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Mechanical and Surface Morphology Properties of Low Density Polyethylene Composites Filled with Organic Materials
Onyenweaku Chinonso Emmanuel,
Nwokoye Joy Nwando,
Chris-Okafor Pauline Uchechukwu
Issue:
Volume 5, Issue 1, March 2021
Pages:
1-4
Received:
8 December 2020
Accepted:
14 January 2021
Published:
10 March 2021
Abstract: The effects of coconut husk and mango seed shell filler blend which are considered as agricultural wastes on the mechanical properties of Low Density Polyethylene (LDPE) composites were studied. These fillers which are of plant origin, organic, cheap to acquire, available, and biodegradeable were incorporated into LDPE polymer resin for the fabrication of bio-degradeable LDPE polymer composites. Varying percentages of the fillers, 0%, 5%, 10%, 15% and 20% were added to the LDPE polymer resins to produce biodegradeable LDPE polymer composites through injection moulding machine. The mechanical properties such as tensile strength, flexural strength, compression strength and hardness test were tested for. The surface morphology of the composites was also tested for via scanning electron microscope. The results showed that the fillers had positive impacts on the mechanical properties of the polymer composites by improvement in the flexural strength and hardness. The use of such cheap, available and biodegradeable raw materials can decrease the high cost of production of LDPE products, and aid the production of more eco friendly polymer composites.
Abstract: The effects of coconut husk and mango seed shell filler blend which are considered as agricultural wastes on the mechanical properties of Low Density Polyethylene (LDPE) composites were studied. These fillers which are of plant origin, organic, cheap to acquire, available, and biodegradeable were incorporated into LDPE polymer resin for the fabrica...
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Study on Bagasse Reinforced Waste Thermoplastic Composite: Compressive Strength and Water Absorption
Tekalign Aregu Tikish,
Nefisa Abdulkadir Ali
Issue:
Volume 5, Issue 1, March 2021
Pages:
5-10
Received:
31 December 2020
Accepted:
15 January 2021
Published:
10 March 2021
Abstract: This study reported that the compressive strength and water absorption properties of thermoplastic reinforced with bagasse and sand composite materials. In recent times, the population of the country is increasing rapidly, and in parallel, their demand for residence also increasing. However, there is a shortage of resources of former conventional construction materials to satisfy their needs. Besides this, the former conventional is environmentally degradable. Moreover, construction cost increases from time to time. Due to this reason, the choice of an alternative material is needed in construction. Bio-based composite has developed from sugarcane bagasse, sand as reinforcement, and the recycled thermoplastic as the matrix. The biocomposite specimen was prepared for compressive strength and water absorption test. The compressive strength and water absorption test of the biocomposite are tested. The compressive strength test was conducted by Toni Technik automatic compressive strength test machine. The result shows that the average compressive strength of 3.01 MPa. With the dispersion 0.73 from the mean average strength. The dimensional change due to water absorption is 1.24% within 24 hours. This result shows a small dimensional change. The result compared with Ethiopian Standard building Code (ESC D3 301) and the developed bio-composite using sand, sugar cane bagasse and thermoplastics composite was a satisfactory result of residential construction.
Abstract: This study reported that the compressive strength and water absorption properties of thermoplastic reinforced with bagasse and sand composite materials. In recent times, the population of the country is increasing rapidly, and in parallel, their demand for residence also increasing. However, there is a shortage of resources of former conventional c...
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Evaluation of Material Management Methods in Selected Building Construction Sites in Abuja and Lagos State, Nigeria
Godwin Ehis Oseghale,
Johnson Damilola Adetooto,
Bridget Oseghale
Issue:
Volume 5, Issue 1, March 2021
Pages:
11-17
Received:
10 December 2020
Accepted:
4 January 2021
Published:
12 March 2021
Abstract: The study appraised the degree of necessity and usage of material management methods adopted by small-scale construction firms in Abuja and Lagos State, Nigeria. It identified and examined the factors affecting material management practices, and assessed material management-related factors influencing cost variance. Eighty (80) structured questionnaires was administered on sites supervisor/manager through purposive sampling. Data obtained were analyzed using frequency, percentages, Mean score and relative severity index. The study revealed the most important material management method as site planning and organization (4.95), while employment of security (4.88) was often adopted for effective material management. The study found the most severe factors affecting material management as poor site organization, non-availability of material on sites, material not delivered as per schedule with severity index of (0.958), (0.948) and (0.928) respectively. Inadequate storage facilities (3.69), damaged materials (3.65), Loss of material (3.54), were found as material management factors most influencing cost variance. The study therefore recommends that; proper site organization should be carried out on construction site; materials should be made available on-site with required quantities and delivered as at when due with adequate stacking and storage facilities. More so, there should be adequate storage facilities on construction sites, material damage/ loss of material should be reduced to the barest minimum. The service of a good estimator should be engaged by the firms to mitigate against inaccurate/poor estimation of materials.
Abstract: The study appraised the degree of necessity and usage of material management methods adopted by small-scale construction firms in Abuja and Lagos State, Nigeria. It identified and examined the factors affecting material management practices, and assessed material management-related factors influencing cost variance. Eighty (80) structured questionn...
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Evaluating the Effect of Drying Methods on the Properties of a Water Base Drilling Mud
Akintola Abidemi Sarah,
Arigbe Titi Ebidiseghabofa
Issue:
Volume 5, Issue 1, March 2021
Pages:
18-22
Received:
8 January 2021
Accepted:
21 January 2021
Published:
17 March 2021
Abstract: It is important to understand the properties influencing the efficiency of a drilling fluid while drilling for oil and gas. As a result, drilling fluid must be designed in order to comply with three important requirements which are easy to use, cost effective and being environmentally friendly. Several studies have been carried out on the use of local materials as suitable substitute for imported additives. This study focuses on the use of starch processed from local cassava (Manihot esculenta Crant), (TME 419) using the process of wet milling and dried using three different methods namely: oven drying, direct heating and sun drying Due to this short coming resulting from the use of native starch, the starch was chemically modified using the process of esterification before being used as additive for treatment of the water-based drilling. The mud samples were prepared using Wyoming bentonite and distil water as the base fluid. Varying concentration of additives (0.5, 1.0 and 1.5 g) were added to the different mud samples and the laboratory test carried out in accordance with the API Recommended Practice 13B at varying temperatures (30, 50.70 and 90°C). The various mud samples rheological properties was determined using a Fann35A rheometer and the filtration properties using a low –Temperature and High –Pressure API Filter Press at 100 psi with a 3.5” filter paper. The mud samples labelled labeled A, B and C were treated with oven dry, direct heat and sundry modified starches, respectively. While two control mud samples were prepared using low viscous Carboxymethyl cellulose for mud sample D and extra high viscous CMC in sample E. Although the Viscosity and fluid loss profiles result of the mud samples comparable performance with that of the commercial CMC’s. However, mud samples treated with oven dried starches presented the best results in their rheological as well as fluid loss properties
Abstract: It is important to understand the properties influencing the efficiency of a drilling fluid while drilling for oil and gas. As a result, drilling fluid must be designed in order to comply with three important requirements which are easy to use, cost effective and being environmentally friendly. Several studies have been carried out on the use of lo...
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