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本文介绍采用自密实混凝土技术可以满足T型变截面梁的施工要求;通过采用P·O52.5R水泥、大掺量矿物掺合料、聚羧酸高效减水剂以及5~20mm连续级配碎石,依据JGJ/T283-2012《自密实混凝土应用技术规程》可以配制出性能优良的C50自密实混凝土;另外,通过制定科学的混凝土生产、施工质量控制方案,可以得到外观质量良好、混凝土性能满足设计要求的混凝土结构。
This paper introduces the application of self-compacting concrete technology to meet the construction requirements of T-shaped beam; through the use of P · O52.5R cement, a large amount of mineral admixture, polycarboxylate superplasticizer and 5 ~ 20mm continuous grading Stone, according to JGJ / T283-2012 “self-compacting concrete application of technical regulations” can be prepared with excellent performance of C50 self-compacting concrete; In addition, through the development of scientific concrete production and construction quality control program, you can get the appearance of good quality, concrete performance to meet Design requirements of the concrete structure.