An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements

As one of the major contributors to the early failures of steel bridge deck pavements, the bonding between steel and asphalt overlay has long been a troublesome issue. In this paper, a novel composite bonding structure was introduced consisting of epoxy resin micaceous iron oxide (EMIO) primer, solv...

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Autores principales:	Xiaoguang Zheng, Qi Ren, Huan Xiong, Xiaoming Song
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/dbc32ac2df794335bf3fa7f9b3b79aba
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spelling	oai:doaj.org-article:dbc32ac2df794335bf3fa7f9b3b79aba2021-11-08T02:35:31ZAn Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements1687-809410.1155/2021/5685710https://doaj.org/article/dbc32ac2df794335bf3fa7f9b3b79aba2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/5685710https://doaj.org/toc/1687-8094As one of the major contributors to the early failures of steel bridge deck pavements, the bonding between steel and asphalt overlay has long been a troublesome issue. In this paper, a novel composite bonding structure was introduced consisting of epoxy resin micaceous iron oxide (EMIO) primer, solvent-free epoxy resin waterproof layer, and ethylene-vinyl acetate (EVA) hot melt pellets. A series of strength tests were performed to study its mechanical properties, including pull-off strength tests, dumbbell tensile tests, lap shear tests, direct tension tests, and 45°-inclined shear tests. The results suggested that the bonding structure exhibited fair bonding strength, tensile strength, and shear strength. Anisotropic behaviour was also observed at high temperatures. For epoxy resin waterproof layer, the loss of bonding strength, tensile strength, and shear strength at 60°C was 70%, 35%, and 39%, respectively. Subsequent pavement performance-oriented tests included five-point bending tests and accelerated wheel tracking tests. The impacts of bonding on fatigue resistance and rutting propagation were studied. It was found that the proposed bonding structure could provide a durable and well-bonded interface and was thus beneficial to prolong the fatigue lives of asphalt overlay. The choice of bonding materials was found irrelevant to the ultimate rutting depth of pavements. But the bonding combination of epoxy resin waterproof and EVA pellets could delay the early-stage rutting propagation.Xiaoguang ZhengQi RenHuan XiongXiaoming SongHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040ENAdvances in Civil Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Xiaoguang Zheng Qi Ren Huan Xiong Xiaoming Song An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
description	As one of the major contributors to the early failures of steel bridge deck pavements, the bonding between steel and asphalt overlay has long been a troublesome issue. In this paper, a novel composite bonding structure was introduced consisting of epoxy resin micaceous iron oxide (EMIO) primer, solvent-free epoxy resin waterproof layer, and ethylene-vinyl acetate (EVA) hot melt pellets. A series of strength tests were performed to study its mechanical properties, including pull-off strength tests, dumbbell tensile tests, lap shear tests, direct tension tests, and 45°-inclined shear tests. The results suggested that the bonding structure exhibited fair bonding strength, tensile strength, and shear strength. Anisotropic behaviour was also observed at high temperatures. For epoxy resin waterproof layer, the loss of bonding strength, tensile strength, and shear strength at 60°C was 70%, 35%, and 39%, respectively. Subsequent pavement performance-oriented tests included five-point bending tests and accelerated wheel tracking tests. The impacts of bonding on fatigue resistance and rutting propagation were studied. It was found that the proposed bonding structure could provide a durable and well-bonded interface and was thus beneficial to prolong the fatigue lives of asphalt overlay. The choice of bonding materials was found irrelevant to the ultimate rutting depth of pavements. But the bonding combination of epoxy resin waterproof and EVA pellets could delay the early-stage rutting propagation.
format	article
author	Xiaoguang Zheng Qi Ren Huan Xiong Xiaoming Song
author_facet	Xiaoguang Zheng Qi Ren Huan Xiong Xiaoming Song
author_sort	Xiaoguang Zheng
title	An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
title_short	An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
title_full	An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
title_fullStr	An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
title_full_unstemmed	An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements
title_sort	experimental study on a composite bonding structure for steel bridge deck pavements
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/dbc32ac2df794335bf3fa7f9b3b79aba
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An Experimental Study on a Composite Bonding Structure for Steel Bridge Deck Pavements

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