[3] [3] GAO Shulin, ZHAO Xiaochong, QIAO Jinlin, et al. Study on the bonding properties of Engineered Cementitious Composites (ECC) and existing concrete exposed to high temperature［J］. Constr Build Mater, 2019, 196(30): 330-344.

[5] [5] BALOCH W L, SIAD H, LACHEMI M. A review on the durability of concrete-to-concrete bond in recent rehabilitated structures［J］. J Build Eng, 2021, 44: 103315.

[7] [7] FENG Shuo, XIAO Huigang, LI Hui. Comparative studies of the eect of ultrahigh-performance concrete and normal concrete as repair materials on interfacial bond properties and microstructure［J］. Eng Struct, 2020, 222(1): 111122.

[8] [8] HE Yan, ZHANG Xiong, RD Hooton, et al. Effects of interface roughness and interface adhesion on new-to-old concrete bonding［J］. Constr Build Mater, 2017, 151(1): 582-590.

[9] [9] ZHOU Jian, YE Guang, VAN BREUGEL K. Cement hydration and microstructure in concrete repairs with cementitious repair materials［J］. Constr Build Mater, 2016, 112(1): 765-772.

[12] [12] XUE Shanbin, ZHANG Peng, LEHMANN E H, et al. Neutron radiography of water exchange across the interface between old and fresh mortar［J］. Measurement, 2021, 183: 109882.

[13] [13] XUE Shanbin, MENG Fanqiang, ZHANG Peng, et al. Influence of substrate moisture conditions on microstructure of repair mortar and water imbibition in repair-old mortar composites［J］. Measurement, 2021, 183: 109769.

[14] [14] LUKOVIC M, YE G. Effect of moisture exchange on interface formation in the repair system studied by X-ray absorption［J］. Materials, 2016, 9(2): 1-17.

[15] [15] SNOECK D, VELASCO L F, MIGNON A, et al. The influence of different drying techniques on the water sorption properties of cement-based materials［J］. Cem Concr Compos, 2014, 64: 54-62.

[16] [16] CRISTINA Z, NORBERT R. Are concrete-concrete bond tests comparable?［J］. Cem Concr Compos, 2019, 99: 80-88.

[17] [17] FENG Shuo, XIAO Huigang, MA Minglei, et al. Experimental study on bonding behaviour of interface between UHPC and concrete substrate［J］. Constr Build Mater, 2021, 311(13): 125360．

[19] [19] SHEN Yanjun, WANG Yongzhi, WEI Xin, et al. Investigation on meso-debonding process of the sandstone-concrete interface induced by freeze-thaw cycles using NMR technology［J］. Constr Build Mater, 2020, 252(20): 118962.

[20] [20] ZHAO Haitao, XIAO Qin, LIU Jiaping, et al. Pore structure characterization of early-age cement pastes blended with high-volume fly ash［J］. Constr Build Mater, 2018, 189(20): 934-946.

[23] [23] MALAYA C, SREEDEEP S. Critical evaluation of the drying water retention characteristics of a class F indian fly ash［J］. J Mater Civ Eng, 2012, 24(4): 451-459.

[24] [24] ZHOU Jian. Performance of Engineered Cementitious Composites for Concrete Repairs［D］. Delft University of Technology,2010.

[25] [25] CRISTINA Z, NEMKUMAR B, GIOVANNI P. A study of some factors affecting bond in cementitious ber reinforced repairs［J］. Cem Concr Res, 2014, 63: 117-126.

[28] [28] NEDUNURI S, SERTSE S, MUHAMMAD S. Microstructural study of Portland cement partially replaced with y ash, ground granulated blast furnace slag and silica fume as determined by pozzolanic activity［J］. Constr Build Mater, 2020, 238(30): 117561.

[29] [29] HANS B, BJRN H, MARCO T. The inuence of substrate moisture preparation on bond strength of concrete overlays and the microstructure of the OTZ［J］. Cem Concr Res, 2017, 92: 84-91.

[30] [30] SCRIVENER K, SNELLINGS R, LOTHENBACH B. A Practical Guide to Microstructural Analysis of Cementitious Materials［M］. London: CRC Press, 2016.

[31] [31] YAO Yanbin, LIU Dameng, CHE Yao, et al. Petrophysical characterization of coals by low-eld nuclear magnetic resonance(NMR)［J］. Fuel, 2010, 89(7): 1371-1380.

[33] [33] ZHANG Jianchao, LIN Chen, DONG Biqin, et al. Inverse modeling deduction of pore distribution in cement materials from capillary absorption features［J］. Cem Concr Compos, 2020, 109: 103557.