NDLI: Assessing Stabilization Effectiveness of Combined Cement Kiln Dust and Quarry Fines on Pavement Subgrades Dominated by Black Cotton Soil

Content Provider	Springer Nature Link
Author	Amadi, Agapitus Ahamefule Lubem, Shagba
Copyright Year	2014
Abstract	In developing technically viable and economically sustainable methods of improving soil properties to suit the requirements of engineering structures, designers/engineers are to take into consideration the availability and cost effectiveness of materials required for such improvement scheme. In line with this, the present study evaluates stabilization effectiveness of combined quarry fines (QF) and cement kiln dust (CKD) on subgrades dominated by black cotton soil (BC soil). The experimental programme included Atterberg limits, compaction and California bearing ratio (CBR) tests on soil mixtures prepared with a representative BC soil at constant dosage of 10 % QF and 0, 4, 8, 12 and 16 % CKD. Prior to testing, soil mixtures for CBR test prepared at optimum moistures and compacted with British standard light compaction effort were soaked for 96 h after curing for 28 days. Test data show that the addition of QF and CKD together reduced the plasticity index that resulted in rapid textural changes and eventual improvement in constructability, led to an increase in the optimum moisture content and a decrease in the maximum dry unit weight. Furthermore, the coupled effects of QF and CKD resulted in substantial increase in CBR strength of the composite specimens. Overall, mixtures created using the proposed QF and CKD ratios rendered the soil physically and mechanically stable producing results that are compatible with desired values for engineering performance typically required by various user agencies for pavement subgrades. This improvement scheme is not only cost effective, but it is capable of lessening the demand on non renewable resources thereby reducing the footprint of road construction projects in the environment.
Starting Page	1231
Ending Page	1238
Page Count	8
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	32
Issue Number	5
e-ISSN	15731529
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-06-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Black cotton soil Cement kiln dust Quarry fines Subgrade stabilization Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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