Life Prediction Model of Mineral Admixture Cement Based-Materials under Early Age CO2-Erosion

被引:0
作者
Wang, Saisai [1 ]
Chen, Jian [1 ]
Wen, Xiaodong [1 ,2 ]
机构
[1] Ningbo Univ Technol, Sch Architecture & Transportat Engn, Ningbo 315211, Peoples R China
[2] Ningbo Univ Technol, Zhejiang Engn Technol Res Ctr Civil Engn Ind Cons, Ningbo 315211, Peoples R China
基金
中国国家自然科学基金;
关键词
CO2; erosion; mineral admixture; early stage; prediction model; evaluation; CARBONATION RESISTANCE; CONCRETE;
D O I
10.3390/coatings11040413
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Most of the existing models of structural life prediction in early carbonized environment are based on accelerated erosion after standard 28 days of cement-based materials, while cement-based materials in actual engineering are often exposed to air too early. These result in large predictions of the life expectancy of mineral-admixture cement-based materials under early CO2-erosion and affecting the safe use of structures. To this end, different types of mineral doped cement-based material test pieces are formed, and early CO2-erosion experimental tests are carried out. On the basis of the analysis of the existing model, the influence coefficient of CO2-erosion of the mineral admixture K-m is introduced, the relevant function is given, and the life prediction model of the mineral admixture cement-based material under the early CO2-erosion is established and the model parameters are determined by using the particle group algorithm (PSO). It has good engineering applicability and guiding significance.
引用
收藏
页数:9
相关论文
共 23 条
[1]   A review on cement degradation under CO2-rich environment of sequestration projects [J].
Abid, Khizar ;
Gholami, Raoof ;
Choate, Paul ;
Nagaratnam, Brabha Hari .
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2015, 27 :1149-1157
[2]  
Chen D., 2014, QUANTITATIVE STUDY C
[3]  
Chen J., 2019, HIGHWAY, V12, P230
[4]  
Chen Z., 2019, B CHIN CERAM SOC, V38, P1681
[5]   Risk of concrete carbonation with mineral industrial by-products [J].
Czarnecki, Lech ;
Woyciechowski, Piotr ;
Adamczewski, Grzegorz .
KSCE JOURNAL OF CIVIL ENGINEERING, 2018, 22 (02) :755-764
[6]   Mechanical and hydration properties of ground granulated blastfurnace slag pastes activated with MgO-CaO mixtures [J].
Gu, Kai ;
Jin, Fei ;
Al-Tabbaa, Abir ;
Shi, Bin ;
Liu, Jin .
CONSTRUCTION AND BUILDING MATERIALS, 2014, 69 :101-108
[7]  
Jia Y., 2010, THES TSINGH U BEIJ
[8]   Performance Based Evaluation of Carbonation Resistance of Concrete According to Various Curing Conditions from Climate Change Effect [J].
Kim, Tae-Kyun ;
Choi, Seung-Jai ;
Kim, Jang-Ho Jay ;
Chu, Yong-Sik ;
Yu, Eunjong .
INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS, 2017, 11 (04) :687-700
[9]   Carbonation of concrete: the role of CO2 concentration, relative humidity and CO2 buffer capacity [J].
Leemann, Andreas ;
Moro, Fabrizio .
MATERIALS AND STRUCTURES, 2017, 50 (01)
[10]  
[罗大明 Luo Daming], 2019, [工程力学, Engineering Mechanics], V36, P1