利用粉煤灰配制自密实混凝土技术研究

Study on Preparation Techniques of Self-Compacting Concrete Using Fly Ash

本文根据流变学原理论述了自密实混凝土的配制机理与配合比设计技术。试验研究了砂率。粉煤灰类型与掺量、超塑化剂的种类等因素对自密实混凝土拌和物性能与力学性能的影响。结果表明，采用这些配制技术可以配制出性能优异的自密实混凝土。

The preparation mechanism and mix proportion design techniques of self - compacting concrete arereviewed according to rheologica-l principles in this paper. The effects of sand ratio, type and content of fly ash, andclassifications of superplasticizers on the fresh properties and mechanic properties of the self - compacting concrete arestudied by tests. The results indicate the high - performance self - compacting concrete can be prepared if thepreparation techniques studied in this paper are employed.