Journal Published Online: 12 February 2018
Volume 46, Issue 3

Crumb Rubber and Silica Fume Inclusions in Pervious Concrete Pavement Systems: Evaluation of Hydrological, Functional, and Structural Properties

CODEN: JTEVAB

Abstract

The main objective of this research study was to comprehensively investigate the hydrological, functional, and structural characteristics of 21 pervious concrete (PC) mixtures encompassing four dosages of crumb rubber (CR), four proportions of silica fume (SF) contents, and three distinct aggregate gradations. A total of 126 PC cylindrical specimens were available to measure density, porosity, permeability, abrasion resistance, and compressive strength properties. The inclusions of CR and SF in the PC enhanced the compressive strength and abrasion resistance compared to the control unmodified PC specimens. However, CR-modified PC showed reduced permeability because of a decrease in the porosity of those mixes. Nonetheless, the study results did not reach any optimum values of CR or SF replacement and indicated that there is more scope to replace the coarse aggregate with CR and cement with SF so as to identify the optimum dosages of these two modifiers in future. The use of CR in PC as a partial replacement of aggregate can become a potential way of conserving the natural aggregates that are becoming scarce. Furthermore, SF can be used as a partial replacement for cement that will eventually reduce carbon dioxide emissions from cement production, thus being able to achieve the significant use of renewable resources in producing green pavement systems.

Author Information

Mondal, Snehasish
L & T Transportation Infrastructure Independent Company, Chennai, Tamil Nadu, India
Biligiri, Krishna Prapoorna
Department of Civil Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh, India
Pages: 14
Price: $25.00
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Details
Stock #: JTE20170032
ISSN: 0090-3973
DOI: 10.1520/JTE20170032