PERFORMANCE EVALUATION OF COMMERCIAL SANDCRETE BLOCKS PRODUCED IN IDU DISTRICT, ABUJA
Abstract
This study evaluated the performance of commercially produced sandcrete hollow blocks in Kaura District, Nigeria. A total of one hundred and eighty (180), nine (9) inch sandcrete hollow blocks from ten randomly selected manufacturers were collected and subjected to compressive strength and Durability test, for compliance with existing standards: Nigerian Industrial Standard, Nigerian Building Code and British Standard. The blocks were cured using the sprinkling method at 7, 14, 21, and 28 days. The average dry density of hollow sandcrete blocks from the different factories after 28 days is 1837 Kg/m³, which were within the value specified by BS 2028 (1968) and NIS 87 :2000. The compressive strength of hollow sandcrete block samples ranges from 2.93 N/mm2 to 0.61 N/mm2. Results indicated that only 22.5% of commercially produced blocks in the Idu District of Abuja meet the minimum specification of 2.5 N/mm² for non-load bearing as specify in Nigeria Industrial Standard NIS 87 (2000) and 100% of the block produced by the factories do not meet the 3.45 N/mm² NIS requirement for load loading. According to test results, the total water absorption of all block samples that were collected was less than the BS 5628 maximum value of 7% and less than the NIS standard's 12% requirement. This study indicates that all of the hollow sandcrete blocks that were examined are considered to be of low porosity. This study recommended that manufac
KEYWORDS: Sandcrete Blocks, Compressive Strength, Durability, Quality
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Agbi, G. G., Akpokodje, O. I., & Uguru, H. (2020). Compressive strength of commercially produced sandcrete blocks within Isoko Metropolis of Delta State. Nigeria Turkish Journal of Agricultural Engineering Research, 1(1), 91-103.
Aiyewalehinmi EO and Tanimola MO (2013). Strength properties of commercially produced sandcrete blocks in Akure: Onda State. International Journal of Engineering Science Invention, 2(5): 22-33
Akpokodje, O. I., Agbi, G. G., Uguru, H., &Nyorere, O. (2021). Evaluation of the compressive strength of commercial sandcrete blocks produced in two metropolises of Delta State, Nigeria. Applied Journal of Physical Science, 3(2),61-71
British Standard Institution (1985). BS 3921: Precast concrete masonry units. London, England
British Standards Institution (1970). Precast Concrete Blocks. BS 2028,1364: BSI, London, England
British Standards Institution (1981). Precast concrete masonry units. Part 1 Specifications for precast concrete masonry units. BS 6073: Part 1: 1981. BSI. London, England.
Ewa, D. E. & Ukpata, J. O. (2013). Investigation of the compressive strengths of commercial sandcrete blocks in Calabar Nigeria. International Journal of Engineering and Technology, 3(4), 477-482
FAO (1988). Farm structures in tropical climates. Lennart P. Bengtsson LP, James H. Whitaker (eds.). Food and Agricultural Organisation.
Ibrahim, M., & Amana Ocholi. (2020). Effect of partial replacement of cement with metakaolin on the durability of hollow sandcrete blocks. Nigerian Journal of Engineering, 27(1), 6–11.
Jackson, N., Dhir, R. K. (Ed). (1996). Civil Engineering Materials. 5th Edition.
Keralli, A. G. (2001). Durability of Compressed and Stabilized Building Blocks, A Ph.D. Thesis, University of Warwick, Department of civil and construction Engineering.
Madandoust, R., & Mousavi, S. Y. (2012). Fresh and hardened properties of self-compacting concrete containing metakaolin. Construction and Building Materials, 35, 752–760. https://doi.org/10.1016/j.conbuildmat.2012.04.109
Nene R (2009). Determination of compressive strength of nine inches hand moulded sandcrete block. A Higher National Diploma project presented to the Department of Civil Engineering Kaduna Polytechnic.
Neville, A. M. (2011). Properties of Concrete. Pitman Publishing.
Nigerian Building Code (2006). The National Building Code of federal Republic of Nigeria. Nigerian Building Code, 1st Ed, Lexis, Nexis, Butterwoths. South Africa
Nigerian Industrial Standard, NIS 87:2004: Standard for sandcrete blocks. Lagos, Nigeria: Standard Organization of Nigeria.
Nigerian Industrial Standard, NIS 87:2004: Standard for sandcrete blocks. Lagos, Nigeria: Standard Organization of Nigeria.
NIS 87 (2000). “Nigerian Industrial Standard: Standard for Sandcrete Blocks”, Lagos, Nigeria, Standards.
NIS. (2007). Standard For Sandcrete Blocks. The Nigerian Industrial Standard. (Vol. NIS 87, 2). Lagos: Standard organization of Nigeria.
?Odeyemi SO, Akinpelu MA, Atoyebi OD and Orire KJ (2018). Quality assessment of sandcrete blocks produced in Adeta, Kwara state, Nigeria. Nigerian Journal of Technology, 37(1): 53-59
Omopariola, S. S. (2014). An Evaluation of Durability of Hollow Blocks in Idiroko Area of Nigeria Research Journal in Engineering and applied Science, 3 (1): 50 - 54.
Onwuka DO, Osadebe NN and Okere CE (2013). Structural characteristics of sandcrete blocks produced in South-East Nigeria. Journal of Innovative Research in Engineering and Science, 4 (3): 483-490.
?Rigassi, V. (1995). Compressed earth block: manual of production, Volume I. Manual of production, CRATerre-EAG, Brauschweig, Allemagne: Friedrich Vieweg & Sohn.
Yusuf A, Aminulai HO, Abdullahi A, Alhaj IB and Alalade AI (2017). Dimensional compliance and compressive strength of sandcrete hollow blocks produced in Minna Metropolis. 2 nd International Engineering Conference (IEC 2017) Federal University of Technology, Minna, Nigeria
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