Chapter
Dec 27, 2012
Possible Acceptance of Small Recycled Aggregate Fractions for Concrete Production
Authors: Dubravka Bjegovic, Ph.D. [email protected], Hrvoje Sironic [email protected], and Nina Stirmer, Ph.D. [email protected]Author Affiliations
Publication: Sustainable Construction Materials 2012
Abstract
In the western region of Croatia, small fractions of recycled aggregate have similar properties like small fractions of crushed natural aggregate regarding grain shape and fines content. The focus of this research was to analyze possibilities of using small fractions of recycled aggregate in the cases where only poor quality natural sand is available for production of concrete. The research is based on available data from concrete production in wider region of western Croatia and also on experimental research carried out on several series of mortar samples prepared with recycled and natural fine aggregate. Influence of two-phase mixing method on mortar properties in fresh and hardened state was analyzed. Based on the results of testing, it is concluded that small recycled concrete aggregate may be suitable for use in the concrete production. In concrete mix design, it is recommended to decrease absolute aggregate absorption determined according to HRN EN 1097 and to use double-mixing method, due to its positive effect on the consistency and strength.
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Published In
Sustainable Construction Materials 2012
Pages: 121 - 140
Copyright
© 2013 American Society of Civil Engineers.
History
Published online: Dec 27, 2012
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Affiliations
Full Professor, Faculty of Civil Engineering, University of Zagreb, Department of materials, Kaciceva 26, 10000 Zagreb, Croatia and Institute IGH, Janka Rakuše 1, 10000 Zagreb, Croatia. E-mail: [email protected]
Director's Assistant, Institute for Materials and Structures, Institute IGH d.d., Zagreb, PC Rijeka, Rijeka, 51000, Croatia. E-mail: [email protected]
Associate Professor, Faculty of Civil Engineering, University of Zagreb, Department of Materials, Kaciceva 26, 10000 Zagreb, Croatia. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
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