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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 8 Abstracts search results
Document:
SP282
Date:
December 29, 2011
Author(s):
Editor: Charles A. Weiss, Jr.
Publication:
Symposium Papers
Volume:
282
Abstract:
SP-282 This CD-ROM contains seven papers that were presented at sessions sponsored by ACI Committee 522 at the ACI Fall 2009 Convention in New Orleans, LA. The aim of this SP is to present some of the latest research findings on pervious concrete and to provide state-of-the-art examples on the use of pervious concrete. The six papers in this SP present the latest research results from both experimental and numerical studies on various aspects of pervious concrete.
DOI:
10.14359/51683563
SP282-04
December 27, 2011
John T. Kevern, Kejin Wang, and Vernon R. Schaefer
This paper presents the results of studies conducted to develop a self-consolidating Portland Cement Pervious Concrete (PCPC) for overlay applications to reduce roadway noise, reduce splash and spray, and to improve friction as a surface wearing course. A variety of mixture variables were characterized for workability to develop a mixture for mechanized placement. During the fall of 2008, a 100 mm (4 in.) thick pervious concrete overlay on traditional concrete was constructed at a test facility. Construction is described as well as results of field tests to characterize the condition of the pavement seven months following construction. Performance testing of the overlay section included bond strength, permeability, skid resistance, and noise generation. The results of these studies show that effective PCPC overlays can be designed for wearing course applications.
10.14359/51683641
SP282-01
Heather Brown, John Tyner, Ryan Otter, Spring Gilson, Jessie Weatherly and Brent Pilon
Note: This document has been retracted by request of the authors and is no longer available.
10.14359/51683638
SP282-06
Matt Offenberg
One of the key concerns with pervious concrete is the material’s surface durability, specifically resistance to raveling. As the market for pervious concrete grew, this was one of the hurdles to broader adoption of the technology. This paper documents the process of developing a test method to determine the potential raveling resistance of a pervious concrete mixture. The process included a study with lab cast cylinders to compare the raveling resistance potential of pervious concrete mixtures using different aggregates, varying cement contents, and basic chemical admixtures. A refined procedure of the test method was developed after an unsuccessful ASTM round robin evaluation. The results from this new method will provide the industry with beginning correlations between basic mix ingredients and the surface durability of a finished pervious concrete pavement.
10.14359/51683643
SP282-03
Jonathan Thomle and Liv Haselbach
The focus of this study is on the pH changes over time of water in contact with pervious concrete aged under varying ambient air restrictions. Elevated pH levels may be a concern if exfiltrated directly to sensitive waters. This study was conducted to aid designers by determining the rate of pH decline under various conditions. For this study laboratory prepared pervious concrete specimens exposed to three different levels of ambient air were periodically tested for pH using four different testing methods, infiltrating either deionized water or tap water through the specimens, or soaking the specimens in either deionized water or tap water. Obvious trends in pH decline were observed. Greater exposure to ambient air significantly increased the rate of pH decline. The tap water tests represented more typical stormwaters and had much lower pH readings than the deionized water tests. The samples were representative of typical in-place conditions in an arid environment with little buffering and yet the pH declined sufficiently in well under a year.
10.14359/51683640
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