Concrete mixtures having high flowability

  • US 7,621,995 B2
  • Filed: 12/19/2005
  • Issued: 11/24/2009
  • Est. Priority Date: 09/09/2005
  • Status: Expired due to Fees
First Claim
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1. A flowable concrete mixture, comprising:

  • (i) a hydraulic cement;

    (ii) an aggregate(iii) water;

    (iv) a foam admixture comprising a viscosity modifier, water, a surfactant, and a plurality of air bubbles, wherein the concentration of the viscosity modifier is higher in the foam admixture compared to the remainder of the flowable concrete mixture; and

    (v) a sufficient amount of water and/or a water reducer to give the concrete mixture a flow spread greater than 10 inches.

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