Browse > Article
http://dx.doi.org/10.5345/JKIBC.2021.21.6.529

Compressive Strength and Water Contact Angle Properties of Cement Mortar by Type of Water Repellent  

Kang, Suk-Pyo (Department of Construction Engineering, Woosuk University)
Kang, Hye-Ju (Construction Test and Certification Department, Korea Institute of Civil Engineering and Building Technology)
Kim, Sang-Jin (Department of Construction Engineering, Woosuk University)
Suh, Jeong-In (Department of Construction Engineering, Woosuk University)
Publication Information
Journal of the Korea Institute of Building Construction / v.21, no.6, 2021 , pp. 529-538 More about this Journal
Abstract
In this study, the compressive strength and water contact angle were measured before and after surface abrasion of mortar specimens prepared by mixing two types of water repellents and two types of sands. In addition, the hydration products and chemical bonding of cement mortar by repellent were examined using X-ray diffraction(XRD), thermogravimetry-differential thermal analysis(TG-DTA), and Fourier-transform infrared spectroscopy(FT-IR) to evaluate the performance of these cement mortar mixtures as repair materials. We found that the compressive strength of the cement mortar with water repellent added was decreased compared to that of the plain cement mortar, and that of the oligomeric system was higher than that of the monomeric system. We further found that the contact angle of mortar with water repellent added was increased compared to that of the plain cement mortar, and that of the oligomeric system was increased compared to that of the monomer.
Keywords
water repellents; strength characteristics; contact angle; fine aggregate; mortar;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Oh HS, Kim YH, Jang NS. Strength and durability characteristics of mpc mortar used for repairing concrete pavements. Journal of the Korean Society of Hazard Mitigation. 2019 Jun;(3):185-93. https://doi.org/10.9798/KOSHAM.2019.19.3.185   DOI
2 Kim WS, Yoon CB, Cho IS, Lee HS. Material properties evaluation of cement mortar mixed with organic/inorganic combined water-repellent. Journal of the Korea Institute for Structural Maintenance and Inspection. 2020 Dec;24(6):50-8. https://doi.org/10.11112/jksmi.2020.24.6.50   DOI
3 Lee BD, Choi YS, Kim YG, Choi JS, Kim IS. A study on the durability improvement of highway-subsidiary concrete structure exposed to deicing salt and freeze-thaw. Journal of the Korea Institute for Structural Maintenance and Inspection. 2016 Jul;20(4):128-35. https://doi.org/10.11112/jksmi.2016.20.4.128   DOI
4 Cho YI, Hong KN, Kim MS, Park JK. Effect of curing temperature on mechanical properties of polymer mortar for urgent repairing. Journal of the Korean Society of Safety. 2016 Oct;31(5):109-16. http://doi.org/10.14346/JKOSOS.2016.31.5.109   DOI
5 Song J, Li Y, Xu W, Liu H, Lu Y. Inexpensive and non-fluorinated superhydrophobic concrete coating for anti-icing and anti-corrosion. Journal of Colloid and Interface Science. 2019 Apr;541:86-92. https://doi.org/10.1016/j.jcis.2019.01.014   DOI
6 Flores-Vivian I, Hejazi V, Kozhukhova MI, Nosonovsky M, Sobolev K. Self-assembling particle-siloxane coatings for superhydrophobic concrete. Applied Materials & Interfaces. 2013 May;5(24):13284-94. https://doi.org/10.1021/am404272v   DOI
7 Zhu J, Liao K. A facile and low-cost method for preparing robust superhydrophobic cement block. Materials Chemistry and Physics. 2020 Aug;250:123064. https://doi.org/10.1016/j.matchemphys.2020.123064   DOI
8 Tsivilis S, Kakali G, Chaniotakis E, Souvaridou A. A study on the hydration of portland limestone cement by means of TG. Journal of Thermal Analysis and Calorimetry. 1998 Jun;52:863-70. https://doi.org/10.1023/A:1010139312958   DOI
9 Zhu C, Lv J, Chen L, Lin W, Zhang J, Yang J, Feng J. Dark, heat-reflective, anti-ice rain and superhydrophobic cement concrete surfaces. Construction and Building Mateials. 2019 Sep;220:21-8. https://doi.org/10.1016/j.conbuildmat.2019.05.188   DOI
10 Kang SP, Hong SU, Kang HJ, Yang SH. Water repellent characteristics of cement paste added silane/siloxane-based emulsion water repellent. The Korea Institute of Building Construction. 2021 Feb;21(1):31-9. https://doi.org/10.5345/JKIBC.2021.21.1.031   DOI
11 Wang W, Wang S, Yao D, Wang X, Yu X, Zhang Y. Fabrication of all-dimensional superhydrophobic mortar with enhanced waterproof ability and freeze-thaw resistance. Construction and Building Materials. 2020 Mar;238:117626. https://doi.org/10.1016/j.conbuildmat.2019.117626   DOI
12 Pan T, Zhiguang G. Bioinspired silica-based superhydrophobic materials. Applied Surface Science. 2017 Dec;426:1-18. https://doi.org/10.1016/j.apsusc.2017.07.134   DOI
13 Falchi L, Zendri E, Muller U, Fontana P. The influence of water-repellent admixtures on the behaviour and the effectiveness of Portland limestone cement mortars. Cement and Concrete Composites. 2015 May;59:107-18. https://doi.org/10.1016/j.cemconcomp.2015.02.004   DOI
14 Venkatesh C, Nerella R, Chand MSR. Role of red mud as a cementing material in concrete: A comprehensive study on durability behavior. Innovative Infrastruct. 2021 Oct;6(1):1-14. https://doi.org/10.1007/s41062-020-00371-2   DOI