文章摘要
陈 铮,陈 蒙,祝小靓,谢帮华.掺合料对水泥基材料抗酸腐蚀性能的影响[J].江西水利科技,2020,(4):
掺合料对水泥基材料抗酸腐蚀性能的影响
Effect of admixtures on acid corrosion resistance of cement based materials
  
DOI:
中文关键词: 粉煤灰  矿粉  水玻璃  酸腐蚀  水泥胶砂
英文关键词: Fly ash  Mineral powder  Sodium silicate  Acid corrosion  Cementgel sand
基金项目:
作者单位
陈 铮 江西省水利科学研究院 
陈 蒙 江西省水土保持科学研究院 
祝小靓 中建西部建设建材科学研究院 
谢帮华 南昌工程学院 
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中文摘要:
      水工结构混凝土酸腐蚀较普遍,严重影响了水工结构的寿命.文中以提高混凝土的抗酸性能为目标,从混凝土原材料方面展开研究,以聚丙烯纤维、粉煤灰、矿粉和水玻璃为主要掺合料,系统地研究了多掺复合料对水泥基材料抗酸腐蚀性能的影响.研究表明,粉煤灰掺量为15%~30%时,抗酸性能较好;矿粉掺量为15%~30%时,抗弱酸性能较好,抗强酸性能变化较小;水玻璃掺量为1.5%~3.0%时,抗酸性能较好;复掺时,粉煤灰:矿粉:水玻璃=15%:30%:1.5%效果较佳.
英文摘要:
      Acid corrosion of concrete used in hydraulic structures is common,which seriously affects the service life of hydraulic structures.In this paper,in order to improve the acid resistance of concrete as the goal,from the aspects of concrete raw materials,polypropylene fiber,fly ash,mineral powder and sodium silicate as the main admixtures,systematically studied the influence of multi admixtures on the acid corrosion resistance of cement-based materials.The results show that when the content of fly ash is 15%~30%,the acid resistance is better;when the mineral powder content is 15%~30%,the weak acid resistance is better,and the change of strong acid resistance is small;when the sodium silicate content is 1.5%~3.0% ,the acid resistance is better;when the fly ash:mineral powder:sodium silicate=15%:30%:1.5%,the effect is better.
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