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Why are air-entraining admixtures now being used in Controlled Low Strength Material (CLSM)?

April 26, 2017admixtures air-entraining controlled low material strength Used

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Why are air-entraining admixtures now being used in Controlled Low Strength Material (CLSM)?

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The inclusion of 15-35% entrained air in CLSM improves flowability, minimizes segregation and settlement, lowers unit weight (90-110 pcf), and controls ultimate strength development. In addition, air, gas and water permeability properties will improve as CLSM air contents increase.