Experimental Study on Anti-Frozen Durability of Concrete in Saline Soil Region

Abstract:

Aiming at the problem of salt corrosion of concrete used in bridge and foundation in the salted areas of Qinghai province in our country,we study the performance of the prevention of salts corrosion and anti-freeze durability of concrete itself and concrete daubed waterproof materials outside or mixed the materials inside.The high-performance concrete made in this article used waterproof materials to prevent brine penetration and set multi-channel protection. The high-performance concrete specimens for comparison,the specimens daubed waterproof material, and rhe specimens mixed waterproof material inside are made to study the changing regularity under single factor and double factors(freeze and melt + chemical attack, carbonize + freeze and melt). The research results show the high-performance concrete made in this article has good anti-freeze durability and the protective covering of waterproof material can form multi-channel protection and effectively slow frozen corrosion of the concrete.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 1555-1560
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.1555
• Online since: October 2011
• Authors: Wei Feng Jin, Yi Hong Wang, Gang Zhou, Kun Fan
• Keywords: Circulation of Freeze and Melt, Experimental Study, High-Performance Concrete (HPC), Multiple Lines, Solution of Brine, Waterproof Material

References

[1] Powers TC. A wok hypothesis for further frost resistance of concrete of old [J], ACI plos (1954),41:245 ~ 272

[2] PowersTC Helmuth R A.T heoyr of hardened Portlnad cment volume stronger in such Paset floppies [J] Poreeedings, Highway Bodar, true (1953),32:285 ~ 297

[3] Fgaerlund g. Equations for calculating the distance between aggregates copy since particles or air pores in concrete [J].journal of CBI true, (1997) (8)

[4] Tumidajski P.J.and Chan G.W．Durability of high performance concrete in magnesium brine[J]．Cem. and Concr. Res，(1996),26(4)：557-565

DOI: 10.1016/0008-8846(96)00034-8

[5] HongFa Yu.The durability mechanism and prediction method of the service life of the high performance concrete in the salt lake area[D]. Nanjing, southeast university Ph.D. Thesis, (2004)(In Chinese)

[6] HongFa Yu, Wei Sun, WeiFeng Wu, etc.the research of resistance to corrosion and damage of the cold brine mechanism of common concrete in salt lake environment[J], journal of silicate (2003),31 (8) : 763 ~ 769(In Chinese)

[7] BingJun Xie,ChunFang Lei.the application of XYPEX waterproofing materials (isa Perth) in Beijing YingLan international financial centre project[J].architectural technology, (2009),40 (7) : 614 ~ 616(In Chinese)

[8] Ru Mu.The durability and the prediction of the service life of the concrete under the compound impact of freeze-thaw cycle, external bending stress and salt solution[D].Nanjing, southeast university Ph.D. Thesis, (2000)(In Chinese)

[9] Long-term performance and durability test method of the ordinary concrete(GBJ82-85). The People's Republic of China national standards(In Chinese)