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An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME)
Dissertation (MEng (Transportation))--University of Pretoria, 2021.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2022
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| _version_ | 1867613500450275329 |
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| access_status_str | Open Access |
| author2 | Steyn, Wynand J.vdM. |
| author_browse | Steyn, Wynand J.vdM. |
| author_facet | Steyn, Wynand J.vdM. |
| collection | Thesis |
| dc_rights_str_mv | © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng (Transportation))--University of Pretoria, 2021. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/86501 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:08.286Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/86501 An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) Steyn, Wynand J.vdM. CJKeyter@Gmail.com Jordaan, Gerrit Keyter, Christoffel Johannes Alkoxysilane Gravel road palliative Nano-modified emulsion Primer Binder UCTD Dissertation (MEng (Transportation))--University of Pretoria, 2021. The use of a Nano-Modified Emulsion (NME) as a palliative and primer is explored in this paper. The main areas of interest of the research are the aggregate binding effect that NMEs have on treated (primed) samples. NME’s ability to increase the surface strength (cohesion and punching resistance) of primed material is of importance when considering the use of an NME primer as a palliative (improved cohesion) for gravel roads or as a primer (improved punching resistance) to support thin seals. Hence, the California Bearing Ratio (CBR) test was performed on primed and unprimed (control) samples to evaluate the change in surface strength, i.e., increase in punching resistance and a means of quantifying a change in cohesion. A G9 (COTO) material was treated with three emulsions, namely: Standard SS-60 emulsion (SS-60) SS-60 emulsion modified with alkoxy-silane-emulsifier (NME) An emulsion containing alkoxy-silane-emulsifier and graduated polymers as the binders (Clearsil) The laboratory level investigation involved priming G9 material with the two emulsions so that a change in CBR strength could be compared to the unprimed (ceteris paribus) control samples. G9 samples primed with the SS-60 emulsions resulted in no change in the CBR strength compared to the unprimed control samples. The NME on the other hand was able to increase the CBR strength of primed samples in the upper 5 mm of the samples. Civil Engineering MEng (Transportation) Unrestricted 2022-07-27T13:32:18Z 2022-07-27T13:32:18Z 2022-09 2021 Dissertation * https://repository.up.ac.za/handle/2263/86501 https://doi.org/10.25403/UPresearchdata.19950218.v1 en © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Alkoxysilane Gravel road palliative Nano-modified emulsion Primer Binder UCTD An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title | An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title_full | An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title_fullStr | An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title_full_unstemmed | An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title_short | An investigation into the behaviour of natural gravel primed with new-age modified emulsions (NME) |
| title_sort | investigation into the behaviour of natural gravel primed with new age modified emulsions nme |
| topic | Alkoxysilane Gravel road palliative Nano-modified emulsion Primer Binder UCTD |
| url | https://repository.up.ac.za/handle/2263/86501 https://doi.org/10.25403/UPresearchdata.19950218.v1 |