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本文通过试验的方式,围绕混凝土拌合物中砂含泥量相对于聚羧酸型外加剂适应性能的影响这一中心问题展开了详细分析与说明,通过对砂含泥量比例的合理调整与控制,分别试验C30强度等级以及C40强度等级混凝土拌合物基本性能的所受影响,得出以下结论:综合对混凝土拌合物使用性能以及经济性能的考量,需要将砂泥含量控制在3.25%~6.25%比例范围之内,以保障其基本性能的稳定性以及具体施工的要求。
In this paper, a detailed analysis and explanation are given on the central issue of the influence of sand content in concrete admixture on the adaptability of polycarboxylic acid type additives by means of experiments. Through the reasonable adjustment of the proportion of sand content and Control, test C30 strength grade and C40 strength grade concrete mixture basic properties affected, draw the following conclusions: Comprehensive use of concrete admixture performance and economic performance considerations, the need to control the sand content of 3.25% ~ 6.25% of the proportion of the range, in order to protect the stability of its basic performance and the specific construction requirements.