Joint- or Crack-Opening Resistance Evaluation of Waterproofing Material and System for Structural Sustainability in Railroad Bridge Deck

A joint- or crack-opening resistance evaluation method for the selection of optimal waterproofing material for a railroad bridge deck is proposed. The joint opening range (mm) for the evaluation, and a typical load case of a high-speed double-track railroad bridge structure deck, is analyzed through...

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Bibliographic Details
Published in:Materials 2020-09, Vol.13 (19), p.4229
Main Authors: Oh, Kyu-Hwan, Kim, Soo-Yeon, Park, Yong-Gul
Format: Article
Language:English
Subjects:
Bituminous cements
Bridge decks
Bridges
Case studies
Concrete
Corrosion
Cracks
Design
Finite element method
High speed
High speed rail
Membranes
Polyurethane resins
Protective coatings
Railroads
Railway bridges
Reinforced concrete
Sustainability
Waterproofing
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Summary:A joint- or crack-opening resistance evaluation method for the selection of optimal waterproofing material for a railroad bridge deck is proposed. The joint opening range (mm) for the evaluation, and a typical load case of a high-speed double-track railroad bridge structure deck, is analyzed through the finite element method (FEM) and the results of analysis are used to calculate the minimum opening range. The evaluation method is then demonstrated with 4 commonly used waterproofing types of cementitious membrane system: a polyurethane coating system, self-adhesive asphalt sheet system and synthetic polymerized rubber gel composite asphalt sheet system. Five specimens of each type are subjected to continuous joint opening under 4 different joint width range conditions (1.5, 3.0, 4.5, and 6.0 mm), and the joint-opening resistance performance is compared. The proposal for the evaluation criteria and the specimen test results demonstrate how the evaluation method is pertinent for future selection of waterproofing membranes for the sustainability of high-speed railroad bridge deck structures.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13194229