Title: Use of sintered fly ash aggregate in pervious concrete

Authors: Subhakanta Dash; Biswabandita Kar; Laxmidhar Panda; Syed Mohammed Mustakim; Itishree Mohanty; Rudra Prasanna Nayak

Addresses: Department of Chemistry, Synergy Institute of Engineering and Technology, Dhenkanal, Odisha, India ' Department of Chemistry, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India ' Department of Chemistry, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India ' Department of Environment and Sustainability, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, India ' Department of Chemistry, Synergy Institute of Engineering and Technology, Dhenkanal, Odisha, India ' Department of Chemistry, Synergy Institute of Engineering and Technology, Dhenkanal, Odisha, India

Abstract: In the present study, fly ash-based pervious concrete (FPC) is fabricated using sintered fly ash aggregates. Materials used include OPC Type I cement, the coarse aggregate of size 4.75, 9.5, 12.5 mm, water, and superplasticiser. Using these materials, various concrete mixtures were developed with a water to cement ratio of 0.30, 0.35, and 0.40, respectively. The effect of these parameters on the mechanical properties of the pervious concrete such as compressive strength, flexural strength, tensile strength, permeability, porosity, abrasion resistance, and leachability is studied. The test results showed that pervious concrete materials made with sintered fly ash aggregates had a better mechanical as compared to natural available aggregate. In addition, the concrete with SFA aggregates could achieve compressive strength ranges from 7.15 to 17.40 MPa with porosity range from 26.79 to 34.05% and these can be adopted as an environment-friendly concrete.

Keywords: fly ash; aggregate; admixture; sintering; strength; permeability; porosity; durability.

DOI: 10.1504/IJMPT.2021.115218

International Journal of Materials and Product Technology, 2021 Vol.62 No.1/2/3, pp.199 - 219

Received: 15 Mar 2020
Accepted: 02 Oct 2020
Published online: 24 May 2021 *

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