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Title: Optimization of Pervious Concrete Aggregate Properties Using Statistical Approach
Accession Number: 01553021
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Portland cement pervious concrete (PCPC) mixtures contain 15 to 35% voids, 15 to 30% paste and 50 to 65% of aggregate, by volume. The voids in the PCPC mixture are provided from the voids in the aggregate matrix. Designing pervious concrete with certain volumetric compositions (void, paste and aggregate contents) requires selection of aggregate with a particular void content. However, obtaining an aggregate with desired void content directly from single source cannot always be possible. Therefore, it may be necessary to blend different sizes to obtain an aggregate blend with specific void content. Blending aggregate with manual trial-and-error methods can be a time consuming and an expensive procedure. This study shows how PCPC aggregate properties such as; unit-weight, void content, surface area, and pore-diameter can be optimized for desired properties using simplex centroid design. It also shows the application of response surfaces analysis to select aggregate components that yield optimized multiple properties.
Supplemental Notes: This paper was sponsored by TRB committee AFN40 Concrete Materials and Placement Techniques.
Monograph Title: Monograph Accession #: 01550057
Report/Paper Numbers: 15-5626
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Jimma, Betiglu EsheteRangaraju, Prasada RaoPagination: 31p
Publication Date: 2015
Conference:
Transportation Research Board 94th Annual Meeting
Location:
Washington DC, United States Media Type: Digital/other
Features: Figures; References; Tables
TRT Terms: Subject Areas: Highways; Materials; Pavements; I32: Concrete; I36: Aggregates
Source Data: Transportation Research Board Annual Meeting 2015 Paper #15-5626
Files: TRIS, TRB, ATRI
Created Date: Dec 30 2014 1:54PM
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