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Q: Which of the following is NOT the property of material, which is used for damp proofing course?
  • A. The material should be perfectly pervious
  • B. The material should be flexible so that it can accommodate the structural movement without any fracture
  • C. The material should be such that leak-proof jointing is possible
  • D. The material should be durable and should have the same life as that of the building
Correct Answer: Option A - Damp proofing–Dampness in building refers to the access and penetration of moisture into the building through the walls, floor, roof etc. Provision of damp proof course prevents the entry of moisture in the building. Requirements for materials for damp-proofing The following are the requirements of ideal materials for damp proofing– • They should be impervious • They should be durable with life span as long as that of the building • They should be capable of bearing the load that may be imposed on them. • They should be dimensionally stable. • They should be flexible enough to accommodate the structural movements without undergoing any fracture. • They should be inexpensive.
A. Damp proofing–Dampness in building refers to the access and penetration of moisture into the building through the walls, floor, roof etc. Provision of damp proof course prevents the entry of moisture in the building. Requirements for materials for damp-proofing The following are the requirements of ideal materials for damp proofing– • They should be impervious • They should be durable with life span as long as that of the building • They should be capable of bearing the load that may be imposed on them. • They should be dimensionally stable. • They should be flexible enough to accommodate the structural movements without undergoing any fracture. • They should be inexpensive.

Explanations:

Damp proofing–Dampness in building refers to the access and penetration of moisture into the building through the walls, floor, roof etc. Provision of damp proof course prevents the entry of moisture in the building. Requirements for materials for damp-proofing The following are the requirements of ideal materials for damp proofing– • They should be impervious • They should be durable with life span as long as that of the building • They should be capable of bearing the load that may be imposed on them. • They should be dimensionally stable. • They should be flexible enough to accommodate the structural movements without undergoing any fracture. • They should be inexpensive.