- Title
- Use of hand-spray plaster as a coating for soil bulk volume measurement
- Creator
- Liu, Xianfeng; Buzzi, Olivier
- Relation
- Geotechnical Testing Journal Vol. 37, Issue 3
- Publisher Link
- http://dx.doi.org/10.1520/GTJ20130091
- Publisher
- ASTM International
- Resource Type
- journal article
- Date
- 2014
- Description
- This paper presents a new coating material [hand-spray plaster (HSP)] used to measure the bulk volume of soil specimens having irregular shapes. The new method has been validated against two benchmark methods, namely, the wax and plastic bag methods, by conducting swelling and shrinkage tests on intact Maryland clay. The results show that the new method yields similar values of volume but with much reduced data scattering. The HSP method is also far easier to use than the other two methods. Finally, the stiffness of the coating has been measured and its restraining effect has been found to be negligible. Some of the benefits of using the HSP method are: (1) limited fluid retention by the specimen post-immersion for volume measurement, (2) reduced water-intake rate with elimination of cracking upon swelling caused by high-suction gradients, (3) absence of the restraining effect on specimens upon swelling, and (4) accurate determination of the swelling and shrinkage curves with only one specimen per curve.
- Subject
- expansive soil; bulk volume; shrinkage; swelling; coating; cracking
- Identifier
- http://hdl.handle.net/1959.13/1049736
- Identifier
- uon:15072
- Identifier
- ISSN:0149-6115
- Rights
- © 2014 The Authors. Journal of Medical Radiation Sciences published by Wiley Publishing Asia Pty Ltd on behalf of Australian Institute of Radiography and New Zealand Institute of Medical Radiation Technology. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License http://creativecommons.org/licenses/by-nc/3.0/, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
- Language
- eng
- Full Text
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