NEW HIGH PERFORMANCE POLYCARBOXILATE SUPERPLASTICIZERS BASED ON DERIVATIVE COPOLYMERS OF MALEINIC ACID
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Published:2005
V R Falikman, Y V Sorokin, A Y Vainer, N F Bashlykov, 2005. "NEW HIGH PERFORMANCE POLYCARBOXILATE SUPERPLASTICIZERS BASED ON DERIVATIVE COPOLYMERS OF MALEINIC ACID", Admixtures - Enhancing Concrete Performance: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 6 July 2005, Ravindra K. Dhir, Peter C. Hewlett, Moray D. Newlands
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The method of producing binary copolymers of oxyethylated allyl alcohol and maleic acid is developed. The factors affecting the molecular weight of these copolymers are studied. The proof tests of the polycarboxylated copolymers obtained as high-performance superplasticizers for concrete mixes are conducted. It is established that flowability of concrete mixes, their slump loss and strength properties of concretes depend both on the length of side oxyethylated chains of binary copolymers and on their molecular weight. It is shown that these copolymers as high-performance superplasticizers ensure high plasticity of concrete mixes at dosages 2.7-3.3 times less than those of conventional superplasticizers on the basis of naphthalene sulphonic acid and formadehyde condensates.
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