Effect of temperature on the long-term properties of mortars containing waste glass powder and ground granulated blast furnace slag

IF 0.5 4区工程技术 Q4 CONSTRUCTION & BUILDING TECHNOLOGY

Cement Wapno Beton Pub Date : 2021-01-01 DOI:10.32047/cwb.2021.26.4.1

Jakub Szydłowski, Wojciech Szudek, Ł. Gołek

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引用次数: 5

Abstract

The paper presents new and unique results of two-year examinations of mortars containing ground glass, as a substitute for 15 or 30% by mass of ordinary Portland cement in comparison with the properties of mortars with the analogous addition of ground granulated blast furnace slag, in different temperatures. Moreover, after a two-year curing period, the mortars were autoclaved. Samples were subjected to compressive strength measurements, XRD analysis and the determination of calcium hydroxide content, by means of thermogravimetric analysis. The results confirm that as an additive, glass powder, thanks to its pozzolanic properties, can compete with common SCMs like granulated blast furnace slag. Additionally, a reduction in strength was not observed after the autoclaving process, for the mortars with 15% glass addition. The data collected in the paper confirms that the pozzolanic properties of ground glass allows its use as an additive. It also shows the ability of these mortars to maintain a constant level of strength in the long term and even after the autoclaving of two-year-old samples

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温度对含废玻璃粉和磨粒矿渣砂浆长期性能的影响

本文介绍了用磨砂玻璃代替15%或30%质量的普通硅酸盐水泥的砂浆，在不同温度下，与类似添加磨砂的高炉矿渣砂浆的性能进行了为期两年的试验，得出了新的、独特的结果。此外，经过两年的养护期后，砂浆进行高压灭菌。对样品进行了抗压强度测定、XRD分析、氢氧化钙含量测定和热重分析。结果证实，玻璃粉作为添加剂，由于其火山灰性质，可以与粒状高炉渣等普通SCMs竞争。此外，对于添加15%玻璃的砂浆，在高压灭菌过程后没有观察到强度的降低。本文收集的数据证实，磨砂玻璃的火山灰性质允许其作为添加剂使用。它还表明，这些砂浆的能力，以保持一个恒定的强度水平在长期，甚至在高压灭菌两年的样品

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cement Wapno Beton CONSTRUCTION & BUILDING TECHNOLOGY-MATERIALS SCIENCE, COMPOSITES

CiteScore

1.30

自引率

28.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Publisher of the scientific bimonthly of international circulation, entitled "Cement-Wapno-Beton" ["Cement-Lime-Concrete"], is the Fundacja Cement, Wapno, Beton [Foundation Cement, Lime, Concrete]. The periodical is dedicated to the issues concerning mineral setting materials and concrete. It is concerned with the publication of academic and research works from the field of chemistry and technology of building setting materials and concrete