Feasibility of using scoria and pumice as aggregates and using lime and pozzolan as binders in production of lightweight aggregate blocks
| dc.contributor.author | Mande, Fredric Onesphoro | |
| dc.date.accessioned | 2021-01-21T10:49:44Z | |
| dc.date.available | 2021-01-21T10:49:44Z | |
| dc.date.issued | 2018 | |
| dc.description | Available in print form, East Africana Collection, Dr.Wilbert Chagula Library, class mark (THS EAF TA441.M262) | en_US |
| dc.description.abstract | In Tanzania most engineers use natural sand and granite aggregates for production of concrete and this has caused serious geological and land degradation problem. In volcanic areas, we have other types of aggregate like pumice and scoria which would be used with the natural pozzolan found in these areas to make cheaper concrete and building blocks and minimize the degradation problem. Thus study investigated the use of pumice and scoria aggregates to make lightweight construction blocks using natural pozzolan and lime as binders. The aggregates and natural pozzolan used were from Arusha. Kilimanjaro and Mbeya regions of Tanzania. Different lime: pozzolan ratios were investigated and there were 1:2,1:3 and 1:4, the binder aggregates ratios were also varied in the ratios 1:3, 1:6 and 1:9. The objective was to determine which ratios would meet the blocks strength requirements maximally employed in practice. The water binder ratios used were obtained by trial and error to give stable un-collapsible blocks. It was found out that the strength obtained for the blocks ranged from 1-2 N/mm2and 1-3N/mm2 when pumice and scoria were used respectively, and strengths were sufficient for non-load bearing walls. It was also established from the strength obtained from scoria could be used as blocks for low cost bonuses and in one to two story buildings. | en_US |
| dc.identifier.citation | Mande, F. O(2018)Feasibility of using scoria and pumice as aggregates and using lime and pozzolan as binders in production of lightweight aggregate blocks,Masters dissertation,University of Dar es Salaam, Dar es Salaam. | en_US |
| dc.identifier.uri | http://41.86.178.5:8080/xmlui/handle/123456789/14159 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of Dar es Salaam | en_US |
| dc.subject | Aggregates (Building materials) | en_US |
| dc.subject | Brock making | en_US |
| dc.subject | Pozzolanes | en_US |
| dc.subject | Portland cement | en_US |
| dc.subject | Pumice industry | en_US |
| dc.subject | Water | en_US |
| dc.subject | Scorials | en_US |
| dc.title | Feasibility of using scoria and pumice as aggregates and using lime and pozzolan as binders in production of lightweight aggregate blocks | en_US |
| dc.type | Thesis | en_US |