Industrial & Technology Education
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Industrial & Technology Education
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Item A Comparative Study of Compressed Earth Bricks (Ceb's) and Sandcrete Blocks for Building Construction(Nigerian Journal of Technological Research (NJTR), 2017) Kareem, W. B.; Okwori, R. O.; Kagara, A. B.; Igwe, C. O.; Ayandokun, S. T.This study examined the production and testing of sandcrete bricks and compressed earth bricks (CEB’s) with a view to comparing their strength and moisture content of materials used. Some units of sandcrete bricks and laterite bricks were made using machine vibrated sandcrete brick mould and hydraulic brick making machine respectively. The bricks were tested to determine their moisture content and compressive strength. The results obtained from the tests were compared with the specifications of Nigerian Building and Road Research Institute (2006), Nigerian Building Code (2006), and Nigerian Industrial Standards (2000). The results indicated that the compressive strength of 300x150x170 sandcrete bricks varies from.1.3 N/mm² to 2.6 N/mm², as the curing age increases from 7 to 28 days. For laterite bricks, the strength varies from 1.0N/mm² at 7 days to 2.2N/mm² at 28 days. All the bricks produced satisfied the minimum requirements in terms of compressive strength, by all available codes, but the compressive strength of sandcrete bricks is higher than the CEB's. It was concluded that sandcrete bricks have better strength compare to compressed earth brick, more so compressed earth bricks (CEB's) absorb more water than sandcrete bricks, and:‘sandcrete bricks can be use as substructure (foundation unit). It was recommended among others that sandcrete bricks should be used for foundation of a building.Item Improving Safety Procedure and Accident Prevention on Construction Sites in Abuja, Nigeria(ATBU Journal of Technology and Educational Research (JOTER), 2019) Igwe, C. O.; Kareem, W. B.; Stephen, M. D.; Nwachukwu, A. O.The study determined ways of improving safety procedure and accident prevention on construction sites in Abuja, Nigeria. Today, construction sites are considered as one of the most hazardous places in the world. The population of the study was 100 (20 professional builders and 80 building professionals). Two research questions were raised and two hypotheses were formulated that guided the study and tested at 0.05 level of significance. A twenty (20) items instrument title improving Safety procedures and Accident prevention on construction Sites (QISPAPCS) questionnaire was developed by the researcher and used for data collection. The questionnaire was validated by three specialist and. A pilot of the instrument was carried out. A reliability coefficient of 0.08 was obtained using Cronbach alpha reliability method. Data was analyzed using mean, Standard Deviations and z-test statistics. Finding revealed among other that there are seven (7) major causes of accidents at buildings construction sites, there is no significant difference between the mean ratings of professional builders and technicians on the major causes of accident at building construction sites. Based on the findings, the study recommends among others that there should be training and appointment of a resident safety personnel/manager to implement safety policies and form a motoring control system to always remind workers about personal safety responsibility at the site