Proposal for Foamed Cement Banking Using Waste Glass Cullet

Abstract

In this study, to promote the use of cullet in construction and improve the quality and stability of foamed cement banking (FCB), we proposed using green waste glass cullet (green GC) in GC-FCB, tested its formulation, observed the internal structures of FCB samples using microfocus X-ray computed tomography, and conducted an alkali-silica reactivity (ASR) test. (In this study, the test measured changes in the length of air mortar bar for each material age.) The results confirmed the following. 1) Green GC with a fineness modulus of 1.7-2.6 is most suitable for FCB, and FCB that uses green GC is anticipated to be stronger than FCB that uses natural sand. 2) The internal part of the proposed GC-FCB specimen has a relatively uniform distribution of green GC with consistent diameter. 3) Even if green GC with high silica content is used for FCB, the risk of ASR degradation is low.