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Lime concrete is a composite mixture of lime as binding material, sand as fine aggregate, and gravel as coarse aggregate in appropriate proportions. Lime concrete mix ratio depends on the type of construction, but in general, it can be taken ...
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Shrinkage Reducing Concrete Admixture: Mechanism, and Applications
Shrinkage-reducing concrete admixture promote expansion of the concrete at about the same volume that normal drying shrinkage is contracting it. The net change in length of the hardened concrete is small enough to prevent shrinkage cracks. Shrinkage reducing concrete mixture ...
Water-reducing Set-retarding Admixtures: Affects, and Applications
Water-reducing and set-retarding admixtures are chemicals that slow down the initial reaction between cement and water by reducing the rate of water penetration to the cement and slowing down the growth of the hydration products. As a result, concrete stays ...
Corrosion Inhibiting Admixtures: Types, Dosages, and Applications
Corrosion inhibitors are admixtures that either extend the time to corrosion initiation or significantly reduce the corrosion rate of embedded metal, or both, in concrete containing chlorides in excess of the accepted corrosion threshold value for the metal in untreated ...
Functions of Admixtures in Fresh and Hardened State of Concrete
admixtures (singular or combination of admixtures) are added to concrete or mortar or grout mixture to achieve or improve desired properties in the fresh or hardened state. The admixtures are added to concrete based on their functions which they are ...
Factors Affecting Performance of Admixtures in Concrete
There are many factors that influence the performance of admixtures in concrete such as type of admixture, dosage, compatibility of the admixture with cement, mix design, ambient temperature, and the presence of other admixtures. These factors influence the degree of ...
High-Range Water Reducing Admixture for Concrete
High range water reducing admixture reduces the quantity of mixing water required to produce concrete of a given consistency by 12 % or greater, as per ASTM C 494- C 494M. It is capable of producing great water reduction, great ...
What is Cellular Concrete? Types and Materials
Cellular concrete is a special engineered concrete manufactured by mixing Portland cement, sand, fly ash, water and pre-formed foam in varied proportions to form a hardened material having an oven-dry density of 50 pounds per cubic foot (PCF) or less. As ...