The use of chemical stabilisers in labour intensive road construction.

[摘要] Until recently use of ionic chemical soil stabilisersseemed hit or miss. The paper by paige-Green andBennett explains that the stabilisers work only onsoils containing reactive clays. The author's findingsconfirm this conclusion. It was shown that a CBR test,which can be done in any road soils laboratory, can beused to measure the chanqe in strength caused by thetreatment of the soil with a chosen ionic stabiliser.South Africa is faced with a serious unemploymentproblem. The World Bank and the International LabourOrganisation have shown that employment in constructioncan be significantly increased by the use of labourinstead of machinery. Field trials showed that ionicstabilisers can readily be applied labour intensively.These stabilisers could improve marginal materials toroad-building standard and this could further reducethe dependence on machinery by reducing the need totransport quantities of high quality gravel.

[发布机构] University of the Witwatersrand