复掺技术在椰壳纤维再生混凝土的应用研究  

APPLICATION OF DOUBLE-DOPED TECHNOLOGY IN COCONUT FIBER RECYCLED CONCRETE

作　　者：张星一 赵玉青[2] ZHANG Xingyi;ZHAO Yuqing(Project Evaluation and Consultation Center of NDRC in Ali District,Xizang ali 859000,China;North China University of Water Resources and Electric Power,Zhengzhou 450011,China)

机构地区：[1]阿里地区发改委项目评审咨询中心,西藏阿里859000 [2]华北水利水电大学,郑州450011

出　　处：《低温建筑技术》2021年第8期26-28,33,共4页Low Temperature Architecture Technology

基　　金：无机超分子材料抑制混凝土硫酸盐侵蚀反应的基础研究(51508191);西藏科技厅项目(ALQYKJCX2020-03)。

摘　　要：采用粉煤灰等量取代法,复掺加粉煤灰和高效减水剂配制椰壳纤维再生混凝土,通过正交设计试验法分析了影响椰壳纤维再生混凝土立方体抗压强度的主要因素,并选择了配制椰壳纤维再生混凝土的最佳配合比。试验结果表明,在再生骨料取代量、粉煤灰取代量、椰壳纤维掺量和水胶比、高效减水剂五个影响因素中,对再生混凝土28d抗压强度的影响最主要的影响因素是粉煤灰取代水泥量。经正交试验确定的最佳配合比设计的再生混凝土和易性和强度均能满足一般工程的质量要求,可用于实际工程施工。This paper used equal amount replacement method of fly ash,and coconut fiber regenerated concrete was mixed by adding fly ash and superplasticizer.And the primary factor influencing compressive strength of coconut fiber regenerated concrete was studied by orthogonal test,also,the optimized mix proportion was obtained.Additionally,The results showed that the most important factor affecting compressive strength of coconut fiber regenerate concrete was fly ash substitution amount among regenerate aggregate dosage,fly ash substitution amount,coconut fiber,amount of superplasticizer and water cement ratio.The workability and compressive strength of optimized concrete mixed can satisfy the quality request of general engineering,and this can be used to construction.

关 键 词：复掺技术 椰壳纤维 再生混凝土 正交试验 

分 类 号：TU528.9[建筑科学—建筑技术科学]