MECHANICAL PROPERTIES OF LIGHT-WEIGHT SELF COMPACTING CONCRETE USING POFA AS PARTIAL REPLACEMENT FOR CEMENT
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This project work presents the results of an investigation on the mechanical properties of light weight self-compacting concrete containing palm ash (LWSCC) containing mineral (MA). The use of light weight concrete is useful in terms of decreasing the dead load of structural members, while self-compacting concrete (SCC) removes voids and ease the flow of concrete in construction. The palm ash used reduced the amount of waste in dumping site that could be a threat to the environment. The super plasticizer dosage for the concrete was 2%, aggregate size 10mm. The slump flow, T50, L-box test and V-Funnel test were conducted to determine the workability of the fresh concrete. Compressive strength, splitting tensile strength and flexural strength on the hardened obtained. Varying percentages 10-50% of LWSCC with different ash content were prepared. The results indicated a decline in the strength of concrete with the addition of POFA, the loss of concrete compressive strength by adding 50% POFA is only about 30~40%. The addition of 20% and 10% POFA yields the acceptable strength of SCC. The decrease of compressive strength is insignificant in term of economic value by cement replacement a basis for a mix ratio suitable for renovation and repair works.
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T Technology (General), TA Engineering (General). Civil engineering (General)