HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

Deterioration of modern concrete structures and asphalt pavements by respiratory action and trace quantities of organic matter

This item is licensed under:Creative Commons Attribution 4.0 International

Files in This Item:
moriyoshi_2016-6.pdf407.26 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Deterioration of modern concrete structures and asphalt pavements by respiratory action and trace quantities of organic matter
Authors: Moriyoshi, Akihiro Browse this author →KAKEN DB
Shibata, Eiji Browse this author →KAKEN DB
Natsuhara, Masahito Browse this author
Sakai, Kiyoshi Browse this author →KAKEN DB
Kondo, Takashi Browse this author →KAKEN DB
Kasahara, Akihiko Browse this author
Issue Date: 13-May-2021
Publisher: PLOS
Journal Title: PLOS ONE
Volume: 16
Issue: 5
Start Page: e0249761
Publisher DOI: 10.1371/journal.pone.0249761
Abstract: In concrete structures (concrete), damage from cracks, deterioration, amorphization, and delamination occur in some structures, causing disaggregation (concrete changed to very fine particles) and hollowing out of the concrete. In concrete pavements, damage from large amounts of pop-out of aggregate occurs from the surface of the concrete pavement 4–5 hours after spraying of snow melting agent on the surface of the pavement. The damage from disaggregation, blistering, cracks, and peeling-off of a surface course have also been observed in asphalt runways and highways. The damage from disaggregation, cracks and pop-out of aggregate in asphalt pavements and concrete structures have long been seen as strange and unexpected and have defied explanation. As a result of examinations in various experiments, it was concluded that all of the unexplained kinds of damage of both asphalt pavements and concrete structures were caused by Trace Quantities of Organic Matter (TQOM), Air Entrained (AE) water reducing agent in air and/or cement, and surfactant in snow melting agent. The emission sources of TQOM and these organic substances were also identified by chemical analysis for these unexpected and unexplained phenomena. The TQOM includes phthalate compounds (phthalates in the following), amine compounds, phosphate compounds, snow melting agent and Sodium Polyoxyethylene Nonyl phenyl Ether Sulfate (SPNES). SPNES is a surfactant in windshield washer fluid for automobiles. We found that the water content and content of organic matter in damaged asphalt pavements and concrete structures are also important indicators for the damage. Further, a new evaluation method for amorphization was proposed in this study and it appears suitable for evaluating the safety of concrete structures along roads which were exposed to TQOM in severely air-polluted environments.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 森吉 昭博

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University