Rapid hardening cement is a special type of cement that achieves high strength in less time. Normally the strength achieved by conventional cements in 7 days is same as the strength achieved in 3 days. This type of cement is also ...
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CHEMICAL AND PHYSICAL REQUIREMENT OF CEMENT
Cement is defined as the product manufactured by burning and crushing to powder an intimate and well-proportioned mixture of calcareous and argillaceous materials. The cement, which is generally used for preparing concrete, is the Ordinary Portland Cement. But for special ...
DYNAMIC PROBE TEST FOR SOIL
Dynamic probe test is done to determine the penetration resistance of soil. Apparatus required for dynamic probe test of soil are: (a) Dynamic Probe: The anvils shall be rigidly fixed to the guide rod; the lower anvil shall also be ...
Elongation Index Test on Coarse Aggreagtes
Elongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and four-fifth times (1.8 times or 9/5 times) their mean dimension. It is measured on particles passing through mesh size ...
BEHAVIOUR OF CONCRETE UNDER TENSION
Concrete is not normally designed to resist direct tension. However, tensile stresses develops in concrete members as a result of flexure, shrinkage and temperature changes. Principal tensile stresses may also result from multi-axial states of stress. Normally cracking in concrete ...
TESTS ON WATER FOR CONCRETE
TESTS ON WATER FOR CONCRETE A simple way of determining the suitability of water for mixing is to compare the setting time of cement and the strength of mortar cubes using the water in question with the corresponding results obtained ...
Determination of Bulk Density of Concrete as per IS-1199
Bulk density of concrete is the mass of freshly mixed concrete required to fill the container of a unit volume. Bulk density of concrete reflects the ability of concrete to function for structural support, water and solute movement, and durability. This method helps ...
U Box Test on Self Compacting Concrete for Filling Ability of Concrete
U Box Test Method for Self Compacting Concrete U box test was developed by the Technology Research Centre of the Taisei Corporation in Japan. Some time the apparatus is called a “box shaped” test. U Box test is used to ...