Experimental Study on Interfacial Antifreeze Performance of UHPC and Normal Concrete

Abstract

Abstract: Ultra high performance concrete (UHPC) is considered to be the most promising material for structural repair due to its high strength and excellent durability. At the same time, the interfacial bonding performance between UHPC and normal concrete (NC) is the key to the reliability of applying UHPC in concrete reinforcement and repair engineering. To achieve the interfacial behavior of UHPC-NC under serve cold environment, freeze-thaw cycle tests were carried out on UHPC-NC bonding specimens at －60 ℃. The macroscopic morphological changes and mass change rates of the specimens after the freeze-thaw cycles were obtained. Meanwhile, based on the tensile bonding test, the bonding strength and failure mode were analyzed. Moreover, the interface damage mechanism of UHPC-NC specimen under freeze-thaw action was also preliminarily explored. The influence of －60 ℃ freeze-thaw cycles on the interface bonding performance of UHPC-NC specimens, and the influence of different treatment methods of the interface (brush, water jet and splitting) against the －60 ℃ freeze-thaw cycles were presented. The test results show that the －60 ℃ freeze-thaw environment has a great influence on the bonding strength of UHPC-NC specimens. The interface bonding strength decreases rapidly first and then slowly. After 10 freeze-thaw cycles, 15 freeze-thaw cycles and 20 freeze-thaw cycles, the interface bond strength of the splitting group decrease to 72.94%, 55.62% and 44.33% of the benchmark interface bond strength, respectively. The higher the interface roughness, the greater the residual bond strength of the interface. After 20 freeze-thaw cycles, the bond strength of the splitting group is 2.03 times than that of the water jet sample.

Key words: UHPC, normal concrete, interfacial bonding, antifreeze performance, interface processing mode, reinforcement and repair engineering

CLC Number:

TU528

XIE Jian, CHEN Yujie, SUN Yadan. Experimental Study on Interfacial Antifreeze Performance of UHPC and Normal Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 3945-3955.

References

[1] QIAO Y, WANG H F, CAI L C, et al. Influence of low temperature on dynamic behavior of concrete[J]. Construction and Building Materials, 2016, 115: 214-220.
[2] 任宝双,张翼.南极长城站现有建筑损伤特点及原因分析[J].工程建设与设计,2006(11):9-13.
REN B S, ZHANG Y. Analysis of damage characteristics and causes of existing buildings in Antarctica Great Wall Station[J]. Construction & Design for Project, 2006(11): 9-13 (in Chinese).
[3] 王俊颜,郭君渊,肖汝诚,等.高应变强化超高性能混凝土的裂缝控制机理和研究[J].土木工程学报,2017,50(11):10-17.
WANG J Y, GUO J Y, XIAO R C, et al. Study on crack control mechanism of strain-hardening ultra-high performance concrete[J]. China Civil Engineering Journal, 2017, 50(11): 10-17 (in Chinese).
[4] KUSUMAWARDANINGSIH Y, FEHLING E, ISMAIL M. UHPC compressive strength test specimens: cylinder or cube? [J]. Procedia Engineering, 2015, 125: 1076-1080.
[5] GU C P, YE G, SUN W. Ultrahigh performance concrete-properties, applications and perspectives[J]. Science China Technological Sciences, 2015, 58(4): 587-599.
[6] DOBIAS D, PERNICOVA R, MANDLIK T. Water transport properties and depth of chloride penetration in ultra high performance concrete[J]. Key Engineering Materials, 2016, 711: 137-142.
[7] ALONSO C, CASTELLOTE M, LLORENTE I, et al. Ground water leaching resistance of high and ultra high performance concretes in relation to the testing convection regime[J]. Cement and Concrete Research, 2006, 36(9): 1583-1594.
[8] GU C P, SUN W, GUO L P, et al. Effect of curing conditions on the durability of ultra-high performance concrete under flexural load[J]. Journal of Wuhan University of Technology-Mater Sci Ed, 2016, 31(2): 278-285.
[9] WANG Y, AN M Z, YU Z R, et al. Durability of reactive powder concrete under chloride-salt freeze-thaw cycling[J]. Materials and Structures, 2016, 50(1): 1-9.
[10] XIE J, FU Q H, YAN J B. Compressive behaviors of concrete stub columns with SFRCC jacket under cold-region marine environments[J]. Journal of Cold Regions Engineering, 2020, 34(3): 04020021.
[11] HARRIS D K, CARBONELL MUOZ M A, GHEITASI A, et al. The challenges related to interface bond characterization of ultra-high-performance concrete with implications for bridge rehabilitation practices[J]. Advances in Civil Engineering Materials, 2014: 20140034.
[12] HARRIS D K, SARKAR J, AHLBORN T T M. Characterization of interface bond of ultra-high-performance concrete bridge deck overlays[J]. Transportation Research Record: Journal of the Transportation Research Board, 2011, 2240(1): 40-49.
[13] JANG H O, LEE H S, CHO K, et al. Experimental study on shear performance of plain construction joints integrated with ultra-high performance concrete (UHPC)[J]. Construction and Building Materials, 2017, 152: 16-23.
[14] ZHANG Y, ZHANG C Y, ZHU Y P, et al. An experimental study: various influence factors affecting interfacial shear performance of UHPC-NSC[J]. Construction and Building Materials, 2020, 236: 117480.
[15] CARBONELL MUOZ M A, HARRIS D K, AHLBORN T M, et al. Bond performance between ultrahigh-performance concrete and normal-strength concrete[J]. Journal of Materials in Civil Engineering, 2014, 26(8): 04014031.
[16] 中华人民共和国住房和城乡建设部,国家市场监督管理总局.混凝土物理力学性能试验方法标准: GB/T 50081—2019[S].北京:中国建筑工业出版社,2019.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China, State Administration for Market Supervision and Administration. Standard for test methods of physical and mechanical properties of concrete: GB/T 50081—2019[S]. Beijing: China Construction Industry Press, 2019 (in Chinese).
[17] 中华人民共和国住房和城乡建设部.普通混凝土长期性能和耐久性能试验方法标准: GB/T 50082—2009[S].北京:中国建筑工业出版社,2009.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard for long-term performance and durability test methods of ordinary concrete: GB/T 50082—2009[S]. Beijing: China Construction Industry Press, 2009 (in Chinese).
[18] 沈捷.活性粉末混凝土与普通混凝土的粘结性能研究[D].北京:北京交通大学,2016:15-16.
SHEN J. The study on bonding behaviors of reactive powder concrete and ordinary concrete[D]. Beijing: Beijing Jiaotong University, 2016: 15-16 (in Chinese).
[19] SPRINKEL M M, OZYILDIRIM C. Evaluation of high performance concrete overlays placed on route 60 over lynnhaven inlet in Virginia[R]. Virginia Transportation Research Council, VA, USA, 2000.
[20] 李庚英,谢慧才,熊光晶.混凝土修补界面的微观结构及与宏观力学性能的关系[J].混凝土,1999(6):13-18.
LI G Y, XIE H C, XIONG G J. Microstructure of concrete repair interface and its relationship with macroscopic mechanical properties[J]. Concrete, 1999(6): 13-18 (in Chinese).
[21] FENG S, XIAO H G, LI H. Comparative studies of the effect of ultrahigh-performance concrete and normal concrete as repair materials on interfacial bond properties and microstructure[J]. Engineering Structures, 2020, 222: 111122.
[22] POWERS T C. The mechanisms of frost action in concrete[R]. Detroit: ACI, 1965: 42-47.