7 th sem internship ppt (1)
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The document summarizes a presentation on lining a main canal using Cementious Geo-synthetic Concrete Matress (CGCM). Some key points: - CGCM is a flexible concrete-impregnated fabric that hardens on contact with water to form a durable, waterproof and fire-resistant concrete layer without needing plant/mixing equipment. - It has advantages over traditional concrete lining like lower installation time and cost, very low maintenance needs, and ability to bridge cracks in existing infrastructure. - The process involves dewatering, excavation, laying a sub-base and geotextile, placing and pumping concrete into the CGCM using a ramp for access. Key walls and fencing are also
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This document discusses concrete cloth, a flexible cement-impregnated fabric. Concrete cloth hardens when hydrated to form a thin, durable concrete layer. It was originally developed for emergency shelters but is now used more widely in civil engineering. The document outlines the material properties of concrete cloth, including its strength and physical characteristics. It also describes how concrete cloth is installed, including preparation of the subgrade, placement of the cloth, cutting, and anchoring. Applications of concrete cloth include ditch lining, slope protection, pipeline protection, and more. Key advantages are that it is portable, rapid to install, easy to use, and more cost effective than conventional concrete.
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7 th sem internship ppt (1)
- 1. A PRESENTATION BY: “LINING OF TALADANDA MAIN CANAL BY USING CEMENTIOUS GEO-SYNTHETIC CONCRETE MATRESS(CGCM)” ANURUP JENA(1801227111) PRANAYA KUMAR PRADHAN(1801227328) ASHUTOSH MAHAPATRA(1801227128) 7TH SEMESTER BTECH, CIVIL ENGINEERING INDUSTRIAL TRAINING ON
- 2. WHY CGCM?
- 3. ● Cementious Geo-synthetic Concrete Mattress (CGCM), is a flexible, concrete impregnated fabric that hardens when hydrated to form a thin, durable, water proof and fire-resistant concrete layer. Geosynthetic Cementitious Composite Matt concrete does not require plant or mixing equipment as it is positioned on surface and added with water CEMENTIOUS GEO-SYNTHETIC CONCRETE MATRESS(CGCM
- 4. ADVANTAGES OF CGCM LINING OVER CONCRETE LINING INSTALLATION TIME Concrete lining is relatively a time consuming process. LOW MAINTAINANCE very long-life span of over 120 years and maintenance cost is very low INSTALLATION EASE can be supplied in rolls and this allows installation in locations previously inaccessible for conventional concrete. COST lower cost when compared to traditional concrete CRACK BRIDGING particularly important when relining existing concrete infrastructure where the CGCM will need to bridge cracks in the existing substrate.
- 5. STEPS • Dewatering of standing/ponding water • Excavation, loading, unloading and carriage by mechanical means of all kinds of soil/slushy soil/debris from bed and slopes • Plastering and stacking at site for premeasurement conveying from stacks and admixing of sand & moorum in proportion and laying sub-base in layers not exceeding 100mm thick and Laying 150GSM non-woven geotextile for separation and filtration purpose below CGCM. • Placing CGCM and pumping M25 grade concrete into it.(Bed slope of
- 6. STACKING SAND AND MOORUM (40% sand & 60% moorum)
- 10. RAMP
- 11. OTHER CONSTRUCTIONS KEY WALL The key walls are constructed to hold the CGCM lining and drainage pipes in place. The other role of key walls is to act as a base structure for the wire welded mesh fencing. FENCING People cannot throw debris/unwanted materials into the canal. Fencing will also act as a typical Dowla/Dowel.