Effect of Improper Curing on the Properties of Normal Strength Concrete
Abstract
In real applications, 28 days are regarded as proper curing time for concrete. There is a self-evident need to minimize the duration of curing days. For this purpose, this research investigates 1 to 7 days of curing and compares it with concrete cured for 28 days. Three grades of normal concrete strength grade 30, grade 35 and grade 40 were made. After curing, two exposure conditions were applied to the concrete, inside laboratory-controlled environment and outside environment. Results indicate that slump increases with cement content in DOE method at constant water content. The concrete density in all grades reduces when the concrete is subject to inside exposure in comparison with outside exposure. Water loss from concrete reduces with increase in curing days in all concrete grades. Compression strength of all concrete grades increases with increase in curing days. For the uniformity of concrete, ultrasonic pulse velocity indicated that with an increase in curing days, concrete becomes denser and a bit void. Results showed that an increase in curing days also improves the surface quality of concrete. The significance point noticed is that there was not much difference in the concrete properties between 7 days of curing and 28 days of curing in all grades.
Keywords:
curing, water loss, strength, concrete, gradesDownloads
References
A. A. Raheem, A. A. Soyingbe, A. J. Emenike, “Effect of curing methods on density and compressive strength of concrete”, International Journal of Applied Science and Technology, Vol. 3, No. 4, pp. 55-64, 2013
R. S. Unnithan, S. Anil, “Review on Self Curing Concrete”, International Journal of Engineering and Technology, Vol. 4, No. 5, pp. 1022-1024, 2017
G. Espinoza-Hijazin, A. Paul, M. Lopez, “Concrete containing natural pozzolans: new challenges for internal curing”, Journal of Materials in Civil Engineering, Vol. 24, No. 8, pp. 981-988, 2011 DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0000421
G. Espinoza-Hijazin, M. Lopez, “Extending internal curing to concrete mixtures with W/C higher than 0.42”, Construction and Building Materials, Vol. 25, No. 3, pp. 1236-1242, 2011 DOI: https://doi.org/10.1016/j.conbuildmat.2010.09.031
M. S. Mamlouk, J. P. Zaniewski, Materials for Civil and Construction Engineers, Prentice Hall, Upper Saddle River, NJ, USA, 2006
S. W. Peyton, C. L. Sanders, E. E. John, W. M. Hale, “Bridge deck cracking: a field study on concrete placement, curing, and performance”, Construction and Building Materials, Vol. 34, pp. 70-76, 2012 DOI: https://doi.org/10.1016/j.conbuildmat.2012.02.065
J. Zhang, J. Wang, Y. Han, “Simulation of moisture field of concrete with pre-soaked lightweight aggregate addition”, Construction and Building Materials, Vol. 96. pp. 599-614, 2015 DOI: https://doi.org/10.1016/j.conbuildmat.2015.08.058
A. A. Bashandy, N. N. Meleka, M. M. Hamad, “Comparative Study on the Using of PEG and PAM as Curing Agents for Self-Curing Concrete”, Challenge Journal of Concrete Research Letters, Vol. 8, No. 1, pp. 1-10, 2017 DOI: https://doi.org/10.20528/cjcrl.2017.01.001
S. Zhutovsky, K. Kovler, “Influence of water to cement ratio on the efficiency of internal curing of high-performance concrete”, Construction and Building Materials, Vol. 144, pp. 311-316, 2017 DOI: https://doi.org/10.1016/j.conbuildmat.2017.03.203
D. Mohamad, S. Beddu, S. N. Sadon, N. L. M. Kamal, Z. Itam, K. Mohamad, W. M. Sapua, “Self-curing Concrete using Baby Diapers Polymer”, Indian Journal of Science and Technology, Vol. 10 No. 4, 2017 DOI: https://doi.org/10.17485/ijst/2017/v10i4/110895
O. Idowu, L. Black, “Effect of Improper Curing on Concrete Performance”, 34th Cement and Concrete Science Conference, University of Sheffield, UK, September 14-17, 2014
K. N. Rahal, “Effects of improper moist curing on flexural strength of slabs cast under hot weather conditions”, Construction and Building Materials, Vol. 110, pp. 337-345, 2016 DOI: https://doi.org/10.1016/j.conbuildmat.2016.02.040
K. B. Subramanian, A. Siva, S. Swaminathan, A. M. G. Ajin, “Development of High Strength Self Curing Concrete Using Super Absorbing Polymer”, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering, Vol. 9, No. 12, pp. 1536-1541, 2015
M. S. R. Chand, P. S. N. R. Giri, G. R. Kumar, P. R. Kumar, “ Paraffin wax as an internal curing agent in ordinary concrete”, Magazine of Concrete Research, Vol. 67, No. 2, pp. 82-88, 2015 DOI: https://doi.org/10.1680/macr.14.00192
M. I. Mousa, M. G. Mahdy, A. H. Abdel-Reheem, A. Z. Yehia, “Mechanical properties of self-curing concrete (SCUC)”, HBRC Journal, Vol. 11, No. 3, pp. 311-320, 2014 DOI: https://doi.org/10.1016/j.hbrcj.2014.06.004
J. Justs, M. Wyrzykowski, D. Bajare, P. Lura, “Internal curing by superabsorbent polymers in ultra-high performance concrete”, Cement and Concrete Research, Vol. 76, pp. 82-90, 2015 DOI: https://doi.org/10.1016/j.cemconres.2015.05.005
D. Cusson, Z. Lounis, L. Daigle, “Benefits of internal curing on service life and life-cycle cost of high-performance concrete bridge decks–A case study”, Cement and Concrete Composites, Vol. 32, No. 5, pp. 339-350, 2010 DOI: https://doi.org/10.1016/j.cemconcomp.2010.02.007
D. Shen, T. Wang, Y. Chen, M. Wang, G. Jiang, “Effect of internal curing with super absorbent polymers on the relative humidity of early-age concrete”, Construction and Building Materials, Vol. 99, pp. 246-253, 2015 DOI: https://doi.org/10.1016/j.conbuildmat.2015.08.042
S. Ghourchian, M. Wyrzykowski, P. Lura, M. Shekarchi, B. Ahmadi, “An investigation on the use of zeolite aggregates for internal curing of concrete”, Construction and Building Materials, Vol. 40, pp. 135-144, 2013 DOI: https://doi.org/10.1016/j.conbuildmat.2012.10.009
B. E. Byard, A. K. Schindler, R. W. Barnes “Early-age cracking tendency and ultimate degree of hydration of internally cured concrete”, Journal of Materials in Civil Engineering, Vol. 24, No. 8, pp. 1025-1033, 2011 DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0000469
M. Lopez, L. F. Kahn, K. E. Kurtis, “High-strength self-curing low-shrinkage concrete for pavement applications”, International Journal of Pavement Engineering, Vol. 11, No. 5, pp. 333-342, 2010 DOI: https://doi.org/10.1080/10298436.2010.488731
M. I. Mousa, M. G. Mahdy, A. H. Abdel-Reheem, A. Z. Yehia, “Self-curing concrete types; water retention and durability”, Alexandria Engineering Journal, Vol. 54, No. 3, pp. 565-575, 2015 DOI: https://doi.org/10.1016/j.aej.2015.03.027
A. S. El-Dieb, “Self-curing concrete: Water retention, hydration and moisture transport.”, Construction and Building Materials, Vol. 21, No. 6, pp. 1282-1287, 2007 DOI: https://doi.org/10.1016/j.conbuildmat.2006.02.007
K. Marar, “Effect of cement content and water/cement ratio on fresh concrete properties without admixtures”, International Journal of Physical Sciences, Vol. 6, No. 24, pp. 5752-5765, 2011
S. Iffat, “Relation Between Density and Compressive Strength of Hardened Concrete”, Concrete Research Letters, Vol. 6, No. 4, pp. 182-189, 2015
M. I. Mousa, M. G. Mahdy, A. H. Abdel-Reheem, A. Z. Yehia, “Physical properties of self-curing concrete”, HBRC Journal, Vol. 11, No. 2, pp. 167-175, 2014 DOI: https://doi.org/10.1016/j.hbrcj.2014.05.001
T. R. Naik, “Concrete durability as influenced by density and/or porosity”, Cement and Concrete Institute of Mexico Symposium “World of Concrete-Mexico”, Guadalajara, Mexico, June 4-7, 1997
H. Mohammadhosseini, N. H. A. S. Lim, A. R. M. Sam, M. Samadi, “Effects of elevated temperatures on residual properties of concrete reinforced with waste polypropylene carpet fibres”, Arabian Journal for Science and Engineering, Vol. 43, No. 4, pp. 1673-1686, 2018 DOI: https://doi.org/10.1007/s13369-017-2681-1
G. Karaiskos, A. Deraemaeker, D. G. Aggelis, D. V. Hemelrijck, “Monitoring of concrete structures using the ultrasonic pulse velocity method”, Smart Materials and Structures, Vol. 24, No. 11, p. 113001, 2015 DOI: https://doi.org/10.1088/0964-1726/24/11/113001
K. Haddad, O. Haddad, S. Aggoun, S. Kaci, “Correlation between the porosity and ultrasonic pulse velocity of recycled aggregate concrete at different saturation levels”, Canadian Journal of Civil Engineering Vol. 44, No. 11, pp. 911-917, 2017 DOI: https://doi.org/10.1139/cjce-2016-0449
W. Zhong, W. Yao, “Influence of damage degree on self-healing of concrete”, Construction and building materials, Vol. 22. No. 6, pp. 1137-1142, 2008 DOI: https://doi.org/10.1016/j.conbuildmat.2007.02.006
C Sreenivasulu, J. G. Jawahar, C. Sashidhar, “Predicting compressive strength of geopolymer concrete using NDT techniques”, Asian Journal of Civil Engineering, Vol. 19, No. 4, pp. 1-13, 2018 DOI: https://doi.org/10.1007/s42107-018-0036-1
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