WORKABILITY TEST OF CONCRETE BY VEE-BEE CONSISTOMETER METHOD (IS-1199-1956)

Vee-Bee Consistometer

Objective To determine the workability of freshly mixed concrete by using of Vee – Bee consistometer apparatus. Scope and Significance The workability of fresh concrete is a composite property, which includes the diverse requirements of stability, mobility, compactability, placeability and finishability. There are different methods for measuring the workability. Each of them measures only a … Read more

COMPRESSIVE STRENGTH TEST OF CONCRETE (IS:516-1959)

Compressive Strength Test on Concrete

Objective The tests are required to determine the strength of concrete and therefore its suitability for the job.  Reference Standards IS : 516-1959 – Methods of tests for strength of concrete. Equipment & Apparatus Compression testing machine (2000 KN) Curing tank/Accelerated curing tank Balance (0-10 Kg)   Procedure  Representative samples of concrete shall be taken and … Read more

ACCELERATED CURING TEST OF CONCRETE (IS:9013-1978)

Objective Normally, the strength of concrete is found out after 7 days and 28 days. For some construction activities, it may be too late and need to know the strength earlier.  Reference Standards IS: 9013-1978-Method of making, curing and determining compressive strength of accelerated cured concrete test specimen. Equipment & Apparatus Accelerated curing tank Compression Testing Machine … Read more

BLEEDING TEST OF CONCRETE (IS:9103-1199)

Objective For determination of relative quantity of mixing water that will bleed from a sample of freshly mixed concrete.  Reference Standard IS : 9103-1999 – Method of sampling and analysis of concrete. Equipment & Apparatus Cylindrical measure Tamping Bar Pipette Graduated Jar Procedure The container is filled with concrete up to a height of 250±3 … Read more

WORKABILITY OF CONCRETE USING FLOW TABLE TEST APPARATUS (IS:1199-1959)

Objective For determination of consistency of concrete where the nominal maximum size of aggregate does not exceed 38 mm using flow table apparatus.  Reference Standard IS : 1199 – 1959 – Method of sampling and analysis of concrete. Equipment & Apparatus Flow table    Procedure Before commencing test, the table top and inside of the mould … Read more

CONSISTENCY OF CONCRETE USING COMPACTING FACTOR TEST APPARATUS (IS:1199-1959)

Objective For determination of consistency of concrete where the nominal maximum size of aggregate does not exceed 38 mm using compacting factor test apparatus.  Reference Standards IS: 1199 – 1959 – Method of sampling and analysis of concrete. Equipment & Apparatus Compacting factor apparatus.    Procedure The sample of concrete to be tested is placed … Read more

WORKABILITY OF FRESH CONCRETE USING SLUMP CONE METHOS (IS:1199-1959)

Slump Cone Test Apparatus

Object For determination of consistency of concrete where the nominal maximum size of aggregate does not exceed 38 mm using slump test apparatus. Reference Standards IS : 1199 – 1959 – Method of sampling and analysis of concrete. Equipment & Apparatus Slump cone Tamping rod    Procedure The internal surface of the mould is thoroughly cleaned … Read more