 cm cm long w ith one end rounded and graduated from 0 to 15 cm in 0.5 cm spacspacing to m eas easure ure the slump.
Vee-Bee Cons Vee-Bee Consis istom tom eter IS : 10510 -1983 Used for estimation of consistency of concrete mix by deter determination mination of the time requi require redd for transforming sample of fresh concrete in the form o f a frustum of a cone into a cylinder cylinder by standard vibration.
Used for estimation of w orkabil Used orkability ity of portland cement concrete concrete in t erms of depth of p e ne n e trtr at at io io n o f a h em em i sp sp h er er ic ica l m e ta ta l weight into the plastic concrete. Double of Kelly Ball reading indicates approximately the slump o f the concrete tested. tested. The apparatus apparatus consists consists of th e follow ing :i)
A hemispher hemispheric icall allyy shape shapedd m ilildd steel steel weight of approximately 14 kg with graduated handle.
ii)
A stirr stirrup up frame frame which guides guides the hemispherical hemispheric al w eight and also serves serves as datum for m eas easuring uring penetration of the ball.
The apparatus consis consists ts of t he follow ing: i)
A sl sl um um p co co n e 1 0 0 m m i n sisi de de d ia ia a t top, 200 m m ins inside ide dia at bas basee and 300 mm high high..
ii)
One contai container ner for the sl slump ump cone with two clamps and lifting handles.
A p pa pa r at at u s
iiiii)i) A vibrati vibrating ng table mounted mounted on rubber rubber shock absorbers and having a swivel arm attached on one side. The swivel arm carries a funnel o n on e side and a graduated rod with a perspex disc on the oth er side. side. Th Thee rod is graduated in centimeters to measure the slump and volume in the cy cylinde linderr after vibration vibration Suitable for operation on 44 0 V,50 Hz, 3 phase supply.
HC37.70
HC37.60 ACCESSORIES :
HC37.60.01 Tamping Rod. HC37.60.02 Cone only.
HC37.65
HC37.75
ACCESSORIES :
Compaction Factor Apparatus IS:5515-1983
HC37.75.01 Tamping Rod.
HC37.85
M ortar Penetrometer IS : 8142 -1976
HC37.75.02 M etal Scoop. Used for determination of compaction factor of fresh concrete with nominal maximum size of aggregate not exceeding 40 mm as a measure of its workability. It is particularly suitable for mix of stiffer consistency. It comprises the following : i)
Two conical hoppers with trap doors.
ii)
One cylindrical receiver 0.005 cu. m. volume.
iii) A welded steel stand for mounting the hoppers and the receiver co-axially at specified distan ces. iv)
Two trowels.
v)
One hand scoop.
vi) One standard tamping rod 16 mm dia x 600 mm long.
HC37.75.03 Lid for cylinder. HC37.80
Pocket Concrete Penetrometer It is a versatile quick and handy instrument for evaluation of 'Initial Set' of concrete mortar both in the laboratory as well as in the field. The instrument consists of a barrel and sleeve enclosing a calibrated spring. The barrel is graduated from 0 to 5 0 kg/sq cm and carries a friction ring which acts as a cursor. The penet ration n eedle of 0.3 sq. cm sectionalarea, is an integralpart of the barrel and is marked at 25 mm from the end.
It is used for determination of rate of hardening of mortar sieved from concrete mixtures and estimation of the effects of such variables like temp erature, cement content, mix proportion and admixtures etc on the setting tim e and hardening characteristics of concrete. The equipm entcom prisesthe follo w ing: i)
A barrel enclosing a calibra ted spring and a plunger with a stem graduated from 0-6 0 kgf in 1 kgf divisio n. A handl e is fixed to the stem at the top.
ii)
Two needle shanks marked at 1.25 cm intervals.
iii) Sixn eedlepoint swith crosssectional areas 645, 323, 161, 65, 32 and 16sq.mm.
In operation the plunger is pushed into the concrete mortar upto the m arked line and the penetration resistance offered by the concrete m ortar is directly indicated on t he barrel in kg/sq.cm. The 'INITIAL SET" is considered to have been reached w hen the penetration resistance offered by th e mo rtar is 35 kg/sq.cm. Supplied complete in a carrying case.
HC37.85
HC37.80
HC37.75
HC37.90
HC37.95
Standard Cone Apparat usIS:2250-1 981
Water Retention Apparatus IS : 22501981, IS : 1085 0-1984
Used for the determination of consistency of m asonry mortar. It consists of t he following:-
For the determinationof water retentivityof mortar.T he appa ratuscomp rises t he follo w ing:-
i)
i)
ii)
A st a nd a rd co n e 7 5 m m b a se d ia x 150 m m high with a bearing rod. Total weight 300 + 2 g. A conical container 150 mm dia at top and 180 mm deep.
iii) A platform for the container. iv) Penetration measuring apparatus comprising a base with an upright bearing rod carrying a vertically adjustable bracket.The bearing rod of t he Stand ard Co ne p asses t hro u gh t h e l ow e r bracket arm which houses a clamping and release mechanism. The upper bracket arm carriesa dial, g raduat ed to read 1/10 th of a mm and a rack and pinion arrangement w ith a p ointer. v)
One perforated dish, brass.
ii) One brass funnel with rubber gasket. iii) One liter flask w ith a three way stop cock and a rubber bung. iv) A manometer made of Perspex. v)
A p re ssu re c on t ro l d e vi ce m a d e o f Perspex.
v i)
A w o o den st an d f or m o un t in g t h e apparatus assembly.
vii) An aspirator bottle with rubber tubing for vacuum.
HC37.100
Water Retention Apparatus IS : 2250-19 81, IS : 10850 -1984 Same as HC37.95 except that it has a vacuum regulator and a vacuum gauge for the m easurement of vacuum. The system is supplied complete with vacuum pump.
HC37.595
Water Retention Apparatus IS : 22501981, IS : 1085 0-1984 Same as HC37.100 except that the it has an electronic sensor for the measurement of vacuum. The system is comp lete w ith readou t unit and vacuum pum p.
