矿渣-废玻璃二元土工聚合物的耐久性能

IF 1.8 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Datla Neeraj Varma, Suresh Prasad Singh
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引用次数: 0

摘要

本文报告了不同玻璃粉含量的矿渣-玻璃粉(GP)土工聚合物砂浆的耐久性能,并将其与波特兰水泥砂浆(PCM)进行了比较。矿渣-玻璃粉混合物用 6 M NaOH 溶液活化,液固比为 0.35。研究了在高温暴露、湿润-干燥和冻融循环、水荡、表面磨损和碱-硅反应(ASR)条件下 28 天固化试样的性能。通过扫描电子显微镜分析来确定材料的微观结构变化。研究结果表明,适当的 GP 含量(10%)可提高矿渣-GP 二元土工聚合物的性能,并改善其耐久性。不过,ASR 膨胀率略有增加。与 PCM 相比,土工聚合物试样具有更高的强度和耐久性,这得益于其致密紧凑的微观结构和显著的凝胶形成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Durability properties of slag-waste glass binary geopolymer
This paper reports the durability properties of slag-glass powder (GP) geopolymer mortars at different GP contents and compares them with Portland cement mortars (PCM). The slag-GP mixes are activated with 6 M NaOH solution at 0.35 liquid-to-solid ratio. The performance of 28-day cured specimens under high-temperature exposures, wetting-drying and freezing-thawing cycles, water slaking, surface abrasion, and alkali-silica reactions (ASR) are examined. Scanning electron microscopic analysis is carried out to identify the microstructural changes in the material. The study outcomes indicate that an appropriate GP content (10%) enhances the performance of slag-GP binary geopolymers and improves its durability. However, ASR expansion is found to be increased marginally. The geopolymer specimens achieved higher strength and durability than PCM due to a dense and compact microstructure with significant gel formations.
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来源期刊
Magazine of Concrete Research
Magazine of Concrete Research 工程技术-材料科学:综合
CiteScore
4.60
自引率
11.10%
发文量
102
审稿时长
5 months
期刊介绍: For concrete and other cementitious derivatives to be developed further, we need to understand the use of alternative hydraulically active materials used in combination with plain Portland Cement, sustainability and durability issues. Both fundamental and best practice issues need to be addressed. Magazine of Concrete Research covers every aspect of concrete manufacture and behaviour from performance and evaluation of constituent materials to mix design, testing, durability, structural analysis and composite construction.
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