Eighth International Conference on Case Histories in Geotechnical Engineering
Effect of Molarity of Geopolymers on Cement Kiln Dust and Unground Cement Clinker Admixed Black Cotton Soil
Publication: Geo-Congress 2019: Soil Improvement (GSP 309)
ABSTRACT
In the present study, the utilization of cement kiln dust (CKD) and unground cement clinker (UgCC) containing high amount of alkali is used in the production of geopolymerized black cotton (BC) soil is investigated. CKD and UgCC are cement industrial waste by products. Due to high alkali content of CKD and UgCC, its disposal as well as recycling poses problem. The objective of the present study is to utilize CKD and UgCC to be geopolymerized with BC soil using mixture of sodium silicate and sodium hydroxide at different molarity to induce cementation of BC soil to increase its strength and durability. The effect of molarity of sodium hydroxide on unconfined compressive strength (UCS) of the BC soil treated with CKD and UgCC is investigated. The effect of geopolymer on strength characteristic of BC soil have been studied for a curing period of 7 days, 14 days, and 28 days. The compressive strength of BC soil increases with geopolymer dosage and curing. The density of BC soil also increases with the increase in geopolymer. The test result indicates that geopolymer is very effective in stabilizing the soft soil.
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Information & Authors
Information
Published In
Geo-Congress 2019: Soil Improvement (GSP 309)
Pages: 196 - 205
Editors: Christopher L. Meehan, Ph.D., University of Delaware, Sanjeev Kumar, Ph.D., Southern Illinois University Carbondale, Miguel A. Pando, Ph.D., University of North Carolina Charlotte, and Joseph T. Coe, Ph.D., Temple University
ISBN (Online): 978-0-7844-8211-7
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Mar 21, 2019
ASCE Technical Topics:
- Agriculture
- Cement
- Concrete
- Crops
- Dust
- Engineering materials (by type)
- Environmental engineering
- Geomechanics
- Geotechnical engineering
- Irrigation engineering
- Materials engineering
- Pollutants
- Polymer
- Soil cement
- Soil compression
- Soil dynamics
- Soil mechanics
- Soil properties
- Soil strength
- Synthetic materials
- Water and water resources
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