Performance analysis of concrete with repurposed industrial glass waste

作     者：Cadore, Bianca Carlin Ribeiro, Francisco Roger Carneiro Modolo, Regina Célia Espinosa Pacheco, Fernanda 

作者机构：Civil Engineering Undergraduate Program Universidade do Vale do Rio do Sinos (UNISINOS) RS São Leopoldo Brazil Civil Engineering Graduate Program Universidade Federal do Rio Grande do Sul (UFRGS) RS Porto Alegre Brazil Civil Engineering Graduate Program Universidade do Vale do Rio do Sinos (UNISINOS) RS São Leopoldo Brazil 

出 版 物：《Journal of Building Pathology and Rehabilitation》 (J. Build. Pathol. Rehabilit.)

年 卷 期：2023年第8卷第1期

页      面：1-13页

基　　金：Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq, (310369/2021-5, 310369/2021-5 (PQ2) Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq 

主　　题：Conventional concretes Industrial glass waste Supplementary cementitious materials 

摘      要：The purpose of this study was to evaluate the repurposed use of lapidated industrial glass waste in substitution of Portland cement in conventional concretes. Replacement ratios of 0%, 10%, 20% and 30% with respect to mass of cement were tested. The glass residue was subjected to laser granulometry and X-ray fluorescence to determine its granulometry, specific mass, surface area and pozzolanic activity. The effects of cement substitution on performance were evaluated with compression strength tests, physical property measurements, capillary water absorptivity, electrical resistance and ultrasonic wave propagation in samples aged 7 days, 28 days, 56 days and 90 days. Chemical analysis determined the decrease of some elements due to pozzolanic and expansion reactions while pozzolanic activity was measured at 98%. Electrical resistance, which was related to concrete durability, obtained significant results with a 30% substitution ratio. Capillary water absorption was mostly unchanged with slight improvements with a 20% replacement ratio. Physical properties and ultrasonic wave propagation were consistent with compression strength results: higher strength was related to lower void index and total absorption, which resulted in higher density and higher wave propagation speed. Although no substantial results were obtained, the relative increase in compression strength was high, which highlighted the effectiveness of substituting cement with repurposed ground glass waste. © 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.