Mix Optimization of Ultra High-rise Pumping Concrete Based on Efficacy Coefficient Method

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Li, Z.G.^1 ; Chen, Heng^1

College of Architecture and Civil Engineering, Beijing University of Technology, Chaoyang, Beijing, China^1

关键词: Concrete mix design;    Dimensionless parameters;    Efficacy coefficient methods;    Efficacy coefficients;    Orthogonal experiment;    Pumping concretes;    Ultra-high;    Variation coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/2/022006/pdf
DOI  :  10.1088/1755-1315/267/2/022006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A new method is proposed to evaluate the combination property of ultra-high-rise pumping concrete for mix optimization. The weights of workability, strength and durability in regard to the concrete mix design are computed by the method of variation coefficient. Then, the aspects are unified into one dimensionless parameter named efficacy coefficient, and the performance of concrete is evaluated based on the value of the efficacy coefficient. The results of orthogonal experiments show that: the combination property of concrete can be evaluated successfully with the efficacy coefficient method. The results of optimization meet the requirements of engineering. This method is appropriate for mix optimization of ultra-high-rise pumping concrete.