Research on Road Performance of Chemical Modified Nanning Expansive Soil

DOI

10.2991/iccte-16.2016.47How to use a DOI?

Keywords

expansive soil, chemical improvement; lime; cement; fly ash

Abstract

To study on the chemical effects on Nanning expansive soils the lime, cement and fly ash were utilized as modifier to treat three different kinds of expansive soil. The fundamental engineering properties of expansive soil were analyzed to evaluate the improved effects and adaptability. The results indicate that it is significant to increase the strength of expansive soil and reduce the swelling-shrinkage properties with the addition of lime; with 5-7% addition of lime, the CBR values and total rate of swelling-shrinkage can be great and less than 3% and 0.7%, respectively. All can meet the specification requirement. The addition of cement increase the strength of expansive soil considerably, but reduce the total rate of swelling-shrinkage poorly. It is not significant to increase the CBR values with the addition of fly ash.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xian-Yuan Tang
AU  - He-Ping Yang
AU  - Ying-Chun Li
PY  - 2016/01
DA  - 2016/01
TI  - Research on Road Performance of Chemical Modified Nanning Expansive Soil
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 273
EP  - 279
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.47
DO  - 10.2991/iccte-16.2016.47
ID  - Tang2016/01
ER  -