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Article: Study the surface color of sewage sludge mortar at high temperature.
- Article from:
- Construction and Building Materials
- Article date:
- January 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
In this study, with the help of digital image analysis method, the surface color changes of sludge ash mortar specimens at various elevated temperatures are studied. Moreover, the influences of temperatures on surface color changes of mortars are investigated. Selected portions of cement are replaced by three different amounts of sewage sludge ash and six varied temperatures are then assigned. Results indicate that the addition of sludge ash in the mortar has significant influence on the surface color changes. Intensities of red, green, and blue are reduced with the ash additives. Our study also shows that the grayscale of sand could be one of the ...