Proceedings of the 2nd International Symposium on Transportation Studies in Developing Countries (ISTSDC 2019)

The Effect of Curing Time on the Engineering Properties of Sawdust and Lime Stabilized Expansive Soils

Authors
John Bosco Niyomukiza, Sri Prabandiyani Retno Wardani, Bagus Hario Setiadji
Corresponding Author
John Bosco Niyomukiza
Available Online 25 February 2020.
DOI
10.2991/aer.k.200220.033How to use a DOI?
Keywords
lime, sawdust, curing time, UCS, CBR
Abstract

Subgrade strength is the main factor in determining the required thickness of any pavement. Therefore, the properties of a pavement subgrade materials must be determined, as they can predict the service life of a pavement. This paper examines the deviation of strength attained by sawdust and lime stabilized expansive soils for subgrade during different curing periods. The methodology used was conducting laboratory tests such as physical properties and mechanical property tests for both treated and untreated soil samples. In the first set-up, the soil was substituted with sawdust in the percentages of 0, 3, 5, and 7% of the dry weight of the soil, and after conducting unconfined compressive strength test, the optimum sawdust percentage obtained was 3%. The 3% sawdust was then mixed with 3% lime and 94% soil for long term tests. The sawdust-lime stabilized samples were cured for 0, 7, 14, and 28 days, and tested for unconfined compressive test and California Bearing Ratio. Based on the analysis of the results, it was concluded that a combination of 3% sawdust and 3% lime significantly improved the California Bearing Ratio and unconfined shear strength, specifically at later curing periods.

Copyright
© 2020, 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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Volume Title
Proceedings of the 2nd International Symposium on Transportation Studies in Developing Countries (ISTSDC 2019)
Series
Advances in Engineering Research
Publication Date
25 February 2020
ISBN
10.2991/aer.k.200220.033
ISSN
2352-5401
DOI
10.2991/aer.k.200220.033How to use a DOI?
Copyright
© 2020, 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/).

Cite this article

TY  - CONF
AU  - John Bosco Niyomukiza
AU  - Sri Prabandiyani Retno Wardani
AU  - Bagus Hario Setiadji
PY  - 2020
DA  - 2020/02/25
TI  - The Effect of Curing Time on the Engineering Properties of Sawdust and Lime Stabilized Expansive Soils
BT  - Proceedings of the 2nd International Symposium on Transportation Studies in Developing Countries (ISTSDC 2019)
PB  - Atlantis Press
SP  - 157
EP  - 161
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.200220.033
DO  - 10.2991/aer.k.200220.033
ID  - Niyomukiza2020
ER  -