| 磷石膏在矿渣-偏高岭土地聚合物中的应用 |
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| 引用本文： | 万新龙,呙润华,刘喜杰,谭新玉. 磷石膏在矿渣-偏高岭土地聚合物中的应用[J]. 四川建材, 2022, 0(1) |
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| 作者姓名： | 万新龙 呙润华 刘喜杰 谭新玉 |
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| 作者单位： | 新疆大学建筑工程学院;清华大学土木工程系;三峡大学材料与化工学院 |
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| 摘 要： | 本文对磷石膏在矿渣-偏高岭土中的应用进行了研究。通过SEM、EDX、XRD、化学结合水研究了其水化产物与微观形貌,并测试了地聚合物的抗折、抗压强度。结果表明,矿渣-偏高岭土地聚合物的水化产物主要为无定形态的C-(A)-S-H或N-(A)-S-H,加入磷石膏后,体系中生成了晶态的钙矾石。当磷石膏掺量达到20%后,硬化浆体具有较高的化学结合水增长速率,且抗压强度显著高于对照组。
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| 关 键 词： | 磷石膏 地聚合物 水化产物 抗压强度 |
Application of phosphogypsum in GGBS-metakaolin geopolymer |
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| WAN Xinlong,GUO Runhua,LIU Xijie,TAN Xinyu. Application of phosphogypsum in GGBS-metakaolin geopolymer[J]. Sichuan Building Materials, 2022, 0(1) |
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| Authors: | WAN Xinlong GUO Runhua LIU Xijie TAN Xinyu |
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| Affiliation: | (School of Architectural Engineering,Xinjiang University,Wulumuqi 830046,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China;College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China) |
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| Abstract: | In this paper,the application of phosphogypsum in GGBS-metakaolin geopolymer was studied.The hydration products and microstructure were investigated by SEM,EDX,XRD and non-evaporation water.The flexural strength and compressive strength were also measured.The results show that,the major hydration products of GGBS-metakaolin geopolymer was C-(A)-S-H or N-(A)-S-H gel.In addition,AFt was produced after adding phosphogypsum.When the replacement ratio reached 20%,the increasement rate of non-evaporation water was high.Meanwhile,the compressive strength of geopolymer containing phosphogypsum is significantly higher than that of control group. |
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| Keywords: | phosphogypsum geopolymer hydration product compressive strength |
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