Model House
Methods used
Floor plan
Cost comparison
Proposed "Seth Sihila" house
Technical data in brief

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Advisory Services - Housing

AFFORDABLE & ENVIRONMENT FRIENDLY MODEL HOUSE AT CHPB

Low-cost methods used:

The following low cost  methods were used during construction of the model house at CHPB premises.
 

1. Quarry dust and Cement :

Quarry dust and cement mixed to the ratio of 10 : 1 built with slip form (i.e. steel plates moved up along the concrete columns using screws.)

Cost per sq.ft. : Rs.48/- (wall)

2. Gravel, quarry dust & cement :

Gravel, quarry dust & cement mixed to the ratio of 5:5:1 built with slip form. (as above 1)

Cost per sq.ft. : Rs.45/- (wall)

3. Clay bricks :

i. Clay, sand & cement mixed to the ratio of 10:10:1 and made with Sinwa Ram . (i.e. a machine used to form and compact the bricks.

ii. Clay, quarry dust & cement mixed to the ratio of 10:10:1 and made with Sinwa Ram.

Cost per sq.ft. : Rs.38/- (wall)

4. Clay and cement :

Clay and cement mixed to the ratio of 10 : 1 built with slip form. (as above 1)

Cost per sq.ft. : Rs.43/- (wall)

5. Gravel and cement :

Gravel and cement mixed to the ratio of 10 : 1 built with slip form. (as above 1)

The special feature here is instead of pre-stressed columns, a column constructed out of commercially available OS bricks is used.

Cost per sq.ft. : Rs.43/- (wall)

 

6. OS bricks/Terra bricks :

Cement stabilized soil bricks with interlocking arrangement produced commercially is used.

1st layer laid on cement  & sand mortar mixture. Subsequent layers built with cement & soil slurry.

Cost per sq.ft. : Rs.77/- (wall)

7. Cement blocks : Size of the block 17"x4"x8" produced commercially is used.

Cost per sq.ft. : Rs.84/- (wall)

Floor Plan & Elevation:
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Floor area : 582 Sq.ft.
Wall area  : 1090 Sq.ft.
Roof  : GI sheets
Detailed Plan : Click here

 

Floor Plan

Front Elevation

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Cost Comparison against Material :
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COST COMPARISON OF DIFFERENT WALL TYPES (WITH COLUMN COSTS)

1 SOIL CEMENT STABILISED WALL- OS COLUMNS(1:10)
2 QUARRY DUST CEMENT STABILISED WALL (1:10)
3 BLOCK WORK WALLS
4 BRICK WORK (4'') WALLS
5 QUARRY DUST CEMENT SOIL STABILISED WALL (1:10:10)
6 QUARRY DUST CEMENT CLAY STABILISED WALL(1:5:5)
7 OS BRICK WALL
8 SOIL CEMENT STABILISED WALL- OS SPECIAL COLUMNS(1:10)

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Information: chpb@sltnet.lk