Mix design of concrete with recycled clay-brick-powder using the orthogonal design method

作者：Ge Zhi; Gao Zhili; Sun Renjuan; Zheng Li^*

来源：Construction and Building Materials, 2012, 31: 289-293.

DOI：10.1016/j.conbuildmat.2012.01.002

• Recycled clay-brick-powder
• Average particle size
• Replacement ratio
• Mechanical properties

This research studied the effect of clay-brick-powder (CBP) on concrete mechanical properties, including compressive strength, static elastic modulus, and flexural strength. The orthogonal experimental design method was used to study the significance sequence of all influencing factors, including water/cementitious material ratio, sand ratio, replacement level, and average particle size of the CBP. A total of 17 mixes were tested including one normal cement concrete as reference. The mixtures with CBP reach more than 50 MPa and 20 GPa for 28-day compressive strength and elastic modulus, respectively. The flexural strength ranged from 10 to 12 MPa. Experiment results showed that recycled CBP could be used as partial replacement of cement in concrete. The optimal mix proportion was determined based on the experimental and orthogonal analysis.

• 出版日期2012-6
• 单位山东大学