April
3
2017

Apart from cement, water and aggregates, chemical admixtures are another important ingredients of concrete that are used to improve concrete quality, manageability and acceleration or retardation of setting time. The properties that are commonly modified by using admixtures are the

March
31
2017

Concrete is produced by mixing binding materials and inert materials with water. Thus, water and its quality (and also its quantity) plays an important role in determining the quality of concrete. Strength and durability of concrete is to a large

March
14
2017

Loss of moisture by evaporation causes volumetric changes of concrete structures which is known as concrete shrinkage or shrinkage of concrete. It is kind of deformation which reduces the volume of concrete without the impact of external forces. Concrete shrinkage

March
9
2017

Roller-compacted concrete (RCC) contains the same ingredients as conventional concrete though ratio of ingredients differs. Like any other concrete RCC is a mix of cement/fly ash, water, sand, aggregate and common additives, but contains much less water. But unlike conventional

March
8
2017

Asphalt concrete is a composite material commonly used to surface roads, parking lots, airports, as well as the core of embankment dams. It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. Asphalt concrete is preferred