Optimization of parameters affecting horizontal cracking in continuously reinforced concrete pavement (CRCP)

Kim, Kukjoo; Han, Sangyoung; Tia, M Linder; Greene, James

doi:10.1139/cjce-2017-0679

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…Therefore, a rational increase in the BFRP diameter is an effective way to reduce the crack spacing and width of the CRCP with BFRP bars. With the aforementioned range of BFRP spacing (6,8,10,12, and 14 cm) and BFRP diameter (10,12,14,16, and 18 mm), the reinforcement content for each combination of spacing and diameter can be calculated within the range of 0.22% to 1.63%. The relationship between the reinforcement content of BFRP and the crack spacing and width are presented in Figure 10.…”

Section: Reinforcement Content Of Bfrpmentioning

confidence: 99%

“…However, the corrosive property of steel can significantly reduce the bond stiffness of the steel and concrete, causing a decrease in the load transfer efficiency and aggregate interlock between the adjacent concrete slabs, therefore widening the crack width, which is an important indicator for CRCP performance [1,2]. There have been many studies evaluating the crack behavior and structural performance of CRCP [3][4][5][6][7][8][9], indicating that the aggregate type, the reinforcement content and depth, the slab-base friction, and the environmental load, etc., have great effect on the crack spacing and crack width and, as a result, affect the structural performance of the CRCP.…”

Section: Introductionmentioning

confidence: 99%

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Transverse Crack Behavior in Continuously Reinforced Concrete Pavement with Basalt Fiber Reinforcement

Zhang

Huang

2020

Applied Sciences

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Continuously reinforced concrete pavement (CRCP) is a pavement structure with a high performance and long service life. However, the corrosion of the longitudinal steel can result in a poor bond relationship between the steel and the concrete, affecting the load transfer efficiency between the adjacent panels and being responsible for the development of CRCP distresses. Basalt fiber-reinforced polymer (BFRP) is corrosion-resistant and has the potential to be used in CRCP. In this paper, the layout of a CRCP test section with BFRP bars constructed on G330 National Road in Zhejiang Province, China, is presented. An analytical model is proposed to predict the crack behavior of CRCP with BFRP reinforcement, with the predicted results are compared to field-measured ones. A sensitivity analysis of the BFRP design parameters on the crack spacing and crack width is conducted as well. The results show that the mean values for field-measured crack spacing and crack width are 4.85 m and 1.30 mm, respectively, which are higher than the results for traditional CRCP with steel due to the lower elastic modulus of BFRP. The analytical predictions agree reasonably well with the crack survey results. The higher the elastic modulus of BFRP, the reinforcement content (with both BFRP spacing and diameter related), and the bond stiffness coefficient between the BFRP and concrete, the less the crack spacing and crack width will be. Given the same or similar reinforcement content, a lower diameter with a smaller spacing is recommended because of its contribution to a smaller crack spacing and width.

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Section: Reinforcement Content Of Bfrpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transverse Crack Behavior in Continuously Reinforced Concrete Pavement with Basalt Fiber Reinforcement

Zhang

Huang

2020

Applied Sciences

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“…CRCP behaves symmetrically with respect to the center of the two consecutive transverse cracks and the pavement lane under environmental loading [26][27][28][29]. Therefore, one-half of the concrete slab on either side of saw-cuts and another half of the pavement lane are taken into account by considering the appropriate boundary conditions.…”

Section: Geometry Configuration Of the Crcp Segmentmentioning

confidence: 99%

“…Being closer to the outer concrete slab face as per boundary conditions, the tips of shorter saw-cut experiences larger crack strains than those of conventional and longer saw-cut. Crack strain Time (Days) L=200 mm L=400 mm L=600 mm Previous studies on the fatal distress in CRCP showed that most of the punch-out distress occurs in the outer lane of pavement slab [12,18,27,29,38,39,45,46]. It has also been reported that the randomness (the presence of closely spaced and divided cracks) in the transverse crack pattern increases the potential risk of punch-outs development in CRCPs [11,12,16,47,48].…”

Section: Effect Of Saw-cut Length On Early-age Crack Inductionmentioning

confidence: 99%

Numerical Evaluation of Early-Age Crack Induction in Continuously Reinforced Concrete Pavement with Different Saw-Cut Dimensions Subjected to External Varying Temperature Field

et al. 2020

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Since 1970, continuously reinforced concrete pavements have been used in Belgium. The standard design concept for CRCP has been modified through several changes made in the design parameters to eliminate the cluster of closely spaced crack patterns, since these crack patterns lead to the development of spalling and punch-out distresses in CRCPs. Despite adjusting the longitudinal reinforcement ratio, slab thickness, and addition of asphalt interlayer, the narrowly spaced cracks could not be effectively removed. The application of transverse partial surface saw-cuts significantly reduced the probability of randomly occurring cracks in the reconstruction project of the Motorway E313 in Herentals, Belgium. The field investigation has also indicated that the early-age crack induction in CRCP is quite susceptible to the saw-cut depth. Therefore, the present study aims to evaluate the effect of different depths and lengths of the partial surface saw-cut on the effectiveness of crack induction in CRCP under external varying temperature field. For this purpose, the FE software program DIANA 10.3 is used to develop the three dimensional finite element model of the active crack control CRCP segment. The characteristics of early-age crack induction in terms of crack initiation and crack propagation obtained from the FE model are compared and discussed concerning the field observations of the crack development on the active crack control E313 test sections. Findings indicate that the deeper saw-cut with longer cut-lengths could be a more effective attempt to induce the cracks in CRCP in desirable distributions to decrease the risk of spalling and punch-out distresses in the long-term performance of CRCP. These findings could be used as guidance to select the appropriate depth and length of saw-cut for active crack control sections of CRCP in Belgium.

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“…Previous field studies indicated that punch-out is the most severe structural distress in CRCPs [3][4][5][6][7][8]. During the mid-1980s,Texas Department of Transportation addressed this distress by modifying the design and construction practices.…”

Section: Introductionmentioning

confidence: 99%

Optimized Spacing Of The Longitudinal Reinforcement In CRCP To Avoid Horizontal Cracking

Kashif¹,

Winne²,

Khattak³

et al. 2021

Proceedings of the 12th International Conference on Concrete Pavements

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Continuously reinforced concrete pavement (CRCP) is characterized by the absence of transverse contraction joints and the presence of longitudinal and transverse reinforcement. The continuous longitudinal reinforcement holds the transverse cracks, caused by the longitudinal shrinkage of concrete, tightly together and thus provides long term performance with minimal maintenance cost. Field investigations on recently constructed CRCP's in Flanders region of Belgium indicated horizontal cracking in the vicinity of the longitudinal reinforcement under the transverse cracks which eventually causes the punch-out distress at the edge of the pavement slab. This paper shows the results of a finite element (FE) study to investigate the effect of varying longitudinal reinforcement on the risk of horizontal cracking in CRCP under typical Flanders conditions. For this purpose, a (3D) FE model of CRCP is developed using a FE package Diana 10.2. The varying longitudinal reinforcement with a most narrow spacing of 125mm in the outer region of the pavement slab is applied while keeping the same CRCP reinforcement ratio. A comparison is made with the conventional longitudinal reinforcement spacing (170mm). Development of concrete stress in the vicinity of the longitudinal reinforcement is plotted against the different longitudinal steel spacing. Findings show that the stress in concrete near longitudinal reinforcement is significantly reduced up to maximum 17% when the narrow spacing is used. In addition, the steel stress in the longitudinal reinforcing is reduced up to maximum 31.75% in the outer region of the pavement slab.

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Optimization of parameters affecting horizontal cracking in continuously reinforced concrete pavement (CRCP)

Cited by 11 publications

References 7 publications

Transverse Crack Behavior in Continuously Reinforced Concrete Pavement with Basalt Fiber Reinforcement

Transverse Crack Behavior in Continuously Reinforced Concrete Pavement with Basalt Fiber Reinforcement

Numerical Evaluation of Early-Age Crack Induction in Continuously Reinforced Concrete Pavement with Different Saw-Cut Dimensions Subjected to External Varying Temperature Field

Optimized Spacing Of The Longitudinal Reinforcement In CRCP To Avoid Horizontal Cracking

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