Production Of Concrete Pavement Block From Demolished Fired Clay Brick Wastes

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dc.contributor.authorMohd Nadzim, Ummi Kalsum Hasanah
dc.date.accessioned2018-08-28T07:22:33Z
dc.date.available2018-08-28T07:22:33Z
dc.date.issued2011-07
dc.description.abstractConstruction industry is one of the major industries involved in country‘s development and modernization. Construction and demolition (C&D) wastes constitute a major portion of the total solid wastes production in the world, and most of them are disposed off legally or illegally in any landfills. It is estimated that 13-30% of all solid waste deposited in landfills worldwide comprises C&D waste (Bossink and Brouwers, 1996a). Another problem related to the construction industry is the shortage of natural aggregates and mass generation of fired clay bricks (FCB) from the demolition sites, thus creating environmental problems. Hence, preservation of the environment and conservation of the rapidly diminishing natural resources be the essence of sustainable development. This study emphasized on the possibilities of using FCB demolition wastes as a substitute of natural aggregates for the manufacturing of concrete pavement block. The chemical and mineralogical characterizations were carried as it would influence the concrete pavement block performance. The SEM micrograph showed that FCB aggregates possessed larger grains which promoted the coalescence of particles. In fact, the aggregates were also highly porous, non-homogenous and had flaky appearance. However, the natural aggregates either, coarse or fine, showed an angular shape, with well-defined edges at the intersection of the roughly planar faces. More crystalline with rougher texture can be observed compared to the FCB aggregates. The XRD analysis of FCB aggregates showed the presence of quartz, hematite and feldspar, while for the natural coarse and fine aggregates, pure SiO2 and CaO are dominant at 2Ɵ = 26.5 0 and 26.0 0, respectively. The major elements constituted in FCB aggregates and natural aggregates detected using XRF were SiO2, Al2O3, Fe2O3 and CaO. The concrete pavement blocks using FCB aggregates showed reduction in compressive strength, flexural strength, surface hardness and modulus of elasticity when the replacement level increased.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/6430
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectProduction of concrete pavement block fromen_US
dc.subjectdemolished fired clay brick wastesen_US
dc.titleProduction Of Concrete Pavement Block From Demolished Fired Clay Brick Wastesen_US
dc.typeThesisen_US
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