摘要
采用正交试验方法 ,研究了水胶比、骨灰比、砂率等指标对各龄期高性能混凝土抗压强度和 2 8d氯离子渗透性的影响。研究结果表明 ,骨料的数量效应非常显著 ,即骨灰比和砂率的大小对于高性能混凝土强度和氯离子渗透性的影响均比较大。水胶比、骨灰比和砂率对高性能混凝土强度和氯离子渗透性的影响顺序相同 ,但影响程度不一样。骨灰比和砂率对高性能混凝土早期强度的影响小于对后期强度的影响。对于 2 8d抗压强度 ,水灰比。
By the approach of orthogonal experiment,the effects of ratios of water binder,aggregate binder,and sand aggregate on the compressive strength at different age and the resistance to chloride ion were investigated.The results showed that the quantity effects of aggregate are very notable,that is to say,the effects of the ratios of aggregate binder,and sand aggregate on the compressive strength and the resistance to chloride ion are very notable.The sequence of effects of ratios of water binder,aggregate binder,and sand aggregate on the compressive strength is the same as that on the resistance to chloride ion,but the magnitude of effects is not the same.The effects of the ratios of aggregate binder,and sand aggregate on the compressive strength is smaller at early age than at long age.For the compressive strength at the age of 28 day,the ratios of water binder,aggregate binder,and sand aggregate have the most optimizing value respectively.
出处
《四川建筑科学研究》
2001年第2期43-45,共3页
Sichuan Building Science
关键词
高性能混凝土
骨料数量效应
正交试验
骨灰比
砂率
水胶比
High Performance Concrete(HPC)
quantity effects of aggregate
orthogonal experiment
ratio of aggregate binder
ratio of sand aggregate
ratio of water binder
resistance to chloride ion
compressive strength
