摘要
试验研究了低水灰比条件下,砂率对道面混凝土工作性、强度、耐磨性、抗水渗透性和抗冻性的影响规律.结果表明:砂率存在一个最佳值,此值下道面混凝土工作性最佳;随着砂率的增大,道面混凝土耐磨性能降低,抗渗性能提高,抗折强度、抗压强度和抗冻性均呈现先增大后减小的规律.最后,提出了低水灰比道面混凝土的合理砂率取值.
Under the condition of low water-cement ratio, tests were carried out to study the effects of sand ratio on the workability, strength, wear resistance, impermeability and frost resistance of pavement concrete. It is proved that there exists a best sand ratio under which the pavement concrete performs best. With the increase of sand ratio, the wear resistance of pavement concrete deceases and the impermeability increases; the flexural strength, compressive strength and frost resistance all increase first and then decrease. In the end, it puts forward the rational sand ratio of pavement concrete in low wate;cement ratio.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2013年第2期239-244,共6页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
空军后勤部科研项目(西北地区军用机场水泥混凝土道路修补技术研究(KJYZ0982))
关键词
机场工程
道面混凝土
砂率
工作性
强度
耐久性
airport engineering
pavement concrete
sand ratio
workability
strength
durability
作者简介
翁兴中（1962-），男，浙江金华人，教授，博士生导师，研究方向：主要从事机场道面工程研究．
