This eBook helps you to better understand and manage drainage on construction sites.
CHAPTERS
1. SCOPE AND NATURE OF WATER MANAGEMENT
- What needs to be waterproofed in the backyard?
- Materials for waterproofing
- Roofs & roof damage
- Mould and Mildew
- Structural Damage
- Electrical problems
- Retaining walls, Swimming pools, Floors
- Drains, Irrigation pipes, Hoses, Watering cans
- Concrete
- Admixtures
- Waterproofing membranes
- Concrete sealers, Asphalt, Silicone sealant, Butyl liners, Fibreglass kits
- Plumbers tape
- Bentonite Clay liners
- Why Drainage is important
2. WATER MOVEMENT IN SOILS.
- The lateral movement of water
- Types of soil particles
- Gravity
- Surface tension
- Water adhesion
- Field capacity
- Infiltration
- Suction
- Saturation
- Soil Moisture
- Capillary water
- Hygroscopic water
3. UNDERSTANDING CAPILLARY ACTION
- Capillary migration
- Capillary fringe
4. MANAGING WATER AT THE SOURCE
- Rainfall
- Rainwater harvesting
- Stored water – dams, reservoirs, tanks
- Diverting storm water
- The water table
- Leaks
5. MANAGING SURFACE DRAINAGE
- Types of surface drainage systems
- Ditches and open drains
- Humps and hollows
- Levees and graded banks
- Biofilters
- Permaculture Swales
- Improving surface drainage after construction
6. MANAGING SUB-SURFACE DRAINAGE
- Improving soil drainage
- First decision: subsurface or surface drainage?
- Types of subsurface drains
- The water outlet
- Gradients
- Layout of drains
- Laying an agricultural (agi) drain
- Distance between drainage pipes
- Depth of drains
- Maintenance
7. STORM DRAINAGE
- Storm runoff
- Inlets
- Manholes
- Swales
- Storm water management
- Why drainage is important