TUMBA, MASI LASSA and Covenant University, Theses (2018) MECHANICAL PROPERTIES OF LIGHT-WEIGHT SELF COMPACTING CONCRETE USING POFA AS PARTIAL REPLACEMENT FOR CEMENT. Masters thesis, COVENANT UNIVERSITY.
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Abstract
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.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Self compacting concrete, lightweight concrete, super plasticizer, palm ash, coarse aggregate, fine aggregate |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Mrs Hannah Akinwumi |
| Date Deposited: | 26 Jun 2020 11:02 |
| Last Modified: | 26 Jun 2020 11:02 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/13422 |
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