利用稻壳灰配制自密实混凝土性能的研究  

Study of Self Compacting Concrete with Rice Husk Ash

作　　者：万惠文[1] 刘离[1] 陈伟[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《武汉理工大学学报》2011年第7期32-34,46,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50802067)

摘　　要：利用生物质燃料稻谷壳发电是一种实现节能减排的有效方法,将发电厂焚烧稻壳后收集的稻壳灰作为矿物掺合料配制自密实混凝土,通过设计配合比并不断试配、调整使混凝土强度达到C40且自密实性能达到二级指标要求。结果证明,当水胶比为0.34,稻壳灰掺量为8.2%,砂率为0.46且掺入1.5%的高性能减水剂时,混凝土强度、自密实性等性能都能达到设计要求,并且体积稳定性良好。Generating electricity by burning the rice husk is an effective method to contribute to energy saving and emission reduction.The rice husk ash（RHA） which was collected by power plants was added in self compacting concrete（SCC） as a kind of mineral admixture.The concrete mix proportion was designed and adjusted to assure the intensity of the concrete reach the C40 grade and the self compacting properties meet grade Ⅱ.The result shows that when the water-binder ratio is 0.34,sand ratio is 0.46,with 8.2% RHA and 1.5% superplasticizer,the intensity and self compacting properties of the concrete can both meet the designed level and the volume stability was also satisfying.

关 键 词：稻壳灰 活性SiO2 自密实混凝土 

分 类 号：TU528.0[建筑科学—建筑技术科学]