废玻璃粉对废玻璃集料引发的碱-硅酸反应膨胀的抑制作用

Inhibitory Effect of Waste Glass Powder on ASR Expansion Induced by Waste Glass Aggregate.

作者信息

Liu Shuhua, Wang Shu, Tang Wan, Hu Ningning, Wei Jianpeng

机构信息

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China.

Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London WC1E 6BT, UK.

出版信息

Materials (Basel). 2015 Oct 9;8(10):6849-6862. doi: 10.3390/ma8105344.

DOI:10.3390/ma8105344

PMID:28793603

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5455400/

Abstract

Detailed research is carried out to ascertain the inhibitory effect of waste glass powder (WGP) on alkali-silica reaction (ASR) expansion induced by waste glass aggregate in this paper. The alkali reactivity of waste glass aggregate is examined by two methods in accordance with the China Test Code SL352-2006. The potential of WGP to control the ASR expansion is determined in terms of mean diameter, specific surface area, content of WGP and curing temperature. Two mathematical models are developed to estimate the inhibitory efficiency of WGP. These studies show that there is ASR risk with an ASR expansion rate over 0.2% when the sand contains more than 30% glass aggregate. However, WGP can effectively control the ASR expansion and inhibit the expansion rate induced by the glass aggregate to be under 0.1%. The two mathematical models have good simulation results, which can be used to evaluate the inhibitory effect of WGP on ASR risk.

摘要

本文开展了详细研究，以确定废玻璃粉（WGP）对废玻璃骨料引发的碱 - 硅反应（ASR）膨胀的抑制作用。根据中国试验规程SL352 - 2006，采用两种方法检测废玻璃骨料的碱活性。从平均粒径、比表面积、WGP含量和养护温度等方面确定WGP控制ASR膨胀的潜力。建立了两个数学模型来估算WGP的抑制效率。这些研究表明，当砂中玻璃骨料含量超过30%时，存在ASR风险，ASR膨胀率超过0.2%。然而，WGP能有效控制ASR膨胀，将玻璃骨料引发的膨胀率抑制在0.1%以下。这两个数学模型具有良好的模拟结果，可用于评估WGP对ASR风险的抑制效果。