Effect of metakaolin on the mechanical properties of lateritic soil-Reference-Cited by-同舟云学术

Effect of metakaolin on the mechanical properties of lateritic soil

Published:2022-12-01 Issue:4 Volume:9 Page:211-218
ISSN:2052-6156
Container-title:Geotechnical Research
language:en
Short-container-title:Geotechnical Research

Author:

Dao Phuc-Lam¹,Bui Van-Duc²,Onyelowe Kennedy C²,Ebid Ahmed M³,Le Van Duong⁴,Ahaneku Isiguzo E⁵

Affiliation:

1. Faculty of Civil Engineering, University of Transport Technology, Hanoi, Vietnam; GGG Research Lab, Department of Civil Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria

2. Research Group of Geotechnical Engineering, Construction Materials, and Sustainability, Faculty of Civil Engineering, Hanoi University of Mining and Geology, Hanoi, Vietnam; GGG Research Lab, Department of Civil Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria

3. Department of Structural Engineering, Faculty of Engineering, Future University in Egypt, New Cairo, Egypt

4. Department of Science and Technology, Vietnam Ministry of Transport, Hanoi, Vietnam

5. Department of Agricultural and Bioresources Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria

Abstract

The effect of varying additions of metakaolin (MK) on the mechanical properties of lateritic soil to be utilised in the construction of pavement foundations was studied. The preliminary test results show that the soil is highly plastic and lacks sufficient mechanical ability to be used as a compacted subgrade/sub-base for flexible pavement foundation. Kaolin was calcinated to form MK, which was utilised at proportions of 3, 6, 9 and 12% by weight of the dry lateritic soil to stabilise it. California bearing ratio (CBR) and unconfined compressive strength (UCS) tests were conducted on the MK-treated lateritic soil to determine the suitability of the treated materials in the construction of compacted subgrade and/or sub-base layers of flexible pavement. The stabilisation test results show that MK has the potential to be utilised to improve the CBR and UCS of lateritic soil with a peak proportion of 6% MK by weight of dry soil, beyond which the soil experiences a decline in strength formation.

Publisher

Thomas Telford Ltd.

Subject

Geotechnical Engineering and Engineering Geology,Earth and Planetary Sciences (miscellaneous)

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jgere.22.00046

Reference32 articles.

1. Investigation of premature failure mechanism in pavement overlay of national highway of Bangladesh

2. Evaluating the Performance of Cementitious Treated/Stabilized Very Weak and Wet Subgrade Soils for Sustainable Pavement

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