吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 783-787.doi: 10.13229/j.cnki.jdxbgxb201503015

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碳化对混凝土碱骨料反应的影响

柳俊哲, 袁伟静, 贺智敏, 巴明芳, 陈剑斌   

  1. 宁波大学 建筑工程与环境学院,浙江 宁波315211
  • 收稿日期:2013-08-12 出版日期:2015-05-01 发布日期:2015-05-01
  • 作者简介:柳俊哲(1964-),男,教授,博士生导师.研究方向:混凝土结构耐久性.
  • 基金资助:
    国家自然科学基金项目(51278255,51478277); 宁波市重大科技计划项目(2013C51006)

Influence of carbonation on alkali-aggregate reaction in concrete

LIU Jun-zhe, YUAN Wei-jing, HE Zhi-min, BA Ming-fang, CHEN Jian-bin   

  1. Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo 315211, China
  • Received:2013-08-12 Online:2015-05-01 Published:2015-05-01

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摘要： 为了合理地评价混凝土碱骨料反应发生的碱含量,研究了碳化对水泥石中钠离子分布的影响,阐明碳化作用下混凝土碱骨料反应特征。研究结果表明:水泥石碳化之前截面的钠离子分布比较均匀,碳化作用下水泥石中钠离子从碳化区向非碳化区迁移和浓缩,钠离子在碳化区浓度减少,非碳化区浓度升高,碳化界面钠离子浓度最大,显著提高水泥石内未碳化区的钠离子浓度,降低碱骨料反应发生的初始碱含量限制标准,易发生碱骨料反应。

关键词: 建筑工程, 碳化, 钠离子, 迁移, 碱骨料反应

Abstract: In order to reasonably evaluate alkali content generated in alkali-aggregation reaction in concrete, the influence of carbonation on sodium ion concentration distribution inside hardened cement paste was investigated; the alkali-aggregate reaction characteristics in concrete under carbonation were clarified. The results show that sodium chloride distribution is relatively uniform before carbonation; during carbonation process sodium ions in the carbonation area migrate to the non-carbonation area, sodium ion concentration decreases in the carbonation area and increases in the non-carbonation area, and reaches maximum peak value in the carbonation interface. Thus the carbonation increases the sodium ion concentration in non-carbonation area in the concrete and reduces the initial critical sodium ion concentration for alkali aggregate reaction in the concrete that accelerates the alkali aggregate reaction.

Key words: architectural engineering, carbonation, sodium ion, migration of ion, alkali aggregate reaction

中图分类号: 

  • TU528
[1] Fernandesa I, Noronhaa F, Teles M. Microscopic analysis of alkali aggregate reaction products in a 50 year old concrete[J]. Materials Characterization, 2004,53(2-4):295-306.
[2] Sellier A, Bourdarot E, Multon S, et al. Combination of structural monitoring and laboratory tests for the assessment of AAR swelling application to a gate structure dam[J]. ACI Material Journal,2009,106(3):281-290.
[3] Beyene1 M,Snyder A,Lee R J, et al. Alkali silica reaction as a root cause of distress in a concrete made from alkali carbonate reaction potentially susceptible aggregates[J]. Cement and Concrete Research,2013,51(4):85-95.
[4] 谷林涛. 碱骨料反应研究综述[J]. 建筑技术, 2007,38(2):18-21.
Gu Lin-tao. Summary on the research of alkali aggregate reaction[J]. Architecture Technology,2007,38(2):18-21.
[5] Liu Jun-zhe, Li Yu-shun, Lv Li-hua. Effect of anti-freezing admixtures on alkali-silica reaction in mortars[J]. Journal of Wuhan University of Technology(Materials Science Edition),2005,20(2):80-82.
[6] 杨华全,王迎春,曹鹏举,等. 三峡工程混凝土的碱-骨料反应试验研究[J]. 水利学报,2003(1):93-97.
Yang Hua-quan, Wang Ying-chun, Cao Peng-ju, et al. Experimental study on alkali-aggregate reaction of concrete of Three Gorges dam[J]. Journal of Hydraulic Engineering, 2003(1):93-97.
[7] 宿晓萍,王清.复合盐浸-冻融-干湿多因素作用下的混凝土腐蚀破坏[J].吉林大学学报:工学版,2015,45(1):112-120.
Su Xiao-ping,Wang Qing.Corrosion damage of concrete under multi-salt soaking,freezing-thawing and dry-wet cycles[J].Journal of Jilin University(Engineering and Technology Edition),2015,45(1):112-120.
[8] Marques P F, Chastre C. Carbonation service life modelling of RC structures for concrete with Portland and blended cements[J]. Cement and Concrete Composites,2013,37(6):171-184.
[9] Dunanta C F, Scrivener K L. Effects of aggregate size on alkali silica reaction induced expansion[J]. Cement and Concrete Research,2012,42(6):745-751.
[10] Shayan A. Effects of seawater on AAR expansion of concrete[J]. Cement and Concrete Research,2010,40(4):563-568.
[11] Grimal E, Sellier A, Multon S, et al. Concrete modelling for expertise of structures affected by alkali aggregate reaction[J]. Cement and Concrete Research,2010,40(4):502-507.
[12] 蔡跃波,丁建彤,白银. 大坝混凝土对碱骨料反应的自免疫力[J]. 岩土工程学报,2008,30(11):1610-1613.
Cai Yue-bo, Ding Jian-tong, Bai Yin. Self-immunity of dam concrete to alkali aggregate reaction[J]. Chinese Journal of Geotechnical Engineering,2008,30(11):1610-1613.
[13] Lu Du-you , Zhou Xiao-ling, Xu Zhong-zi, et al. Evaluation of laboratory test method for determining the potential alkali contribution from aggregate and the ASR safety of the Three-Gorges dam concrete[J]. Cement and Concrete Research,2006,36(4):1157-1165.
[14] Pignatelli R,Comi C,Monteiro P J M. A coupled mechanical and chemical damage model for concrete affected by alkali silica reaction[J]. Cement and Concrete Research,2013,53(6):196-210.
[15] Yukse C, Ahar R S, Ahari B A, et al. Evaluation of three test methods for determining the alkali-silica reactivity of glass aggregate[J]. Cement and Concrete Composites,2013,38(3):57-64.
[16] Shehataa M H, Thomas M D A. The role of alkali content of Portland cement on the expansion of concrete prisms containing reactive aggregates and supplementary cementing materials[J]. Cement and Concrete Research, 2010,40(4):569-574.
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