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dc.contributor.author Bandara, WW
dc.contributor.author Mampearachchi, WK
dc.contributor.editor Pasindu, HR
dc.date.accessioned 2022-06-09T04:48:16Z
dc.date.available 2022-06-09T04:48:16Z
dc.date.issued 2011-07
dc.identifier.citation Bandara, W.W., & Mampearachchi, W.K. (2011). The cement stabilized soil as a road base material for Sri Lankan roads [Abstract]. In H.R. Pasindu (Ed.), Proceedings of the Transportation Research Forum 2011 (p. 41). Department of Civil Engineering, University of Moratuwa. https://uom.lk/sites/default/files/civil/files/TRF%202011_0.pdf en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18210
dc.description.abstract Dense Graded Aggregate Base has been used for road construction work in the Sri Lanka for many years. Rocks which are used to produce the aggregate are not available everywhere in the island. For example it is difficult to find suitable rocks in Northern part of Sri Lanka. Further, the available rocks are gradually decreasing due to the usage, land ownership and ecological issues. Therefore, cement stabilized soil can be used as an economically viable alternative material for the road base. Soils that can be stabilized are coarse granular, Sandy, Salty and Clayey materials. Coarse granular materials are not widely available in Sri Lanka. Sandy materials are freely available and give higher elastic modulus than Salty and clayed materials. Cement stabilized base need at least 97% compaction of maximum dry density. According to the findings during the construction, it has been revealed that the most practical thickness of the cement stabilized base is 200mm for achieving the compaction. In order to control shrinkage cracks, unconfined compressive strength at seven days is not more than 4 MPa. This can be increased to 6 MPa by providing an Asphalt Crack Relief Layer. For road pavements with stabilized base, critical tensile stress or strain is located at the bottom of the stabilized layer and the tensile stress should be limited to control the fatigue cracking for required number of axial load repetitions. Above mentioned limitations cannot be analyzed by the conventional Structure Number Based Pavement Design. Hence a Mechanistic – Empirical Method need to be used for the pavement design. This is difficult to carry out in general practice. Therefore, through our project Pavement design charts for the cement stabilized base with Sandy soil were developed by a Mechanistic – Empirical Method. en_US
dc.language.iso en en_US
dc.publisher Department of Civil Engineering, University of Moratuwa. en_US
dc.relation.uri https://uom.lk/sites/default/files/civil/files/TRF%202011_0.pdf en_US
dc.subject Dense graded aggregate base en_US
dc.subject Cement stabilized soil base en_US
dc.subject Asphalt crack relief layer en_US
dc.subject Structure number en_US
dc.subject Mechanistic empirical method en_US
dc.title The cement stabilized soil as a road base material for Sri Lankan roads en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Civil Engineering en_US
dc.identifier.year 2011 en_US
dc.identifier.conference Transport Research Forum 2011 en_US
dc.identifier.place Colombo en_US
dc.identifier.pgnos p. 41 en_US
dc.identifier.proceeding Proceedings of the Transport Research Forum 2011 en_US
dc.identifier.email wwbandara@gmail.com en_US
dc.identifier.email wasanthak@uom.lk en_US


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