基于不同细骨料体系水工混凝土性能研究  

Performance Study of Hydraulic ConcreteBased on Different Fine Aggregate Systems

作　　者：夏大回 朱燨 魏士成 童晓 Xia Dahui;Zhu Xi;Wei Shicheng

机构地区：[1]合肥中建商品混凝土有限公司,安徽合肥230000

出　　处：《江苏建材》2024年第4期19-21,共3页Jiangsu Building Materials

摘　　要：为研究不同细骨料体系对水工混凝土性能的影响,在II区中砂颗粒级配下,分别采用河砂、机制砂、混合砂配置3组水工混凝土拌合物,并对其开展了工作性能、力学性能和耐久性能的对比分析研究。研究结果表明:在同等条件下,采用不同细骨料体系配置水工混凝土拌合物,混凝土工作性能、力学性能和耐久性能有明显不同;“高品质机制砂+球磨机制砂”配置的水工混凝土综合表现最优,说明机制砂完全可以替代河砂作为细骨料应用于水工混凝土的生产,并且使用高品质机制砂制备混凝土性能相比河砂更优。In order to study the influence of different fine aggregate systems on the performance of hydraulic concrete,three groups of hydraulic concrete mixtures were configured with river sand,machine-made sand and mixed sand under the medium sand particle gradation in Zone II.,and the working performance,mechanical properties and durability properties were compared and studied.The results show that under the same conditions,the working performance,mechanical properties and durability of concrete are significantly different when different fine aggregate systems are used to configure hydraulic concrete mixtures.The comprehensive performance of hydraulic concrete with the configuration of"high-quality machine-made sand+ball milled machine-made sand"is the best,indicating that machine-made sand can completely replace river sand as a fine aggregate in the production of hydraulic concrete,and the performance of using high-quality machine-made sand to prepare concrete is better than that of river sand.

关 键 词：河砂 高品质机制砂 球磨机制砂 混合砂 水工混凝土 混凝土性能 

分 类 号：TG113.25[金属学及工艺—物理冶金]