Study on the Influence of Water-Reducing Additives in Concretes for Civil Construction

Abstract:

Water-reducing additives for concretes are high efficiency dispersants that promote reduction of viscosity in suspensions, minimizing the amount of water used to hydrate the cement, thus enabling the fabrication of concrete with excellent properties. However, different forms of interaction between cement and additives are observed. In this work the properties of concrete formulated with three dosages of a polycarboxylate-based water-reducing additive and cement type CPII E-32 from two distinct manufacturers were investigated. In the experimental part, we verified the importance to use this technology justified by excellent results obtained for mechanical resistance and plasticity properties of the concretes. Through statistical analysis it was possible to point a discrete superiority in compositions using Holcim cement in function of its physical and chemical characteristics, in which the interaction process showed to be more efficient.

• Periodical: Materials Science Forum (Volume 881)
• Pages: 233-238
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.881.233
• Online since: November 2016
• Authors: Rodolfo H.F Grillo, Sylma Carvalho Maestrelli, K.V.F. Grillo, Neide Aparecida Mariano, Carolina del Roveri, Patrícia Neves Mendes
• Keywords: Cement, Civil Concrete, Deflocculation, Water-Reducing Additive

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