为满足合武线高速铁路工程的特点,采用粉煤灰及磨细矿渣粉双掺的方法,配合使用聚羧酸高效减水剂,在胶凝材料总量一定的情况下,改变掺合料的掺入比例,考察对混凝土各项指标的影响,总结出掺合料掺入比例对混凝土耐久性的影响规律,从而找出满足工程要求的最佳掺合比例。%In order to meet the characteristics of He-Wu line super-speed railuay engineering,project used double mixed method of fly ash and slag powder,with the use of poly carboxylic acid water reducing agent,under the certain condition of total amount of cementitious material,changed the blending ratio of admixtures,investigated the influence of each index to concrete,summed up the influence rules of admixtures blending ratio to the durability of concrete,so as to find out the optimum blending ratio could meet the requirements of project.
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