Today cement concrete is the main structural material, that’s why the problems of improvement of its technological strength and durability are highly relevant. Among the additives, which are widest used in the production of concrete and reinforced concrete, there are in the first place polycarboxylate superplasticizers which attract special attention of specialists and scientists. Classification and the working mechanisms, positive and at the same time negative sides of using superplasticizing additives in concrete manufacturing techniques is given.
пластифицирующие добавки в бетон, поликарбоксилатные суперпластификаторы, стерический эффект, воздухововлечение, явление «переразжижение» (over-fluidification), водоредуцирующий эффект, plasticizing additives in concrete, polycarboxylate superplasticizers, steric effect, durability, workability, over-fluidification, water reducing effect
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