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| Comparative Effects Of Selected Aggregates On The Construction Of Concrete Garden Seat |
Aluko, K. A., Aderemi, A.M., Majekodunmi, O.A., Ogunwale, O.G., Adewoye, A.A, Oyewole, O.O., Amoran, S.A.
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Abstract:
Concrete is a widely used construction substance that consists of cement material, fine aggregate, coarse and required quantity of water. Fine aggregate is usually sand properties of fine aggregate which affect the durability and performance of concrete in the block industry. The most commonly used fine aggregates are natural river sand, granite, sawdust, stone dust, Palm kernel, and some agricultural waste product. A concrete garden seat is one of the hardscapes, it beautifies and provides means of relaxation in a recreation garden. The study was based on the use of different aggregate (Stone dust, River sand, Sawdust, Palm kernel, Water, and Cement) on the production of the concrete garden seat and comparing their rate of water absorption, compressive strength of each treatment and determine the best treatment for the construction of concrete garden seat that will meet up with the ASTM standard organization. Therefore, the parameters assessed were water absorption, compressive strength and cost implication of the treatments. The results showed that treatment T0 (175 kg of stone dust and 50 kg of cement) had the highest compressive strength with an average of 3.935 MPa, this suggests its high durability and longevity. On the other hand, the production cost ?15,150 which is more expensive when compared with the other treatments. The study further discovered that T2 (75 kg of river sand, 50 kg of stone dust, 50 kg of palm kernel shell and 50 kg of cement) can be compared with T0 in terms of compressive strength (3.541MPa) and water absorption rate (5). The cost of production (?14,300) is less than that of T0 (?15,150) and also is environmentally friendly. The results obtained from the use of palm kernel waste (shell) for the production of garden seat has shown that it is durable, has appreciable water absorption rate, reduced use of stone dust, reduced cost of production and encouraged sustainable waste management. It is therefore, recommended that T2 (75 kg river sand, 50 kg stone dust, 50 kg cement and 50 kg palm kernel shell) should be used in the production of horticultural garden seats.
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