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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (11): 4017-4026.

Special Issue: 资源综合利用

• Solid Waste and Eco-Materials • Previous Articles     Next Articles

Effects of Industrial Solid Waste Powders on Performance of High-Performance Self-Compacting Concrete

HE Xiang1, QIAO Xiantao1, YU Peng2, ZHOU Jiale2, NIU Jiandong3   

  1. 1. China Railway Construction (Dongguan) Investment Corporation Limited, Dongguan 523867, China;
    2. School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China;
    3. School of Civil Engineering, Central South University, Changsha 410083, China
  • Received:2023-06-23 Revised:2023-08-01 Online:2023-11-15 Published:2023-11-22

Abstract: In order to investigate the influence mechanism of various industrial solid waste powders on the mechanical properties and durability of high-performance self-compacting concrete (HPSCC), an experimental investigation was conducted on the concrete with various mass fraction of fly ash, furnace slag, lime powder, coal gangue powder and marble powder. The slump flow, T50 flow time, L-box and V-funnel flow time were experimentally measured to evaluate the workability of HPSCC. The concrete mechanical properties were evaluated by measuring ultrasonic pulse velocity and compressive strength. In addition, the power consumption and water penetration depth were tested to characterize its durability. The results show that fly ash, furnace slag, lime powder, coal gangue powder and marble powder can be used to prepare HPSCC with excellent workability and durability. The allowable mass fraction of fly ash and furnace slag powder is 35% and 60%, respectively. While, the allowable mass fraction for coal gangue powder, lime powder and marble powder is 30%, respectively. The addition of fly ash significantly improves the concrete workability, with a maximum slump flow of 750 mm. Except for lime powder, the increase of other industrial solid waste powders leads to a better concrete anti-chloride ion permeability. However, the increase of industrial solid waste powders can reduce the impermeability and compressive strength of concrete. The concrete mixed with 30% lime powder shows the largest decrease in compressive strength, with a reduction of 20.8%.

Key words: high-performance self-compacting concrete, industrial solid waste powder, mechanical property, workability, durability

CLC Number: