Performance of concrete with the incorporation of waste from the process of stoning and polishing of glass as partial replacement of cement

Abstract

The incorporation of waste glass as a partial replacement for cement in concrete can provide an alternative destination for the waste, reduce the consumption of cement (minimizing CO2 emissions and consumption of natural resources), and improve the concrete performance. Thus, this research evaluated the performance of concrete incorporating waste glass sludge (GS), resulting from the process of stoning and polishing of soda-lime flat glass, as a supplementary cementing material. Mechanical strength and durability properties were assessed through compressive strength, alkali-silica reactivity, electrical resistivity and chloride permeability, diffusivity and migration tests. Mixtures containing metakaolin (ME) were also evaluated. The results indicated that the use of the waste ground to an adequate size can replace up to 20% of cement. At this content, it caused a reduction of chloride penetration of over 80%, reduced ASR and conserved compressive strength. The combination of waste with metakaolin replacing 20% of cement also improved all the concrete properties, increasing the compressive strength up to 12% at 28 days.

The Effect of a Complex Pozzolanic Additive Consisting of Milled Glass and Metakaolin on the Degradation of a Cementitious Composite With Ground Waste Glass Caused by Alkali-Silica Reaction

“…The increase in the consumption of natural resources and energy correlates with population growth. The increasing growth and consumption raise concerns about the exhaustion of natural resources, waste generation and the emission of harmful gases into the environment [2][3][4][5]. The demand for alternative aggregates in cementitious composites in the construction industry is increasing day by day, the use of river sand as fine aggregate is leading to the depletion of natural resources and the drop in groundwater levels.…”