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Low pH compositions for hardening concrete

  • US 8,999,056 B1
  • Filed: 10/07/2014
  • Issued: 04/07/2015
  • Est. Priority Date: 02/05/2008
  • Status: Active Grant
First Claim
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1. A composition for a hardening concrete, consisting of:

  • colloidal silica;

    a stabilizer selected from the group consisting of aluminum and alumina;

    surfactant; and

    water,the composition having a pH of less than 10 and formulated not to form a hard reside on a surface of the concrete.

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