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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。
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.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.