|Table of Contents|

Chemical Corrosion of Cement Concrete Exposed to Airport Pavement Deicers(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2012年02期
Page:
61-66
Research Field:
Publishing date:

Info

Title:
Chemical Corrosion of Cement Concrete Exposed to Airport Pavement Deicers
Author(s):
MA Hao-xia;  YU Hong-fa;  LU Yi-ting;  LIU Shu-guang;  FU Tong-ren
Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
Keywords:
cement concrete;  airport pavement deicing fluid;  calcium magnesium acetate;  chemical corrosion;  exfoliation
PACS:
TU528.2
DOI:
-
Abstract:
The immersion tests that ordinary Portland concrete(OPC)and high performance concrete(HPC)specimens placed in calcium magnesium acetate(CMA)of 3.5%, 12.5% and 25% mass fraction of solution were carried out, and the mass loss and the relative dynamic elastic modulus were measured. Meanwhile, the surface exfoliative characteristics of specimens were observed, the corrosion resistances between Portland cement HPC and resisting sulfate cement HPC in CMA were compared. The results show that the surface exfoliative phenomenon and the quality loss are the main characteristics of corrosive damage in the CMA, its inner relative dynamic elastic modulus doesn't reduced significantly. The concrete's CMA corrosive exfoliative degree is related with the concentration of CMA solution and the corrosion time. When soaked corrosive time is more than 450 d, the corrosive exfoliative phenomena grow serious when the CMA's concentration becomes greater, the corrosive exfoliative phenomenon is more obvious. The 25% mass fraction of CMA solution has the most severe corrosion in OPC among the three kinds of concrete and the HPC-P·Ⅱ52.5 is better than the HPC-P·HSR42.5. Therefore, the CMA's corrosion and damage to the concrete are the surface corrosion not the interior corrosion, and the research of CMA to the concrete corrosion damage mechanism provides reliable experimental basis for the future. Furthermore, adopting HPC-P·Ⅱ52.5 cement can solve the corrosive and damage problem which caused by the CMA deicing fluid and can provide a basis for the airport pavement HPC's research in the northern region.

References:

[1] 宋聿修,刘雪松.“三北”地区机场水泥混凝土道面损坏原因分析[J].中国民用航空,1995(5):25-26. SONG Yu-xiu,LIU Xue-song.Broke Analysis of Airport Runway in Sanbei Region[J].China Civil Aviation,1995(5):25-26.
[2]MH 3145.49—1998,民用航空器除冰/防冰[S]. MH 3145.49—1998,Civil Aircraft Eliminate/Prevent Freezing[S].
[3]RANGARAJU P R.Mitigation of ASR in Presence of Pavement Deicing Chemicals[R].Clemson:Clemson University,2007.
[4]COLLINS A R.The Destruction of Concrete by Frost[J].Journal of Institution of Civil Engineers,1944,23(1),29-41.
[5]POWERS T C,HELMUTH R A.Theory of Volume Change in Hardened Portland-cement Paste During Freezing[J].Highway Research Board Proceedings,1949,32(8):285-297.
[6]LITVAN G G.Freeze-thaw Durability of Porous Building Materials[R].Philadelphia:American Society for Testing and Materials,1980:293-298.
[7] YU H F,MA H Y,BAI K,et al.Freeze-thaw Durability of Thaw Durability of Portland Cement Concrete Subjected to Airfield Pavement Deicer[C]//RILEM.Proceedings of the 1st International Conference on Microstructure Related Durability of Cementitious Composites.Nanjing:RILEM,2008:721-722.
[8]白 康.水泥混凝土在机场道面除冰液作用下的抗冻性研究[D].南京:南京航空航天大学,2009. BAI Kang.Research on Freezing-thawing Durability of Concrete Subjected to Airfield Pavement Deicer[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2009.
[9]SUTTER L L,PETERSON K R, JULIO-BETANCOURT G,et al.The Deleterious Chemical Effects of Concentrated Deicing Solutions on Portland Cement Concrete[R].Houghton:Michigan Technological University,2008.
[10]杨全兵,杨钱荣.硫酸钠盐结晶对混凝土破坏的影响[J].硅酸盐学报,2007,35(7):877-885. YANG Quan-bing,YANG Qian-rong.Effects of Salt-crystallization of Sodium Sulfate on Deterioration of Concrete[J].Journal of the Chinese Ceramic Society,2007,35(7):877-885.
[11]杨全兵,朱蓓蓉.混凝土盐结晶破坏的研究[J].建筑材料学报,2007,10(4):392-396. YANG Quan-bing,ZHU Bei-rong.Deterioration of Concrete Due to Action of Salt Crystallization[J].Journal of Building Materials,2007,10(4):392-396.
[12]蒋敏强,陈建康,杨鼎宜.硫酸盐侵蚀水泥砂浆动弹性模量的超声检测[J].硅酸盐学报,2005,33(1):126-132. JIANG Min-Qiang,CHEN Jian-kang,YANG Ding-yi.Dynamic Modulus of Cement Mortar in Sulphate Erosion Measured by Ultrasonic Checking[J].Journal of the Chinese Ceramic Society,2005,33(1):126-132.
[13]Transportation Research Board.Comparing Salt and CMA[R].Washington DC:TRB,1991.
[14]DARWIN D,BROWNING J,GONG L,et al.Effects of Deicers on Concrete Deterioration[R].Lawrence:University of Kansas,2007.
[15]SANTAGATA M C,COLLEPARDI M.The Effect of CMA Deicers on Concrete Properties[J].Cement and Concrete Research,2000,30(9):1389-1394.
[16]PETERSON O.A Reply to a Discussion by John Bensted of the Paper “Chemical Effects on Cement Mortar of Calcium Magnesium Acetate as a Deicing Agent”[J].Cement and Concrete Research,1996,26(4):637-639.
[17]刘晓曦,王硕太.机场混凝土道面封缝材料疲劳特性[J].交通运输工程学报,2006,6(1):44-47. LIU Xiao-xi,WANG Shuo-tai.Joint Sealant Fatigue Property of Airport Concrete Pavement[J].Journal of Traffic and Transportation Engineering,2006,6(1):44-47.
[18]敦 晓,岑国平,黄灿华,等.机场道面混凝土冻融破坏评价指标[J].交通运输工程学报,2010,10(1):13-18. DUN Xiao,CEN Guo-ping,HUANG Can-hua,et al.Evaluation Indices of Freezing-thawing Destruction for Airfield Runway Concrete[J].Journal of Traffic and Transportation Engineering,2010,10(1):13-18.
[19]王观虎,蔡良才,邵 斌,等.机场水泥混凝土道面使用寿命的改进灰色预测模型[J].交通运输工程学报,2009,9(3):45-48. WANG Guan-hu,CAI Liang-cai,SHAO Bin,et al.Modified Gray Prediction Model of Service Life for Airport Cement Concrete Pavement[J].Journal of Traffic and Transportation Engineering,2009,9(3):45-48.
[20]岑国平,马国强,王硕太,等.机场道面合成纤维混凝土的耐久性[J].交通运输工程学报,2008,8(3):43-45. CEN Guo-ping,MA Guo-qiang,WANG Shuo-tai,et al.Durability of Synthetic Fiber Reinforced Concrete for Airport Pavement[J].Journal of Traffic and Transportation Engineering,2008,8(3):43-45.
[21]张 擎,蔡友清,冯 勇.水泥混凝土路面加铺层的疲劳性能[J].长安大学学报:自然科学版,2006,26(4):26-29. ZHANG Qing,CAI You-qing,FENG Yong.Fatigue Performance of Overlay on Concrete Pavement[J].Journal of Chang'an University:Natural Science Edition,2006,26(4):26-29.

Memo

Memo:
-
Last Update: 2012-06-20