SURFACE BLAST-CLEANING WASTE AS A REPLACEMENT OF FINE AGGREGATE IN CONCRETE

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Architecture, Civil Engineering, Environment

Silesian University of Technology

Subject: Architecture, Civil Engineering, Engineering, Environmental

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ISSN: 1899-0142

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VOLUME 10 , ISSUE 3 (September 2017) > List of articles

SURFACE BLAST-CLEANING WASTE AS A REPLACEMENT OF FINE AGGREGATE IN CONCRETE

Wojciech KUBISSA / Roman JASKULSKI / Tamás SIMON

Keywords : Sustainable development, Waste utilization, Fine aggregate, Copper slag, Concrete, Recycled materials

Citation Information : Architecture, Civil Engineering, Environment. Volume 10, Issue 3, Pages 89-94, DOI: https://doi.org/10.21307/acee-2017-038

License : (BY-NC-ND 4.0)

Published Online: 28-August-2018

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ABSTRACT

In the article the possibility of using a surface blast-cleaning waste as a replacement of fine aggregate in concrete manufacturing was presented. Concretes with w/c ratio 0.6 and 300 kg/m3 dosage of cements: CEM I 32.5R and CEM II/B-V 32.5N were tested. The quite high value of the w/c ratio resulted in good compactibility of the mixtures without use of plasticizer. The replacement rate of the fine aggregate (0–2 mm) with copper slag (CS) was 33%, 66% and 100% respectively. Concretes of the same composition served for reference except for with river sand as fine aggregate instead of slag. The performed tests focused on: compressive and tensile strength (both after 28 days), sorptivity, free water absorption capacity and abrasion resistance. The obtained results showed that the strength and some other tested properties of concretes with copper slag as sand replacement were similar or even better than that of the control mixtures.

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