MECHANICAL PROPERTIES OF CONCRETE WITH RECYCLED AGGREGATES AND WASTE GLASS

Author(s): Viviana Letelier, Ester Tarela, Rodrigo Osses, Juan Pablo Cardenas, and Giacomo Moriconi
Book Title: III Progress of Recycling in the Built Environment
Editor: I. Martins, C. Ulsen and S. C. Angulo
e-ISBN: 978-2-35158-158-2
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 1-8
Total Pages: 8
Language: English

Abstract: The present investigation analyzes the compressive and flexural strength of concrete with recycled materials. The combined influence of the use of coarse aggregates from precast debris and waste glass as a cement replacement is studied. The combination of both recycled materials allows to increase the amount of recycled coarse aggregates used reducing the loss in the mechanical performance of the concrete, and enhances the environmental value of the final material. The recycled aggregates are obtained from debris of prefabricated concrete pipes with a compressive strength of 20 MPa. The waste glass has been obtained from glass disposal facilities. Four variables are considered in this analysis: the percentage of recycled course aggregates, the amount of mortar adhered to their surface, the amount of cement replaced by recycled glass powder and the maximum size o of its particles. The final goal is to determine which of the variables has a more significant effect in the final product and which combination is the most efficient to optimize the performance of the concrete maximizing its environmental value. Significant results have been obtained that show that the calibration of the parameters may not be trivial, and the importance of combining different recycled materials.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00