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A building, once properly constructed is expected to be in use for at least its designed life span. Although every society has its own problems and Nigeria is not an exception yet the very recent challenges of buildings collapsing in various locations have been giving the various arms of government, stakeholders in the built environment and the peo...
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A built environment is an area that is created by people such as schools, homes or shops. In a built learning environment such as school, explaining complex production processes in printmaking are sometimes challenging. This challenge is as a result of the dominant learning form which has been studio based or face to face. This paper seeks to explo...
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... As reported in [3], not less than 264 deaths were recorded from about 25 cases of building collapses between 2005 and 2010. Sulymon, Bello, Dahunsi, & Nwaigwe [4] also reported 54 occurrences of building collapse in 16 states of the federation accounting for 317 deaths and several people injured between 2013 and 2017. The most prominent of the incident occurred on September 12, 2014, in which a guest house under construction within the premises of Synagogue Church of All Nations (SCOAN) in the Ikotun area of Lagos collapsed leading to death of 116 people. ...
... Many studies have investigated the causes of incessant building collapse in Nigeria. Among the factors identified include the use of substandard building materials, incompetence, poor supervision/poor workmanship, faulty structural design/ absence of structural design, carelessness, weak/faulty foundation, overloading loading, illegal conversion, noncompliance with approved building plan & disregard for building regulation/plan, hasty construction/faulty construction, ignorant/greed and corrupt tendencies etc. [4]. ...
Mechanical properties and chemical composition of some selected steel reinforcement bars used for construction works in Nigeria were investigated. Six nominal sizes of bars from four selected brands, including: Real steel reinforcing pty Limited, code name Red; Phoenix steel mills, code name White; Pulkit alloy and steel limited, code name Blue; and African foundries limited, code name Black were evaluated. The tensile test was carried out at the mechanical engineering department, University of Ilorin using Universal Testing Machine (UTM) while the chemical compositions of the steel samples were analyzed using optical emission spectrometer at the laboratory of African foundries limited, Ikorodu Lagos State. The results obtained were compared with BS 449:2005 +A3:2016 standard provision. The outcome of the study showed that 70.8 % of the tested steel bars failed the characteristic tensile strength test, though with a very good percentage elongation satisfying the required specification. Chemical composition tests revealed that most of the failed samples contained low carbon content or excess phosphorus composition plus other impurities.
