EUSpace Collection:
http://repository.elizadeuniversity.edu.ng/jspui/handle/20.500.12398/22
2023-08-30T04:29:27ZEvaluation of Cow Bone Ash (CBA) as Additives in Stabilization of Lateritic and Termitaria Soil
http://repository.elizadeuniversity.edu.ng/jspui/handle/20.500.12398/1295
Title: Evaluation of Cow Bone Ash (CBA) as Additives in Stabilization of Lateritic and Termitaria Soil
Authors: Ariyo, Adanikin; Ajayi, Joseph; Busari, Ayobami; Fakorede, Ebenezer; Fase, Temidayo
Abstract: Continual pavement distresses on Nigerian highways, as well as environmental contamination from abattoir solid wastes such cow-bones have been a major concern. This study examined the usage of additives in stabilizing weak soils and enhancing their geotechnical properties utilizing Cow Bone Ash (CBA) on lateritic and termitaria soils. The following engineering confirmatory tests were carried out on the samples: compaction test, unconfined compressive strength (UCS) and California bearing ratio (CBR) test. CBA at 2%, 4%, 6%, 8%, and 10% were added to the soil samples. The study revealed that for lateritic and termitaria soils, the maximum amount of CBA that would allow for an increase in soaked CBR value was at 6% and 8%, respectively, while for the unsoaked CBR, the peak values was obtained at 8%. Also, the addition of CBA increased the UCS of both soil samples. The addition of CBA resulted in decreasing optimum moisture content (OMC) for termitaria soils as its pore spaces are filled up by the CBA while for the lateritic soils, increase in CBA resulted in increased OMC values. Also, the addition of CBA to both soil samples resulted in an increase in maximum dry density (MDD) values. The study revealed that termitaria soils have higher strength than the lateritic soils due to higher cohesiveness within its pore structure, lower OMC, higher MDD, UCS, and CBR values. The study concludes that the use of CBA to a maximum of 8% as an additive in stabilization of lateritic and termitaria soils is effective and therefore recommends its use in light and medium trafficked roads.
Description: Staff Publication2021-01-01T00:00:00ZQuality Assurance of Available Portland Cements in Nigeria
http://repository.elizadeuniversity.edu.ng/jspui/handle/20.500.12398/1184
Title: Quality Assurance of Available Portland Cements in Nigeria
Authors: Ikumapayi, Catherine Mayowa; Oluwabusuyi, Fakorede Ebenezer
Abstract: increment in manufacturers to be had in our day. These in turn amongst others have brought about failure of buildings and other construction members. As a result, the need to ensure the quality of available cement in circulation is of utmost paramount. This research work studies the available Portland lime cement of grade 42.5 only, in Nigeria from such company as company A, company B, and company C. The qualities and properties of the Portland lime cement from every of the above-named companies were investigated and as compared. Properties like Fineness, Setting Time, Chemical composition, Specific gravity, Consistency, Loss of ignition, Strength (compressive strength, and flexural strength), Micro structural analysis were determined according to relevant BS EN 197-1 (2011) and (ASTMC) 150-92 standards. These tests were carried out with the usage of scanning electron microscope, X-ray fluorescence spectrometer, Vicat apparatus, compressive strength machine, consistency apparatus and Chatelier flask, among others. The results showed that the chemical composition mostly of CaO, SiO2, AL2O3 and MgO in the cement +are within the acceptable limit of 60.0-67.0, 17.0-25.0, 3.0-8.0 and 0.1-4.0 respectively in the BS 4550: Part 3 (1979). The results of the compressive strength acquired for all the cement have been a way beneath the standardized result expected for grade 42.5. These could partly be traced to the cement micro-structure as Company C with the best morphology exhibits better compressive strength than others. Improvement on the cement morphology by the manufacturers could lead to compressive strength improvement. It was also discovered that one of the important factors that would have contributed to the low compressive strength was excessive amount of silt/clay content material inside the sand used.
Description: Staff Publication2019-01-01T00:00:00ZCOVID-19 and E-Learning: Nigeria Tertiary Education System Experience
http://repository.elizadeuniversity.edu.ng/jspui/handle/20.500.12398/1063
Title: COVID-19 and E-Learning: Nigeria Tertiary Education System Experience; COVID-19 and E-Learning: Nigeria Tertiary Education System Experience
Authors: Adeoye, I. A.; Adeoye, I. A.; Adanikin, A. F.; Adanikin, A. F.; Adanikin, Ariyo; Adanikin, Ariyo
Abstract: Globally, the world is faced with the COVID-19
pandemic which has held the economy at ransom not exempting
the educational sector. This pandemic has brought about recent
changes and disruptions in the educational sector which serves as
a catalyst for the development of any nation. Educational sector
globally is seen to be shifting towards e-learning in order to
cushion the effect of this pandemic. However, developing
countries evidence from the Nigeria experience are posed with
the challenge of shifting from the traditional teaching method to
the e-learning during the pandemic. The challenges arise as a
result of the varying degree of preparedness of the institutions,
lack of infrastructures, paucity of funds and policies issues in the
Nigeria education sector. It is in tandem with this prevailing
issues that this study examines the Nigeria educational system
based on the global pandemic. This paper further discusses the
necessity of e-learning; identifies and discuss challenges as well
as opportunities. Recommendations to enhance e-learning during
and post COVID-19 were also given
Description: Staff Publication2020-05-01T00:00:00ZTREATABILITY STUDIES ON RAW WATER FROM APONMU RESERVIOR IN ILARA – MOKIN, , NIGERIA
http://repository.elizadeuniversity.edu.ng/jspui/handle/20.500.12398/1062
Title: TREATABILITY STUDIES ON RAW WATER FROM APONMU RESERVIOR IN ILARA – MOKIN, , NIGERIA
Authors: Oke;, I.A.; Daramola, D.A.; Adeniji, A.A.; Fakorede, E.O.; Adanikin, Ariyo; Olabode, K.O.; Aladeyelu, A.; Arowolo, O.K.; Agada, O.V.; Agboola, A.; Gabriel, O.
Abstract: Adequate water supply is an important ingredient in human’s development. In this study, samples of war water were collected
from Aponmu reservoir at Elizade University, Ilara – Mokin , Ondo State, Nigeria at intervals of one week for six months.
These water samples were subjected to laboratory studies (Column, pH adjustment, Jar and residual chlorine tests). Laboratory
analysis of flocs formation during coagulation, iron and microbes removal of chlorination process, pH adjustment and residual
chlorine after treatment of the samples were conducted using standard methods in a bench scale and executed at prototype
phase. Iso-concentration curves were developed from column tests to ascertain settle-ability of the flocs during treatment. The
study revealed that optimum doses of coagulant and chlorination were 80 mg/l, and 10 mg/l, respectively for effective removal
of iron and residual chlorine concentration of 3 mg/l. Flocs removal was 65 % of the influent flocs in the coagulated raw water
at a depth of 1.2 m and at a retention time of 60 minutes. Analysis of iso-concentration curves revealed that overall flocs
removal was 89 % at 60 minutes. This indicated that for a retention period of an hour 350 mg/l of flocs would be removed from
the coagulated raw water. Removal of iron from the coagulated water was between 90 and 95 % of initial iron concentration of
1.42 mg/l and removal of microbes was 99.1 % at retention time of 40 minutes. It was concluded that Aponmu reservoir can
be used as water source with little modification of the current facilities, but further studies are required to ascertain effects of
other factors (quality of raw water, rainfall intensity, time of concentration, discharge rate) on quality of water production.
Description: Staff Publication2019-01-01T00:00:00Z