| 渣土掺量对粉煤灰地聚合物力学性能的影响 |
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| 引用本文： | 王海良,赵于博,荣辉,张磊,张颖,高桂波.渣土掺量对粉煤灰地聚合物力学性能的影响[J].硅酸盐通报,2019,38(2):445-449. |
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| 作者姓名： | 王海良 赵于博 荣辉 张磊 张颖 高桂波 |
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| 作者单位： | 天津城建大学土木工程学院,天津 300384;天津市土木建筑结构防护与加固重点实验室,天津 300384;天津城建大学土木工程学院,天津,300384;天津城建大学材料科学与工程学院,天津 300384;河海大学水文水资源与水利工程科学国家重点实验室,南京 210098;天津城建大学材料科学与工程学院,天津,300384;天津市土木建筑结构防护与加固重点实验室,天津 300384;天津城建大学材料科学与工程学院,天津 300384;中国建筑科学研究院,北京,100013 |
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| 基金项目： | 国家自然科学基金(51502195)%天津市自然科学基金重点项目(16JCZDJC39100)%水文水资源与水利工程科学国家重点实验室开放基金(2015491611)%天津市土木建筑结构防护与加固重点实验室开放基金(JGSYS2017-1) |
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| 摘 要： | 研究了不同渣土掺量对粉煤灰地聚合物力学性能的影响并对试样的微观结构进行分析。研究结果表明:(1)当渣土掺量为0时,粉煤灰地聚物试样的28 d抗压强度可达到43. 6 MPa,当渣土掺量为100%时,无法合成地聚合物;(2)粉煤灰地聚合物的抗压强度随着渣土掺量的增加而降低;当渣土掺量低于60%时,水化产物中N-A-S-H凝胶的含量随着渣土掺量的增加而降低,而C-S-H凝胶、钙矾石晶体和石膏晶体的含量随着渣土掺量的增加而增加;当渣土掺量高于60%时,水化产物中的C-S-H凝胶、N-A-S-H凝胶、钙矾石晶体和石膏柱状晶体的含量均随着渣土掺量的增加而降低,且抗压强度随着养护龄期的增加而降低。
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| 关 键 词： | 渣土 粉煤灰 地聚合物 抗压强度 微观结构 |
Influence of the Muck Content on Mechanical Properties of Fly Ash Geopolymer |
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| WANG Hai-liang,ZHAO Yu-bo,RONG Hui,ZHANG Lei,ZHANG Ying,GAO Gui-bo.Influence of the Muck Content on Mechanical Properties of Fly Ash Geopolymer[J].Bulletin of the Chinese Ceramic Society,2019,38(2):445-449. |
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| Authors: | WANG Hai-liang ZHAO Yu-bo RONG Hui ZHANG Lei ZHANG Ying GAO Gui-bo |
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| Affiliation: | (School of Civil Engineering,Tianjin Chengjian University,Tianjin 300384,China;Tianjin Key Laboratory of Civil Structure Protection and Reinforcement,Tianjin 300384,China;School of Materials and Engineering,Tianjin Chengjian University,Tianjin 300384,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;China Academy of Building Research,Beijing 100013,China) |
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| Abstract: | The effect of different content of muck on the mechanical properties of fly ash geopolymers is studied and the microstructure of the samples was analyzed.The results show that:(1)When the content of muck is 0,the 28 d compressive strength of fly ash geopolymer can reach 43.6 MPa.When the content of muck is 100%,the geopolymers can not be synthesized.(2)The compressive strength of fly ash geopolymer decreases with the increase of the content of muck.When the content of muck is less than 60%,the content of N-A-S-H decreases with the increase of the content of the muck,while the content of C-S-H,ettringite crystal and gypsum crystal increases with the increase of the content of muck.When the content of muck is higher than 60%,the content of C-S-H,N-A-S-H,ettringite crystals and gypsum crystals decreases with the increase of the content of muck,and the compressive strength decreases with the increase of curing age. |
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| Keywords: | muck fly ash geopolymer compressive strength microstructure |
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