Effect of bituminous impregnation on nonwoven geotextiles tensile and permeability properties

Correia, Natália; Bueno, Benedito de Souza

doi:10.1016/j.geotexmem.2010.10.004

Cited by 27 publications

(11 citation statements)

References 10 publications

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“…We believe this study will be the basis for further biomimetic studies into the design and manufacture of artificial fibre composites with novel morphologies and associated material properties. After all, these are the same key properties that are important in both standard non-woven fibre composites and other materials for engineering applications [9][10][11][12][13][14]. Cocoon materials have evolved and been optimized in their property combinations and have a wide range of different morphologies with similar silk.…”

Section: Introductionmentioning

confidence: 99%

Structure and physical properties of silkworm cocoons

Chen

Porter

Vollrath

2012

J. R. Soc. Interface.

128

116

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Silkworm cocoons have evolved a wide range of different structures and combinations of physical and chemical properties in order to cope with different threats and environmental conditions. We present our observations and measurements on 25 diverse types of cocoons in a first attempt to correlate physical properties with the structure and morphology of the cocoons. These two architectural parameters appear to be far more important than the material properties of the silk fibres themselves. We consider tensile and compressive mechanical properties and gas permeation of the cocoon walls, and in each case identify mechanisms or models that relate these properties to cocoon structure, usually based upon non-woven fibre composites. These properties are of relevance also for synthetic non-woven composite materials and our studies will help formulate bio-inspired design principles for new materials.

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Section: Introductionmentioning

confidence: 99%

Structure and physical properties of silkworm cocoons

Chen

Porter

Vollrath

2012

J. R. Soc. Interface.

128

116

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“…Furthermore, Correia and Bueno (2011) studied the effect produced on geosynthetics by a bituminous emulsion. In this case, different nonwoven geotextiles made of polyester and polypropylene and a nonwoven polypropylene geotextile reinforced with glass fibre filaments were impregnated with a bitumen emulsion and then subjected to tensile testing, with the aim of evaluating the variation between the secant modulus with and without emulsion.…”

Section: Introductionmentioning

confidence: 99%

Damage evaluation during installation of geosynthetics used in asphalt pavements

Gonzalez-Torre

Calzada-Pérez

Vega-Zamanillo

et al. 2014

Geosynthetics International

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Geosynthetics are commonly used as anti-reflective cracking systems in asphalt pavements. The rehabilitation design methods use the characteristics of as-received geosynthetics as inputs. However, these materials undergo physical damage during their installation due to mechanical and thermal loads which currently are not taken into account in the design processes. These loads can produce a reduction in geosynthetic strength and therefore, it is necessary to know the secant modulus after installation in order to improve the pavement design incorporating these materials. The secant modulus of a material indicates its initial stiffness. This paper describes an experimental study of damage due to installation of five different geosynthetics using three different procedures: (i) mechanical damage induced in the laboratory considering the action of aggregates, (ii) in situ mechanical and thermal damage due to actual installation in a test section, and (iii) a new mechanical and thermal damage experimental test developed with the aim of reproducing the real installation conditions. The main results of the study indicate that the obtained secant modulus of the tested geosynthetics reduced after applying the three damage procedures, and the loss of properties differed depending on the type and constitutive material and on the applied damage procedure.

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“…In Brazil, studies on this alternative solution have also become more frequent (Montestruque et al, 2004;Azambuja 2004;Fritzen 2005;Buhler, 2007;Correia and Bueno 2011;Montestruque et al, 2012;Obando 2012). However, no effective method has been developed to quantitatively assess geosynthetic interlayer systems in asphalt overlays and accurately predict pavement performance (Sanders, 2001;Moses 2011).…”

Section: Geosynthetic-reinforced Flexible Pavementsmentioning

confidence: 99%

“…Asphalt-impregnated fabrics or geosynthetic composites control infiltration of surface water into a pavement and may remain intact after the asphalt overlay has cracked, providing a moisture barrier (Marienfield and Baker, 1999). The paving geosynthetic must be saturated with sufficient asphalt to provide a continuous moisture barrier; insufficient tack would diminish this waterproofing effect (Lytton 1989;Hosseini et al, 2009, Correia and Bueno, 2011, Pasquini et al, 2013. However, if a moisture barrier is necessary, paving fabrics and composites offer this added benefit, which cannot be expected when using geogrids (Button and Lytton, 2007).…”

Section: Mechanisms Of Geosynthetics In Asphalt Overlaysmentioning

confidence: 99%

Performance of flexible pavements enhanced using geogrid-reinforced asphalt overlays

Correia¹

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Effect of bituminous impregnation on nonwoven geotextiles tensile and permeability properties

Cited by 27 publications

References 10 publications

Structure and physical properties of silkworm cocoons

Structure and physical properties of silkworm cocoons

Damage evaluation during installation of geosynthetics used in asphalt pavements

Performance of flexible pavements enhanced using geogrid-reinforced asphalt overlays

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