Evaluation of the effects of enzyme-based liquid chemical stabilizers on subgrade soils
| dc.contributor.author | Mgangira, M.B. | en |
| dc.contributor.other | Southern African Transport Conference (28th : 2009 : Pretoria, South Africa) | en |
| dc.date.accessioned | 2009-11-20T10:36:46Z | en |
| dc.date.available | 2009-11-20T10:36:46Z | en |
| dc.date.issued | 2009-07-06 | en |
| dc.description | This paper was transferred from the original CD ROM created for this conference. The material was published using Adobe Acrobat 8.0 Technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: nigel@doctech URL: http://www.doctech.co.za | en |
| dc.description.abstract | Paper presented at the 28th Annual Southern African Transport Conference 6 - 9 July 2009 "Sustainable Transport", CSIR International Convention Centre, Pretoria, South Africa. | en |
| dc.description.abstract | The purpose of this study was to assess the strength of enzyme treated soil material. Thus the aim of the paper is to present laboratory results on the effects of two enzyme-based liquid chemicals as soil stabilizers. Soil samples were prepared for standard geotechnical tests from two types of soils treated with the two enzyme-based products. One soil had a plasticity index of 35 and the other had a plasticity index of 7. The maximum plasticity index reduction after treatment of both soils was less than 5 % and therefore not significant. A slight improvement in the maximum dry density was obtained following treatment by one product on one of the soil samples. Unconfined compressive strength was evaluated after the samples were left to cure in plastic bags for 7, 14 and 28 days and revealed a mixed effect on strength. Those instances where there was increase in strength it was less than 50 % with increase in concentration level of the two enzyme-based stabilizers and age for both soils after treatment. More independent investigations on the effects of enzymes based liquid stabilisers on the strength of treated soils are required if the level of their acceptance in road construction is to be enhanced. | en |
| dc.identifier.citation | Mgangira, MB 2009, 'Evaluation of the effects of enzyme-based liquid chemical stabilizers on subgrade soils', Paper presented to the 28th Annual Southern African Transport Conference, South Africa, 6-9 July. p. 192-199 | en |
| dc.identifier.isbn | 9781920017392 | en |
| dc.identifier.uri | http://hdl.handle.net/2263/11962 | en |
| dc.language.iso | en | en |
| dc.publisher | Document Transformation Technologies | en |
| dc.relation.ispartof | SATC 2009 | en |
| dc.rights | University of Pretoria | en |
| dc.subject | Sustainable transport | en |
| dc.subject | Enzyme treated soil | en |
| dc.subject | Liquid chemicals | en |
| dc.subject | Soil stabilizers | en |
| dc.subject | Road construction | en |
| dc.subject.lcsh | Transportation | en |
| dc.subject.lcsh | Soil conditioners | en |
| dc.subject.lcsh | Roads -- Design and construction | |
| dc.title | Evaluation of the effects of enzyme-based liquid chemical stabilizers on subgrade soils | en |
| dc.type | Event | en |
| dc.type | Presentation | en |