World Academy Of Science, Engineering And Technology

 Journal

 Assessment Of Health And Safety Item On Construction Sites In Ondo State

 Ikumapayi Catherine Mayowa

 2015

Abstract—The well been of human beings on construction site is very important, many man power had been lost through accidents which kills or make workers physically unfit to carry out construction activities, these in turn have multiple effects on the whole economy.Thus it is necessary to put all safety items and regulations in place before construction activities can commence. This study was carried out in Ondo state of Nigeria to known and analyse the state of health and safety of construction workers in the state. The study was done using first hand observation method, 50 construction project sites were visited in 10 major towns of Ondo state, questionnaires were distributed and the results were analysed. The results show that construction workers are being exposed to a lot of construction site hazards due to lack of inadequate safety programmes and nonprovision of appropriate safety materials for workers on site. From the data gotten for each site visited and the statistical analysis, it can be concluded that occurrence of accident on construction sites depends significantly on the available safety facilities on the sites. The results of the regression statistics show that the level of significant of the dependence of occurrence of accident on the availability of safety items on site is 0.0362 which is less than 0.05 maximum significant level required. Therefore a vital way of sustaining our building strategy is by given a detail attention to provision of adequate health and safety items on construction sites which will reduce the occurrence of accident, loss of man power and death of skilled workers among others. 

 Organisation For Women In Science For Developing World In Conjunction With Federal University Of Technology, Akure, Nigeria

 Conferenceproceeding

 OPTIMISATION OF CONCRETE MIX PROPORTIONS THROUGH THE AGGREGATES PARTICLE PACKING

 Ikumapayi, C. M., And Arum, C.

 2015

Sustainable development has become a set of self-evident rules. It has been estimated that the production of each ton of cement generates approximately one ton of carbon dioxide into the atmosphere which in turn contributes to global warming. This research work investigates how cement can be reduced in the production of concrete without altering the required properties of concrete, by tightly packing different particles, usually aggregate of different sizes, together. A total of 105 cubes were cast, cured at ages of 7 days, 14 days, 21 days, and 28 days and were subsequently crushed to obtain their compressive strength. At 7 days of curing some cubes were placed in the oven for 35 days and the shrinkage was measured at intervals of 14, 21, 28 and 35 days. After 35days in the oven the cubes were crushed in order to check the effect of shrinkage on the strength of the concrete. Two class sizes of aggregate were varied together in various roportions and mixed together with cement paste. The results of the various tests show the effect of mix proportion on the compressive strength and drying shrinkage of concrete with; thus the mix (Mix E) consisting of 40% of 19mm and 60% of 10mm aggregate have the highest compressive strength of 18.15N/mm2at 28 days, a high packing density of 0.986 and also a minimal drying shrinkage of 5 10-6mm3. 

 IOS Press, 2014

 Conferenceproceeding

 Assessment Of The Involvement Of Qualified Professionals In Building Supervision In Nigeria: Lagos And Ondo States As Case Studies

 Catherine Mayowa IKUMAPAYI, Chinwuba ARUM And Reuben P. OMALE

 2014

This research evaluates the involvement of qualified building professionals in building construction in Nigeria. Two methods were used in collecting the data used for the analysis. The data were collected by direct visitation to ongoing building sites and obtaining information through direct interaction with them. Secondly, questionnaires were administered to the contractors on different building sites to ascertain their view on the subject. The study revealed that less than 20% of building sites investigated involved qualified professionals (Architects, Engineers, Quantity Surveyors and Town Planners) in the supervision. Therefore it is recommended that there should be public awareness that qualified professionals on building construction sites are as important as the acquisition of the land for the building. These professionals should also be involved from onset of the construction. Furthermore, strict adherence to best practices in the production of Architectural and Structural drawings as well as Bill of Quantities should be ensured before the approval of building plans in the various relevant ministries. 

 Globeedu Group

 Journal

 Compressive Strength Of Interlocking Mortar In Masonry Walls

 C. Ikumapayi And J.O Afolayan

 2014

Several past researches have shown that the compressive strength of sandcrete blocks in masonry walls is far below the recommended value in the codes. Considering the rampant reports of failure of buildings with masonry units, it is of interest to investigate the contribution of the interlocking mortar. Thus, this paper presents the results of the tests on the compressive strength of interlocking mortar for masonry wall panels in Akure metropolis of the south-western of Nigeria with a view to establishing the source of integrity of masonry walls. A total of twenty-five building sites were visited in the metropolis. Mortar samples were collected randomly from each site. Nine mortar samples of 50 mm × 50 mm × 50 mm were moulded from each site and crushed at 7, 14 and 28 days. A total of two hundred and twenty five samples of mortar were collected for compressive strength test. The results show that the collected mortar samples have an average compressive strength of 0.96 N/mm2 at 7days, 1.23 N/mm2 at 14days and 1.43 N/mm2 at 28days, which are far greater than 0.55 N/mm2 and 0.45 N/mm2 obtained for the compressive strength of 450 mm × 150 mm × 225 mmand 450 mm × 225 mm × 225 mm sandcrete hollow blocks respectively, reported elsewhere (e.g., Afolayan et al., 2008) for the same metropolis. The compressive strength of mortars varies from site to site and the values for mortars sampled from private building sites differ significantly from those from the public buildings. hollow blocks 

 School Of Environmental FUTA

 Others

 APPRAISAL OF THE INFRASTRUCTURE AND PHYSICAL DEVELOPMENTS IN THE FEDERAL UNIVERSITY OF TECHNOLOGY, AKURE, NIGERIA (2007-2011)

 Reuben Peters Omale And Catherine Mayowa Ikumapayi

 2014

Universities in Africa today have a great challenge of matching up the ever-increasing students’ population with basic infrastructure and physical developments especially in third world countries where resources are meagre in an unstable economy. This is study reviews the achievements of the FUTA University’s management in terms of physical developments in the last five years. Achievements such as these cannot be overemphasized, as they are visible all around the present Obanla campus. Over a kilometre of road has either been built from scratch, surface dressed, opened up or patched up and about twenty-five building structures have been erected between February 2007 and February, 2012, from office buildings to laboratories, lecture theatres and hostels. The methodology involved gathering of data from the Physical Planning Unit, which was very instrumental to the realization of these devel- opments. The Federal Government as well as prominent good spirited Nigerians were also key players in terms of funding of these Capital Intensive Projects, the University Management intervened also in actualizing a number of projects with its Internally Generated Revenue (IGR). Data gathered were analysed and possible reasons for the fluctuation of the number of construction projects awarded was explained. The paper concluded by appraising the laudable achievements of a dodged team and exemplary leadership whose vision of making FUTA one of the leading Universities of Technology in the World was never wavered in the last administration’s years. 

  School Of Environmental Technology, Federal University Of Technology, Akure

 Others

 DEVELOPMENT OF HIGH PERFORMANCE CONCRETE FOR THE CHALLENGES OF MODERN CIVIL INFRASTRUCTURE

 Catherine Mayowa Ikumapayi And Chinwuba Arum

 2014

The ever-growing development of civil infrastructure has continued to impose more and more stringent require- ments on the concrete to be used. In this respect, high performance concrete (HPC) has proved to be more appro- priate for the needs of modern infrastructure than high strength concrete (HSC). This paper examined recent research works on HPC and highlighted how conventional concrete technology can be reformed into modern concrete science by incorporating new particle packing theory, aggregate treatment, and the concept of green concrete. These new technologies allow for the optimization of the mix design, in order to reduce cement content, reduce embodied energy, and permit quicker response to variation in the quality of constituent materials during production. 

 NIL

 Journal

 Ashes Of Biogenic Wastes-Pozzolanicity, Prospects For Use And Effects On Some Engineering Properties Of Concrete, Materials Science

 Chinwuba Arum And Catherine M. Ikumapayi

 2013

NIL

 

 Scholarlink Research Institute

 Journal

 Effects Of Oil Palm Fibre On The Compressive Strength Of Mortar

 Ikumapayi C. Mayowa And Arum Chinwuba

 2013

Compressive strength development of mortar cube reinforced with Oil Palm Fibre (OPF) cured in water was investigated at different ages, using water /cement ratio of 0.5 and mix ratio of 1:6. OPF was introduced into the mortar at 0.2 %, 0.4 %, 0.6 %, 0.8 % and 1% by weight of cement. The results of the tests conducted show that 0.6% is the optimal Oil Palm Fibre level both at 7 days and 28 days with compressive strengths of 1.4 N/mm2 and 1.7 N/mm2 respectively. These values are higher than the values for the control mortar mix for which the 7 days and 28 days compressive strengths were 1.2 N/mm2 and 1.4 N/mm2 respectively. These results show that 0.6 % is the most effective additive level of Oil Palm Fibre to mortar for greatest increase in compressive strength. This additive level of Oil Palm fibre as Self Compacting Mortar could satisfactorily replace concrete in area of repair and retrofit in concrete structures. 

 NIL

 Disertations

 Assessment Of Quality Of Sandcrete Blocks In Selected Cities In Ondo State

 NIL

 2009

NIL

 

 NIL

 Journal

 Characterisation Of The Compressive Strength Of Sandcrete Blocks In Ondo State, Nigeria,

 Afolayan J.O, Arum C., Daramola C.M

 2008

NIL