| Patent Number |
Title Of Patent |
Date Issued |
| 8236098 |
Settable building material composition including landfill leachate |
August 7, 2012 |
| A composition capable of setting to produce a building material is disclosed. The composition can include from 1% to 30% by weight of an activator, from 1% to 55% by weight of a pozzolan, such as fly ash; from 40% to 90% by weight of an aggregate; and liquid landfill leachate in a su |
| 8074804 |
Separation of cenospheres from fly ash |
December 13, 2011 |
| Methods for increasing the amount of cenospheres in a fly ash sample are disclosed. The cenospheres are obtained in a dry state by using air as the "fluid" media for separation. In one version, the invention is a two step process, that is, screen by size followed by density separation su |
| 7578881 |
Electrically conductive concrete and controlled low strength materials having spent carbon sorbe |
August 25, 2009 |
| Compositions are provided for increasing the electrical conductivity of concrete or controlled low-strength materials (flowable fill). One composition sets to produce a concrete and includes portland cement, water, aggregate, and particulate matter including a sorbent and a contamina |
| 7390444 |
Carbon dioxide sequestration in foamed controlled low strength materials |
June 24, 2008 |
| A process for sequestering carbon dioxide from the flue gas emitted from a combustion chamber is disclosed. In the process, a foam including a foaming agent and the flue gas is formed, and the foam is added to a mixture including a cementitious material (e.g., fly ash) and water to f |
| 7217401 |
Mercury removal from activated carbon and/or fly ash |
May 15, 2007 |
| A method for reducing the amount of mercury affixed to a sorbent and/or fly ash is disclosed. The method includes the steps of providing an amount of sorbent and/or fly ash wherein at least a portion of the amount of sorbent and/or fly ash has particulates having mercury compounds af |
| 6945179 |
Ammonia removal from fly ash |
September 20, 2005 |
| An apparatus for the application of heat to remove ammonia compounds from fly ash is disclosed. The apparatus includes a source of fly ash comprising particulates having ammonia compounds affixed to the fly ash particulates, a heating chamber including a treatment bed comprising a me |
| 6821336 |
Electrically conductive concrete and controlled low strength materials having carbon fibers |
November 23, 2004 |
| Compositions are provided for increasing the electrical conductivity of concrete or controlled low-strength materials (flowable fill). One composition sets to produce a concrete and includes from 1% to 30% by weight of portland cement; from 1% to 30% by weight of fly ash having a car |
| 6755901 |
Ammonia removal from fly ash |
June 29, 2004 |
| A method and apparatus for the application of beat to remove ammonia compounds from fly ask, thereby making the fly ash a marketable product is disclosed. The method includes the steps of providing an amount of fly ash wherein at least a portion of the amount of fly ash comprises particu |
| 6637354 |
Coal combustion products recovery process |
October 28, 2003 |
| A process for recovering the byproducts of a process that burns coal and for reusing the byproducts is disclosed. The process includes the steps of identifying a disposal site that contains the byproducts (typically flyash and bottom ash), removing at least a portion of the byproducts fr |
| 6461424 |
Electrically conductive concrete and controlled low-strength materials |
October 8, 2002 |
| Compositions for producing electrically conductive controlled low-strength material and electrically conductive concrete are provided, comprising conventional components, but utilizing a non-standard, high carbon content, fly ash. One settable controlled low-strength material composi |
| 5992336 |
Reburning of coal ash |
November 30, 1999 |
| Bottom ash and flyash having high LOI is reburned in a pulverized coal furnace. The bottom ash is added to the coal supply before the coal is pulverized. Flyash is added to the pulverized coal stream for injection with the pulverized coal or is separately injected into the furnace at or |
