Abstract
The durability of silane-modified mortar, a cementitious composite, in acid rain environment was investigated given its extensive usage as a structural material. The results indicated that the addition of silane decreased the compressive strength of the cementitious composite. Wetting angle was increased by incorporating silane into the matrix. Decrease in both water absorption ability and coefficient of capillary suction confirmed hydrophobicity as induced by silane addition. Results of mechanical testing, scanning electron microscopy and X-ray diffraction showed that the sulfuric acid resistance of mortar was enhanced by silane. Based on these results, it is revealed that silane addition inhibits the diffusion of water, and consequently, sulfate ion diffusion rate decreases, thereby resulting in reduction in the rate of corrosion of cementitious composites by sulfuric acid.
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References
M E Weaver. Acid Rain and Air Pollution vs the Buildings and Outdoor Sculptures of Montreal [J]. APT Bulletin, 1991, 23(4): 13–19
J P Lodge. Materials Damaged by Environmental Pollutants: Data Requirements [J]. The American Statistician, 1985, 39(4): 412–415
S D Cramera, B S Covino Jr, S J Bullard R Holcombe, et al. Corrosion Prevention and Remediation Strategies for Reinforced Concrete Coastal Bridges [J]. Cement and Concrete Composites, 2002, 24(1): 101–117
X Y Zhang, B G AN, EN H HAN, et al. Runoff and Corrosion of Material [J]. Corrosion Science and Protection Technology, 2002 (3):157–160 (in Chinese)
V Pavlík, S Uncík. The Rate of Corrosion of Hardened Cement Pastes and Mortars with Additive of Silica Fume in Acids [J]. Cement and Concrete Research, 1997, 27(11): 1 731–1 745
W Kaempfer, M Berndt. Polymer Modified Mortar with High Resistance to Acid and to Corrosion by Biogenous Sulfuric Acid [C]. Proceedings of the IXth ICPIC Congress, Bologna (Italy), 1998
N De Belie, M Debruyckere, D Van Nieuwenburg, et al. Attack of Concrete Floors in Pig Houses by Feed Acids Influence of Fly Ash Addition and Cement-Bound Surface Layers[J]. Journal of Agricultural Engineering Research, 1997, 68(2):101–108
T A Durning, M C Hicks. Using Microsilica to Increase Concrete’s Resistance to Aggressive Chemicals [J]. Concrete International, 1991, 14(3): 42–48
T Kazuyuk, K Mitsunor. Effects of Fly Ash and Silica Fume on the Resistance of Mortar to Sulphuric Acid and Sulphate Attack [J]. Cement and Concrete Research, 1994, 24(2): 361–370
N De Belie, R Verschoore, D Van Nieuwenburg. Resistance of Concrete with Limestone Sand or Polymer Additions to Feed Acids [J]. Transaction of the ASAE, 1998, 41(1): 227–233
E Gruyaert, P Van den Heede, M Maes, et al. Investigation of the Influence of Blast-Furnace Slag on the Resistance of Concrete [J]. Cement and Concrete Research, 2012, 42(1): 173–185
B P Hughes, J E Guest. Limestone and Siliceous Aggregate Concrete Subjected to Sulphuric Acid Attack [J]. Magazine of Concrete Research, 1978, 30(102): 11–18
W H Harrison. Durability of Concrete in Acidic Soils and Waters [J]. Concrete, 1987, 21(2):18–23
A A Almusallam, F M Khan, S U Dulaijan, et al. Effectiveness of Surface Coatings in Improving Concrete Durability[J]. Cement & Concrete Composites, 2003, 25(4–5): 473–481
S U Dulaijan, M Maslehuddin, M M Al-Zahrani, et al. Performance Evaluation of Resin Based Surface Coatings[C]. Proceedings of 6th International Conference in Deterioration and Repair of Reinforced Concrete. Bahrain, 2000
M Ibrahim, A Al-Gahtani, M Maslehuddin. Use of Surface Treatment Materials to Improve Concrete Durability[J]. Journal of Materials in Civil Engineering, 1999, 11(1): 36–40
M H F Medeirosa, P Heleneb. Surface Treatment of Reinforced Concrete in Marine Environment: Influence on Chloride Diffusion Coefficient and Capillary Water Absorption[J]. Construction and Building Materials, 2009, 23(3): 1 476–1 484
R N Swamy, S Tanikawa. Surface Coatings to Preserve Concrete Durability [C]. Protection of Concrete, London, 1990
A Izaguirre, J Lanas, J IAlvarez. Effect of Water-Repellent Admixtures on the Behavior of Aerial Lime-based Mortars[J]. Cement and Concrete Research, 2009, 39(11): 1 095–1 104
H Zhan, F H Wittmann, T J Zhao. Relation Between the Silicon Resin Profiles in Water Repellent Treated Concrete and the Effectiveness as a Chloride Barrier[J]. Restoration of Buildings and Monuments, 2005, 11(1): 35–46
P Zhang, F H Wittmann, B Villmann, et al. Moisture Diffusion in and Capillary Suction of Integral Water Repellent Cement Based Materials [C]. 5th International Conference on Water Repellent Treatment of Building Materials, 2008
R Jiang, P Zhang, T J Zhao, et al. Water Resistance and Anti-chloride Penetration of Integral Water Repellent Concrete with Addition of Metal Soaps[J]. New Building Materials, 2010, 37(9):61–64 (in Chinese)
Zh M Ma, J Zh Chen, T J Zhao, et al. Experimental Study on Durability of Waterproofing Concrete Adding Silicone Emulsion[J]. China Building Waterproofing, 2012, 255(20): 1–4 (in Chinese)
S Kelham. A Water Absorption Test for Concrete [J]. Magazine of Concrete Research, 1988, 40(143): 106–110
Y F Xiao, W B Li. Physics and Chemistry[M]. Tian Jin: Tian Jin University Press Publishing, 2004 (in Chinese)
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Funded by National Key Technology Research and Development Program of China (No.2013BAJ10B05)
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He, K., Yang, H., Lu, Z. et al. Effect of matrix modification on durability of cementitious composites in an acid rain environment. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 29, 498–503 (2014). https://doi.org/10.1007/s11595-014-0947-y
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DOI: https://doi.org/10.1007/s11595-014-0947-y