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Keywords: geotextile
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7548-8
...-dimensional geotextile fiber matrix, which hardens upon hydration to a concrete shell. This “dual distinction” multicomponent material is unique. This paper also provides a summary of some of the basic properties of the uncured material (before hydration), followed by an introduction to some important...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-3452-5
ISBN: 978-0-8031-3452-2
... Although geotextiles are increasingly employed in environmental engineering works for their hydraulic and mechanical properties, their influence on the flow and transfer of solutes, such as heavy metals, has not been fully investigated. This article considers the transfer of a tracer...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2860-6
ISBN: 978-0-8031-2860-6
... This paper describes the full-scale laboratory testing (pipe box testing) of a 380-mm-diameter, corrugated, polyethylene toe drain with a knitted geotextile sock, backfilled with a sand envelope material. The test results are compared with previous small-scale and full-scale pipe box tests using...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2860-6
ISBN: 978-0-8031-2860-6
... the pore pressure variation of the soil-geotextile system. By using the modified GR test apparatus, 120 tests were conducted to study the clogging behavior of soil-geotextile system. Four types of needle-punched nonwoven geotextiles and five gap-graded soil mixtures were used in the program. These soils...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2854-1
ISBN: 978-0-8031-2854-5
... Measurement of geotextile deformation allows an in-depth understanding of the behaviour of geotextiles. However, attaching strain gauges to geotextiles poses a challenge as geotextiles are soft and have a fibrous surface. A properly installed strain gauge must not only adhere firmly...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2854-1
ISBN: 978-0-8031-2854-5
... Development of a simple method of testing nonwoven geotextiles in wide-width testing without using complex grips is presented. The technique has been used mainly on 200-mm-wide samples and has been checked using light 500-mm-wide samples (due to machine testing load limitations on the 500 mm...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2047-8
ISBN: 978-0-8031-2047-1
... There are many test methods available to determine the pore sizes of geotextile filters. Often overlooked is the fact that each method provides a different interpretation of a geotextile's pore structure. A survey of the available test methods, indicates that four categories of pores can...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2047-8
ISBN: 978-0-8031-2047-1
... The current status of design of geotextile filters in highway drainage applications is challenged in this paper by virtue of having the actual performance behavior of 91 exhumed field sites. The drainage systems investigated involved mainly highway edge drains in addition to some selected cases...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2047-8
ISBN: 978-0-8031-2047-1
... collection system by 1996. Design of the collection system includes a trench backfilled with granular material wrapped in a geotextile filter. The geotextile filter will be a critical component of the collection system and will be designed to meet soil retention and permeability requirements for the system...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2047-8
ISBN: 978-0-8031-2047-1
... to a multi-story commercial complex. Based on the site experience, the installation of this system was found to be rapid, simple, and cost effective. The results of long-term (3 years) site monitoring made to date have shown good performance of this system. geosynthetic geotextile geocomposite raft...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2047-8
ISBN: 978-0-8031-2047-1
... Dynamic consolidation tests were carried out to simulate the pumping loads acting on road foundations where coarse aggregates are separated from fine subgrade soils by nonwoven geotextiles. The tests were performed in a cylindrical 108 mm diameter consolidation cell loaded at a frequency of 1 Hz...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1863-5
ISBN: 978-0-8031-1863-8
... materials. The difficulties are both in the testing itself, and the use of the results of the testing. The current test method for geotextiles was adopted in 1984. The method uses the xenon-arc type apparatus. Ever since 1984 the Committee has been performing inter-laboratory test programs aimed...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1885-6
ISBN: 978-0-8031-1885-0
... High strength woven polyester geotextiles were tested for manufacturing quality control purposes, and for project approvals.This testing included both single end breaks, and full wide width strength testing. Wide strip tensile strengths were determined using ASTM D4595, “Tensile Properties...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1298-X
ISBN: 978-0-8031-1298-8
... Examination with a scanning electron microscope (SEM) revealed that a single freeze-thaw cycle in distilled water did not damage the fibers of a needle-punched or a heat-bonded geotextile; however, significant soil particle contamination occurred in the needle-punched fabric after being frozen...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1456-7
ISBN: 978-0-8031-1456-2
... laboratories have adapted this method to test geotextiles, geonets, and pipe. Current test practices for these materials are reviewed. Advantages and disadvantages to specific methods are discussed. chemical compatibility geosynthetic geotextile geonet pipe test methods Karen L. Verschoor, David...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1456-7
ISBN: 978-0-8031-1456-2
... Geotextiles have grown substantially, both in number and in application, during the past ten years. The mechanical properties of a specific region along a geotextile roll length are largely dependent upon mass and dimensional characteristics corresponding to that region. Geosynthetic...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1456-7
ISBN: 978-0-8031-1456-2
... A rapid test has been developed to observe the actual filtration performance of nonwoven geotextiles with site-specific soils. The test is a variation of the “Slurry Test” developed by Dr. James L. Sherard, and is performed by replacing the granular medium in Sherards' test with a geotextile...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1456-7
ISBN: 978-0-8031-1456-2
... Despite the increasing use of geotextiles in leachate collection systems, the long-term filtration performance of these materials has yet to be determined. A laboratory testing program was undertaken to investigate biological and particulate clogging of a typical geotextile. Four permeameters...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1456-7
ISBN: 978-0-8031-1456-2
... An investigation in two phases was conducted to characterize and evaluate the cause(s) of field deterioration of both black and white nonwoven polypropylene geotextiles in a municipal landfill. A preliminary determination was made in the first phase that the observed decay varied between...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1987
ISBN-10: 0-8031-0952-0
ISBN: 978-0-8031-0952-0
... The review assesses the existing geotextile tension testing procedures in both North America and Europe with particular reference to the difference between the conditions of local and total stress imposition. In local stress testing, the adaption of the California Bearing Ratio (CBR) soil test...