摘要
通过试验对木质素磺酸盐减水剂(LS)、以LS为主配制的泵送剂(MB)以及以萘系高效减水剂(NSF)为主配制的泵送剂(NB)在矿渣粉掺量20%、粉煤灰掺量10%的C15~C40预拌混凝土中的技术、经济性进行了对比。结果表明,在原材料通常价格情况下,对于C30及C30以下的混凝土,采用泵送剂MB,其技术和经济性均最佳。在NSF原材料日益短缺导致NSF售价较高的情况下,实际工程中不得忽视LS这种利废、环保且经济性较佳的产品。
The properties and economy of application of 3 admixtures, i.e.lingo-sulfate based plasticizer(LS ), pumping agent MB mainly con raining LS, and pumping agent NB mainly containing naphthalene-sulphonate based superplasticizer (NSF), were experimentally investigated.The results indicate that the best properties and the best economy can be obtained when MB is added in ready-mixed concrete of Cl5 to C40 with the replacement by slag powder at 20% and by fly ash at 10%.It is proposed that LS should be taken seriously in application of ready-mixed concrete esneciallv when NSF is of high nrice led by the lack of NSF's raw materials.
出处
《混凝土》
CAS
CSCD
北大核心
2007年第5期41-43,47,共4页
Concrete
基金
上海市青年科技启明星计划(04qmx1428)
国家973重点基础研究发展规划项目(2001CB610704-1)
关键词
木质素磺酸盐减水剂
萘系高效减水剂
泵送剂
原材料成本
环境保护
ligno-sulfate based plasticizer
naphthalene-sulphonate based superplasticizer
pumping agent
cost of raw materials
environment protection