Abstract:The loss of dispersing ability by polycarboxylates ether superplasticizers in alkali-activated slag cements has been widely reported. However, no clear-cut explanation of this phenomenon can be found to date. Therefore, the behaviour of poly(methacrylate-g-poly(ethylene glycol)) superplasticizers in NaOH or Na2CO3 -activated slag pastes was investigated. The observed loss of efficiency of the polymer was not due to a specific property of the slag particles, nor to structural degradation of the polymer in the a… Show more
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