Computers and Concrete

Volume 17, Number 2, 2016, pages 255-269

DOI: 10.12989/cac.2016.17.2.255

Pozzolanic reaction of the waste glass sludge incorporating precipitation additives

Ilhwan You , Jisun Choi , David A. Lange , Goangseup Zi

Abstract

The waste glass sludge is a waste produced in the glass industry. It is in a dust form and disposed with water. In the disposal process, various cohesive agents are incorporated in order to precipitate the glass particles efficiently. In this paper, we investigate the pozzolanic reaction of the waste glass sludge incorporating precipitation additives experimentally. The consumption of calcium hydroxide, the setting time and the compressive strength and the pore structure were tested for two different types of the waste glass sludge depending on whether precipitation additives were used. It was found that the waste glass sludge incorporating the precipitation additives had a higher pozzolanic potential than the reference waste glass sludge without precipitation additives.

Key Words

waste glass sludge; precipitation additives; cohesive agent; coagulant aid; caustic soda; alkali activation; pozzolanic reaction

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