Research on Shrinkage and Softening Crack Resistance of Glass Fiber Cement Stabilized macadam
[1]GUO Yinchuan,LIU Yiwei,SHEN Aiqin,et al.Research on Shrinkage and Softening Crack Resistance of Glass Fiber Cement Stabilized macadam[J].Journal of Zhengzhou University (Engineering Science),2023,44(05):114-120.[doi:10.13705/j.issn.1671-6833.2023.02.016]
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
44卷
Number of periods:
2023 05
Page number:
114-120
Column:
Public date:
2023-08-20
- Title:
- Research on Shrinkage and Softening Crack Resistance of Glass Fiber Cement Stabilized macadam
- Keywords:
- road engineering; cement stabilized macadam; glass fiber; shrinkage property; softening and crack resistance
- CLC:
- U414
- DOI:
- 10.13705/j.issn.1671-6833.2023.02.016
- Abstract:
- In order to reduce the generation and expansion of reflective cracks in asphalt pavements, to improve the overall crack resistance of asphalt pavements and prolong their service life, glass fibres, which were economically efficient, convenient to obtain and have good toughening effect, were used to improve the shrinkage and crack resistance of cement stabilised macadam, and the effect of glass fibres on the softening and crack resistance of cement stabilised macadam was analysed through drying shrinkage tests, temperature shrinkage tests, bending toughness tests and fracture energy tests. The results of the study showed that three different types of glass fibres were used to improve the shrinkage and cracking resistance of cement stabilised macadam. The results showed that the drying shrinkage coefficients of cement stabilized macadam with three different glass fibre doping levels decreased by 6%, 13% and 16% respectively at 30 d compared with those of ordinary cement stabilized macadam; the average temperature shrinkage coefficients decreased by 6%, 16% and 19%, respectively; the average temperature shrinkage coefficient decreased the most when the glass fibre doping level was increased from 0. 05% to 0. 10%, reaching 10%, and the best improvement effect was achieved at this time. The bending and tensile toughness of the three different glass fibre admixtures increased by 25. 9%, 48. 1% and 150. 0%, respectively; the ultimate breaking load increased by more than 20% and the deflection at breakage increased by 53% after the addition of 0. 10% glass fibre modification compared to ordinary cement stabilised macadam; the fracture energy gain ratio of cement stabilised aggregates reached 1. 225. The addition of glass fibre could effectively inhibit the drying shrinkage and temperature shrinkage deformation of cement stabilised macadam, while the modified cement stabilised macadam were much tougher and consumed much more energy at breakage than ordinary cement stabilised macadam, which was important for enhancing the shrinkage and crack resistance of cement stabilised macadam.
- References:
-
[1] 王雪莲, 黄晓明, 卞国剑. LSPM 对防治半刚性基层 沥青路 面 反 射 裂 缝 机 理 分 析 [ J] . 公 路 交 通 科 技, 2016, 33(7) : 12-18.WANG X L, HUANG X M, BIAN G J. Analysis on mechanism of using LSPM for preventing reflective cracks in asphalt prevent with semi-rigid base [ J ] . Journal of Highway and Transportation Research and Development, 2016, 33(7) : 12-18.[2] SHENG Y P, JIA H C, GUO S C, et al. Effect of brucite fibers and early strength agent on cement stabilized macadam in Alpine regions [ J] . International Journal of Pavement Research and Technology, 2019, 12( 3) : 315 -324.[3] 张蓓, 李海龙, 郭成超, 等. 沥青路面表面裂缝扩展 分析[ J] . 郑州大学学报(工学版) , 2010, 31( 2) : 42 -46.ZHANG B, LI H L, GUO C C, et al. Analysis of surface crack propagation of asphalt pavement [ J ] . Journal of Zhengzhou University ( Engineering Science) , 2010, 31 (2) : 42-46.[4] ZHANG D, TAN K H, DASARI A, et al. Effect of natural fibers on thermal spalling resistance of ultra-high performance concrete[ J] . Cement and Concrete Composites, 2020, 109: 103512.[5] 张鹏, 刘晨辉, 李清富. 聚丙烯纤维水泥稳定碎石力 学性能试验研究[ J] . 郑州大学学报(工学版) , 2010, 31(5) : 44-47.ZHANG P, LIU C H, LI Q F. Experimental study on mechanical properties of cement stabilized crushed stones reinforced with polypropylene fiber[ J] . Journal of Zhengzhou University ( Engineering Science) , 2010, 31 ( 5) : 44-47. [6] YANG J, CHEN B C, NUTI C. Influence of steel fiber on compressive properties of ultra-high performance fiberreinforced concrete[ J] . Construction and Building Materials, 2021, 302: 124104.[7] LYU Z H, SHEN A Q, MENG W N. Properties, mechanism, and optimization of superabsorbent polymers and basalt fibers modified cementitious composite [ J] . Construction and Building Materials, 2021, 276: 122212.[8] 郭寅川, 陈乔森, 申爱琴, 等. 玻璃纤维改善砾石沥 青混合 料 路 用 性 能 [ J ] . 公 路 交 通 科 技, 2018, 35 (8) : 28-33.GUO Y C, CHEN Q S, SHEN A Q, et al. Road performance of glass fiber-improved gravel asphalt mixture [ J] . Journal of Highway and Transportation Research and Development, 2018, 35(8) : 28-33.[9] 董苏波, 韩静云, 郜志海. 纤维对水泥稳定碎石基材 抗弯拉强度影响试验研究[ J] . 华东公路, 2011( 1) : 25-27.DONG S B, HAN J Y, GAO Z H. Experimental study on influence of fiber-stabilized macadam base material on flexural tensile strength[ J] . East China Highway, 2011 (1) : 25-27.[10] 白云. 玻璃纤维水泥稳定碎石路用性能研究[ D] . 西 安: 长安大学, 2014.BAI Y. Glass fiber cement stabilized aggregate performance study[D] . Xi′an: Chang′an University, 2014. [11] WU W, ZHANG C, WEI S Z. Experimental study on the mechanical performance of cement-stabilized macadam reinforced with fiber [ C] ∥Proceedings 2011 International Conference on Transportation, Mechanical, and Electrical Engineering ( TMEE ) . Piscataway: IEEE, 2011: 1989 -1991.[12] 赵云飞. 纤维对水泥稳定碎石材料性能影响的实验研 究[D] . 合肥: 合肥工业大学, 2021.ZHAO Y F. Experimental study on effect of fiber on properties of cement stabilized macadam [ D] . Hefei: Hefei University of Technology, 2021.[13] ZHANG C, WU W, CHEN R J. Experimental study on the deformation performance of cement-stabilized macadam reinforced with fiber [ J ] . Advanced Materials Research, 2011, 335 / 336: 391-395.[14] 白梅力. 振动法多级嵌挤水泥稳定碎石路用性能及工 程应用研究[D] . 西安: 长安大学, 2015.BAI M L. Study on the performance and engineering application of multi-grade interlock cement stabilized macadam by using vibrating compaction [ D ] . Xi′ an: Chang′an University, 2015.
- Similar References:
Memo
-
Last Update:
2023-09-04