Research on Cement Concrete Bridge Asphalt Pavement Compaction Technology

2014 ◽  
Vol 599 ◽  
pp. 224-229 ◽  
Author(s):  
Xiao Meng Ying ◽  
Deng Feng Zhang ◽  
Qin Yong Li ◽  
Lin Chun Meng
Keyword(s):  
Bridge Deck ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Concrete Bridge ◽  
Bridge Structure ◽  
Cement Concrete ◽  
Construction Quality ◽  
Concrete Bridge Deck

Based on influence of bridge structure caused by vibrating compaction and the properties of road roller, the combination of vibrating compaction and rubber-tyred kneading rolling can ensure the construction quality of cement concrete bridge deck asphalt mixture surfacing. It can guarantee the smoothness of asphalt mixture surfacing and avoid the shortage of compaction.

scholarly journals Interlaminar Bonding Properties on Cement Concrete Deck and Phosphorous Slag Asphalt Pavement

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1427 ◽  
Author(s):  
Guoping Qian ◽  
Shunjun Li ◽  
Huanan Yu ◽  
Xiangbing Gong
Keyword(s):  
Bridge Deck ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Fine Aggregate ◽  
Cement Concrete ◽  
Bonding Properties ◽  
The Impact ◽  
Phosphorous Slag ◽  
Bridge Deck Pavement ◽  
Concrete Deck

The slippage damage caused by weak interlaminar bonding between cement concrete deck and asphalt surface is a serious issue for bridge pavement. In order to evaluate the interlaminar bonding of cement concrete bridge deck and phosphorous slag (PS) asphalt pavement, the shear resistance properties of the bonding layer structure were studied through direct shear tests. The impact of PS as a substitute of asphalt mixture aggregate, interface characteristics, normal pressure, waterproof and cohesive layer types, temperature and shear rate on the interlaminar bonding properties were analyzed. The test results indicated that the interlaminar bonding of bridge deck pavement is improved after asphalt mixture fine aggregate was substituted with PS and PS powder, and the result indicated that the shear strength of grooved and aggregate-exposed interfaces is significantly higher than untreated interface, the PS micro-powder or anti-stripping agent can also improve the adhesion between layers when mixed into SBS asphalt. This study provided important theoretical and practical guidance for improving the shear stability of bridge deck pavement.

Impermeable Asphalt Concrete Layer to Protect and Seal Concrete Bridge Decks

2019 ◽  
Vol 2673 (6) ◽  
pp. 355-367 ◽  
Author(s):  
Matthew A. Haynes ◽  
Erdem Coleri ◽  
Shashwath Sreedhar
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Structural Integrity ◽  
Bridge Decks ◽  
Asphalt Mixture ◽  
The United States ◽  
Concrete Bridge ◽  
Freeze Thaw ◽  
Concrete Bridge Decks ◽  
Concrete Bridge Deck

Deterioration of the concrete bridge deck is one of the most significant problems affecting the service life of bridges in the United States (U.S.). The early failure of asphalt pavement overlays on concrete bridge decks with spray-on waterproofing membranes has been recognized as a significant issue by the Oregon Department of Transportation (ODOT). Potential reasons for the failure of the asphalt overlays were thought to be the poor adhesion between the waterproofing membrane and the asphalt-wearing course, and the material properties of the asphalt layer. Moisture penetration into the asphalt overlay and standing water on the concrete bridge deck result in expansion and contraction at the interface on the bridge deck during freeze-thaw cycles. Expansion and contraction because of freeze-thaw cycles cause debonding at the interface and result in an increased rate of deterioration for the asphalt concrete overlay. Additionally, the de-icing salts used to prevent hazardous roadway surfaces in the winter permeate into the deck and cause corrosion of the steel reinforcement, weakening the structural integrity of the bridge. The main goal of this study is to develop an impermeable asphalt mixture with high cracking and rutting resistance that can seal and protect the concrete bridge deck by preventing water and de-icing salts from penetrating into the concrete deck. Permeability of developed asphalt mixtures was quantified by permeability testing and moisture sensor measurements. Rutting and cracking resistance of the developed impermeable asphalt mixture strategies were also evaluated by conducting flow number (FN) and semi-circular bend (SCB) tests in the laboratory.

Research on Reasonable Structure of Cement Concrete Bridge Deck Pavement in Cold Region

ICCTP 2010 ◽  
2010 ◽  
Author(s):  
Zhen-wu Shi ◽  
Wei Li ◽  
Li-ming Wang ◽  
Moatasim ◽  
Yong-fei Feng
Keyword(s):  
Bridge Deck ◽  
Concrete Bridge ◽  
Cold Region ◽  
Cement Concrete ◽  
Concrete Bridge Deck ◽  
Bridge Deck Pavement

scholarly journals Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6838
Author(s):  
Petr Lehner ◽  
Marie Horňáková ◽  
Kristýna Hrabová
Keyword(s):  
Sensitivity Analysis ◽  
Bridge Deck ◽  
Concrete Bridge ◽  
Bridge Structure ◽  
Self Compacting Concrete ◽  
Reinforced Concrete Bridge ◽  
Aggressive Environment ◽  
Different Types ◽  
Ideal Tool ◽  
Concrete Bridge Deck

Probabilistic procedures considering the durability with respect to corrosion of reinforcement caused by aggressive substances are widely applied; however, they are based on narrow assumptions. The aspects need to be evaluated both in terms of the search for suitable application of the various experimental results and in terms of their impact on the result of the stochastic assessment itself. In this article, sensitivity analysis was used as an ideal tool to prove how input parameters affect the results of the evaluation, with consideration of different types of concrete (ordinary or self-compacting with and without fibres). These concretes may be used in aggressive environments, as an industrial floor or as a part of the load-bearing bridge structure. An example of a reinforced concrete bridge deck was selected as the solved structure. The results show that in the case of a classic evaluation, a larger amount of fibre reports a lower resistance of concrete, which contradicts the assumptions. The sensitivity analysis then shows that self-compacting concrete is more sensitive to the values of the diffusion coefficient, and with the consideration of fibres, the effect is even greater.

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