Effect of glass powder and silica fume on mechanical properties and on alkali-silica reaction of recycled glass mortars

Abstract

In order to value glass in the production of cement and concrete. We have verified the effect of the progressive substitution of 10% to 50% of the volume of cement by glass powder and silica fume on the mechanical properties of hardened mortars, we have also verified their inhibitory effect of the Alkali Silica Reaction (ASR) by studying the variation of mass, expansion, opening and density of cracks as well as the loss of mechanical performance of mortars undergoes a test that accelerates the ASR by autoclave. We have concluded that the use of these mineral admixtures can improve the mechanical performance of mortars, and it can reduce expansions and mechanical performance losses due to ASR.

Effects of Recycled Fine Glass Aggregates on Alkali Silica Reaction and Thermo-Mechanical Behavior of Modified Concrete

“…Alkali-silica reactivity (ASR) autoclaving test qualifies with certainty the no reactivity of different aggregates and it showed the best performance [38,43]. This test was carried out in this work in accordance with NF P-P18-594 [44].…”

“…Furthermore, the ASR in concrete with glass could also be caused by the micro residual cracks inside recycled glass particles, generated during the glass bottle crushing operations [34][35][36]. To attenuate the deleterious alkali silica reaction, some authors proceeded to add suppressors into concrete: [37] added fly ash, [38] dealt with silica fume, and [39] were interested in rice husk ash.…”