Abstract
Lime activated GGBS has been investigated to improve the Acid Sulphate Soils (ASS) found along the coastline of Australia. Biochar is an environmentally friendly carbon negative material which has been incorporated for soil stabilisation works. ASS was treated with different proportions of biochar, lime and GGBS. Treated ASS was cured for up to 6 months in a humid chamber and tested for the unconfined compressive strength and mineralogical developments. Results of this study show that biochar can be sequestered in the stabilisation of ASS to achieve a desired strength and reduction of carbon intensive cementing materials (lime, cement). It has been found that the UCS of treated ASS increases up to 3 months curing for the additives proportions investigated.
| Original language | English |
|---|---|
| Title of host publication | ANZ 2015 |
| Subtitle of host publication | 12th Australia New Zealand conference on geomechanics: proceedings |
| Editors | Lucy McChesney |
| Place of Publication | London UK |
| Publisher | International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) |
| Pages | 73 - 79 |
| Number of pages | 7 |
| Publication status | Published - 2015 |
| Event | Australia New Zealand Geomechanics Conference 2015 - Wellington, New Zealand Duration: 22 Feb 2015 → 25 Feb 2015 Conference number: 12th |
Conference
| Conference | Australia New Zealand Geomechanics Conference 2015 |
|---|---|
| Abbreviated title | ANZ 2015 |
| Country/Territory | New Zealand |
| City | Wellington |
| Period | 22/02/15 → 25/02/15 |
| Other | 12th Australia New Zealand Conference on Geomechanics (ANZ 2015) Start date: 2015-02-22 End date: 2015-02-25 Venue: City: Wellington State: Country: New Zealand Organizer: New Zealand Geotechnical Society and the Australian Geomechanics Society Language: Website: http://www.anz2015.com/ |
Keywords
- Acid sulphate soil
- Soil improvement
- Lime-GGBS-biochar
- Unconfined compressive strength
- Mineralogy