• ▶ 2008-2024年被中国情报信息研究所评价中心评为“中国科技核心期刊”
  • ▶ 2019-2024年连续三届被中国科学院文献情报中心中国科学引文数据库CSCD(核心库)收录
  • ▶ 2021、2023年入编北京大学图书馆《中文核心期刊要目总览》
  • ▶ 2020-2024连续四年入选《科技期刊世界影响力指数(WJCI)报告》
吴福飞 , 董双快, 赵振华, 吴发银, 黄宗辉.水泥种类对砂浆收缩性能和孔结构参数的影响水资源与水工程学报[J].,2018,29(3):207-211
水泥种类对砂浆收缩性能和孔结构参数的影响
Effect of cement type on shrinkage performance and pore structure parameters of mortar
  
DOI:10.11705/j.issn.1672-643X.2018.03.35
中文关键词:  水泥  砂浆  收缩性能  力学性能  孔结构参数
英文关键词:cement  mortar  shrinkage performance  mechanical properties  pore structure parameters
基金项目:贵州师范大学 2016 年博士科研启动项目(0517073); 贵州科技厅—贵州师范大学联合基金项目(黔科合LH字[2017]7351号)
作者单位
吴福飞 , 董双快, 赵振华, 吴发银, 黄宗辉 (贵州师范大学 材料与建筑工程学院 贵州 贵阳 550025) 
摘要点击次数: 1759
全文下载次数: 696
中文摘要:
      研究常见水泥种类对砂浆收缩性能和孔结构参数的影响,为水泥的合理选用提供试验参考。采用贵州常见的4种水泥(毫龙水泥、西南水泥、尧柏水泥、中诚水泥),探索砂浆的力学性能、收缩性能和孔结构参数等性能。结果表明:随着养护龄期的延长,砂浆的抗折强度和抗压强度越高,但90 d时4种水泥砂浆抗压强度相差不大于3 MPa。砂浆的抗压强度与抗折强度之间呈现出显著的线性关系,折压比呈现出降低的趋势,干燥收缩与自收缩均随养护龄期的延长不断增长,但干燥收缩始终高于自收缩。通过吸水法发现,养护龄期的延长对砂浆孔结构均匀性有细化作用,但4种水泥砂浆的平均孔径相差不大,相差不到0.04。表明水泥产地不同,其性能的表现各异,文中4种水泥的建议选择顺序为:西南水泥>中诚水泥>尧柏水泥>豪龙水泥。
英文摘要:
      The effects of common cement types in Guizhou on mortar shrinkage properties and pore structure parameters were explored, providing experimental reference for the rational selection of cement. Based on this, four kinds of common cement (Haolong cement, south west cement, Yaobai cement, Zhongcheng cement) in Guizhou were used to investigate the mechanical properties, shrinkage performance and pore structure parameters of mortar. Results show that with the extension of curing age, the flexural strength and compressive strength of mortar increase, but the difference in the compressive strength of four cement mortar at 90d is less than 3MPa. The compressive strength and flexural strength of mortar show a significant linear relationship, and the folding and pressing ratio shows a decreasing trend. Drying shrinkage and autogenous shrinkage of cement mortar both increase with the extension of curing age , but the drying shrinkage is always higher than that of autogenous shrinkage. Through the water-absorbing method it can be found that the prolongation of the curing age had a refinement effect on the homogeneity of the mortar pore structure, but the average pore diameters of the four cement mortars were not significantly different and the difference is less than 0.04. Based on the above findings, it can be concluded that the performance of cement varies as the cement producing area varies also, it is suggested that the choice of 4 kinds of cement follows the order: southwest cement>Zhongcheng cement>Yaobai cement>Haolong cement.
查看全文  查看/发表评论  下载PDF阅读器
关闭