What are the materials used for damp proofing?
Following are the materials which are commonly used for the damp-proofing:
- Hot Bitumen.
- Mastic Asphalt.
- Bituminous Felts.
- Metal Sheets.
- Combination of Sheets and Felts.
- Stones.
- Bricks.
- Mortar The mortar.
What are the damp proofing materials and their specifications?
Materials
- Flexible materials like butyl rubber, hot bitumen (asphalt), plastic sheets, bituminous felts, sheets of lead, copper, etc.
- Semi-rigid materials like mastic asphalt.
- Rigid materials, like impervious brick, stone, slate, cement mortar, or cement concrete painted with bitumen, etc.
- Stones.
What are the methods of damp proofing?
Methods Of Damp Proofing
- Membrane damp proofing. In this method of damp proofing a water repellent membrane or damp proof course(D.P.C.) is introduced in between the source of dampness and the part of building adjacent to it.
- Integral damp proofing.
- Surface treatment.
- Cavity wall construction.
- Guniting.
- Pressure grouting.
Which material is best for damp proof course?
Two layers of stone slabs or slates laid in Lime, Cement and Sand Mortar (1:1:6) make a best DPC. They can also be laid in Cement Sand Mortar. It is used where a good quality of stone is easily and cheaply available.
Which cement is best for DPC?
Cement concrete is however, commonly adopted material for DPC at plinth level, 38 to 50mm thick layer of cement concrete M15 (1:2:4 mix) serves the purpose under normal conditions.
What is the most commonly used material for DPC?
Rich Concrete is the most commonly used material in DPC. Usually, rich concrete in the proportion 1:2:4 that is painted with two relative coats of hot bitumen is used for the horizontal damp proof course.
What is the difference between DPM and DPC?
DPC stands for damp proof course whilst DPM stands for damp proof membrane. A DPC is a material placed between courses of brickwork to stop the rise of water up the walls. The types of products used can include polythene materials, pitch polymer combinations or even materials such as slate.
What is the best damp proofing method?
When it comes to damp proofing walls with damp proof paint, the best results are achieved by applying the paint to the background substrate and then covering with a render or plaster. This creates a sandwich system that holds the damp proof layer within the makeup of the wall, keeping moisture at bay.
Which stone is suitable for damp proofing?
Most suitable for roof covering, flooring, damp proofing and partitions….
| List 1 | List 2 |
|---|---|
| A. Granite | 1. Ornamental Work |
| B. Marble | 2. Sea Walls |
| C. Lime stone | 3. Flooring |
| D. Slate | 4. Manufacture of Cement |
What is OPC and PPC cement?
Portland Pozzolana Cement is a variation of Ordinary Portland Cement. Pozzolana materials namely fly ash, volcanic ash, are added to the OPC so that it becomes PPC. Pozzolana materials are added to the cement in the ratio of 15% to 35% by weight. OPC is the most commonly used cement in construction.
What is the difference between damp proofing and waterproofing?
There is a distinct difference between dampproofing and waterproofing. Dampproofing is intended to keep out soil moisture while waterproofing keeps out both moisture and liquid water. Dampproofing is a coating, usually asphalt-based, that is either sprayed on or hand applied to the outside of the wall.