Microstructure based life-cycle assessment and durability design of concrete bridges

Koichi Maekawa; Benny Suryanto; Chikako Fujiyama; Nobuhiro Chijiwa

Microstructure based life-cycle assessment and durability design of concrete bridges

Koichi Maekawa, Benny Suryanto, Chikako Fujiyama, Nobuhiro Chijiwa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Moisture and cracks are the two scourges of structural concrete, and understanding the interactions between the two is the key to determine long-term durability performances. This paper firstly deals with moisture migration and its volume change with creep in four inservice PC bridge viaducts that are experiencing excessive deflections by using a-3D integrated micro-material-structural modeling. It is found that moisture-migration related deflections driven by the capillary surface tension and disjoining pressures in micro pores account for 25 to 45% of the macroscopic deflections. These apparent kinematics can be approximated by adding the moisture-related time-dependent deflections to the mechanisticinduced creep by external loads. This paper then deals with water-crack interaction in RC bridge decks under moving loads. It is found that the water presence on the upper deck parts, when subjected to high-speed traffics, can shorten the deck fatigue life by one-and-a-half order of life-span. This reduction in life is due to high water pressure developing over a large numbers of wheel passages as well as the reduced shear transfer along crack planes.

Original language	English
Title of host publication	Proceedings pro083
Subtitle of host publication	2nd International Conference on Microstructural-related Durability of Cementitious Composites
Editors	Guang Ye, K van Breugel, Wei Sun, Changwen Miao
Publisher	RILEM
Pages	20 - 28
Number of pages	9
ISBN (Electronic)	978-2-35158-123-0
ISBN (Print)	978-2-35158-129-2
Publication status	Published - 2012
Event	2nd International Conference on Microstructural-related Durability of Cementitious Composites - Amsterdam, Netherlands Duration: 11 Apr 2012 → 13 Apr 2012

Conference

Conference	2nd International Conference on Microstructural-related Durability of Cementitious Composites
Country/Territory	Netherlands
City	Amsterdam
Period	11/04/12 → 13/04/12

Keywords

Durability
Fatigue
Crack-water interaction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Microstructure based life-cycle assessment and durability design of concrete bridges",

abstract = "Moisture and cracks are the two scourges of structural concrete, and understanding the interactions between the two is the key to determine long-term durability performances. This paper firstly deals with moisture migration and its volume change with creep in four inservice PC bridge viaducts that are experiencing excessive deflections by using a-3D integrated micro-material-structural modeling. It is found that moisture-migration related deflections driven by the capillary surface tension and disjoining pressures in micro pores account for 25 to 45\% of the macroscopic deflections. These apparent kinematics can be approximated by adding the moisture-related time-dependent deflections to the mechanisticinduced creep by external loads. This paper then deals with water-crack interaction in RC bridge decks under moving loads. It is found that the water presence on the upper deck parts, when subjected to high-speed traffics, can shorten the deck fatigue life by one-and-a-half order of life-span. This reduction in life is due to high water pressure developing over a large numbers of wheel passages as well as the reduced shear transfer along crack planes.",

keywords = "Durability, Fatigue, Crack-water interaction",

author = "Koichi Maekawa and Benny Suryanto and Chikako Fujiyama and Nobuhiro Chijiwa",

year = "2012",

language = "English",

isbn = "978-2-35158-129-2",

pages = "20 -- 28",

editor = "Guang Ye and \{van Breugel\}, K and Sun, \{Wei \} and \{Miao \}, \{Changwen \}",

booktitle = "Proceedings pro083",

publisher = "RILEM",

note = "2nd International Conference on Microstructural-related Durability of Cementitious Composites ; Conference date: 11-04-2012 Through 13-04-2012",

}

Maekawa, K, Suryanto, B, Fujiyama, C & Chijiwa, N 2012, Microstructure based life-cycle assessment and durability design of concrete bridges. in G Ye, K van Breugel, W Sun & C Miao (eds), Proceedings pro083: 2nd International Conference on Microstructural-related Durability of Cementitious Composites. RILEM, pp. 20 - 28, 2nd International Conference on Microstructural-related Durability of Cementitious Composites, Amsterdam, Netherlands, 11/04/12.

Microstructure based life-cycle assessment and durability design of concrete bridges. / Maekawa, Koichi; Suryanto, Benny; Fujiyama, Chikako et al.
Proceedings pro083: 2nd International Conference on Microstructural-related Durability of Cementitious Composites. ed. / Guang Ye; K van Breugel; Wei Sun; Changwen Miao . RILEM, 2012. p. 20 - 28.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Microstructure based life-cycle assessment and durability design of concrete bridges

AU - Maekawa, Koichi

AU - Suryanto, Benny

AU - Fujiyama, Chikako

AU - Chijiwa, Nobuhiro

PY - 2012

Y1 - 2012

N2 - Moisture and cracks are the two scourges of structural concrete, and understanding the interactions between the two is the key to determine long-term durability performances. This paper firstly deals with moisture migration and its volume change with creep in four inservice PC bridge viaducts that are experiencing excessive deflections by using a-3D integrated micro-material-structural modeling. It is found that moisture-migration related deflections driven by the capillary surface tension and disjoining pressures in micro pores account for 25 to 45% of the macroscopic deflections. These apparent kinematics can be approximated by adding the moisture-related time-dependent deflections to the mechanisticinduced creep by external loads. This paper then deals with water-crack interaction in RC bridge decks under moving loads. It is found that the water presence on the upper deck parts, when subjected to high-speed traffics, can shorten the deck fatigue life by one-and-a-half order of life-span. This reduction in life is due to high water pressure developing over a large numbers of wheel passages as well as the reduced shear transfer along crack planes.

AB - Moisture and cracks are the two scourges of structural concrete, and understanding the interactions between the two is the key to determine long-term durability performances. This paper firstly deals with moisture migration and its volume change with creep in four inservice PC bridge viaducts that are experiencing excessive deflections by using a-3D integrated micro-material-structural modeling. It is found that moisture-migration related deflections driven by the capillary surface tension and disjoining pressures in micro pores account for 25 to 45% of the macroscopic deflections. These apparent kinematics can be approximated by adding the moisture-related time-dependent deflections to the mechanisticinduced creep by external loads. This paper then deals with water-crack interaction in RC bridge decks under moving loads. It is found that the water presence on the upper deck parts, when subjected to high-speed traffics, can shorten the deck fatigue life by one-and-a-half order of life-span. This reduction in life is due to high water pressure developing over a large numbers of wheel passages as well as the reduced shear transfer along crack planes.

KW - Durability

KW - Fatigue

KW - Crack-water interaction

M3 - Conference contribution

SN - 978-2-35158-129-2

SP - 20

EP - 28

BT - Proceedings pro083

A2 - Ye, Guang

A2 - van Breugel, K

A2 - Sun, Wei

A2 - Miao , Changwen

PB - RILEM

T2 - 2nd International Conference on Microstructural-related Durability of Cementitious Composites

Y2 - 11 April 2012 through 13 April 2012

ER -

Microstructure based life-cycle assessment and durability design of concrete bridges

Abstract

Conference

Keywords

UN SDGs

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