摘要
与普通水泥混凝土相比,聚合物混凝土通常具有更好的工作性能、更强的力学性能和耐久性能,其内部结构也发生了改变,配合比的设计方案和过程也相对更加复杂。因此,通过室内试验开展了配合比对聚合物混凝土性能影响的研究,主要包括水灰比、聚灰比以及砂率对聚合物混凝土抗压强度以及抗折强度的影响。结果表明:随着水灰比和砂率的逐渐增大,聚合物混凝土的抗压强度和抗折强度值均先增大后减小,而随着聚灰比的逐渐增大,聚合物混凝土的抗压强度和抗折强度值均逐渐增大。并且聚合物混凝土养护龄期为28 d时的抗压强度和抗折强度值均明显高于7d。在所有的配合比实验方案中,当水灰比为0.32、聚灰比为0.15、砂率为0.4时,聚合物混凝土具备较强的抗压能力和抗折能力。
Compared with ordinary cement concrete, polymer concrete usually has better working performance,stronger mechanical properties and durability. Its internal structure has also changed, and the design scheme and process of mix proportion are relatively more complex. Therefore, the effects of mix ratio on the properties of polymer concrete were studied through laboratory tests, mainly including the effects of water-cement ratio, polymer-cement ratio and sand ratio on the compressive strength and flexural strength of polymer concrete. The results showed that with the gradual increase of water-cement ratio and sand ratio, the compressive strength and flexural strength of polymer concrete first increased and then decreased, while with the gradual increase of polymer-cement ratio, the compressive strength and flexural strength of polymer concrete gradually increased. The compressive strength and flexural strength of polymer concrete at the curing age of 28 days were significantly higher than that of 7 days. In all the mix proportion experimental schemes, when the water-cement ratio was 0.32, the polymer-cement ratio was 0.15and the sand ratio was 0.4, the polymer concrete had strong compressive strength and flexural strength.
作者
张雨雷
刘峰
詹志杰
于文宝
吴雅军
王云龙
兰琦
ZHANG Yu-lei;LIU Feng;ZHAN Zhi-jie;YU Wen-bao;WU Ya-jun;WANG Yun-long;LAN Qi(CSCEC-TAISEI Construction Co.,Ltd.,Beijing 100048,China)
出处
《当代化工》
CAS
2022年第12期2785-2788,共4页
Contemporary Chemical Industry
基金
国家自然科学基金面上项目(项目编号:51709292)。
关键词
聚合物混凝土
配合比
抗压强度
抗折强度
影响因素
Polymer concrete
Mix proportion
Compressive strength
Flexural strength
Influence factor
