摘要
利用纳米微粉的高化学活性和微粒性,通过混凝土耐久性试验研究,研制新型混凝土改性剂。结果表明,当纳米微粉的掺量为1g～3g/kg时,其施工成本与市售外加剂相当,这时混凝土的抗渗等级提高30%,抗冻等级提高50%。
The new property-improved concrete admixture is studied through the experiment on durable properties of concrete utilizing high chemical active property and micro-particle property of nm level micro-powder.The results show that the cost of concrete with a mixing amount of micro-powder between 1 g/kg and 3 g/kg is basically the same as that of concrete with ordinary admixtures and its permeability-resistant level increases by 30% and frost-resistant level by 50%.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2004年第7期107-110,共4页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家863计划项目(2002AA2Z4131
2001AA242071)
关键词
纳米微粉
改性剂
混凝土
抗渗性
抗冻性
nm level micro-powder
property-improved admixture
concrete
permeability-resistant property
frost-resistant property
