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Materials 2016, 9(6), 416; doi:10.3390/ma9060416

Reuse of Boron Waste as an Additive in Road Base Material

1
Jilin Provincical High Class Highway Construction Burean, Changchun 130033, China
2
College of Transportation, Jilin University, Changchun 130025, China
3
School of Civil Engineering, Hebei University of Engineering, Handan 056038, China
4
Department of Student’s Affairs, Hebei University of Engineering, Handan 056038, China
5
School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Received: 18 March 2016 / Revised: 14 May 2016 / Accepted: 19 May 2016 / Published: 26 May 2016
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Abstract

The amount of boron waste increases year by year. There is an urgent demand to manage it in order to reduce the environmental impact. In this paper, boron waste was reused as an additive in road base material. Lime and cement were employed to stabilize the waste mixture. Mechanical performances of stabilized mixture were evaluated by experimental methods. A compaction test, an unconfined compressive test, an indirect tensile test, a modulus test, a drying shrinkage test, and a frost resistance test were carried out. Results indicated that mechanical strengths of lime-stabilized boron waste mixture (LSB) satisfy the requirements of road base when lime content is greater than 8%. LSB can only be applied in non-frozen regions as a result of its poor frost resistance. The lime–cement-stabilized mixture can be used in frozen regions when lime and cement contents are 8% and 5%, respectively. Aggregate reduces the drying shrinkage coefficient effectively. Thus, aggregate is suggested for mixture stabilization properly. This work provides a proposal for the management of boron waste. View Full-Text
Keywords: boron waste; stabilized material; road base; mechanical properties; drying shrinkage boron waste; stabilized material; road base; mechanical properties; drying shrinkage
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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. (CC BY 4.0).

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Zhang, Y.; Guo, Q.; Li, L.; Jiang, P.; Jiao, Y.; Cheng, Y. Reuse of Boron Waste as an Additive in Road Base Material. Materials 2016, 9, 416.

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