Fly ash/mixed plastic aggregate and products made therefrom
AssigneeE3 Innovative Materials, LLC
InventorsRobert Malloy, Moshen G. Kashi, Christopher W. Swan
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Abstract
The present invention is directed at a synthetic lightweight aggregate composition comprising fly ash and a mixture of two or more polymer components. More specifically, the present invention is also directed at a lightweight concrete which cures to a hardened cementious composite comprising Portland cement, water in a weight ratio of between about 0.2 and 0.7 of the water to the Portland cement, synthetic lightweight aggregate in a weight ratio of between about 0.1 and 0.5 of the synthetic lightweight aggregate to the cement, wherein the synthetic lightweight aggregate comprises fly ash and two or more polymer components.
Claims24
A synthetic lightweight aggregate composition comprising:
- fly ash;
- and
- two or more polymer components melt blended with said fly ash, said two or more polymer components and said fly ash melt bonded together without the presence of a compatibilizing agent.
A synthetic lightweight aggregate comprising fly ash and the following polymer components:
- a thermoplastic polyester, polyethylene, polypropylene, and polystyrene and polystyrene graft copolymer, wherein said fly ash is melt bonded with said polymer components without the use of a compatiblizing agent.
A lightweight concrete which cures to a hardened cementious composite comprising:
- Portland cement;
- water in a weight ratio of between about 0.2 and 0.7 of the water to the Portland cement;
- synthetic lightweight aggregate in a weight ratio of between about 0.1 and 0.5 of the synthetic lightweight aggregate to Portland cement;
- wherein said synthetic lightweight aggregate comprises fly ash melt blended with said two or more polymer components, thereby melt bonding said fly ash to said polymers without the use of a compatibilizing agent.
An asphalt concrete composition for paving comprising:
- an asphalt binder;
- synthetic lightweight aggregate in a ratio of between about 0.1 and 0.9 of the asphalt/aggregate combination;
- wherein said synthetic lightweight aggregate comprises fly ash melt blended with a mixture of two or more polymer components, thereby binding said fly ash without the use of a compatiblizing agent.
A method of making a synthetic lightweight aggregate comprising:
- providing two or more polymeric materials;
- providing fly ash;
- melt blending said two or more polymeric materials and said fly ash, thereby at least partially melting said two or more polymeric materials and mixing said fly ash with said two or more polymeric materials and melt bonding said fly ash with said two or more polymeric materials without the use of compatiblizing agents;
- cooling said melt blended fly ash and polymeric materials;
- granulating said mixture of fly ash and polymeric materials.
Dependencies are inferred from the claim text.