cement stabilization of soils ppt
TRANSCRIPT
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Stabilization of low quality aggregate or soil can be done by mechanical, chemical, electrical or thermal.Chemical stabilization involves addition of cement, lime, fly-ash, bitumen, chemical compounds etc
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Two primary methods of soil stabilization
•Mechanical•Chemical or additive
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When unsuitable construction conditions are encountered, a contractor has four options;
1.Find a new construction site 2.Redesign the structure so it can be constructed on the poor soil.3.Remove the poor soil and replace it with good soil.4.Improve the engineering properties of the site soils.
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Advantages to soil stabilization
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Need of Stabilization
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Basic ingredients for cemented base/sub-base in pavement
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Environmental Benefits of Soil Stabilization
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Laboratory Test Requirements
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Advantages of Cement Stabilization
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Mix design
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Cement Stabilization process
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Tsunami Affected Area Rehabilitation Project (TAARP)- 1500 Million Grant in
Trincomalee District Funded By ADB-EU
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Roads Taken for rehabilitation
1.Trincomalee-Pulmoddai Road (7.0 km - 27.00 km & 27.00-47.5km)
2. Bhogahawatte-Pulmoddai Road (12.00 km-27.55 km).
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Road Before Construction Trincomalee-Pulmoddai Road (7.0 km - 27.00 km & 27.00-47.5km)
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Road Before ConstructionBhogahawatte-Pulmoddai Road (12.00 km-27.55 km).
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Pug mill
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Pug Mill
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Surface Preparation
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Sub base Surface under Preparation for CSB Laying
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Sieving the Soils collected from the Gravel Quarry
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Spreading Stabilized Gravel
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Leveling Stabilized Gravel
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CSB Surface is Leveled and Compacted
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Leveled & Compacted
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Levels and compaction is Carried out on the Completed CSB Surface
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Stabilization Process
• 1.Seiving Collected Gravel from Borrow Pit• 2.Seived Gravel is Processed to Pug-mill• 3.Processed Gravel is sent to Stabilization• 4.Gravel Stabilization Process• 5.Stabilized Gravel for Road Work
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Sand is Applied on CSB Surface to Maintain Moisture for Curing
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Geo-Textiles Laid on CSB Surface to Maintain Moisture for Curing
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Primed Surface after Curing
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Finished Cement stabilized Road after surfacing Complete
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THANK YOU