Civil

Special problems are faced in making, placing and concrete in hot weather. Concrete placed at an compacting atmospheric temperature above...

Water cement ratio is the main factor which influences the workability of concrete. More the water content resulting in better...

Organic impurities clay and other fine material :- This test is an approximate method for estimating whether organic compounds are...

Impact value test :- The aggregate impact value gives relative measure of the resistance of an aggregate to sudden shock...

Bulking of sand - The increase in volume of sand due to presence of surface moisture up to certain extent...

1) Specific Gravity:- Following procedure is adopted for finding the specific gravity of aggregates.  (a) About 2 kg aggregate sample...

Curing : Fresh concrete gains strength most rapidly during the first few days due to hydration of cement which can...

Placement : 1.Placing of concrete is the process of transferring the fresh concrete from the conveying device to its final...

1)Both igneous rocks and sedimentary rocks may be subjected to high temperature and pressure which )causes metamorphism which changes the...

 Surface index Periodontal index used to measure the presence of calculus (supra- and subgingival) on the four mandibular incisors. 1)The...