Concrete Mixtures

May 4th, 2015
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Name several admixtures that are used in concrete mixes. What is the purpose of each? Air-entraining admixtures are used to increase concrete’s resistance to freezing (relieves the pressure in concrete) and thawing (results to less cracking) and provide better resistance to the deteriorating action of de-icing salts.

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Concrete MixturesCE 4201 (Reinforced Concrete)BSCE-4November 14, 2012Assignment #1: Chapter 1(Introduction)1. Name several admixtures that are used in concrete mixes. What is the purpose of each? Air-entraining admixtures are used to increase concretes resistance to freezing (relieves the pressure in concrete) and thawing (results to less cracking) and provide better resistance to the deteriorating action of de-icing salts. Accelerating admixtures are used to reduce curing time and protect the concrete and the earlier removal of forms. Retarding admixtures are used to slow the sett

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