Construction Management Assignment | Research Methodology
Added on 2020-05-16
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Data Science and Big DataPhilosophy
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Research Methodology 1RESEARCH METHODOLOGYBy NameMasters of Construction ManagementInstructorInstitutionLocationDate
Research Methodology 2TITLE: EFFECT OF WASTE GLASS POWDER IN THE WET AND MECHANICAL PROPERTIES OF CEMENTSection 1: Research aim(s), rationale and objectivesThis research aims at:Establishing the compressive strength of concrete when ground glass powder at 10%, 20%, 30% and 50% proportions is used in place of sand as the fine aggregate and the point of achieving maximum strength of the concreteRationale of the researchSince its inception into the world more than 5000 years ago, glass has remained one of the valuable materials that are still being used by the human kind to meet various needs. As more and more of the material is being manufactured, used, damped, and bearing its non-biodegradability glass remained to be a threat to environmental stability and harm to the ecosystem[CITATION And09 \p 167 \l 1033 ]. Most of the ground glass ended up at landfills where they could take several years to break further into smaller particles. This led to the need to establish strategies and mechanisms that would help combat the mess.Ground glass has therefore been incorporated as a component of the fine aggregates that are usedin the manufacture of concrete bearing the heavily consumption of concrete and concrete products across the globe. Glass contains silica, which reacts with the cement to generate the required compressive strength of concrete. This puts the material at a good position as far as its incorporation into the construction industry is concerned[CITATION Ale132 \p 205 \l 1033 ]. Contractors and countries that have attempted to deploy this technology in the construction of
Research Methodology 3various structures confirm improved workability and compressive strength of the concrete that is made by mixing cement and ground glass powder as the fine aggregate. The strength and workability if found to record a better performance than plain mortar.By using ground powder mortar as the fine aggregate in the making of concrete, a number of benefits are accrued. The process has a positive impact on the environment. The ground glass powder is derived from the remains of used or old glass that are no longer usable for the initially intended purpose. This in turn relieves the landfills of the huge deposits of the non-biodegradablesubstance[CITATION Don09 \p 111 \l 1033 ]. The overall effect is therefore withdrawal of waste products from the environment and hence improved environmental sustainability. This would be an impact to both the users and non-users of the concrete. The use of ground glass powder in the preparation of concrete also lowers the amount of carbon dioxide that is emitted during the preparation process. Ground powder, unlike sand, contains fewer chemicals whose reactions would release carbon dioxide. Ground glass as a fine aggregate in the preparation of concrete is associated with lowered production costs. Being collected from a damp site, the ground powder is used at point when its worth is least. The contractor would only need to have the material transported to the construction site as the only cost when it comes to the acquisition of the aggregates. This is a subsidy in comparison to the contemporary cases where the contractor has to make billings for sand. The use of ground glass powder as an aggregate in the preparation of concrete can thus be concluded to be cost-effective, reducing the overall cost of doing a project in construction[CITATION Con16 \p 189 \l 1033 ].
Research Methodology 4Despite the overwhelming benefits associated with the use of ground glass powder in the preparation of concrete, it has not yet been established the point at which concrete gains maximum compressive strength when ground glass powder is used instead of sand[CITATION Kar161 \p 252 \l 1033 ]. This uncertainty has seen numerous contractors and other professionals in the construction industry end up with undesired structures due to either under or over estimation of the amount of ground powder to be used. Research and experiments conducted have established that as the proportion of ground powder is increased from 15% to 20% of the weight, the concrete gains more compressive strength. The researcher further reveals that when more the glass aggregate is used i.e. more than 30%, the compressive strength of the concrete is found to lose the gained strength at 20% proportionality[CITATION Joh124 \p 564 \l 1033 ]. The concrete is found to lose the strength to the level of the contemporary concrete. Away from such a finding is another that established that the compressive strength of concrete remains on the rise up to and including 50% proportionality beyond which the concrete would experience bleeding of the mix and severe segregation especially when admixtures are added. Such findings have left a gap of knowledge as to the exact proportion of ground glass powder that needs to be mixed with cements in order to achieve the maximum compressive strength of the final concrete. Each findings and study tends to present conflicting findings on the same research topic with neither of the findings tending to be close to another in terms of the statisticaldata they offer. This research project thus is aimed at exploring exhaustively and comprehensively these pieces of evidence supporting the use of prefabrication technology against the conventional technological system[CITATION Hen094 \p 254 \l 1033 ].
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