Sciences in Cold and Arid Regions ›› 2017, Vol. 9 ›› Issue (4): 384–391.doi: 10.3724/SP.J.1226.2017.00384

• ARTICLES • 上一篇    

Concrete durability under different circumstances based on multi-factor effects

Feng Ming, ChengCheng Du, YuHang Liu, XiangYang Shi, DongQing Li   

  1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
  • 收稿日期:2017-06-21 修回日期:2017-07-21 发布日期:2018-11-23
  • 通讯作者: DongQing Li, Professor, State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences. No. 320, West Donggang Road, Chengguan District, Lanzhou, Gansu 730000, China. Tel: +86-931-4967278; E-mail: dqli@lzb.ac.cn E-mail:dqli@lzb.ac.cn
  • 基金资助:
    This work is supported by the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (QYZDYSSW-DQC015) and the funding of the State Key Laboratory of Frozen Soil Engineering (No. SKLFSE-ZT-17).

Concrete durability under different circumstances based on multi-factor effects

Feng Ming, ChengCheng Du, YuHang Liu, XiangYang Shi, DongQing Li   

  1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
  • Received:2017-06-21 Revised:2017-07-21 Published:2018-11-23
  • Contact: DongQing Li, Professor, State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences. No. 320, West Donggang Road, Chengguan District, Lanzhou, Gansu 730000, China. Tel: +86-931-4967278; E-mail: dqli@lzb.ac.cn E-mail:dqli@lzb.ac.cn
  • Supported by:
    This work is supported by the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (QYZDYSSW-DQC015) and the funding of the State Key Laboratory of Frozen Soil Engineering (No. SKLFSE-ZT-17).

摘要: Concrete durability has become a hot research field in civil engineering. Concrete structures suffer salt-erosion damage to different degrees in the semi-arid region of North China. The environmental condition is one of the important factors affecting the durability of concrete constructions. To realize fully the interaction between various environmental factors, this paper researched concrete durability in the salt environment under combined actions (immersing, freeze–thaw cycles, and wet–dry cycles). According to the laboratory test data, the concrete-durability degradation law under coupling-effect factors was investigated. The results show that concrete's compressive strength decreases with the increase of salt concentration and immersion time. No matter what the environmental conditions were, the compressive strength-loss ratio increased with the test time. The compressive strength-test results indicate that sodium sulfate has the strongest corrosive effect on concrete durability, followed by calcium chloride, with sodium chloride having the weakest corrosion. Compared with the other two environmental factors, the wet–dry cycle is the key factor affecting concrete durability. Therefore, in engineering practice, the influence of environment conditions on the strength and durability of concrete should be taken into full consideration, especially in the wet–dry environment with salt conditions.

关键词: concrete durability, compressive strength, salt solution, wet–dry cycles, freeze–thaw cycles

Abstract: Concrete durability has become a hot research field in civil engineering. Concrete structures suffer salt-erosion damage to different degrees in the semi-arid region of North China. The environmental condition is one of the important factors affecting the durability of concrete constructions. To realize fully the interaction between various environmental factors, this paper researched concrete durability in the salt environment under combined actions (immersing, freeze–thaw cycles, and wet–dry cycles). According to the laboratory test data, the concrete-durability degradation law under coupling-effect factors was investigated. The results show that concrete's compressive strength decreases with the increase of salt concentration and immersion time. No matter what the environmental conditions were, the compressive strength-loss ratio increased with the test time. The compressive strength-test results indicate that sodium sulfate has the strongest corrosive effect on concrete durability, followed by calcium chloride, with sodium chloride having the weakest corrosion. Compared with the other two environmental factors, the wet–dry cycle is the key factor affecting concrete durability. Therefore, in engineering practice, the influence of environment conditions on the strength and durability of concrete should be taken into full consideration, especially in the wet–dry environment with salt conditions.

Key words: concrete durability, compressive strength, salt solution, wet–dry cycles, freeze–thaw cycles

Bassuoni MT, Nehdi ML, 2009. Durability of self-consolidating concrete to different exposure regimes of sodium sulfate attack. Materials and Structures, 42(8): 1039–1057. DOI: 10.1617/s11527-008-9442-2.
Chatterji S, 1984. Freezing of aqueous solutions in a porous medium Part I. Freezing of air-entraining agent solutions. Cement and Concrete Research, 15(1): 13–20. DOI: 10.1016/0008-8846(85)90003-1.
Du P, Yao Y, Wang L, et al., 2014. Research progress on the prediction of concrete’s service life based on freeze-thaw damage. Journal of Yangtze River Scientific Research Institute, 31(4): 77–84. DOI: 10.3969/j.issn.1001-5485.2014.04.017.
Gao RD, Li QB, Zhao SB, 2013. Concrete deterioration mechanisms under combined sulfate attack and flexural loading. Journal of Materials in Civil Engineering, 25(1): 39–44. DOI: 10.1061/(ASCE)MT.1943-5533.0000538.
Hartell JA, Boyd AJ, Ferraro CC, 2011. Sulfate attack on concrete: effect of partial immersion. Journal of Materials in Civil Engineering, 23(5): 572–579. DOI: 10.1061/(ASCE)MT.1943-5533.0000208.
Hong JX, Miao CW, Liu JP, et al., 2012. Degradation law of mechanical properties of concrete subjected to freeze-thaw cycles. Journal of Building Materials, 15(2): 173–178. DOI: 10.3969/j.issn.1007-9629.2012.02.005.
Li WT, Sun W, Jiang JY, 2011. Damage of concrete experiencing flexural fatigue load and closed freeze/thaw cycles simultaneously. Construction and Building Materials, 25(5): 2604–2610. DOI: 10.1016/j.conbuildmat.2010.12.007.
Liang YN, Yuan YS, 2005. Effects of environmental factors of sulfate attack on deterioration of concrete mechanical behavior. Journal of China University of Mining & Technology, 34(4): 452–457. DOI: 10.3321/j.issn:1000-1964.2005.04.010.
Liu WD, Su WT, Wang YM, 2008. Research on damage model of fiber concrete under action of freeze-thaw cycle. Journal of Building Structures, 29(1): 124–128. DOI: 10.3321/j.issn:1000-6869.2008.01.018.
MacInnis C, Whiting JD, 1979. The frost resistance of concrete subjected to a deicing agent. Cement and Concrete Research, 9(3): 325–336. DOI: 10.1016/0008-8846(79)90125-X.
Marchand J, Pigeon M, Bager D, et al., 1999. Influence of chloride solution concentration on deicer salt scaling deterioration of concrete. ACI Materials Journal, 96(4): 429–435. DOI: 10.14359/642.
Ming F, Deng YS, Li DQ, 2016. Mechanical and durability evaluation of concrete with sulfate solution corrosion. Advances in Materials Science and Engineering, 2016: Article ID 6523878. DOI: 10.1155/2016/6523878.
Mu R, Miao CW, Liu JP, et al., 2001. Effect of NaCl and Na2SO4 solution on the frost resistance of concrete and its mechanism. Journal of the Chinese Ceramic Society, 29(6): 523–529. DOI: 10.3321/j.issn:0454-5648.2001.06.004.
Niu DT, 2003. Durability and Life Forecast of Reinforced Concrete Structure. Beijing: Science Press,pp:35–38.
Niu DT, Jiang L, Fei QN, 2013. Deterioration mechanism of sulfate attack on concrete under freeze-thaw cycles. Journal of Wuhan University of Technology-Materials Science Edition, 28(6): 1172–1176. DOI: 10.1007/s11595-013-0839-6.
Qin LK, Song YP, Yu CJ, et al., 2004. Mechanical property and failure criterion for concrete under biaxial compressive stresses after cyclic freezing and thawing. Engineering Mechanics, 21(2): 188–195. DOI: 10.3969/j.issn.1000-4750.2004.02.032.
Qin LK, Song YP, Chen HR, et al., 2005. Influence of freezing and thawing cycle on mechanical properties of concrete. Chinese Journal of Rock Mechanics and Engineering, 24(S1): 5048–5053.
Sun W, Zhang YM, Yan HD, et al., 1999. Damage and its restraint of concrete with different strength grades under double damage factors. Cement and Concrete Composites, 21(5–6): 439–442. DOI: 10.1016/S0958-9465(99)00033-5.
Yan WJ, Niu FJ, Zhang XJ, et al., 2014. Advances in studies on concrete durability and countermeasures against freezing-thawing effects. Sciences in Cold and Arid Regions, 6(4): 398–408. DOI: 10.3724/SP.J.1226.2014.00398.
Zhang YQ, Yu HF, Sun W, et al., 2011. Frost resistance of concrete under action of magnesium sulfate attack. Journal of Building Materials, 14(5): 698–702. DOI: 10.3969/j.issn.1007-9629.2011.05.024.
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