Rice husk ash (RHA) plays two roles in concrete constructions. The first role is using rice husk as a substitute for Portland cement which leads to the reduction of the cost of concrete, and the other role is as an ...
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Green Cement: Definition, Types, Advantages, and Applications
Green cement is an environmentally friendly product that minimizes carbon footprint of cement production. Many attempts have been made to produce green cements and several green cement types have been produced. The majority of these are based on technological advances ...
Test for Setting Times of Concrete Mixture Based on ASTM C403M-16
The penetration resistance test used for the determination of initial and final setting time of concrete mixture in laboratory and project site, and the effects of variables, such as water content; type and amount of cementitious material; or admixtures, upon ...
Grades of Ordinary Portland Cement Based on IS Codes
Ordinary Portland Cement(OPC) is the most widely used cement in the construction world. It is the basic ingredient for producing concrete, mortar, stucco, and non-specialty grouts. Ordinary Portland Cement is graded based on its strength. The grade indicates the compressive ...
Dry Pack Mortar- Applications and Advantages
Dry pack mortar, which is also called deck mud or floor mud, is a mixture of sand, cement, and water. It is used to repair small spots, creating thick bed mortar for tile and brick placement, and bed shower installation. ...
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 ...
Fly Ash – Properties, Types, Mechanism and Uses
Fly ash is a heterogeneous by-product material produced in the combustion process of coal used in power stations. It is a fine grey coloured powder having spherical glassy particles that rise with the flue gases. As fly ash contains pozzolanic ...
Retarders for Concrete – Mechanism, Types and Effects on Properties
Retarders for concrete are used to delay the initial setting time of the concrete upto an hour. They are generally used in the hot weather condition to counter the rapid hardening due to high temperature, thus allowing the time for ...