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

BULK DENSITY OF BRICKS

How to check brick quality on site

Objective For determination of bulk density of bricks Equipment & Apparatus Oven (3000C) Scale Balance (0-10kg)  Procedure The brick is dried in a ventilated oven at a temperature of 1050 to 1150C till it attains substantially constant mass. The brick is then cooled to room temperature and its mass is recorded.(M) Then the dimensions of … Read more

COMPRESSIVE STRENGTH OF BRICK (IS:3495-Part 1-1992)

How to check brick quality on site

Objective For determination of compressive strength of bricks  Reference Standard IS: 3495 – P (1)-1992-Methods of tests of burnt clay building bricks (Determination of compressive strength) Equipment & Apparatus Compression Testing Machine Scale for measuring dimension of brick Procedure Unevenness observed in the bed faces of bricks is removed to provide two smooth and parallel … Read more

EFFLORESCENCE OF BRICKS (IS:3495-Part 3-1992)

Objective For determination of efflorescence of bricks  Reference Standards IS: 3495 – Part(3)-1992 Equipment & Apparatus Oven (3000c)  Procedure A shallow flat bottom dish containing sufficient distilled water to completely saturate the specimens is used for the test. The ends of the bricks are placed in the dish, the depth of immersion in water being … Read more

WATER ABSORPTION OF BRICK (IS:3495-Part 2-1992)

Objective For determination of water absorption of bricks  Reference Standards IS : 3495 (Part-2)-1992,RA 2011 Equipment & Apparatus Balance (0-10 kg)  Procedure The specimen is dried in a ventilated oven at a temperature of 105 to 1150C; till it attains substantially constant mass. The specimen is cooled to room temperature and its weight is recorded … Read more

SPECIFIC GRAVITY & WATER ABSORPTION OF AGGREGATE (IS:2386-Part 3-1963)

Objective For determination of specific gravity & water absorption of aggregates.  Reference Standards IS : 2386 (Part 3) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Wire basket Oven (3000c) Container for filling water and suspending the basket An air tight container Balance[0-10 kg] … Read more

ANGULARITY NUMBER OF COARSE AGGREGATE (IS:2386-Part 1-1963)

Objective For determination of angularity number of coarse aggregates.  Reference Standards IS: 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Balance (0-10kg) Sieves (20,16,12.5,10,6.3,4.75mm) Metal cylinder Tamping rod Scoop  Test Sample Preparation The test sample consist of aggregate retained between the … Read more

PARTICLE SIZE DISTRIBUTION OF AGGREGATES (IS:2386-Part 1-1963)

Objective For determination of particle size distribution of fine, coarse and all-in-aggregates by sieving.  Reference Standard IS : 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape.  Equipment & Apparatus Balance (0-10kg) Sieves Oven Test Sample Preparation The sample is prepared from the larger sample … Read more

MATERIALS FINERS THAN 75 MICRON (IS:2386-Part 1-1963)

Objective For determination of the quantity of material finer than 75 micron IS sieve in aggregates by washing.  Reference Standards IS : 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Balance (0-10 kg) Sieves (1.18 mm,75 micron) Oven (3000c) Container  Preparation … Read more

AGGREGATE FLAKINESS INDEX VALUE (IS:2386-Part 1-1963)

Thickness Gauge

Objective For determination of flakiness index of coarse aggregate, where the  size of the coarse aggregate are larger than 6.3mm .  Reference Standards IS : 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Thickness gauge Sieves [63, 50, 40, 31.5, 25, … Read more