Study and improvement of scc mixtures of concrete industry

Abstract

The prepared concrete industry and the technology sector of the concrete is very competitive and constantly evolving. [Roncero et al., Empleo de hormigones autocompactantes con bajos contenidos de finos en el sector del hormigón preparado: algunas experiencias prácticas. 1st Spanish Congress on Self-Compacting Concrete. Valencia, 2008; Walraven, Self compacting concrete: Challenge for designer and researcher. 1st Spanish Congress on Self-Compacting Concrete. Valencia, 2008]. The self-compacting concrete is emerging as an effective solution for lower skilled workers. So getting the best performance concretes, reduce costs, is the day to manufacturers. [Lasala, Empleo de hormigón autocompactante en prefabricación. 1st Spanish Congress on Self-Compacting Concrete. Valencia, 2008; Galán Sánchez, Hormigón autocompactante: una apuesta para la disminución de los niveles de ruido y mejoramiento de la calidad en la producción de elementos prefabricados. 1st Spanish Congress on Self-Compacting Concrete. Valencia, 2008]The purpose of this paper is to analyze the qualities of a SCC is currently taking to try to improve their properties and try to reduce costs.Dosage is taken as a starting point a real that is used in Central and according to the specifications recommended in “European guidelines for self-compacting concrete”, paragraph 8.2 [EFNARC, Specifiction And Guidelines for Self-Compacting Concrete: Febrero 2002. http://www.enfrac.org, 2002] and Annex 17 of the EHE 08.[Ministerio de Fomento, Instrucción de Hormigón Estructural EHE 08, 2 edición: Febrero 2009] There will be a preliminary study paste the best compatibility between the portland cement used several brands of additives and superplasticizers in the markets.