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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1880

Title: Real cause of detrimental carbonation in chemically stabilized layers and possible solutions
Authors: Botha, PB
Semmelink, CJ
Raubenheimer, J
Keywords: Chemical reactions
Erosion beam test
Strength development
Water driven reactions
Stabilisation design technology
Curing temperatures
Issue Date: Oct-2005
Citation: Botha, PB, Semmelink, CJ, and Raubenheimer, J. The real cause of detrimental carbonation in chemically stabilized layers and possible solutions. TREMTI 2005: Treatment and Recycling of Materials for Transport Infrastructure. 2nd International Symposium, Paris, France, 24-26 October, 2005, pp. 1-11
Abstract: "Detrimental carbonation" manifests itself by the loss of cementitious stabilization and the forming of loose powdery layers which lead to debonding of the surfacing. Up till now this was seen to be caused by poor curing techniques by contractors and therefore construction related. In Africa large sums of money were lost because the real cause was not properly identified, and a number of contractors probably went bankrupt because of this. If sufficient stabilizer was wrongly specified , this led to the destabilization of the layer with time, which was described as "carbonation from below"
URI: http://hdl.handle.net/10204/1880
Appears in Collections:General science, engineering & technology

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