Performance Improvement of Urban Runoff System by Using Additive-Contained Pervious Concrete

مهندسی عمران فردوسی

Article 7, Volume 31, Issue 3 - Serial Number 23, August 2018, Pages 83-92   

Document Type: Research Note

DOI: 10.22067/civil.v32i1.56170

Authors

Ehsan Teymouri^{* 1}; Hojat Karami²; Sayed Farhad Mousavi²; Saeed Farzin²

¹Semnan University

²Semnan

Abstract

By adding perlite and leca to porous concrete, its physical characteristics were studied.  Compression strength, hydraulic conductivity and porosity of two porous concretes (without fine grains and with 20% fine grains) were measured. Results showed that adding 20% fine grains to porous concrete highly decreases hydraulic conductivity and porosity and increases compression strength. The highest compression strength (20.5 MPa) was seen in without-fine-grains samples (L10-0 treatment) and in with-fine-grains samples (34.85 MPa) in L15-20 treatment. The L5-0 treatment in both cases of with/without additives, had the highest hydraulic conductivity and porosity. Leca had better performance than perlite.

Keywords

Porous concrete; Leca; perlite; urban runoff; Physical characteristics

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