Experimental Study on Cement Mortar with Bentonite

Abstract:

For an infrastructure construction located in marine environments, maintaining good durability for the structures always imposes serious challenges, especially for the structure made of reinforced concrete. Concrete exposed to marine environment may deteriorate as a result of combined effects of both physical and chemical actions from marine environment. Corrosion of the reinforced steel bars that are embedded in the concrete is the most serious problem. Therefore, a method to protect the reinforced concrete in the marine environment from damages due to material deterioration and corrosion is proposed in this study. The method is through the application of bentonite material by utilizing its very finely divided form so that the larger capillary pores in concrete can be filled up. In this way, the impermeability of concrete material can be enhanced and then improve the corrosion resistant ability of the material.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 1741-1744
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.1741
• Online since: March 2013
• Authors: Hsien Hua Lee, C. W. Wang
• Keywords: Bentonite Mortar, Cement Mortar, Compression Strength, Experimental Study

References

[1] H. H. Lee, Corrosion of SS41 iron-carbon based steel in Kaohsiung Harbor, 3rd Conference on Material Corrosion and Protection, pp.500-508, Quingdau, China (2002).

[2] H. H. Lee and P. -Y. Chang, The damage inspection and safety assessment on steel-sheet pile wharf structural system, Proceedings of 2006 Int. Conf. on Fracture and Damage Mechanics, Harbin, China (2006).

[3] H. H. Lee, Y. -Y. Chen and S.W. Shyue, Investigation on the destruction of caisson type wharfs during Chi-Chi Earthquake in Taiwan, APACE Conference Proceedings, Dalian, China, pp.671-680 (2001).

[4] J. G. Cabrera and P. A. Claisse, Measurement of chloride penetration into silica fume concrete, Cement Concrete Composites, Vol. 12, No. 3, pp.157-161 (1990).

DOI: 10.1016/0958-9465(90)90016-q

[5] P. S. Mangat and S.C. Tu, Chloride ingress in microsilica concrete, Cement Concrete Composites, Vol. 15, No. 4, pp.215-221 (1993).

DOI: 10.1016/0958-9465(93)90024-4

[6] H. G. Midgley and M. Illston, Penetration of chlorides into hardened cement pastes, Cement and Concrete Research, Vol. 14, No. 4, pp.546-558 (1984).

DOI: 10.1016/0008-8846(84)90132-7

[7] P. K. Mehta, Pozzolanic and cementitiors byproducts as mineral admixtures for concrete – A critical review, ACI sp-79, pp.1-46 (1983).

[8] P. -Y. Chung, H. H. Lee and M. -S. Yu, Corrosion Related Property Improvement for Cement Mortar Applied to Marine Environment, J. of Marine Science and Technology, Vol. 20, No. 2, pp.132-141 (2012).

DOI: 10.51400/2709-6998.1831