Fire resistance of concrete is the ability of concrete to withstand fire or to give protection against fire. This involves the ability of concrete structural element to continue perform a specific structural function or confine fire or both. The duration ...
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What is Poisson’s Ratio of concrete?
Poisson’s ratio of concrete is the ratio of transverse strain to longitudinal strain in concrete specimen subjected to axial loads. The longitudinal strain and vertical strain are produced due to concrete volume reduction under compression load. Volume reduction of concrete specimen ...
What is Reinforced Concrete? Uses, Benefits, and advantages
Reinforced concrete is a combination of traditional cement concrete with reinforcements (steel bar). This combination is made to use the compressive strength of concrete and tensile strength of steel at the same time, hence, work together to resist many types of ...
Modulus of Elasticity of Concrete- Determination and Importance in Design
Modulus of elasticity of concrete(Ec) is defined as the ratio of the applied stress to the corresponding strain. Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. In other ...
Concrete Sweating – Phenomenon, Causes and Prevention
Concrete sweating is the phenomena of accumulation of water droplets on the surface of concrete due to the difference in temperature of the outer environment and concrete. A sweating concrete floor can be a real nuisance that can create a ...
Microsilica in Concrete – Types, Properties, and Practical Applications
Microsilica in concrete improves its strength and durability as it provides more uniform distribution and a greater volume of hydration products, and decreases the average size of pores in the cement paste. Microsilica, also known as silica fume or condensed ...
What is R-value and U-value of Concrete Slab per inch, Calculation
What is R-value and U-value of Concrete Slab R-value is the measurement of concrete slab (or other material) capacity to resist heat flow i.e. it measures the effectiveness of insulation or thermal resistance. However, U-value is the measurement of heat ...
Role of Calcium Chloride in Concrete
Calcium chlorides is used as accelerator in hydration process of cement, leading to quick set of concrete and to get high initial strength concrete. Maximum permissible limit of addition of calcium chloride is 2% in flake form. Methods of Adding ...