Combined effect of damage during installation and abrasion on the tensile behaviour of geotextiles

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

Maria de Lurdes Lopes (Author) FEUP; Pinho Lopes, M (Author) Other

Conference proceedings International

Title: 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

Pages: 773-776

9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

Guaruja, 23 May 2010 through 27 May 2010

Indexing

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Civil engineering

Other information

Authenticus ID: P-009-SB1

Abstract (EN): Damage during installation and abrasion are two mechanical agents that influence short and long term behaviour of geosynthetics. Traditionally, the effects of damage during installation (DDI) and of abrasion on the behaviour of geosynthetics are evaluated separately. However, as even when good construction practices are followed some DDI of geosynthetics is almost inevitable, the combined effect of DDI and other degradation agents must be studied. In this paper two intact non woven spunbounded geotextiles, with different mass per unit area (m.u.a.), were, firstly, damage during installation, according with the standard ENV ISO 10722-1: 1997, and the retained tensile strength of the materials measured. Nowadays, there is a more recent version of this standard (EN ISO 10722: 2007); however the test conditions here included are less severe. Then, the intact geotextiles were submitted to abrasion, according with EN ISO 13427 standard, and the retained tensile strength of the materials defined. Finally, the damaged during installation geotextiles were submitted to abrasion and the retained tensile strength of the materials measured. It was observed that when evaluated separately, DDI influence on geotextiles tensile strength is much higher than abrasion. It was also concluded that the synergetic effect (positive or negative) of the combined effect of DDI and abrasion on the tensile strength of geotextiles depends on the m.u.a.of the geosynthetics. The synergetic effect is negative for the geotextile with lower m.u.a. and positive for the geotextile with higher m.u.a.

Language: English

Type (Professor's evaluation): Scientific