随着北京市场的进一步规范,原材的常规指标已经得到有效控制,包括砂含泥、粉煤灰细度等,但随之而来的砂级配、粉煤灰形貌,包括水泥细度、矿物组成对混凝土性能、聚羧酸外加剂适应性影响逐渐显现。本文结合我中心生产实例,对目前北京市场常见原材适应性进行研究,并对改善聚羧酸减水剂的适应性做了初步探讨。 With the further standardization of the Beijing market, the conventional indicators of raw materials have been effectively controlled, including sand and mud, the fineness of fly ash, but the sand grading, fly ash morphology, including the fineness of cement , The influence of mineral composition on concrete performance and adaptability of polycarboxylate additive gradually appears. In this paper, my center of production examples, the current market in Beijing to adapt to common raw materials, and to improve the adaptability of polycarboxylate superplasticizer made a preliminary study.