Flood resistant construction Part 1

Handbook on design and construction of housing for flood-prone Rural Areas of Bangladesh

http://www.adpc.net/igo/category/ID189/doc/2013-p74Wob-ADPC-handbook_complete-b.pdf

Plinth

Cement stabilization

-          Mixture of earth and cement

-          This resist water better than an un-stabilized one.

Brick Perimeter wall

-          Goes around earth plinth and resist erosion from the sides

Brick and concrete

-          More expensive option. This is more durable and flood resistant.

Post

Coating lower end

-          Least expensive

-          “Protects lower end of bamboo/ timber post typically embedded into the ground”

-          “Provides mainly damp-proofing, does not prevent much insect or fungal attack.”

-          Extends life of bamboo by some years

Concrete stump (Kaatla)

-          “Local method for protecting the base of bamboo/ timber posts by supporting on concrete stumps embedded into the plinth or ground and connecting them by MS (mild steel) clamps.”

-          Advantage is that bamboo posts are replaced less.  Longer life span.

(Reinforced concrete) post

-         Expensive option. Resistant to deterioration of water.

-         All post should be RC.

Walls

Protection against Rainwater Splashing and flood

Detachable lower panels

-         A replaceable bottom part made of cheap material like straw that can be replaced at the end of flood season. The top part won’t be affected.

Painting with bitumen

-          Done with bamboo mat walls and CI sheet walls

-          “Molten bitumen, Mobil or sump oil, or a combination of these can be used.”

Protective lower panel & rainwater protector over door and gable end.