Extrusion of cementitious material with different curing rates

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United States of America Patent

PATENT NO 8308470
APP PUB NO 20110076350A1
SERIAL NO

12952916

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Abstract

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A cementitious material delivery system comprising may include a flow divider, a first and second chemical agent, a first and second mixer, and a nozzle. The flow divider may be configured to divide a flow of cementitious material into a first stream and a second stream that is separate from the first stream. The first chemical agent may cure the cementitious material at a first rate when mixed with the cementitious material. A first mixer may be configured to mix the first chemical agent with the first steam of cementitious material to produce a first mixed stream of cementitious material. A second chemical agent may be configured to cure the cementitious material at a second rate when mixed with the cementitious material which is faster than the first rate. A second mixer separate may be configured to mix the second chemical agent with the second steam of cementitious material to produce a second mixed stream of cementitious material. A nozzle may be configured to extrude the first mixed stream of cementitious material and the second mixed stream of cementitious material separate from the first mixed stream of cementitious material.

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Patent Owner(s)

  • UNIVERSITY OF SOUTHERN CALIFORNIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Khoshnevis, Behrokh Marina del Rey, US 61 1683

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