dc.contributor.author | Avini, Jimmy | |
dc.date.accessioned | 2024-05-15T09:17:52Z | |
dc.date.available | 2024-05-15T09:17:52Z | |
dc.date.issued | 2022-11 | |
dc.identifier.citation | Mugisha, B. (2023) Investigating effects of plant based ploymeric material as a chemical admixture on the properties of concrete (Unpublished undergraduate dissertation). Makerere University, Kampala, Uganda | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12281/18644 | |
dc.description | A project report submitted in partial fulfillment of the requirements for the award of Bachelor of Science in Civil Engineering | en_US |
dc.description.abstract | Aqueous extract of okra called here as bio-admixture was tested for use as a sustainable chemical
admixture in the production of cement mortar and concrete. Several fresh and hardened states properties
of cement mortars and concrete with and without the presence of bio-admixture were evaluated. The
influences of the mucilage on the setting time of concrete, the workability, as well as compressive
strengths were investigated. Optimization experiments were run to establish the most optimum mucilage
concentration for the mix. Results indicated that the investigated bio-admixture exhibits viscosityenhancing property. In comparison to the reference mixes, bio-admixture as an admixture is more of a
retarder. Evidently, the extract presented an increased rate of hydration; supposedly related with the
interactions of pectin type hetero-polysaccharides present in bio-admixture with Ca2+ ions of cement
paste. Compressive strengths of bio-admixture containing mortar and concrete are higher than that of the
reference specimens at the investigated curing periods. Most of the properties of cement mortar and
concrete are also dependent on the concentrations of bio-admixture in mix. Therefore, investigated bioadmixture can ably be considered as a low-cost, environmentally benign viscosity enhancing admixture
for producing sustainable cement composites having improved mechanical and possible durability
properties. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Makerere University | en_US |
dc.subject | Plant based polymeric material | en_US |
dc.subject | Chemical admixture | en_US |
dc.subject | Concrete | en_US |
dc.title | Investigating effects of plant based ploymeric material as a chemical admixture on the properties of concrete | en_US |
dc.type | Thesis | en_US |