dpc anas mkjbububbjubnjbjkbjkbjkbjknn.pptx

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1. Methods of Preventing Dampness Preventing Damp Proof Course (DPC ) Surface of Treatment Integral water-proof construction Special devices

2. Preventing Damp Proof Course Damp proof courses are barriers installed during construction to prevent moisture from rising through walls and floors .. Materials 1 .Bitumen 2. Plastic Sheets of Membranes 3 .Metal Sheets 4 .Slate 5 .Rubberized Asphalt 6 .Cementitious Coatings

3. Surface Treatment S urface treatments involve applying waterproof coatings or sealants to vulnerable areas such as walls , roofs, and foundations . This creates a protective barrier against water penetration and helps prevent dampness. MATERIAL 1. Waterproof Paints and Coatings 2 . Elastomeric Coatings 3 .Silicone Sealants 4 . Polyurethane Sealants 5 .Bitumen-based Products

4. Integral Waterproof Construction Integral waterproofing involves incorporating waterproofing agents directly into building materials such as concrete or mortar. This method ensures that the entire structure is inherently resistant to water infiltration. MATERIAL Admixtures Polymers Silicone-based Compounds Crystalline Waterproofing Agents 5 . Fly Ash

5. Special Devices Dampness can be prevented to a large extent by using special devices which are given below By constructing the external walls of sufficient thickness By using the bricks of good quality for constructing the external walls By building the walls in rich cement mortar By fixing down-water pipes in sufficient number so that water may not leak through the junction of wall and roof