Designing a one-and-a-third seal using marginal aggregate by means of the modified tray test
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Date
Authors
Semmelink, C.J. (Christiaan Johan)
Botha, P.B.
Van der Walt, N.
Groenewald, H.
Journal Title
Journal ISSN
Volume Title
Publisher
SATC
Abstract
Paper presented at the 21st Annual South African Transport Conference 15 - 18 July 2002 "Towards building capacity and accelerating delivery", CSIR International Convention Centre, Pretoria, South Africa.
During February 2000, heavy rains in the Limpopo Province of South Africa, resulted in major floods causing severe damage to the road infrastructure. Road P278/1, from Wyliespoort to Sibasa, had to be closed as a result of wash-aways, damage to fills as well as mudslides in the Thate Vondo Pass. Emergency repairs and opening of the pass by removing the mudslides further damaged the surfacing and the layers of the road. Limited funds were allocated for emergency road repairs, patching and base reconstruction. Owing to the wide-ranging repair works that had to be undertaken at the time, the Northern Province Roads Agency (NPRA) experienced shortages in material resources, such as crushed stone for chip sealing. Special measures had to be taken to ensure that the quality of work was maintained despite the shortages. Hence, the NPRA requested consultants and CSIR-Transportek to investigate alternative designs for chip seals for, for instance, the reconstructed portions of P278/1.
During February 2000, heavy rains in the Limpopo Province of South Africa, resulted in major floods causing severe damage to the road infrastructure. Road P278/1, from Wyliespoort to Sibasa, had to be closed as a result of wash-aways, damage to fills as well as mudslides in the Thate Vondo Pass. Emergency repairs and opening of the pass by removing the mudslides further damaged the surfacing and the layers of the road. Limited funds were allocated for emergency road repairs, patching and base reconstruction. Owing to the wide-ranging repair works that had to be undertaken at the time, the Northern Province Roads Agency (NPRA) experienced shortages in material resources, such as crushed stone for chip sealing. Special measures had to be taken to ensure that the quality of work was maintained despite the shortages. Hence, the NPRA requested consultants and CSIR-Transportek to investigate alternative designs for chip seals for, for instance, the reconstructed portions of P278/1.
Description
This paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat 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: doctech@doctech.co.za URL: http://www.doctech.co.za
Keywords
Road infrastructure, Marginal aggregate, Modified tray test, Northern Province Roads Agency, Chip sealing designs
Sustainable Development Goals
Citation
Semmelink, CJ, Botha, PB, Van der Walt, N & Groenewald, H 2002, 'Designing a one-and-a-third seal using marginal aggregate by means of the modified tray test', Paper presented to the 21st Annual South African Transport Conference, South Africa, 15 - 18 July.