[1] Li Guo, Dong Lei, Wang Dan, Yan Chenghua, et al. Negative effect improvement of accelerated curingon chloride penetration resistance of ordinary concrete [J]. Journal of Southeast University (English Edition), 2017, 33 (1): 79-85. [doi:10.3969/j.issn.1003-7985.2017.01.013]

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Negative effect improvement of accelerated curingon chloride penetration resistance of ordinary concrete()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

33

Issue:

2017 1

Page:

79-85

Research Field:

Materials Sciences and Engineering

Publishing date:

2017-03-30

Info

Title:

Negative effect improvement of accelerated curingon chloride penetration resistance of ordinary concrete

Author(s):

Li Guo¹;  Dong Lei¹;  Wang Dan¹;  Yan Chenghua²

¹State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
²Jiangsu Dongpu Tubular Pile Co., Ltd., Lianyungang 222346, China

Keywords:

negative effect improvement;  chloride penetration resistance;  ordinary concrete;  accelerated curing

PACS:

TU528.1

DOI:

10.3969/j.issn.1003-7985.2017.01.013

Abstract:

Four mineral admixture concrete specimens were fabricated to study the negative effect improvements of accelerated curing on the chloride penetration resistance of ordinary concrete. After reaching different initial strengths, the specimens were placed in 40, 60, or 80 ℃ water tanks for accelerated curing. The Coulomb values of the specimens were measured with ASTM C1202 experiment at 28, 100, 200, and 300 d. Partial specimens were also selected for rapid chloride ion migration coefficient and mercury intrusion porosimetry experiments. The experimental results show that the accelerated curing for ordinary concrete linearly deteriorates the chloride penetration resistance, whereas the incorporation of mineral admixtures improves the concrete microscopic pore-structures and negative effects. An upper temperature limit of 60 ℃ of the accelerated curing is suitable for obtaining superior chloride penetration resistance for the mineral admixture concrete. Pre-curing at a normal temperature of 20 ℃ is beneficial for improving the negative effect, which is also alleviated with increasing testing age as a result of the successive hydration of binder materials in concrete.

References:

[1] Feng N Q, Chen L X, Ye H W, et al. Design and application of high performance and super-high performance concrete pipe pile [J]. Cement and Concrete Product, 2010(6):25-28.(in Chinese)
[2] Ramezanianpour A A, Khazali M H, Vosoughi P. Effect of steam curing cycles on strength and durability of SCC: A case study in precast concrete [J]. Construction and Building Materials, 2013, 49:807-813. DOI:10.1016/j.conbuildmat.2013.08.040.
[3] Türkel S, Alabas V. The effect of excessive steam curing on Portand composite cement concrete [J]. Cement and Concrete Research, 2005, 35(2):405-411. DOI:10.1016/j.cemconres.2004.07.038.
[4] Balendran R V, Martin-Buades W H. The influence of high temperature curing on the compressive, tensile and flexural strength of pulverized fuel ash concrete [J]. Building and Environment, 2000, 35(5):415-423. DOI:10.1016/j.cemconres.2004.07.038.
[5] Abd-El.Aziz M A, Abd.El.Aleem S, Heikal M. Physico-chemical and mechanical characteristics of pozzolanic cement pastes and mortars hydrated at different curing temperatures [J]. Construction and Building Materials, 2012, 26(1):310-316. DOI:10.1016/j.conbuildmat.2011.06.026.
[6] Zhao H, Sun W, Wu X M, et al. Effect of initial water-curing period and curing condition on the properties of self-compacting concrete [J]. Materials and Design, 2012, 35:194-200. DOI:10.1016/j.matdes.2011.09.053.
[7] Escalante-García J I, Sharp J H. Effect of temperature on the main clinker phases in Portland cements: Part Ⅰ, neat cements [J]. Cement and Concrete Research, 1998, 28(9):1245-1257. DOI:10.1016/s0008-8846(98)00115-x.
[8] Escalante-García J I, Sharp J H. Effect of temperature on the hydration of the main clinker phases in Portland cements: Part Ⅱ, blend cements [J]. Cement and Concrete Research, 1998, 28(9):1259-1274. DOI:10.1016/s0008-8846(98)00107-0.
[9] Kjellsen K O, Detwiler R J, Gjørv O E. Development of microstructures in plain cement pastes hydrated at different temperatures [J]. Cement and Concrete Research, 1991, 21(1):179-189. DOI:10.1016/0008-8846(91)90044-i.
[10] Kim J K, Moon Y H, Eo S H. Compressive strength development of concrete with different curing time and temperature [J]. Cement and Concrete Research, 1998, 28(12):1761-1773. DOI:10.1016/s0008-8846(98)00164-1.
[11] Aldea C M, Young F, Wang K J, et al. Effects of curing conditions on properties of concrete using slag replacement [J]. Construction and Building Materials, 2000, 30(3):465-472. DOI:10.1016/s0008-8846(00)00200-3.
[12] Hooton R D, Titherington M P. Chloride resistance of high-performance concretes subjected to accelerated curing [J]. Cement and Concrete Research, 2004, 34(9):1561-1567. DOI:10.1016/j.cemconres.2004.03.024.
[13] Sha K, Huang Y C. Influence of pre-curing time on steam curing concrete durability [J]. Low Temperature Architecture Technology, 2011(7):15-16.(in Chinese)
[14] Toutanji H A, Bayasi Z. Effect of curing procedures on properties of silica fume concrete [J]. Cement and Concrete Research, 1999, 29(4):497-501. DOI:10.1016/s0008-8846(98)00197-5.
[15] Li G, Yao F, Liu P, et al. Long-term carbonation resistance of concrete under initial high-temperature curing [J]. Materials and Structures, 2016, 49(7):2799-2806. DOI:10.1617/s11527-015-0686-3.
[16] Khatib J M, Mangat P S. Influence of high-temperature and low-humidity curing on chloride penetration in blended cement concrete [J]. Cement and Concrete Research, 2002, 32(11):1743-1753. DOI:10.1016/s0008-8846(02)00857-8.
[17] Chen H J, Huang S S, Tang C W, et al. Effect of curing environments on strength, porosity and chloride ingress resistance of blast furnace slag cement concretes: A construction site study [J]. Construction and Building Materials, 2012, 35:1063-1070. DOI:10.1016/j.conbuildmat.2012.06.052.
[18] Li G, Yuan Y S, Li F M. Accelerating effect of wetting-drying cycles on steel bar corrosion in concrete[J]. Journal of China University of Mining & Technology(English Edition), 2005, 15(3):197-202.
[19] Li G, Otsuki N, Yuan Y S. Effects of fly ash replacement ratios on concrete reinforcement corrosion[J]. Journal of China University of Mining & Technology, 2009, 38(2):149-154.(in Chinese)
[20] Yan C H, Li G, Xia J W. Influences of initial high temperature curing on long-term compressive strength of precast concrete members [J]. Jiangsu Building Materials, 2014, 5:4-9.(in Chinese)
[21] Shui Z H, Cao B B. Studies about thermal expansion of cement and concrete materials[C]//Proceedings of the 9th National Conference About Cement and Concrete Chemistry and Application Technology. Guangzhou, China, 2005:429-434.(in Chinese)
[22] Detwiler R J, Fapohunda C A, Natale J. Use of supplementary cementing materials to increase the resistance to chloride ion penetration of concretes cured at elevated temperatures [J]. ACI Materials Journal, 1994, 91(1):63-66.
[23] Jones M R, Dhir R K, Magee B J. Concrete containing ternary blended binders: Resistance to chloride ingress and carbonation [J]. Cement and Concrete Research, 1997, 27(6):825-831. DOI:10.1016/s0008-8846(97)00075-6.
[24] Bijen J. Benefits of slag and fly ash [J]. Construction and Building Materials, 1996, 10(5):309-314. DOI:10.1016/0950-0618(95)00014-3.
[25] Erdem T K, Turanli L, Erdogan T Y. Setting time: An important criterion to determine the length of the delay period before steam curing of concrete [J]. Cement and Concrete Research, 2003, 33(5):741-745. DOI:10.1016/s0008-8846(02)01058-x.
[26] Escalante-García J I, Sharp J H. The microstructure and mechanical properties of blended cements hydrated at various temperatures[J]. Cement and Concrete Research, 2001, 31(5):695-702. DOI:10.1016/s0008-8846(01)00471-9.

Memo

Memo:

Biography: Li Guo(1973—), male, doctor, associate professor, guoli@cumt.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51178455), the Transformation Program of Science and Technology Achievements of Jiangsu Province(No.BA2015133).
Citation: Li Guo, Dong Lei, Wang Dan, et al. Negative effect improvement of accelerated curing on chloride penetration resistance of ordinary concrete[J].Journal of Southeast University(English Edition), 2017, 33(1):79-85.DOI:10.3969/j.issn.1003-7985.2017.01.013.

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