http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/109 Civil Engineering Wed, 09 Sep 2026 22:39:11 GMT 2026-09-09T22:39:11Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31427 Title: SAWDUST ASH STABILIZATION OF WEAK LATERITIC SOIL Authors: kolo, S. S.; Jimoh, Y. A; Yusuf, I. T.; Adeleke, O. O.; Balarebe, F.; Shehu, M. Abstract: This research work investigated the improvement of the properties of weak lateritic soil using sawdust ash (SDA) as the stabilizing agent. Preliminary tests such as specific gravity, moisture content, Atterberg limits, particle size distribution, Geotechnical strength tests (compaction and unconfined compressive strength (UCS) tests) were first carried out to determine the initial properties of the weak lateritic soil without the stabilizer. Based on the results of these tests, the soil was classified according to AASHTO soil classification system as A-7-5 soil which is a poor soil. The soil was then stabilized, consistency tests and strength tests such as, compaction tests and unconfined compressive strength (UCS) were performed on the soil by the addition of 2%, 4%, 6%, 8% and 10% sawdust ash to 98%, 96%, 94%, 92% and 90% by weight of the lateritic soil respectively. The results showed that sawdust ash improved the geotechnical properties of the weak lateritic soil. The optimum improvement in the properties of weak lateritic soil by stabilization using SDA is at 4% replacement. At this percentage of stabilization, the soil was classified as an A-5 soil (fair silty soil), the liquid limit decreased by 4.96%, the plastic limit decreased by 1.50%, the plastic index decreased by 15.74%, the maximum Dry Density is seen to decrease by 3.7%, the Optimum Moisture content (OMC), increased by 11.11% and the Unconfined Compression Strength increased by 26.9%. Sawdust ash is therefore found to be an effective stabilizer for lateritic soils. Tue, 01 Jan 2019 00:00:00 GMT http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31427 2019-01-01T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31426 Title: ROAD STABILIZATION USING COLD BITUMEN FOR LOW TRAFFIC ROAD Authors: Kolo, S. S.; Jimoh, Y. A.; Alhaji, M. M.; Olayemi, J.; Shehu, M. Abstract: This research work is aimed at strengthening weak soil using cold bitumen for a low traffic road by stabilization method using varying percentages of cold bitumen (0%, 2%, 4% and 6%) to determine at which stabilization content is the soil strengthen for low traffic use. The lateritic soil used in this research work was collected at Kpakungu along Minna – Bida road and the cold bitumen was obtained in Minna. Standard laboratory tests were carried out on the lateritic soil. The tests carried out on the soil include particle size distribution determination, specific gravity test, Atterberg’s limit test, compaction test and California bearing ratio test. The results obtained from the test showed that the optimum amount of cold bitumen in terms of effectiveness and economy was 3.5%. Tue, 01 Jan 2019 00:00:00 GMT http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31426 2019-01-01T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31425 Title: Partial replacement of fine aggregate with waste glass in concrete made from Bida natural aggregate Authors: Alhaji, B.; Kolo, D. N.; Abubakar, M.; Yusuf, A.; Abdullahi, A.; Shehu, M. Abstract: This study reports the experimental investigation on the suitability of waste glass as partial replacement for fine aggregate in concrete made using Bida natural aggregates (BNA). Glass is widely used in our daily lives through manufactured products such as sheet glass, bottles, glassware, and vacuum tubing. It is an ideal material for recycling. The increasing awareness of glass recycling speeds up inspections on the use of waste glass with different forms in various fields. Mix ratio of 1:2:4 batched by weight with water cement ratio of 0.55 was used. The percentage replacement varied from 0% to 40% at 5% intervals. Slump test was conducted to assess the workability of the fresh concrete. The compressive strengths and densities of cured concrete cubes of sizes 150mm x 150mm x 150mm were evaluated at 7, 21 and 28days. A total of 81 concrete cubes were cast and tested. It was observed that an increase in the percentage replacement of fine aggregate with waste glass reduces workability, density and compressive strength. The compressive strength and density vary with days of curing. The findings of this study indicated that the optimum replacement percentage of waste glass with conventional fine aggregate was 20%. However waste glass can effectively be used as fine aggregate replacement (up to 40%) without substantial change in concrete strength. Tue, 01 Jan 2019 00:00:00 GMT http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31425 2019-01-01T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31424 Title: FREQUENCY AND VEHICLE CAPACITY DETERMINATION OF BOSSO AND GIDAN KWANO CAMPUSES, FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA: A LITERATURE REVIEW Authors: Shehu, M.; Kolo, S. S.; Hassan, A. S.; Yahaya, A. U.; Suleiman, I. M. Abstract: Line capacity is simply the number of passengers that can be transported within a given time interval. Growing traffic problems are a major concern for countries all over the world. The population of students in the University has increased tremendously over the last 6 years by about 525.25%. Almost every country of the world whether developing or developed are facing the problem in the management of transportation facilities. Transportation challenges experienced in most Nigerian urban centres include traffic congestion, inadequate provision of carriers for commuters in quantity and timeliness, poor traffic management, poor conditions of roads, attitudinal behaviour of drivers among others. The aim of this paper is to identify the most suitable methods or techniques in solving transportation problem relating to bus management of the study area and also to present an overview of some selected literature that provides different techniques for solving a frequency setting (FS) problems. Wed, 01 Jan 2020 00:00:00 GMT http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31424 2020-01-01T00:00:00Z