Effect of Elevated Temperature on Mechanical Properties of Waste Polymers Polyethylene Terephthalate and Low Density Polyethylene Filled Normal Concrete Blocks
American Journal of Polymer Science and Technology
Volume 4, Issue 1, March 2018, Pages: 28-35
Received: Apr. 22, 2018; Accepted: May 7, 2018; Published: Jun. 2, 2018
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Kevin Ibe Ejiogu, Directorate of Research and Development, Nigeria Institute of Leather and Science Technology, Zaria, Kaduna State, Nigeria
Paul Andrew Mamza, Department of Chemistry, Ahmadu Bello University, Samaru, Zaria, Kaduna State, Nigeria
Peter Obinna Nkeonye, Department of Polymer & Textile Engineering, Ahmadu Bello University, Samaru, Zaria, Kaduna State, Nigeria
Shehu Aliyu Yaro, Department of Materials & Metallurgical Engineering, Ahmadu Bello University, Samaru, Zaria, Kaduna State, Nigeria
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Thermal properties of M30 normal concrete block (NC) were compared with concrete filled with waste poly ethylene terephthalate and waste low density polyethylene aggregates which were used as partial replacement of sand in the production of concrete blocks (plast-cretes). Tests were carried out using 100mm×100mm Cubes and 100mm×200mm Cylinder for Compressive and Split tensile Test respectively. The mechanical properties of normal concrete and plast-crete were studied and compared over two temperature regimes at 100°C-400°C and 400°C-800°C. The compressive and Split Tensile strength of normal concrete increased slightly from 100°C-400°C, and reduced from 400°C-800°C. However, the compressive and split tensile strength of the plast-crete showed a gradual reduction from 100°C-400°C and this continued from 400°C-800°C, and became more pronounced as the percentage of waste plastics in the plast-crete increased. The percentage of weight loss for the normal concrete increased from 100°C-400°C, this increase continued from 400°C-800°C. The plast-crete also showed an increase in the percentage weight loss for both temperature regimes and the percent weight loss became more pronounced as the percentage of waste plastics in the plast-crete increased. The normal concrete showed greater spalling than the plat-cretes. Even with the slight reduction in strength with increasing temperature, Plast-cretes can still be applied in areas where low temperature and minimal load bearing applications are needed such as fancy blocks, pedestrian walk ways, slabs, partition walls, fences, houses and light traffic structures.
Concrete, Plast-Crete, Elevated Temperature, Compressive Strength, Percent Weight Loss, Waste Polymers, Waste Plastics Polyethylene Terephthalate, Waste Plastics Low Density Polyethylene
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Kevin Ibe Ejiogu, Paul Andrew Mamza, Peter Obinna Nkeonye, Shehu Aliyu Yaro, Effect of Elevated Temperature on Mechanical Properties of Waste Polymers Polyethylene Terephthalate and Low Density Polyethylene Filled Normal Concrete Blocks, American Journal of Polymer Science and Technology. Vol. 4, No. 1, 2018, pp. 28-35. doi: 10.11648/j.ajpst.20180401.12
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