Concrete

mixing concrete
Mixing Concrete. The main object of mixing concrete (cement, sand, coarse aggregates and water) is to obtain a uniform and easily workable concrete paste.Properly calculated quantities of the concrete ingredients are thoroughly mixed to obtain concrete of desired quality.This mixing is done manually on water-tight platforms with the help of shovels.For...
grading of aggregates
Grading of Aggregates. Grading of aggregates is determining the average grain size of the aggregates before they are used in construction.This is applied to both coarse and fine aggregates. The aggregate sample is sieved through a set of sieves and weights retained on each sieve in percentage terms are summed...
setting-of-cement
The Setting of Cement. By setting of cement, it is understood that conversion of a plastic paste of cement and water to a non-plastic and rigid mass. This change from a plastic mass to a non-plastic mass may take any time between few minutes to an hour or more.The setting...
Curing of Concrete. Curing of concrete is the term used for the job of keeping the fresh concrete wet till the desired purpose is achieved.Cement concrete has to be kept wet for few days after its placing to ensure complete setting and hardening of cement. Objects of Curing of Concrete. It is...
advantages-of-reinforced-concrete
Reinforced cement concrete (R.C.C) is the combination of ordinary concrete with the reinforcement to increase its compressive and tensile strength to a great extent.Concrete is a versatile material for modern construction which is prepared by mixing together well-proportioned quantities of cement (even lime in some cases), sand, crushed rock...
properties-of-hardened-concrete
Workability and related properties of fresh concrete are essential for transport and laying. The properties which determine the quality of the hardened concrete broadly fall into the following three groups :Strength. Durability. Dimensional stability.Properties of Hardened Concrete: Characteristic strength, drying shrinkage, creep, modulus of elasticity, permeability and resistance to...
properties of fresh concrete
Properties of Fresh Concrete: Fresh Concrete can be easily molded into any designed shape in construction.  It can be prepared on the spot and may give a wide range of properties from easily available raw materials.We will discuss in details below the different properties of Fresh concrete.Workability. Setting. Segregation. ...
types-of-concrete
In concrete technology, a variety of type-names has been used for different types of concrete. This classification is based on three factors:>Type of material used in its making. >Nature of stress conditions. >And it's density.Different Types of Concrete.Plain or Ordinary Concrete. Lightweight Concrete. High Density Concrete. Reinforced...

Popular Posts