含气量对石灰石粉与低品质粉煤灰双掺绿色混凝土性能的影响研究  

Influence Research of Air Content on Properties of Green Concrete with Limestone Powder and Low-quality Fly Ash

作　　者：徐国强[1,2] 高林[1,2] 丁锋[3] 齐国才 

机构地区：[1]河北联合大学建筑工程学院,唐山063009 [2]河北省地震工程研究中心,唐山063009 [3]唐山市交通运输局,063000

出　　处：《混凝土与水泥制品》2013年第5期85-87,共3页China Concrete and Cement Products

基　　金：国家自然科学基金项目(51278164);唐山市科技计划项目(12140208A-1)

摘　　要：通过在石灰石粉与低品质粉煤灰双掺绿色混凝土中掺加引气剂,使新拌混凝土的含气量在3%-5%之间,研究了含气量对此类混凝土的长期抗压强度、抗冻性能和抗氯离子渗透性能的影响。结果表明,引气剂的掺入使得石灰石粉与低品质粉煤灰双掺绿色混凝土的长期抗压强度有所降低,但可以明显提高此类混凝土的抗冻性能,而对此类混凝土的抗氯离子渗透性能影响不大。Through mixing air entraining agent, the air content of fresh concrete with limestone powder and low- quality fly ash is between 3% to 5%. The influences of air content on the long-term compressive strength, frost resistance and the ability to resist chloride ion penetration of green concrete are researched. The results show that the air entraining agent makes concrete,s long-term compressive strength reduce, but it can obviously improve the frost resistance of green concrete, and it has little effect on the ability to resist chloride ion penetration of concrete.

关 键 词：石灰石粉 低品质粉煤灰 绿色混凝土 含气量 双掺 

分 类 号：TU528[建筑科学—建筑技术科学]