Investigation on the Suitability of Pumice and Scoria Aggregates in Ribbed-Slab Constrution
| dc.contributor.advisor | Zerayohannes, Girma (PhD) | |
| dc.contributor.author | Yohannes, Melese | |
| dc.date.accessioned | 2018-07-26T10:49:07Z | |
| dc.date.accessioned | 2023-11-11T12:56:58Z | |
| dc.date.available | 2018-07-26T10:49:07Z | |
| dc.date.available | 2023-11-11T12:56:58Z | |
| dc.date.issued | 2010-10 | |
| dc.description.abstract | This thesis presents the results of an investigation on the suitability of pumice and scoria aggregates in ribbed-slab construction. The aggregates were assessed for their utilization in topping and web construction of ribbed-slab. The suitability of using scoria as both fine and coarse aggregate; and pumice as fine aggregate in all-lightweight concrete production is assessed. The properties of scoria-scoria concrete (ScScC) and scoria-pumice concrete (ScPC) are evaluated by conducting comprehensive series of tests on workability, density and strength. Experimental and theoretical investigations were conducted to study the strength and deformation characteristics of ribbed-slab with 60 mm topping. Part of the experimental program was dedicated to the study of mix design for the production of all-lightweight structural concrete. The second part of the experimental program was concerned with full size slab testing. Theoretical investigations were conducted parallel to the experimental investigations. Developed ScScC mixtures have attained required strength and density to be accepted as structural lightweight concrete; however, ScPC cannot be used as structural concrete. Comparison of test results showed that ribbed-slabs can be constructed using scoria aggregates with 47% fine content, 1.6 A/C ratio and 0.4 W/C in range of normal cement content. Keywords: Scoria, Pumice, Lightweight aggregates, Lightweight concrete, Ribbed-Slab, mix design, Density, Strength. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/10072 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Scoria; Pumice, Lightweight aggregates; Lightweight concrete; Ribbed-Slab; mix design; Density, Strength. | en_US |
| dc.title | Investigation on the Suitability of Pumice and Scoria Aggregates in Ribbed-Slab Constrution | en_US |
| dc.type | Thesis | en_US |