http://www.iaeme.com/IJCIET/index.asp 1221 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 9, September 2017, pp. 1221–1233, Article ID: IJCIET_08_09_137 Available online at http://http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=8&IType=9 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed ASSESSMENT OF THE UTILIZATION OF DIFFERENT STRENGTH CLASSES OF CEMENT IN BUILDING CONSTRUCTIONS IN LAGOS, NIGERIA Joshua, Opeyemi Department of Building Technology, Covenant University, Ota Olusola, Kolapo O Department of Building, Obafemi Awolowo University, Ile-Ife Ogunde, Ayodeji O Department of Building Technology, Covenant University, Ota Amusan, Lekan M Department of Building Technology, Covenant University, Ota Ede, Anthony N Department of Civil Engineering, Covenant University, Ota Tunji-olayeni, Patience F Department of Building Technology, Covenant University, Ota ABSTRACT Building collapse in Nigeria is so rampant now to the extent that it’s gradually not becoming a news when one occurs. Several factors being attributed as the cause of building collapses are based on opinions and in some cases based on investigative reports of selected buildings collapse. These factors are speculative since some intrinsic properties of debris materials tested during the investigation of selected collapse might be lost due to the impact of the collapse as a result of falling from great height and other debris falling on the tested material that these properties were intact before the collapse. Also, since the major causes of collapse in Nigeria is mostly attributed to poor construction process and the use of substandard material, this study assesses the quality of cements used in some selected sites and freshly produced cement from factory to compare with relevant standards, it also assesses the level of knowledge of the Nigerian construction professional using these cements to measure its applications. It was found out that the cements used in these selected sites were not all to standard even though all the freshly purchased cements met the required standard, this indicates that other factors might be responsible for the drop in