Patents Assigned to Ecologic Tech Company, Inc.
  • Method to produce durable non-vitrified fly ash bricks and blocks
    Patent number: 7998268
    Abstract: A method of making durable, non-vitrified masonry units comprising fly ash, the method comprising mixing fly ash comprising a minimum of 15% CaO by weight and no more than about 10% loss on ignition, water, and an air entrainment agent to form a fly ash mixture; compacting the fly ash mixture in a shaping device by applying pressure of at least 1000 psi to the fly ash mixture; and curing the compacted fly ash mixture to cause the mixture to harden and gain strength.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: August 16, 2011
    Assignee: Ecologic Tech Company, Inc.
    Inventor: Henry Liu