- Title
- Shrinkage properties of fibre-enzyme reinforced clay
- Creator
- Zhou, Limin; Xie, Yuekai; Costa, Susanga; Kandra, Harpreet
- Date
- 2017
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/163812
- Identifier
- vital:12985
- Abstract
- Shrinkage of clay soils during drying can impose significant unfavourable effects on engineering applications. Researchers have attempted to amend drying shrinkage by mixing soil with various additives such as nanomaterials, fibre, geo-polymer etc. This paper discusses the shrinkage characteristics of an expansive clay mixed with nylon fibre and an organic enzyme. As clay is mostly used in compacted form in civil engineering applications, the study was focused on the shrinkage behaviour of compacted clay. Different percentages of nylon fibre, ranging from 0 to 1.2 percent by weight, were mixed with soil. The amount of enzyme added to each mixture was kept fixed at 0.35 g of enzyme per kg of dry soil. Compacted soil blocks were made using standard compaction procedures and cut in to rectangular specimens of size 80 x 60 x 40 mm.Compaction test results indicated that addition of fibre and enzyme can slightly improve the dry density of soil. Rectangular block specimens were allowed to dry without restraints under room temperature. Change in moisture content, linear and volumetric shrinkage and change in void ratio were investigated. Image analysis techniques were used to measure the changes in dimensions.
- Relation
- International Conference On Sustainable Civil Engineering Practices
- Rights
- This metadata is freely available under a CCO license
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