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Effect of retarders / water reducers on slump loss in superplasticized concrete

From National Research Council Canada

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  1. National Research Council of Canada
FormatText, Article
ConferenceSecond International Conference on Superplasticizers in Concrete, June 1981, Ottawa, Ontario, Canada
SubjectAdmixtures; slump tests; water reducing plasticizers; retardants; concrete (materials); workability; concrete admixtures; plasticizers; admixtures; calorimeters; compressive strength; concretes; hydration; mix proportioning; plasticizers; retarders; setting (hardening); slump tests; water-reducing agents; workability
Abstract
Superplasticized concrete loses its workability within a few hours. The effect of different amounts of admixtures, such as Ca-lignosulfonate, sucrose, Na-gluconate, citric acid, salicylic acid, Na-heptonate and Na-boroheptonate, on the slump loss of concrete containing sulfonated melamine formaldehyde is reported. Of these admixtures, Na-gluconate proved to be the best retarder of slump loss; the influence on setting times and strength development in mortars was also examined.
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  • Proceedings, Second International Conference on Superplasticizers in Concrete, 1981 (1981): 393–407.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1013
NRC numberNRCC 19766
NRC-IRC-3029
NPARC number20375210
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Record identifier24146a0c-564e-4494-bae5-2015e5ebe684
Record created2012-07-23
Record modified2024-03-22
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