Assessment of Concrete Elements of A Collapsed Building Using Ultrasonic Pulse Velocity Test

Check here for full article:

International Journal of Recent Engineering Science (IJRES)

Authors:

Timothy Danjuma, Aliyuda Yohanna Adamu, Mbimda Ali Mbishida, Benjamin Yusuf Mailafiya

Abstract: 

Some ugly trends have bedeviled the construction industry in Nigeria for about a decade now that includes building collapse. One of these incidences that occurred in 2018 is the catastrophic collapse of the hall/office complex of the Nigerian Medical Association. This research present the findings from the Ultrasonic Pulse Velocity Test (UPVT) carried out on the concrete elements of the collapsed building with the sole purpose for prognosis, diagnosis and quality control by the Nigerian Building and Road Research Institute (NBRRI) and other relevant stake holders in the construction industry. The results of the UPVT on all the beams and slabs showed that the quality of the concrete is quite below the recommended standard of 3.0km/s. The UPVT performed on the selected ground floor columns were found to be good as the Pulse Velocity (PVs) were averagely more than 3.5 km/s. However, the part of the column below the ground floor level is doubtful (PV<3.0 km/s). These clearly shows that the columns above the ground floor level are good, but those below are the suspected cause of the collapse.

Keywords

Building Collapse, Concrete Quality, Ultrasonic Pulse Velocity

Reference

[1] J. A. Fadamiro, An assessment of building regulations and standards and the implications for buildingcollapse in Nigeria. Proceedings of a workshop on building collapse: causes, prevention and remedies. The Nigeria institute of building, Ondo, Nigeria, (2002) 23-30.

[2] A. N. Ede, Building Collapse in Nigeria: the trend of casualties in the last decade (2000-2010). International Journal of Civil and Environmental Engineering, 10 (6) 2010 32-33.

[3] A. Maryoto, H. L. Ay, N. W. Gunawan, The Live Load Capacity of Rectangular Precast Reinforced Concrete Stick Plates, International Review of Civil Engineering (IRECE), 9 (5) (2018) 174-180.

[4] O. Joshua, K. O. Olusola, C. Ayegba, and A. I. Yusuf., Assessment of the Quality of Steel Reinforcement Bars Availablein Nigerian Market, Conference Proceedings of the Architectural Engineering Institute (AEI) of the American Society of Civil Engineers (ASCE), Theme: Building Solutions for ArchitecturalEngineering. Pennsylvania, USA, (2013) 295 – 304.

[5] O. Joshua, K. O. Olusola, K. D. Oyeyemi, A. O. Ogunde, A. O., Amusan, L. M., D. O. Nduka, and J. Abuka-Joshua, Data of the properties of rebar steel brands in Lagos, Nigerian market used in reinforced concrete applications. Data in brief, (2018) 1428-1431.

[6] O. Joshua, K. O. Olusola, K. D. Oyeyemi, A. O. Ogunde, A. O., A. N. Ede, P. F. Tunji-Olayeni., Assessment of the Utilization of Different Strength Classes of Cement in Building Constructions in Lagos, Nigeria, International Journal of Civil Engineering and Technology

(IJCIET), 8(9) (2017) 1221-1233.

[7] K. O. Olusola and O. Joshua, Effects of Nitric Acid Concentration on the Compressive Strength of Laterised Concrete, Civil and Environmental Research. 2(10) (2012) 48-57.

[8] K. P. Dimuna., Incessant Incidents of Building Collapse in Nigeria: A Challenge to Stakeholders. Global Journal of Researches in Engineering ., 10 (4) (2010) 75-84.

[9] A. Amadi, C. Eze, C. Igwe, I. Okunlola, N. Okoye., Architect’s and Geologis’s view on the causes of building failures in Nigeria. Modern Applied Science, 6(6) (2021) 31.

[10] A. Taiwo and J. A. Afolami., Incessant building collapse: A case of hotel in Akure, Nigeria, Journal of Building Appraisal, 6 (2011) 241-248.

[11] G. E. Oseghale, I. I. Ikpo, & O. D. Ajayi., Causes and Effects of Building Collapse in Lagos State, Nigeria. Civil and Environmental Research, 7(4) (2015) 34–43.

[12] P. A. Adebowale, M. D. Gambo, I. A. Ankeli, & I. D. Daniel., Building Collapse in Nigeria: Issues and Challenges, International Journals of Art and Sciences, (2016) 99–108.

[13] F. B. Alamu and M. S. Gana, An Investigation on The Causes of Building Collapse in Nigeria, International Journal of Environmental Sciences and Resources Management, (2014) 12-22.

[14] A. Lorenzi, F. T. Tisbierek, and L. F. Silva, L. C. Pinto., Ultrasonic Pulse Velocity Analysis in Concrete Specimens, IV Conferencia Panamericana de END Buenos Aires – Octubre, (2007).

[15] A. N. Neville., Properties of concrete, 5th edition, New York, (2000).

[16] BS 1881 – 203: Testing Concrete: Recommendation for Measurement of Velocity Ultrasonic Pilses in Concrete, British Standards Institution, (1986).