Grade of concrete is defined as the minimum strength the concrete must possess after 28 days of construction with proper quality control. Grade of concrete is denoted by prefixing M to the desired strength in MPa. For example, for a ...
1. Plastic shrinkage concrete cracks Plastic shrinkage occurs in a freshly mixed concrete, with loss of water by evaporation from its surface, after placing and before hardening of the concrete. This can lead to plastic shrinkage cracking if the rate ...
There are different types of concrete, properties and uses of different types of concrete are explained briefly: 1. Normal Strength Concrete The concrete that is obtained by mixing the basic ingredients cement, water and aggregate will give us normal strength ...
Concrete is a building material made from a mixture of cement, water, sand and gravel. Performance of concrete is evaluated from mechanical properties which include shrinkage and creep, strength and modulus of elasticity. To design concrete one should have deep ...
Concrete is an important building material used for construction works. It is mainly used in heavy constructions because of its strength and durability. No matter how carefully the concrete is mixed , eventually ends up in cracking at some points. ...
Zist Yar Varena Company(Private Joint Stock Company) was established in 2014 and has started its activity in the field of production, research and development of modern concrete admixtures in the civil industry and It intends to take steps to improve the quality of concrete and move towards sustainable development by cooperating with the national and international researches and academic centers by using the latest technologies in the world.
