期刊论文

中文

武汉轻工大学学报

2095-7386

2019

38

5

59-62

10.3969/j.issn.2095-7386.2019.05.012

本校为第一机构

探究了用海砂替代河砂以不同替代比例(25％,50％,75％,100％)和不同养护龄期(3 d,7 d,28 d)对水泥砂浆试件的表观密度、吸水率、抗折强度和抗压强度等物理性能的影响.经过对实验数据的合理分析总结,得出以下结论:随着用海砂替代河砂的替代比例的增加,水泥砂浆试件的表观密度呈下降趋势;随着海砂替代河砂的比例增加,试件吸水前的质量、吸水后的质量和吸水率均呈负相关:在相同养护龄期的条件下,通过提高海砂替代河砂的比例,水泥砂浆试件的抗折强度和抗压强度均呈减小的趋势,且养护龄期越长,这种减小的趋势越明显:在相同的替代比例下,随着养护龄期增加,试件的抗折强度和抗压强度呈增加趋势,且替代比...

This issue makes a study of the influence of physical properties,such as apparent density,water absorption,flexural strength and compressive strength of cement mortar test pieces with different substitution ratios (25%,50%,75%,100%) and different maintenance ages (3d,7d,28d).After a reasonable analysis to the experimental data,the following conclusions are drawn: with the increase of the alternative ratio of replacing river sand with sea sand,the apparent density of square cement mortar test piece showed a downward trend;with the increase of the alternative ratio of replacing river sand with s...