考虑界面过渡区及集料因素的水泥基材料碳化模型

沈奇真; 潘钢华

doi:10.11835/j.issn.2096-6717.2021.190

您当前的位置：

首页 >

文章列表页 >

考虑界面过渡区及集料因素的水泥基材料碳化模型

土木工程 | 更新时间：2023-07-10

- 考虑界面过渡区及集料因素的水泥基材料碳化模型
- Carbonation model of cementitious materials considering interfacial transition zone and aggregate factors
- 土木与环境工程学报 2023年45卷第4期页码：154-162
- 作者机构：
  
  1.鲁东大学土木工程学院，山东烟台 264025
  2.东南大学材料科学与工程学院，南京 211189
- 作者简介：
  
  沈奇真（1988- ），女，博士，主要从事混凝土耐久性研究，E-mail：3510@ldu.edu.cn。
- 基金信息：
  
  山东省自然科学基金(ZR2020QE250)
- DOI：10.11835/j.issn.2096-6717.2021.190
  中图分类号： TU528
- 收稿：2021-05-20，
  
  纸质出版：2023-08-25
- 稿件说明：
移动端阅览
沈奇真, 潘钢华. 考虑界面过渡区及集料因素的水泥基材料碳化模型[J]. 土木与环境工程学报, 2023,45(4):154-162.

SHEN Qizhen, PAN Ganghua. Carbonation model of cementitious materials considering interfacial transition zone and aggregate factors[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 154-162.
沈奇真, 潘钢华. 考虑界面过渡区及集料因素的水泥基材料碳化模型[J]. 土木与环境工程学报, 2023,45(4):154-162. DOI： 10.11835/j.issn.2096-6717.2021.190.

SHEN Qizhen, PAN Ganghua. Carbonation model of cementitious materials considering interfacial transition zone and aggregate factors[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 154-162. DOI： 10.11835/j.issn.2096-6717.2021.190.

摘要

集料和界面过渡区对水泥基材料抗碳化性能有显著影响。基于Fick第二定律，提出一种考虑集料和界面过渡区影响的CO

扩散模型，模型中首次引入界面过渡区的扩散系数并给出相应参数的计算方法，并基于质量守恒定律给出CO

反应模型，利用该模型研究荷载作用下C30和C50混凝土中CO

的浓度分布。结果表明，考虑集料和界面过渡区影响能更准确地计算CO

在水泥基材料中的扩散系数及碳化深度值。通过与文献中的试验数据进行比较，进一步验证了理论模型的可靠性。模型将集料和界面过渡区作为评价混凝土耐久性的重要因素，为钢筋混凝土结构的设计和寿命预测提供依据。

Abstract

Aggregate and interfacial transition zone (ITZ) have significant influence on the carbonation resistance of cementitious materials. Based on Fick's second law

a CO

diffusion model considering the influence of aggregates and ITZ is proposed in this paper

the diffusion coefficient of interfacial transition zone is introduced for the first time and the calculation method of corresponding parameters in this model is given. At the same time

a CO

reaction model is established based on the law of mass conservation

and the CO

concentration distribution in C30 and C50 concrete under load is studied by using this model. The results show that the diffusion coefficient and depth of carbonation of CO

in cementitious materials can be calculated more accurately by considering aggregate and ITZ effects. Finally

the reliability of the theoretical model is further verified by comparing with the experimental data in literature. Therefore

the model takes aggregate and ITZ as important factors to evaluate the durability of concrete

which provides foundation for the design and life prediction of reinforced concrete structures.

关键词

Keywords

references

PAPADAKIS V G , VAYENAS C G , FARDIS M N . A reaction engineering approach to the problem of concrete carbonation [J]. AIChE Journal , 1989 , 35 ( 10 ): 1639 - 1650 .

SOHAIL M G , LAURENS S , DEBY F , et al . Significance of macrocell corrosion of reinforcing steel in partially carbonated concrete: Numerical and experimental investigation [J]. Materials and Structures , 2015 , 48 ( 1/2 ): 217 - 233 .

AGUIAR J B , JÚNIOR C . Carbonation of surface protected concrete [J]. Construction and Building Materials , 2013 , 49 : 478 - 483 .

YOON I S , ÇOPUROĞLU O , PARK K B . Effect of global climatic change on carbonation progress of concrete [J]. Atmospheric Environment , 2007 , 41 ( 34 ): 7274 - 7285 .

韩建德 . 荷载与碳化耦合作用下水泥基材料的损伤机理和寿命预测 [D]. 南京 : 东南大学 , 2012 .

HAN J D . Damage mechanism and service life prediction of cementitious materials under loading carbonation coupling effects [D]. Nanjing : Southeast University , 2012 . (in Chinese)

MORANDEAU A , THIÉRY M , DANGLA P . Investigation of the carbonation mechanism of CH and C-S-H in terms of kinetics, microstructure changes and moisture properties [J]. Cement and Concrete Research , 2014 , 56 : 153 - 170 .

HUANG Q H , JIANG Z L , ZHANG W P , et al . Numerical analysis of the effect of coarse aggregate distribution on concrete carbonation [J]. Construction and Building Materials , 2012 , 37 : 27 - 35 .

SHEN Q Z , PAN G H . The carbonation of cement-based materials with different aggregate content [J]. Materials Science Forum , 2017 , 902 : 74 - 78 .

MASO J C . The bond between aggregates and hydrated cement paste [EB/OL]. https://www.researchgate.net/publication/287474417 https://www.researchgate.net/publication/287474417 .

鄢飞 , 金伟良 , 张亮 . 碳化反应区对混凝土碳化规律的影响 [J]. 工业建筑 , 1999 , 29 ( 1 ): 12 - 16 .

YAN F , JIN W L , ZHANG L . Effect of semi-carbonation zone on concrete carbonation model [J]. Industrial Construction , 1999 , 29 ( 1 ): 12 - 16 . (in Chinese)

CHEN H S , SUN W , STROEVEN P . Interfacial transition zone between aggregate and paste in cementitious composites ( Ⅱ ) [J]. Journal of the Chinese Ceramic Society , 2004 , 32 ( 1 ): 70 - 79 .

BASHEER L , BASHEER P A M , LONG A . Influence of coarse aggregate on the permeation, durability and the microstructure characteristics of ordinary Portland cement concrete [J]. Construction and Building Materials , 2005 , 19 ( 9 ): 682 - 690 .

SHEN Q Z , PAN G H , ZHAN H G . Effect of interfacial transition zone on the carbonation of cement-based materials [J]. Journal of Materials in Civil Engineering , 2017 , 29 ( 7 ): 04017020 .

周欣竹 , 郑建军 . 混凝土界面渗流的集料体积率阈值算法及其影响因素评价 [J]. 硅酸盐学报 , 2007 , 35 ( 10 ): 1342 - 1346 .

ZHOU X Z , ZHENG J J . Algorithm for the aggregate volume fraction threshold of interfacial transition zone percolation in concrete and evaluation of influencing factors [J]. Journal of the Chinese Ceramic Society , 2007 , 35 ( 10 ): 1342 - 1346 . (in Chinese)

MAGHSOODI V , RAMEZANIANPOUR A . Effects of volumetric aggregate fraction on transport properties of concrete and mortar [J]. Arabian Journal Forence & Engineering , 2009 ( 34 ): 327 - 335 .

NILI M , EHSANI A . Investigating the effect of the cement paste and transition zone on strength development of concrete containing nanosilica and silica fume [J]. Materials & Design , 2015 , 75 : 174 - 183 .

LIU L , SHEN D J , CHEN H S , et al . Aggregate shape effect on the diffusivity of mortar: A 3D numerical investigation by random packing models of ellipsoidal particles and of convex polyhedral particles [J]. Computers & Structures , 2014 , 144 : 40 - 51 .

MAEKAWA K , ISHIDA T , KISHI T . Multi-scale modeling of structural concrete [EB/OL]. https://www.researchgate.net/publication/284723933 https://www.researchgate.net/publication/284723933 .

龚洛书 , 苏曼青 , 王洪琳 . 混凝土多系数碳化方程及其应用 [J]. 混凝土及加筋混凝土 , 1985 ( 6 ): 10 - 16 .

GONG L S , SU M Q , WANG H L . Multi-coefficients carbonation equations of concrete and its application [J]. Concrete and reinforced concrete , 1985 ( 6 ): 10 - 16 . (in Chinese)

HYVERT N , SELLIER A , DUPRAT F , et al . Dependency of C-S-H carbonation rate on CO 2 pressure to explain transition from accelerated tests to natural carbonation [J]. Cement and Concrete Research , 2010 , 40 ( 11 ): 1582 - 1589 .

KHUNTHONGKEAW J , TANGTERMSIRIKUL S , LEELAWAT T . A study on carbonation depth prediction for fly ash concrete [J]. Construction and Building Materials , 2006 , 20 ( 9 ): 744 - 753 .

PAPADAKIS V G , VAYENAS C G , FARDIS M N . Physical and chemical characteristics affecting the durability of concrete [J]. ACI Materials Journal , 1991 , 88 ( 2 ): 186 - 196 .

SAETTA A V , SCHREFLER B A , VITALIANI R V . The carbonation of concrete and the mechanism of moisture, heat and carbon dioxide flow through porous materials [J]. Cement and Concrete Research , 1993 , 23 ( 4 ): 761 - 772 .

SAETTA A V , SCHREFLER B A , VITALIANI R V . 2-D model for carbonation and moisture/heat flow in porous materials [J]. Cement and Concrete Research , 1995 , 25 ( 8 ): 1703 - 1712 .

HOUST Y . F. The role of moisture in the carbonation of cementitious materials [J]. Internationale Zeitschrift für Bauinstandsetzen , 1996 ( 2 ): 49 - 66 .

THIERY M , VILLAIN G , DANGLA P , et al . Investigation of the carbonation front shape on cementitious materials: Effects of the chemical kinetics [J]. Cement and Concrete Research , 2007 , 37 ( 7 ): 1047 - 1058 .

HAWKINS N M , AQUINO W . Moisture distribution in partially enclosed concrete [J]. ACI Materials Journal , 2004 , 101 ( 4 ): 259 - 265 .

HOUST Y F , WITTMANN F H . Influence of porosity and water content on the diffusivity of CO 2 and O 2 through hydrated cement paste [J]. Cement and Concrete Research , 1994 , 24 ( 6 ): 1165 - 1176 .

GARBOCZI E J , BENTZ D P . Multiscale analytical/numerical theory of the diffusivity of concrete [J]. Advanced Cement Based Materials , 1998 , 8 ( 2 ): 77 - 88 .

JIANG Z L , HUANG Q H , XI Y P , et al . Experimental study of diffusivity of the interfacial transition zone between cement paste and aggregate [J]. Journal of Materials in Civil Engineering , 2016 , 28 ( 10 ): 04016109 .

DEHGHANPOOR-ABYANEH S , WONG H S , BUENFELD N R . Modelling the diffusivity of mortar and concrete using a three-dimensional mesostructure with several aggregate shapes [J]. Computational Materials Science , 2013 , 78 : 63 - 73 .

JIANG J Y , SUN G W , WANG C H . Numerical calculation on the porosity distribution and diffusion coefficient of interfacial transition zone in cement-based composite materials [J]. Construction and Building Materials , 2013 , 39 : 134 - 138 .

姜璐 , 郑建军 . 混凝土界面百分比计算的Monte Carlo法 [J]. 吉首大学学报(自然科学版) , 2003 , 24 ( 3 ): 27 - 29, 36 .

JIANG L , ZHENG J J . Monte Carlo's approach for the calculation of interfacial transition zone fraction in concrete [J]. Journal of Jishou University (Natural Science Edition) , 2003 , 24 ( 3 ): 27 - 29, 36 . (in Chinese)

KHUNTHONGKEAW J , TANGTERMSIRIKUL S . Model for simulating carbonation of fly ash concrete [J]. Journal of Materials in Civil Engineering , 2005 , 17 ( 5 ): 570 - 578 .

BAHADOR S D , CAHYADI J H . Modelling of carbonation of PC and blended cement concrete [J]. The IES Journal Part A: Civil & Structural Engineering , 2009 , 2 ( 1 ): 59 - 67 .

MAGHSOODI V . W/C ratio profile in ITZ of mortar [J]. Arabian Journal for Science and Engineering , 2018 , 43 ( 4 ): 1817 - 1824 .

MAEKAWA K , CHAUBE R , KISHI T . Modelling of Concrete Performance [M]. London and New York : Routledge , 1999 .

ISHIDA T , IQBAL P O , ANH H T L . Modeling of chloride diffusivity coupled with non-linear binding capacity in sound and cracked concrete [J]. Cement and Concrete Research , 2009 , 39 ( 10 ): 913 - 923 .

DANCHKWERTS P V . Gas-liquid reactions [M]. New York : McGraw-Hill Book Co. , 1970 : 276 .

PAPADAKIS V G , VAYENAS C G , FARDIS M N . Fundamental modeling and experimental investigation of concrete carbonation [J]. ACI Materials Journal , 1991 , 88 ( 4 ): 363 - 373 .

PARK D C . Carbonation of concrete in relation to CO 2 permeability and degradation of coatings [J]. Construction and Building Materials , 2008 , 22 ( 11 ): 2260 - 2268 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

内养护作用下混凝土耐久性研究进展

碱硅酸反应对水泥基材料力学性能的影响

再生细骨料及其混凝土的微观结构特征