The word “cement” itself is a general word means “a glue” while “portland cement” is a more specific type of glue that is used in the civil engineering construction. The most important feature of the portland
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Before stating the types of concrete admixtures, let us start first by the definition of “Admixtures”. According to ACI Committee 116, an admixture is ‘a material other than water, aggregates, hydraulic cement, and fiber reinforcement, used
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Bleeding is the development of a layer of water at the top or surface of freshly placed concrete. The cause of bleeding is the settlement of solid particles (such as cement and aggregates) and the simultaneous
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The term “workability of concrete” refers to the ease with which freshly mixed concrete is placed, consolidated and finished without segregation. According to the ASTM, workability is defined as “the property that determine the effort required to
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Concrete is the result of mixing cement, water and aggregates (fine and coarse). Cement reacts with water and constitutes the paste (glue) which covers and binds the aggregates. One of the properties of concrete that of
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It was estimated that the production of cement which is used for concrete industry increased from about 1.5 billion tons in 1995 to 2.2 billion tons in 2010. The problem is that cement industry is
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