摘要
随着建筑工业化的发展,预制混凝土墙板的使用越来越广泛。墙板胶黏剂用于预制混凝土墙板的拼接和黏结,当墙板胶黏剂拉伸强度较小时,容易产生裂缝等问题。为改善胶黏剂拉伸强度,本文在原有的研究基础上研究了滑石粉、矿粉、偏高岭土三种矿物掺合料复掺对墙板胶黏剂拉伸黏结强度的影响。正交试验结果表明,滑石粉和矿粉可以有效改善胶黏剂的拉伸黏结强度。偏高岭土掺量过大会影响其拉伸强度。由优化试验可知矿粉和滑石粉复掺最佳掺量分别为20%和30%。
With the development of construction industrialization, precast concrete panels are applied more and more widely. Panel adhesive is used for assemblage and binding the precast concrete panels. When its tensile strength is not high enough, it will cause problems like cracking. In order to improve its tensile strength, the influence of mixing talc powder, slag powder and metakaolin on the tensile bond strength of panel adhesive were studied based on previous research. The orthogonal experiment results showed that, adding talc powder and slag powder could improve the tensile bond strength effectively, but the large amount of metakaolin could decrease the tensile strength. The optimizing experiment results showed that the optimal mix ratio of talc powder and slag powder was 30% and 20% respectively.
出处
《混凝土与水泥制品》
2016年第10期62-66,共5页
China Concrete and Cement Products
基金
华南理工大学中央高校基本科研业务费本科生自主选题项目资助项目(10561201501)
华南理工大学2015年"百步梯攀登计划"资助项目(AA20315039)
华南理工大学2015年学生研究计划资助项目(105612015S600)
关键词
矿物掺合料
复掺
墙板胶黏剂
拉伸黏结强度
正交试验
Mineral admixture
Mixing
panel adhesive
Tensile bond strength
Orthogonal experiment
