Civil

Grading of Aggregate : The strength of aggregate depends upon grading of aggregates. The grading of particles are being carried...

Deleterious substances can be classified into the following three categories. (1) Impurities which interfere with the process of hydration of...

Following procedure is adopted for finding the specific gravity of aggregates. (a) About 2 kg aggregate sample is taken. (b)...

Use of F.M. values in design process : The proportioning of two or more aggregates is essential so that specific...

The Bureau of Indian Standards has graded the ordinary Portland cement into three grades, namely, 33 grade, 43 grade and...

The fineness of cement has an important bearing on the rate of hydration and hence on the rate of gain...

The reaction of cement with water is exothermic. The reaction liberates a considerable quantity of  heat This can be easily...

*It is very important that cement after setting shall not undergo any appreciable change of volume. The determination of Soundness...

The compressive strength of hardened cement is the most important of all the properties. Take 555 gms of standard sand...

*Setting time of cement is defined as when the cement paste has lost its plasticity and becomes sufficient rigid to...