No abstract

In this paper, an investigation on the reduction of thermal conductivity in clay-based construction materials is carried out. Clay is the basic material for brick production, bagasse and perlite were additive elements in clay, which is from sugar industrial waste i.e. Bagasse and perlite, which is from siliceous volcanic rock. Bagasse facilitates the porous nature in brick and perlite consists of rich amount of Al 2 O 3 and SiO 2 , while thermal insulation properties improve inclaybased construction materials. Samples were prepared according to laboratory required dimensions of 150x100x50 mm and mixture of clay, bagasse and perlite in the different ratios with required amount of water for plasticity. Green samples' moisture content removed at atmospheric temperature until the reduction of water content. Sun-dried specimens were fired in laboratory induction furnace at the rate of 4.5 o C/m until 800 0 C. Final cured product was tested for evaluation of different properties i.e. Thermal conductivity, compressive strength, SEM-EDS and TGA. The results show that an increasing quantity of the bagasse and perlite in the clay mixture significantly decrease the thermal conductivity of clay brick, and a small reduction in compressive strength was observed.

An industrial waste removal process plays main roles in all production industries, in this paper discussed about the sugar industry waste i.e. bagasse used as fuel along with coal in thermal power plant. After combustion of Coal-Bagasse, it produces bulk amount of ash and clay from the local fire brick manufacturers and expanded perlite from the thermal insulation powders suppliers. Coal-Bagasse ash, clay and perlite were performed to brick manufacturing. These three constituents with different ratios (10:5:1) on weight basis, mix properly with little addition of water for required plasticity. This mixture poured into moulds for required shape of sample (120mmx60mmx50mm) according to the laboratory requirements. Prepared samples were dried in atmosphere until the removal of wet content in samples. For final curing, dried samples heated in electrical furnace, at different temperature ranges. Scanning Electron Microscope with Energy Dispersive Spectrum (SEM-EDS) was performed to study the microstructures and chemical composition (on mass & weight basis) of samples, Thermo gravimetric-Differential Thermal Analysis (TG-DTA) to study the variation in mass of samples at different temperatures with respective time. The result shown maximum weight loss obtained at more quantity of coal, high compressive strength and low thermal conductivity at more amount of clay-bagasse ash.