Crack propagation rule of semi-rigid base of airport pavement based on BOTDA

GAO Jun-qi; GENG Ren-shan; SHENG Yu-xiang; AN Ping; JIN Pei-pei

Volume 17 Issue 1

Turn off MathJax

Article Contents

Article Navigation > Journal of Traffic and Transportation Engineering > 2017 > 17(1): 28-35

Next Previous

GAO Jun-qi, GENG Ren-shan, SHENG Yu-xiang, AN Ping, JIN Pei-pei. Crack propagation rule of semi-rigid base of airport pavement based on BOTDA[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 28-35.

Citation:

GAO Jun-qi, GENG Ren-shan, SHENG Yu-xiang, AN Ping, JIN Pei-pei. Crack propagation rule of semi-rigid base of airport pavement based on BOTDA[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 28-35.

Citation:

PDF( 1401 KB)

Crack propagation rule of semi-rigid base of airport pavement based on BOTDA

1.
Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
2.
Engineering Department of Rizhao Highway Administration, Rizhao 276826, Shandong, China

More Information

Author Bio:
GAOJun-qi(1973-), male, associate professor, PhD, +86-25-84891754, junqi_gao@nuaa.edu.cn
Received Date: 2016-08-25
Publish Date: 2017-02-25

Abstract

Abstract

By the laboratory and field cement-stabilized macadam base crack monitoring tests, the relationship between sensing fiber strain and crack width, crack propagation rule in early stage of semi-rigid base, and crack growth rate were researched based on the distributed BOTDA fiber monitoring technology.Research result shows that when the crack widths are 3, 6and 9mm, the strains measured by the sensing fiber encapsulated with polyurethane are 5.9×10^-3, 7.7×10^-3, and 10.3×10^-3, respectively, the strains measured by the sensing fiber encapsulated with metal matrix are 1.5×10^-3, 1.6×10^-3, and 2.1×10^-3, respectively, and the fiber strain rises with the increase of crack width.When the crack width is 9mm, the strains measured by the sensingfibers encapsulated with polyurethane and metal matrix are 33.2and 6.8times as big as the average value measured by the interval fixed fiber armored with aluminum alloy respectively, so the sensing fibers encapsulated with polyurethane and metal matrix performs better for crack monitoring.In field experiment, in 13 dafter construction, 3 micro cracks were found at 80 m long road section, and the largest temperature difference is 2.1 #C during this period, which indicates that the cracks in the base generate and develope mainly in the first month and the dry shrinkage cracks are dominant.The dry shrinkage stress is the main influence factor of crack generation and crack spacing.In 20, 77 and 139dafter construction, the temperatures at the bottom surface of base layer are 10.3℃, 2.5℃and 9.4℃, respectively, and the corresponding strains measured at the bottom surface of base layer at crack location of K24+656are 4.2×10^-4, 9.5×10^-4 and 4.3×10^-4, respectively.No new cracks emerge in base layer in 139 d, which indicates that the influence of thermal shrinkage stress on early crack spacing is very less, and the thermal shrinkage stress mainly affects the crack width.The thermal shrinkage cracks basically appear at the position where the dry shrinkage stress displays peaks in the dry shrinkage phase.When the upper and lower base layers were constructed continuously, the positons of cracks of top surface and bottom are consistent. Hence, the transverse cracks in cement-stabilized macadam base are always penetrating cracks.Furthermore, the crack growth rate on the top surface is 3.8and 2.8times the values at the middle and bottom positons, respectively, so the crack growth rate on the top surface is biggest.
- airport pavement,
- semi-rigid base,
- cement-stabilized macadam,
- crack propagation,
- sensing fiber

FullText(HTML)

References(27)

References

[1]	SHA Ai-min. Material characteristics of semi-rigid base[J]. China Journal of Highway and Transport, 2008, 21 (1): 1-5. (in Chinese). doi: 10.3321/j.issn:1001-7372.2008.01.001
[2]	LU Song-tao, ZHENG Jian-long, ZHONG Wen-liang. Characteristics of strength, modulus and fatigue damage for cement stabilized macadam in curing period[J]. China Journal of Highway and Transport, 2015, 28 (9): 9-15, 45. (in Chinese). doi: 10.3969/j.issn.1001-7372.2015.09.002
[3]	WANG Yi-qi, TAN Yi-qiu, WANG Kai-sheng, et al. Temperature shrinkage characteristics of cement emulsified asphalt stabilized crushed stones[J]. Journal of Building Materials, 2015, 18 (4): 584-588. (in Chinese). doi: 10.3969/j.issn.1007-9629.2015.04.009
[4]	ZHANG Peng, LI Qing-fu. Experimental study on shrinkage properties of cement-stabilized macadam reinforced with polypropylene fiber[J]. Journal of Reinforced Plastics and Composites, 2010, 29 (12): 1851-1860. doi: 10.1177/0731684409337336
[5]	KODIKARA J, CHAKRABARTI S. Modeling of moisture loss in cementitiously stabilized pavement materials[J]. International Journal of Geomechanics, 2005, 5 (4): 295-303. doi: 10.1061/(ASCE)1532-3641(2005)5:4(295)
[6]	CHO Y H, LEE K W, RYU S W. Development of cementtreated base material for reducing shrinkage cracks[J]. Transportation Research Record, 2006 (1952): 134-143.
[7]	BENTURA, KOVLER K. Evaluation of early age cracking characteristics in cementitious systems[J]. Materials and Structures, 2003, 36 (3): 183-190. doi: 10.1007/BF02479556
[8]	BANTHIA N, GUPTA R. Plastic shrinkage cracking in cementitious repairs and overlays[J]. Materials and Structures, 2009, 42 (5): 567-579. doi: 10.1617/s11527-008-9403-9
[9]	MAALOUF M, KHOURY N, LAGUROS J G, et al. Support vector regression to predict the performance of stabilized aggregate bases subject to wet-dry cycles[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2012, 36 (6): 675-696. doi: 10.1002/nag.1023
[10]	PENEV D, KAWAMURA M. Estimation of the spacing and the width of cracks caused by shrinkage in the cement-treated slab under restraint[J]. Cement and Concrete Research, 1993, 23 (4): 925-932. doi: 10.1016/0008-8846(93)90046-C
[11]	ZENG Meng-lan, LUO Di, WU Chao-fan, et al. Anticracking properties of cement stabilized crushed stone pavement base materials of different aggregate structures[J]. Journal of Hunan University: Natural Sciences, 2013, 40 (10): 1-7. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HNDX201310001.htm
[12]	WANG Hong-chang, HUANG Xiao-ming. Three-dimensional numerical analysis for crack at bottom of asphalt pavement base course[J]. Journal of Highway and Transportation Research and Development, 2005, 22 (12): 1-4. (in Chinese). doi: 10.3969/j.issn.1002-0268.2005.12.001
[13]	WU Gan-chang, LING Tian-qing. The analysis of developing mechanism of thermal crack of the semi-rigid roadbase[J]. China Journal of Highway and Transport, 1998, 11 (1): 21-28. (in Chinese). doi: 10.3321/j.issn:1001-7372.1998.01.004
[14]	PENG Miao-juan, ZHANG Deng-liang, XIA Yong-xu. Computational method and its application of fracture mechanics for the asphalt pavement on semi-rigid type base course[J]. China Journal of Highway and Transport, 1998, 11 (2): 30-38. (in Chinese). doi: 10.3321/j.issn:1001-7372.1998.02.005
[15]	TIMM D H, GUZINA B B, VOLLER V R. Prediction of thermal crack spacing[J]. International Journal of Solids and Structures, 2003, 40 (1): 125-142. doi: 10.1016/S0020-7683(02)00496-1
[16]	ZHANG Peng, LI Qing-fu, LIU Chen-hui. Prediction of shrinkage cracking and corresponding cracking prevention measure of the semi-rigid base layer[J]. International Journal of Pavement Engineering, 2009, 10 (5): 383-388. doi: 10.1080/10298430802342781
[17]	XUAN D X, MOLENAAR A A A, HOUBEN L J M. Shrinkage cracking of cement treated demolition waste as a road base[J]. Materails and Structures, 2016, 49 (1): 631-640.
[18]	LIN Xiu-xian. A study of the bituminous pavement with semi rigid base course[J]. China Journal of Highway and Transport, 1990, 3 (4): 1-13. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL802.004.htm
[19]	GUO Yin-chuan, SHEN Ai-qin, HE Tian-qin, et al. Microcrack propagation behavior of pavement concrete subjected to coupling effect of fatigue load and freezing-thawing cycles[J]. Journal of Traffic and Transportation Engineering, 2016, 16 (5): 1-9. (in Chinese). http://transport.chd.edu.cn/article/id/201605001
[20]	DENG Xue-jun, HUANG Xiao-ming, YANG Jun. The fatigue regular of semi-rigid base course[J]. Journal of Southeast University: Natural Science Edition, 1995, 25 (1): 94-99. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-DNDX501.016.htm
[21]	GAO Jun-qi, SHI Bin, ZHANG Wei, et al. Application of distributed fiber optic sensor to bridge and pavement health monitoring[J]. Journal of Disaster Prevention and Mitigation Engineering, 2005, 25 (1): 14-19. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-DZXK200501002.htm
[22]	QIAN Zhen-dong, HUANG Wei, GUAN Yong-sheng, et al. Application of BOTDA on cracking monitoring for asphalt concrete pavement[J]. Journal of Southeast University: Natural Science Edition, 2008, 38 (5): 799-803. (in Chinese). doi: 10.3321/j.issn:1001-0505.2008.05.012
[23]	QIAN Zhen-dong, HAN Guang-yi, HUANG Wei, et al. A study on crack fatigue propagation of steel deck pavement based on BOTDA[J]. China Civil Engineering Journal, 2009, 42 (10): 132-136. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TMGC200910021.htm
[24]	LIU Wan-qiu, WANG Hua-ping, ZHOU Zhi, et al. Optical fiber-based sensors with flexible encapsulation for pavement behavior monitoring[J]. Structural Control and Health Monitoring, 2015, 22 (2): 301-313.
[25]	ZHANG Deng-liang, ZHENG Nan-xiang. On the antishrinkage cracking performance of semi-rigid base course materials[J]. China Journal of Highway and Transport, 1991, 4 (1): 16-22. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL199101003.htm
[26]	HU Qing. Experimental study on influencing factors of shrinkage and crack resistance properties of cement stabilized macadam[J]. Road Machinery and Construction Mechanization, 2016, 33 (5): 67-70, 75. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZLJX201605027.htm
[27]	YAN Xi-li, AI Tao, YOU Qing-long, et al. Experimental characteristics of heat conduction of semi-rigid base asphalt pavement[J]. Journal of Chang'an University: Natural Science Edition, 2016, 36 (5): 1-7. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL201605001.htm