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  • Utilization of municipal solid waste bottom ash and recycled aggregate in concrete
    Jurič, Bernardka ...
    In the combustion process of municipal solid waste (MSW), bottom ash (BA) represents the major portion of the solid residue. Since BA is composed of oxides, especially SiO2 and CaO, the feasibility ... of its application in concrete as a substitute for cement was tested. It was found that at the age of 28 days, the flexural and compressive strengths of the binder linearly decrease at the rate of 0.03 and 0.02 MPa per wt% of BA in the binder, respectively. According to the results it may be recommended to replace up to 15 wt% of cement by BA and to use such binder where a low strength of concreteelements is required. Furthermore, the aggregate used for low strengthconcrete need not be of a very good quality. Therefore, gravel aggregate was partially replaced by recycled aggregate (RA). Consistency measured by slump was significantly reduced (>50%) when BA or/and RA were introduced into the mixture. However, concrete density and compressive strength were not affected and were 2300 kg/m3 and 40 MPa, respectively.
    Vir: Waste management. - ISSN 0956-053X (Vol. 26, iss. 12, 2006, str. 1436-1442)
    Vrsta gradiva - članek, sestavni del
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 10812438

vir: Waste management. - ISSN 0956-053X (Vol. 26, iss. 12, 2006, str. 1436-1442)
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