Experimental investigation of interface treatment technique on interface shear bond fatigue behavior of Ultra-Thin Whitetopping

Jayakesh, K.; Suresha, S. N.

doi:10.1016/j.conbuildmat.2017.11.057

Cited by 15 publications

(7 citation statements)

References 25 publications

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“…The most frequently used treatments relate to increasing the roughness of the interface, either by milling (for whitetoppings) or by shotblasting (for overlays) [15]. At the laboratory level, interface grooving has also shown good behavior [16]. Bonding agents should be employed very carefully because their coefficient of thermal expansion is usually very different from that of concrete [14] and weak planes might be generated at the interface [8].…”

Section: Load Stressesmentioning

confidence: 99%

“…In recent decades, many studies were carried out to understand the mechanisms of bonding and debonding [5][6][7][8][9][10][11][12][13] and to bring recommendations for the maximization of the interfacial strength between layers in the whitetopping and overlays [8,[14][15][16]. Moreover, some technical reports that give guidelines to select interfacial treatments and good construction practices were also published [4,15,17].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Connectors to Enhance the Interfacial Debonding of Concrete Overlays

López-Carreño

Carrascón²,

Aguado

et al. 2020

Applied Sciences

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Concrete bonded whitetoppings and overlays usually fail due to a loss of bond between the layers as a consequence of direct actions (traffic loads) or indirect actions (temperature differences or shrinkage in the layers). These actions generate stresses in the interface that may exceed the strength capacity of the union between layers. This paper proposed an innovative solution for this problem that consisted of placing mechanical connectors in the overlay interfaces to provide them with post-cracking strength and maintaining the monolithic response of the pavement. Three experimental programs on real-scale pavements with two types of mechanical connectors were studied under heavy traffic in terms of structural performance. Findings reveal that this technique might be an excellent solution to the problem of interfacial debonding.

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Section: Load Stressesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical Connectors to Enhance the Interfacial Debonding of Concrete Overlays

López-Carreño

Carrascón²,

Aguado

et al. 2020

Applied Sciences

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show abstract

“…Investigation of interface treatment technique on interface shear bond fatigue behavior of Ultra-Thin Whitetopping with two interface treatment techniques like groove and piercing method have been also analyzed. The results indicated the increase in debonding leads to decrease in interface shear stress and fatigue performance [12,16,17].…”

Section: Introductionmentioning

confidence: 95%

“…There were hundreds of projects using whitetopping had been documented [10,11]. Overall, it appears from the information gathered that the use of TWT and UTW overlays is on the increase [1,12]. The first examples of modern UTW construction were cited in Europe and in The United States [13][14][15] on highways, roads or in airports because it is thinner and best suited for more lightly loaded pavements including some intersections, ramps, and light aircraft aprons.…”

Section: Introductionmentioning

confidence: 99%

Fine-grained Concrete Mix Design using Statistical Methods for Ultra-thin Whitetopping Overlay Application

Nguyen

2020

Civ Eng J

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Whitetopping is a thin layer structure covering on an existing asphalt pavement to improve resistance to rutting and increase the durability road surface. This thin layer usually made of concrete without coarse aggregate, is used mainly to repair the old damaged asphalt road surface without altering its texture. Due to the high longevity, using this type of concrete for reinforcing and repairing roads in unfavorable climatic conditions as in Vietnam brings technical, economic, environmental effective, and suitable with the trend of sustainable development. This article shows results on mix design of high performance fine - grained concrete used for thin whitetopping overlays from materials available in Vietnam by using statistical methods. The Design Expert 11.0 software was used to evaluate the influence and relationship between the influencing variables such as the ratio Water/Binder and the Sand/Binder ratio and concrete strength through the regression equation determination by experimental planning method. After checking the compatibility, the maximum value of the compressive strength and optimum mix design were found through solving this mathematical model. The concrete with optiumum proportion has good workability, high abrasion resistance; its compressive strength develops rapidly at early age and achieves more than 100MPa at 28 days. Using this Fine-grained concrete will help increasing durability and reduce the maintenance cost in the future.

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“…Therefore, the requirements for them are getting higher and higher, and the construction task is more arduous. However, today's bridges and road construction projects have experienced many problems during construction and operation, and even engineering accidents have occurred [16,17,18]. In order to better repair, maintain, strengthen, and transform bridges and roads, it should collect basic data, fully understand and master the common defects and diseases of bridges and roads, provide the basis for the corresponding technical transformation, demolition and reconstruction, and find out the prevention and control measures to make the bridge and road cause develop faster and better [19,20].…”

Section: Introductionmentioning

confidence: 99%

Common Diseases of Road and Bridge Engineering and Application of Construction Treatment Technology

Li¹,

Xue²,

Du³

et al. 2019

FMR

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The purpose of this study is to understand the common diseases of road and bridge engineering and put forward the corresponding construction treatment technology. In this study, firstly, taking reinforced concrete bridges and roads as examples, several common diseases of road and bridge engineering are introduced. Then, the causes of these common diseases are analyzed. Finally, the control countermeasures of diseases of bridge and road are put forward. That is, the bottom plate of the large-area disease within the treatment range is outsourced with a steel plate, and the high-intensity grout is filled therein; all girder bottom diseases are repaired with acrylic mortar; for the treatment of other local diseases, the construction technology of crack sealing and grouting is adopted; and operation monitoring system is installed. The results show that these construction techniques can prevent and control the common diseases of bridge engineering to a great extent. Therefore, this study has some practical significance.

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Experimental investigation of interface treatment technique on interface shear bond fatigue behavior of Ultra-Thin Whitetopping

Cited by 15 publications

References 25 publications

Mechanical Connectors to Enhance the Interfacial Debonding of Concrete Overlays

Mechanical Connectors to Enhance the Interfacial Debonding of Concrete Overlays

Fine-grained Concrete Mix Design using Statistical Methods for Ultra-thin Whitetopping Overlay Application

Common Diseases of Road and Bridge Engineering and Application of Construction Treatment Technology

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