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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 510958, 8 pages
Research Article

Preparation of Flame Retardant Modified with Titanate for Asphalt Binder

1School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
2Gansu Lufu Engineering & Technology Co., Ltd, Lanzhou, Gansu 730070, China
3Gansu Road and Bridge Construction Group Co. Ltd, Lanzhou, Gansu 730030, China

Received 18 June 2014; Revised 11 August 2014; Accepted 21 August 2014; Published 15 October 2014

Academic Editor: Luigi Nicolais

Copyright © 2014 Bo Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Improving the compatibility between flame retardant and asphalt is a difficult task due to the complex nature of the materials. This study explores a low dosage compound flame retardant and seeks to improve the compatibility between flame retardants and asphalt. An orthogonal experiment was designed taking magnesium hydroxide, ammonium polyphosphate, and melamine as factors. The oil absorption and activation index were tested to determine the effect of titanate on the flame retardant additive. The pavement performance test was conducted to evaluate the effect of the flame retardant additive. Oxygen index test was conducted to confirm the effect of flame retardant on flame ability of asphalt binder. The results of this study showed that the new composite flame retardant is more effective in improving the compatibility between flame retardant and asphalt and reducing the limiting oxygen index of asphalt binder tested in this study.