Some synergisms in the laboratory degradation of a polypropylene geotextile

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Jose Ricardo Carneiro (Author) Other; Paulo Joaquim Almeida (Author) FCUP; Maria de Lurdes Lopes (Author) Other

Journal

Title: Construction and Building Materials

Vol. 73

Pages: 586-591

ISSN: 0950-0618

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 19 Citations

ISI Web of Science

Scopus - 20 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences

Other information

Authenticus ID: P-009-X8P

DOI: 10.1016/j.conbuildmat.2014.10.001

Abstract (EN): This paper studies the existence of synergisms between some degradation agents of geotextiles. For that purpose, a polypropylene geotextile (stabilised with Chimassorb 944) was exposed to some degradation tests: immersion in liquids (water, sulphuric and nitric acids, sodium hydroxide and metallic ion solutions), thermo-oxidation and artificial weathering. The geotextile was (1) exposed individually to each degradation agent (single exposure) and (2) exposed successively to some combinations of two agents (multiple exposures). Results showed that, in some cases, the combined action of two degradation agents was more damaging than the sum of the individual effects of each agent. The most relevant examples of this included: (1) immersion in sodium hydroxide and thermo-oxidation, (2) immersion in iron nitrate and thermo-oxidation and (3) immersion in cadmium or copper nitrate and artificial weathering.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6