Patents Assigned to MACAEL, INC.
  • Radial coal ash based micro-architectures and method of synthesis
    Patent number: 9115024
    Abstract: Microparticles having crystalline needle or rod-shaped structures of, for example, an ettringite mineral grown and attached radially from their surface. A method including nucleating and growing crystalline needles/rods from the surface of a particle in the presence of a solution of calcium, sulfur, and aluminum such as calcium sulfoaluminate, lime and calcium sulfate is described. One example is the radial growth of ettringite needles on the surface of fly ash particles in calcium sulfoaluminate-based cement paste and concrete.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: August 25, 2015
    Assignee: Macael, Inc.
    Inventors: Eric P. Bescher, Jacob W. Stremfel, Grant M. Kao, John T. Salkowski, Walter J. Hoyle, John Kenneth Vallens, Edward K. Rice
  • Radial Coal Ash Based Micro-Architectures and Method of Synthesis
    Publication number: 20130220181
    Abstract: Microparticles having crystalline needle or rod-shaped structures of, for example, an ettringite mineral grown and attached radially from their surface. A method including nucleating and growing crystalline needles/rods from the surface of a particle in the presence of a solution of calcium, sulfur, and aluminum such as calcium sulfoaluminate, lime and calcium sulfate is described. One example is the radial growth of ettringite needles on the surface of fly ash particles in calcium sulfoaluminate-based cement paste and concrete.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: MACAEL, INC.
    Inventors: Eric P. Bescher, Jacob W. Stremfel, Grant M. Kao, John T. Salkowski, Walter J. Hoyle, John Kenneth Vallens, Edward K. Rice