| 碱激发剂对碱矿渣混凝土高温后抗压强度的影响研究 |
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| 引用本文： | 刘倩,马倩敏,彭潇,石瑜,龙应斌,梁治强,缪沁峰.碱激发剂对碱矿渣混凝土高温后抗压强度的影响研究[J].新型建筑材料,2022(2):70-74. |
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| 作者姓名： | 刘倩 马倩敏 彭潇 石瑜 龙应斌 梁治强 缪沁峰 |
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| 作者单位： | 昆明理工大学建筑工程学院;昆明理工大学建筑工程学院 |
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| 基金项目： | 国家自然科学基金项目(52068038);云南省教育厅科学研究基金项目(2019J0044);云南省科技厅基础研究专项-面上项目(202101AT070089);昆明理工大学分析测试基金(2020M20192210078);云南省大学生创新训练项目(201910674247)。 |
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| 摘 要： | 研究了激发剂碱浓度和模数对碱矿渣混凝土经高温作用后抗压强度的影响.结果表明,对于水胶比为0.45的碱矿渣混凝土,当水玻璃模数低于1.5时,随着碱浓度的增加,碱矿渣混凝土高温后的残余抗压强度先提高后降低,碱浓度为6％时最高;而当模数为2.0时,碱浓度为8％的残余抗压强度最高.当碱浓度低于6％时,水玻璃模数与碱矿渣混凝土高...
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| 关 键 词： | 碱矿渣混凝土 高温 水玻璃模数 碱浓度 抗压强度 |
Effect of alkali activator on compressive strength of alkali activated slag concrete after high temperature |
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| LIU Qian,MA Qianmin,PENG Xiao,SHI Yu,LONG Yingbin,LIANG Zhiqiang,MIU Qinfeng.Effect of alkali activator on compressive strength of alkali activated slag concrete after high temperature[J].New Building Materials,2022(2):70-74. |
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| Authors: | LIU Qian MA Qianmin PENG Xiao SHI Yu LONG Yingbin LIANG Zhiqiang MIU Qinfeng |
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| Affiliation: | (Key Laboratory of Yunnan Province for Disaster Prevention in Civil Engineering,Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China) |
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| Abstract: | The effects of alkali concentration and modulus of activator on the compressive strength of alkali slag concrete after high temperature were studied.The results show that the residual compressive strength of alkali slag concrete with water-binder ratio of 0.45 increases first and then decreases with the increase of alkali concentration when the sodium glass modulus is less than 1.5,and the maximum compressive strength is reached when the alkali concentration is 6%.When the modulus is 2.0,the residual compressive strength of 8%alkali concentration is the largest.When the alkali concentration is lower than 6%,the modulus of sodium silicate is inversely proportional to the residual compressive strength of alkali slag concrete after high temperature.However,when the alkali concentration is 8%,the residual compressive strength of alkali slag concrete with modulus 2.0 is the largest. |
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| Keywords: | alkali slag concrete high temperature sodium silicate modulus alkali concentration compressive strength |
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