【摘要】 本研究利用地方原材料,在初步计算C25芯柱自密实混凝土的配合比的基础上,分析了外加剂和水胶比中单一因素对自密实混凝土性能的影响,优化出C25芯柱自密实混凝土。试验结果表明,C25芯柱自密实混凝土优化后配合比能满足其工作性和强度等级的要求,并与同强度等级Cb混凝土进行了经济比较。对混凝土小型砌块配芯柱的结构体系的发展具有重要意义。更多还原

【Abstract】 Based on the preliminary computation of mixture ratio for C25 core column serf-compact- ing concrete,this paper uses local material to analyze the single factor of the additives and water- binder ratio,and to optimize the performance of self-compacting concrete and C25-core self-com- pacting concrete.The experimental results indicate that the C25 core column self-compacting con- crete can satisfy its workability and strength,and with the same intensity level Cb concrete econom- ic comparison,hence of great significance for the development of the small concrete-block structure with core system.更多还原