[1] Zhong Ke, Zhang Meng, Sun Mingzhi, Han Dingding, et al. Curing and mechanical property of single-componentpolyurethane porous elastic mixture [J]. Journal of Southeast University (English Edition), 2022, 38 (1): 56-61. [doi:10.3969/j.issn.1003-7985.2022.01.009]

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Curing and mechanical property of single-componentpolyurethane porous elastic mixture()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

38

Issue:

2022 1

Page:

56-61

Research Field:

Traffic and Transportation Engineering

Publishing date:

2022-03-20

Info

Title:

Curing and mechanical property of single-componentpolyurethane porous elastic mixture

Author(s):

Zhong Ke;  Zhang Meng;  Sun Mingzhi;  Han Dingding

Research Institute of Highway, Ministry of Transport, Beijing 100088, China

Keywords:

single-component polyurethane;  curing performance;  mechanical performance;  porous elastic mixture

PACS:

U414

DOI:

10.3969/j.issn.1003-7985.2022.01.009

Abstract:

The viscosity-time curve of a single-component polyurethane(PU)was examined to determine the mixing and compacting temperatures of its mixture and investigate the curing and mechanical properties of single-component PU porous elastic mixture(PPEM). The curing properties of the single-component PU and PPEM were studied with Fourier transform infrared spectroscopy(FTIR)and Marshall test. The mechanical properties of PPEM were explored via the following tests: rutting test, 3-point bending test, soaked Marshall stability test, freeze-thaw splitting test, and Cantabro test. The effects of a water bath on the stability of aggregate-PU/asphalt mortar-aggregate systems were evaluated through a pull-out test and a shear test. The results show that the recommended mixing temperatures of toluene diisocyanate and methylene diphenyl diisocyanate range from 75 to 80 ℃ and from 64 to 68 ℃, respectively. Room temperature(25 ℃)can be adopted as the compacting temperature of PPEM. PPEM can be fully cured in 4 d. Nevertheless, the water sprinkle method can obviously shorten the full curing time of PPEM. PPEM exhibites good resistance to rutting, brittle cracking, and raveling. The adhesive and shear strength of aggregate-PU/asphalt mortar-aggregate systems are negatively related to water bath duration.

References:

[1] Hu Z X, Hu X M, Cheng W M, et al. Performance optimization of one-component polyurethane healing agent for self-healing concrete [J].Construction and Building Materials, 2018, 179: 151-159. DOI: 10.1016/j.conbuildmat.2018.05.199.
[2] Huang Y, Bird R, Heidrich O. Development of a life cycle assessment tool for construction and maintenance of asphalt pavements [J].Journal of Cleaner Production, 2009, 17(2): 283-296. DOI: 10.1016/j.jclepro.2008.06.005.
[3] Liu X, Wang J, Huang K, et al. Experimental study on dynamic water grouting of modified water-soluble polyurethane [J].KSCE Journal of Civil Engineering, 2019, 23(9):3897-3906. DOI: 10.1007/s12205-019-0086-2.
[4] Wu M Y, Hu X M, Hu Z X, et al. Two-component polyurethane healing system: Effect of different accelerators and capsules on the healing efficiency of dynamic concrete cracks [J].Construction and Building Materials, 2019, 227: 116700. DOI: 10.1016/j.conbuildmat.2019.116700.
[5] Wu M Y, Hu X M, Zhang Q, et al. Growth environment optimization for inducing bacterial mineralization and its application in concrete healing [J].Construction and Building Materials, 2019, 209: 631-643. DOI: 10.1016/j.conbuildmat.2019.03.181.
[6] Ospina A C, Orozco V H, Giraldo L F, et al.Study of waterborne polyurethane materials under aging treatments. Effect of the soft segment length [J]. Progress in Organic Coatings, 2020, 138: 105357. DOI: 10.1016/j.porgcoat.2019.105357.
[7] Cong L, Wang T, Tan L, et al. Laboratory evaluation on performance of porous polyurethane mixtures and OGFC [J].Construction and Building Materials, 2018, 169: 436-442. DOI: 10.1016/j.conbuildmat.2018.02.145.
[8] Conermann G, Dilger K. Injection bonding of structural components with fast-curing two-component PUR-systems [J].Applied Adhesion Science, 2018, 6(1): 12. DOI: 10.1186/s40563-018-0113-4.
[9] Hao P, Zhang X. Asphalt and asphalt mixtures [M]. Beijing: China Communications Press, 2009: 3-4.(in Chinese)
[10] Sun M. Research on performance of polyurethane porous elastic pavement mixture [D].Nanjing: Southeast University, 2016.(in Chinese)
[11] Dong F, Maganty S, Meschter S J, et al. Effects of curing conditions on structural evolution and mechanical properties of UV-curable polyurethane acrylate coatings [J].Progress in Organic Coatings, 2018, 114: 58-67. DOI: 10.1016/j.porgcoat.2017.09.018.
[12] Das S, Pandey P, Mohanty S, et al. Effect of nanosilica on the physicochemical, morphological and curing characteristics of transesterified castor oil based polyurethane coatings [J].Progress in Organic Coatings, 2016, 97: 233-243. DOI: 10.1016/j.porgcoat.2016.04.012.
[13] Lu G, Renken L, Li T, et al. Experimental study on the polyurethane-bound pervious mixtures in the application of permeable pavements [J].Construction and Building Materials, 2019, 202: 838-850. DOI: 10.1016/j.conbuildmat.2019.01.051.
[14] Wang D, Schacht A, Leng Z, et al. Effects of material composition on mechanical and acoustic performance of poroelastic road surface(PERS)[J].Construction and Building Materials, 2017, 135: 352-360. DOI: 10.1016/j.conbuildmat.2016.12.207.
[15] Li T, Lu G, Wang D, et al.Key properties of high-performance polyurethane bounded pervious mixture [J]. China Journal of Highway and Transport, 2019, 32(4): 158-169. DOI:10.19721/j.cnki.1001-7372.2019.04.013. (in Chinese)
[16] Zhong K, Zhang M, Sun M Z, et al.Curing performance of monocomponent polyurethane porous elastic mixture [C]// International Conference on Energy Science and Chemical Engineering. Dalian, China, 2020: 012065. DOI:10.1088/1755-1315/565/1/012065.

Memo

Memo:

Biography: Ke Zhong(1982—), male, doctor, researcher, k.zhong@rioh.cn.
Foundation item: The Fundamental Research Funds for the Central Research Institute(No. 2020-9054).
Citation: Zhong Ke, Zhang Meng, Sun Mingzhi, et al. Curing and mechanical property of single-component polyurethane porous elastic mixture[J].Journal of Southeast University(English Edition), 2022, 38(1):56-61.DOI:10.3969/j.issn.1003-7985.2022.01.009.

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