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Initial Setting Time of Cement as per IS 4031, IS 269

Initial setting time of concrete is the time period between addition of water to cement till the time at 1 mm square section needle fails to penetrate the cement paste, placed in the Vicat’s mould 5mm to 7mm from the bottom ...

Determination of Standard Consistency of Cement

The standard consistency of cement is that consistency, which permit the vicat plunger to penetrate to a point 5 to 7mm from the bottom of the vicat mould when tested. Procedure to determine the quantity of water required to produce a ...

THE CHARPY IMPACT TEST

Objective: To test the resistance of the material towards an impact load Apparatus: Charpy Testing machine, a rod of mild steel and a rod of carbonate steel. Introduction: The Charpy impact ...

Penetration Value of Bitumen -Determination for Road Construction

Penetration value test on bitumen is a measure of hardness or consistency of bituminous material. A 80/100 grade bitumen indicates that its penetration value lies between 80 & 100.Penetration value is the vertical distance traversed or penetrated by the point of ...

Flakiness Index and Elongation Index Test on Coarse Aggregates

Shape tests on coarse aggregates such as flakiness index and elongation Index, its importance in concrete construction, methods of determination is discussed. Shape Tests on Coarse Aggregates: Following tests are conducted on coarse aggregates under shape tests:The elongation index of the ...