ASSESSMENT OF REINFORCED CONCRETE MATERIALS WASTAGE IN BUILDING CONSTRUCTION SITES IN ABAKALIKI, NIGERIA

Author: Nwekete Chinaza Jonathan
Department: Building
Affiliation: Nnamdi Azikiwe University Awka

The purpose of the study is to identify the management of structural materials and how to minimize wastage in building construction sites in Abakaliki, Ebonyi State. The study was guided by four objectives and corresponding research questions. Literatures that related to the study were reviewed. Survey research design was used for the study. In order to collect data, a questionnaire designed on four points rating scale was used. The questionnaire was administered to 200 supervisors in building sites in eight selected locations within Abakaliki the State capital. The questionnaire was validated by six lecturers. Mean score index used to rank and analyse the opinion of the respondents, while Relative Importance Index (RII) was used to rank and analyze the reduction of waste on building construction site. Chisquare was used to test the first three hypotheses while Cramer’s V (V) tested them further for confirmation or otherwise. One-way ANOVA was used to test the last three hypotheses, where it was determined whether there is any significant difference between the opinions of the three categories of the grouped respondent.om the study. The study revealed that the reinforced concrete material wastage in building sites include; concrete, aggregates, blocks, timbers, reinforcement bars, cement, water and paints, while causes of structural material wastage in building site include; poor site planning, lack of adequate material management, poor craftsmanship, and the control measure to reduce material wastage such as; employment of skilled workmen. Based on the Findings, the research recommended that: Quantity and quality of reinforced concrete materials to be used should be precisely specified, the standard size of materials to be used should be taken into account to avoid unnecessary cutting in the site, those involved in material control should be properly trained and motivated in order to ensure effective handling of materials in building construction site.

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