【摘要】 本文采用常规工艺 ,采用上海、广州两地的原材料制备出 90MPa～ 10 0MPa ,初始坍落度为 ( 2 0± 2 )cm ,2小时坍落度为 17cm以上的大流动度高强混凝土。深入研究了掺合料、减水剂、砂率等因素对高强混凝土性能的影响。同时 ,系统研究了大流动度超高强混凝土的物理力学性能与耐久性。更多还原

【Abstract】 By using normal technology and raw material in guangzhou and Shanghai,high strength and high fluidty concrete with slump 20±2cm,was made,the slump of the concrete is abave 17cm after two hours.Influnces of mineral admixture,chemicail admixture and sand ratio on property of the high strength concrete was deeply studied.Mechanical property and durability of concrete with high fluidy and high strength was made systematic discussion.更多还原