Method and apparatus for making asphalt concrete using foamed asphalt cement

A foamed asphalt cement nozzle assembly is adapted for use in connection with a mixer for mixing aggregate materials and asphalt cement to make asphalt concrete. The foamed asphalt cement nozzle assembly includes a foamed cement mixing chamber, a first inlet for liquid asphalt cement and a second in...

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Hauptverfasser: RENEGAR, GREG, VARNER, MIKE, BROCK, DONALD J
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Sprache:eng
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creator RENEGAR, GREG
VARNER, MIKE
BROCK, DONALD J
description A foamed asphalt cement nozzle assembly is adapted for use in connection with a mixer for mixing aggregate materials and asphalt cement to make asphalt concrete. The foamed asphalt cement nozzle assembly includes a foamed cement mixing chamber, a first inlet for liquid asphalt cement and a second inlet for water, each of which is in fluid communication with the foamed cement mixing chamber. An outlet for foamed asphalt cement is also provided, which outlet is in fluid communication with both the foamed cement mixing chamber and the mixer. The invention also comprises a method for making asphalt concrete using foamed asphalt cement. The method includes introducing aggregate materials into the mixer and heating the aggregate materials to a temperature at least as high as the boiling point of water but no higher than about 285 deg.F.
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subjects PERFORMING OPERATIONS
PREPARING CLAY
PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER
TRANSPORTING
WORKING CEMENT, CLAY, OR STONE
title Method and apparatus for making asphalt concrete using foamed asphalt cement
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