Performance Evaluation of Concrete made of Recycled Fine Aggregates from Different Exposure Conditions

Author(s): Dhanya B. S., Anujith K. Babu, Jacob Sebastian, Varsha S. Kumar and Smruthi P. Nair
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 152-161
Total Pages: 10
Language : English

Abstract: Concrete is the most widely used construction material. Over the years there has been an acute shortage of natural fine aggregates. The use of aggregates prepared by recycling construction and demolition waste is a promising solution in this regard. This paper discusses the fresh, mechanical and durability properties of concrete made with recycled fine aggregate (RFA), which are prepared from deteriorated concrete collected from different exposure conditions. The sites from where the deteriorated concrete collected belong to XS1 and XC1 as per the environmental exposure classification system suggested by BS 8500: 2006. In addition, fresh leftover hardened concrete from the laboratory which are least deteriorated are also used for making RFA. Each type of RFA were used in partial replacement of 10%, 20%,
and 30% for fine aggregate in concrete mixes with a cement content of 380 kg/m3 water cement ratio of 0.45. In addition, control mixes were also prepared. The concrete properties studied include workability, unit weight, compressive strength, split tensile strength, chloride ion penetrability (by ASTM C 1202) and water permeability (DIN 1048 part 5). The results show that, the concrete with RFA has comparable properties with that of conventional concrete irrespective of the source.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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