NDLI: California Bearing Ratio and Brazilian Tensile Strength of Mine Overburden–Fly Ash–Lime Mixtures for Mine Haul Road Construction

Content Provider	Springer Nature Link
Author	Behera, Banita Mishra, Maj Kumar
Copyright Year	2011
Abstract	The production and utilization of coal is based on well-proven and widely used technologies. Fly ash, a coal combustion byproduct, has potential to produce a composite material with controlled and superior properties. The major challenges with the production of fly ash are in its huge land coverage, adverse impact on environment etc. It puts pressure on the available land particularly in a densely populated country like India. In India the ash utilization percentage has not been very encouraging in spite of many attempts. Stabilization of fly ash is one of the methods to transfer the waste material into a safe construction material. This investigation is a step in that direction. This paper presents the results of an investigation on compressive strength and bearing ratio characteristics of surface coal mine overburden material and fly ash mixes stabilized with lime for coal mine haul road construction. Tests were performed with different percentages of lime (2, 3, 6 and 9%). The effects of lime content and curing period on the bearing ratio and tensile strength characteristics of the stabilized overburden and fly ash mixes are highlighted. Unconfined compressive strength test results cured for 7, 28 and 56 days are presented to develop correlation between different tensile strengths and unconfined compressive strength. Empirical models are developed to estimate bearing ratio and tensile strength of mine overburden–fly ash–quick lime mixtures from unconfined compressive strength test results.
Starting Page	449
Ending Page	459
Page Count	11
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	30
Issue Number	2
e-ISSN	15731529
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-11-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Compressive strength Tensile strength Bearing ratio Fly ash Overburden Lime Geotechnical Engineering & Applied Earth Sciences Waste Management/Waste Technology Hydrogeology Civil Engineering Terrestrial Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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