Study on the Influence of Chloride Ion Content on Pavement Performance of Base Material with Fly-Ash-Flushed-By-Seawater

Abstract:

In order to study on the influence of chloride ion on pavement performance of base material with fly-ash-flushed-by-seawater and the feasibility of fly-ash-flushed-by-seawater material used to road construction, the analysis and evaluation on the influence of chloride salt content on pavement performance of material base course are obtained through the laboratory test on pavement performance of base course with adding different content of chloride salt. The study shows that the chloride salt content in fly-ash-flushed-by-seawater influences slightly on the early strength of base course and even plays a function of early strength agent; the chloride salt content in fly-ash-flushed-by-seawater has an inhibiting effect on the growth of strength when it is more than 1.3%; the dry shrinkage coefficient increases with the aggrandizement of chloride salt content and the anti-erosion performance of material is sensitive to the chloride salt content, but temperature shrinkage coefficient and anti-freeze performance are slightly influenced by it. Fly-ash-flushed-by-seawater used to base course construction is feasible because the pavement performance of fly-ash-flushed-by-seawater base material satisfies the request of Specifications for Design of Highway Asphalt Pavement JTG D50-2006.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 993-1000
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.993
• Online since: February 2011
• Authors: Long Sheng Bao, Xiao Fang Zhang, Ling Yu, Guang Shan Zhu
• Keywords: Base Course, Chloride Ion Content, Fly-Ash-Flushed-by-Seawater, Pavement Performance

References

[1] The Department of Transportation of The People's Republic of China JTG F40-2004, Technical Specifications for Construction of Highway Asphalt Pavement, Beijing: China Communication Press, (2003).

[2] S. Q. Lin, Asphalt Pavement for Semi Rigid Base of High Class Highway, Beijing: China Communication Press, (1998).

[3] The Department of Transportation of the People's Republic of China. JTGD50-2006 Technical Specifications for Design of Highway Asphalt Pavement, Beijing: China Communication Press, (2006).

[4] M. H. Sun and H. J. Xian, Study on Properties and Use of Fly Ash Flushed by Seawater, Coal Ash Comprehensive Utilization. 4, 30－32(2003).

[5] Y. Xu, The influence of sulphates on chloride binding and pore solution chemistry, Cement and concrete Research, 27, 12, 1841-1850(1997).

DOI: 10.1016/s0008-8846(97)00196-8

[6] M. D. A. Thomas and P. B. Bamforth. Modeling chloride diffusion in concrete effect of fly ash and slag, Cement and Concrete Research, 29, 487-495 (1999).

DOI: 10.1016/s0008-8846(98)00192-6

[7] B. Benoit, P. Pascale and P. Michel, Influence of key parameters on drying shrinkage of cementations materials, Cement and Concrete Research. 29, 10, 1655-1662(1999).

DOI: 10.1016/s0008-8846(99)00156-8

[8] V. M. Malhotra, Relationship Between Pozzolanic Activity and Chemical and Physical of Selected Canadian Fly Ashes. Materials Research Society Symposia Proceedings, 86, 91-97(1997).

[9] L. A. Hilmi, Microstructure Development of Stabilized Fly Ash as Pavement Base Material, Journal of Materials in Civil Engineering, 2, 157-163 (2000).

[10] X.D. WANG, JTG E51-2009 Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering. Beijing: China Communications Press, (2009).

[11] U.A. Birnin-Yauri, F.P. Glasser. Fredel's salt, CaAl(OH)6(Cl, OH). 2H2O: its solid solutions and their role in chloride binding. Cement and Concrete Research, 28, 1713-1723(1998).

DOI: 10.1016/s0008-8846(98)00162-8

[12] T. Yonezawa, The Mechanism of Fixing Cl-by Cement Hydrates Resulting in the Transformation of NaCl to NaOH. 8th International Conference on Alkali-Aggregate Reaction, 153-160(1989).

[13] A.K. Surgavanshi, Stability of Friedel's salt in Carbonated Concrete Structural Elements. Cement and Concrete Researeh, 26 (5): 729-741(1996).

DOI: 10.1016/s0008-8846(96)85010-1

[14] M.R. Jones D.E. Macphee J.A. Chudek. Studies using 27Al MAS NMR of AFm and Aft phases and the formation of Friedel's salt. Cement and Concrete Research, 33: 177-182 (2003).

DOI: 10.1016/s0008-8846(02)00901-8

[15] F.P. Glasser, A. Kindness. Stability and solubility relationships in AFm phases part I, chloride, sulfate and hydroxide[J]. Cement and Concrete Researeh, 29: 861-866(1999).

DOI: 10.1016/s0008-8846(99)00055-1

[16] R. C. Joshi and V. M. Malhotra. Relationship Between Pozzolanic Activity and Chemical and Physical of Selected Canadian Fly Ashes. Materials Research Society Symposia Proceedings, 86: 91-97(1997).

DOI: 10.1557/proc-65-167