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Title of article :
Addition of bottom ash from biomass in calcium silicate masonry units for use as construction material with thermal insulating properties
Author/Authors :
Carrasco-Hurtado، نويسنده , , B. and Corpas-Iglesias، نويسنده , , F.A. and Cruz-Pérez، نويسنده , , N. and Terrados-Cepeda، نويسنده , , J. and Pérez-Villarejo، نويسنده , , L.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
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Abstract :
This paper studies the effect of adding bottom ash from the combustion process of biomass plants to calcium-silicate samples for use as construction material with thermal insulating properties. a process of physical, chemical and mineralogical characterization of the raw materials, calcium-silicate samples were manufactured by mixing bottom ash (CF) with different sources of lime (calcium oxide-OC and calcium hydroxide-HC) and Portland cement (CM). The amount of bottom ash added ranged from 10% to 90% of the dry weight of the mixtures. perimental program included a wide range of testing methods of the developed material such as water absorption, mechanical strength, porosity, microstructure, freeze–thaw and thermal conductivity. timal values are those containing a 1:1 ratio of SiO2/CaO, with compressive strength ranging from 25.21 MPa (CF/HC) to 61.11 MPa (CF/CM) and thermal conductivity from 0.564 W/m K (CF/OC) to 0.773 W/m K (CF/HC). The initial results obtained make it possible in principle to obtain calcium-silicate samples with low thermal conductivity according EN standard 771-2:2011.
Keywords :
Building material , thermal conductivity , BIOMASS , Calcium silicate samples , bottom ash
Journal title :
Construction and Building Materials
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