Abstract— The production of lightweight material using bottom ash (BA) generated from industrial factories has received further attention because of the economical use of naturally existing raw materials, reuse of waste material, and energy saving approach. In order prevent disposal of waste BAs and turn these wastes into usable construction materials, the study consists of two steps. The pumice-based lightweight materials were produced using the BAs supplied from Bor Sugar Factory and Göknur Foodstuff Co. Nigde Factory sieved through 0.5 mm square mesh sieves in the first and the second steps, respectively. Considering CC-40 and CC-80 concrete classes, mixing that depends on volume basis was applied to the samples since specific bulk densities of the coal BAs and pumices were different from each other. Fine aggregates of the BAs in the volume ranges of 0-25-50-75-100% were displaced with those of the pumice. ÇİMSA CEM I type Portland cement was used. 28 day-axial compressive strengths, specific bulk densities, water absorption percentages, porosities and axial compressive strengths loss percentage after the freezing of the samples that were applied to cure conditions at different mixing ratios were measured from 4.1 to 5.2 MPa for CC-40 and 8.5 to 11.7 MPa for CC-80; from 0.89 to 1.05 g/cm3 for CC-40 and 0.92 to 1.05 g/cm3 for CC-80; from 42.5 to 46.9 for CC-40 and 34.1 to 45.1 for CC-80; from 40.1 to 43.0 for CC-40 and 33.2 to 40.7 for CC-80 and from 10 to 25 for CC-40 and 15 to 20 for CC-80, respectively.
Keywords— coal bottom ash, environment, lightweight construction material, Niğde, pumice, reuse, Turkey.
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