Characteristics of Compressed Concrete Paving Units Produced from Washed Municipal Solid Waste Incinerator Bottom Ash

Abstract:

This study replaced natural aggregate with a fine aggregate of washed municipal solid waste incinerator bottom ash (WMSWIBA) in the production of compressed concrete paving units to increase the applications of WMSWIBA. The cement-aggregate ratios investigated were 0.1, 0.2, 0.3, 0.4 and 0.5, and the water-cement ratios were 0.20, 0.25 and 0.30. The results showed that the coefficient of permeability of the compressed concrete paving units was less than 2.66×10^-5 cm/sec, the water absorption was 13.55~4.75%, the porosity was 8.05~1.62%, the compressive strength was 12.3~48.5 MPa, the ultrasonic pulse velocity was 1521~3059 m/sec, and the attrition volume loss was 117.7~16.0 cm³/50 cm². The results suggested that the compressive strength and ultrasonic pulse velocity increase with the cement-aggregate ratio, whereas the attrition loss decreases.

• Periodical: Advanced Materials Research (Volume 723)
• Pages: 588-593
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.723.588
• Online since: August 2013
• Authors: Wen Ten Kuo, Chih Chien Liu, Her Yung Wang, Chun Ya Shu
• Keywords: Compressed Concrete Paving Units, Compressive Strength, Washed Municipal Solid Waste Incinerator Bottom Ash

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