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dc.contributor.advisor Mampearachchi, WK
dc.contributor.author Bandara, WW
dc.date.accessioned 2015-07-08T05:42:27Z
dc.date.available 2015-07-08T05:42:27Z
dc.date.issued 2015-07-08
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/11007
dc.description.abstract Soils that can be stabilized are Granular, Sandy, Salty and Clayey materials. In Sri Lanka, lower quality coarse–grained and sandy materials are available which give higher elastic modulus than fine–grained material (Salty and Clayed materials). In order to control shrinkage cracks, Unconfined Compressive Strength (UCS) at seven days should be limited. According to the findings, it was revealed that the most practical thickness of the cement stabilized base is 200mm and the most practical UCS at seven days is 3-4MPa to achieve compaction and the decided life with economical pavement thickness. When the strength is measured in terms of CBR (California Bearing Ratio) and UCS, different cement contents arise from these two measuring methods. Therefore this study was performed to identify correct strength measure. The correct strength measure is UCS only and no relationship was found between UCS and CBR. For road pavements with stabilized base, critical tensile stress or strain is located at the bottom of the stabilized layer. To control the fatigue cracking for required number of axial load repetitions, this tensile stress should be limited. Above mentioned limitations cannot be analyzed using the conventional pavement design based on Structural Number principle. Hence a Mechanistic–Empirical Method is used to analyze pavements with a stabilized base which is difficult to carryout in general practice. Therefore, through this study, pavement design charts for pavements having 200mm thickness of a Cement Stabilized soil Base (CSB) were developed by a Mechanistic– Empirical Method for various sub grade and traffic classes. According to the developed pavement design chart, it was revealed that CSB can be used for roads with traffic less than 1.5x106 standard axial load repetitions. en_US
dc.language.iso en en_US
dc.subject Cement Stabilized soil Base en_US
dc.subject Unconfined Compressive Strength (CUS)
dc.subject California Bearing Ratio (CBR)
dc.subject Mechanistic Empirical Method
dc.subject CIVIL ENGINEERING - Thesis
dc.subject HIGHWAY AND TRAFFIC ENGINEERING - Thesis
dc.subject | CEMENT
dc.subject ROAD | MEng in Highway & Traffic Engineering
dc.subject MEng in Highway & Traffic Engineering
dc.title The Cement stabilized soil as a road base material for Sri Lankan roads en_US
dc.type Thesis-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.degree MSc. en_US
dc.identifier.department Department of Civil Engineering en_US
dc.date.accept 2014
dc.identifier.accno 107249 en_US


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