presentation on waterproofing of basement (omar faruqe hamim,l2/t1,buet)

THE PROCESS OFWATERPROOFING OF

BASEMENT

What is a basement ?

Floors of a building that are either completely or partially below the ground floor. 

Waterproofing vs Damp-proofing

Waterproofing prevents the passage of water in the presence of hydrostatic pressure.

Damp-proofing retards the absorption of moisture in the absence of hydrostatic pressure.

Why waterproof a basement ?

Hydrostatic Pressure

Concrete cracks

Capillary Action

Vapor Transmission

Condensation

HYDROSTATIC PRESSURE

Wall Deflection

Lateral Stresses

Stress Cracks and

Floor Slab Uplift

Hydrostatic

Pressure

Hydrostatic

Pressure

Hydrostatic

Pressure

Wall

Crack

Basement Floor

Basement

Wall

Basement

Wall

HYDROSTATIC PRESSURE

Saturated Wall Assembly

Pressure

Basement Flood

Insulation/Vapor Barrier

Surface Finish Damaged

Hydrostatic Pressure can cause – Basement Flooding + Structural Damage + Property Damage

Water

Pocket

Minimal Wall Protection

HYDROSTATIC PRESSURE

CONCRETE CRACKS

Foundation/Soil Settlement Concrete Shrinkage

Construction Joints

Concrete Capillaries

Water Pocket

Minimal Wall Protection

Water Intrusion

Capillary Development

Foundation Wall

Capillaries

CAPILLARY ACTION

Water Pocket

Insulation/Vapor Barrier

Saturated Wall Assembly

Mold & Mildew

Dampness on Floor

Moisture infiltration results in – Unhealthy Air + Dampness + Wall Assembly Damage

Minimal Wall Protection

CAPILLARY ACTION

65% RH45% RH

RH = Relative Humidity

Water

Vapor

55% RHWater Vapor

Minimal Wall Protection

VAPOR TRANSMISSION

What Is A Quality Waterproofing System? Preventing the passage of liquid water in

the presence of hydrostatic pressure.

Protection.

A drainage system reducing hydrostatic pressure.

Accessory products.

METHODS OF WATERPROOFING OF BASEMENT

1. Surface & Ground Water Control

METHODS OF WATERPROOFING OF BASEMENT

METHODS OF WATERPROOFING OF BASEMENT

2. Waterstops

Different Types of Waterstops

METHODS OF WATERPROOFING OF BASEMENT

Application of Waterstops at Construction Joints

3. Cementitious System

METHODS OF WATERPROOFING OF BASEMENT

METHODS OF WATERPROOFING OF BASEMENT

4. Structurally Integral Protection System

5. Tanked or Membrane System

Materials Used

METHODS OF WATERPROOFING OF BASEMENT

Applying Bitumen Primer

METHODS OF WATERPROOFING OF BASEMENT

Applying Bituminous Felt

METHODS OF WATERPROOFING OF BASEMENT

6. Drained Cavity Protection System

METHODS OF WATERPROOFING OF BASEMENT

7. Applying Ferrocement On Shore Piles

METHODS OF WATERPROOFING OF BASEMENT

METHODS OF WATERPROOFING OF BASEMENT

Applying Ferroecement Ferrocemented Shore Piles

REMEDIAL SYSTEM OF BASEMENT WATERPROOFING

REMEDIAL SYSTEM OF BASEMENT WATERPROOFING

Different Methods

GROUP 7 AT MOHAMMADPUR SITE

GROUP 7 AT KELLAR MOR SITE