Everything Related to Civil Engineering.
What is Concrete What is Concrete ? Concrete is the mixture of cement, coarse aggregate, fine aggregate and water in specific proportions. Concrete is relatively a brittle material —– its tensile strength is very small as compared with its compressive Continue reading What is Concrete
Properties of Stone Aggregates Sand, gravel and crushed stone fall into this category and make up a large percentage of the aggregates used in concrete. Since they generally constitute from 60 to 80 percent of the volume of concrete, their Continue reading Properties of Stone Aggregates
Impurities in Sand • Impurities are always undesirable in sands. They reduce the strength of concrete and mortar. Since it is impossible to have sand without impurities. Therefore maximum 6% impurities are permissible. • Clay, silt, salts, mica and organic Continue reading Impurities in Sand
AGGREGATES Types Classification AGGREGATES Aggregates are the inert materials mixed with binding material like cement, lime or mud in the preparation of mortar or concrete. NECESSITY OF AGGREGATES To avoid cracking, shrinkage and to improve work-ability. To reduce the cost Continue reading AGGREGATES Types Classification