Objective

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Sanitation for Uduzhapa and Raric, Ecuador

• Objective
• Community involvement
• Project schedule and logistics
• Design specifics
• Layout
• Pit and piping
• Superstructure design
• Quantity Takeoff and budget

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Objective

• To provide means of sanitation by installing
  on-site sanitation units (pour-flush latrines)
• Most prevalent illnesses
• Dysentery
• Malnutrition
• Parasitic infection

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Community Involvement

• Labor divisions each responsible for own
• Town hall meetings
• Comite por mejoras
• FISE in-kind donations
• Etapa skilled labor donations
• Cuenca University students
• Governor's office of Azuay Province

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Week 1 5/25 to 5/31
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Weeks 2 and 3 5/31-6/14
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Project Schedule

• Preparations
• Design finalization
• Material order
• Forms
• Training sessions

Team 2 15 days
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People

• 15 students
• 1 professional at a time
• 1 faculty advisor
• Requested local community labor
• 3 skilled laborers from Cuenca

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Schedule per unit
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Design Specifics

• Maps
• Piping
• Pit and Lining
• Superstructure

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Piping
Toilet bowl
75 mm
gt20 mm
30 mm
gt 1 mm

• Drainage for sink and shower, going into or our
  of page, whichever appropriate (site specific)
• 130 slope also
• 50 mm diameter

110 mm diameter
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124 cm
Pit and Slab
Slab Pit
124 cm
Three slabs 41x124 each, with rebar handles Concre
te reinforced with steel mesh, diameter 6 mm,
grid 15x15cm
100 cm
Impermeable lining for top 0.25-0.5m
12 cm overlap
gt 10 cm
Slab thickness 5 cm with a corrugated metal base
Half-mortared rock to allow for leaching
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Pit Slab Calculations
Weight of one piece is 170 lb
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Super Structure
Block Only Design
Top View
1st level 2nd level 3rd level
drain
30 cm

• Totals per latrine
• Blocks per latrine 16216178
• Front 31 (1/2 block 1)
• Sides 2(55)(44) 9 82
• Back (45)(54) 40
• 10 (broken blocks)
• Levels 9
• Cuts in half 4.5
• Block cost 0.36165 59.40
• Pallets 178/144 1.2

160 cm
Room left for shower
160 cm
Room left for sink
drain
10 cm
10 cm
10 cm
Block Layout
In the future, with added water service, the
owners may want to add sink and shower to their
latrine
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Block Only Design
Front View
app. 20 cm overhang each side
4 x 5 cm lumber
60 cm
Horizontal wire support embedded In mortar every
third level
180 cm
160 cm
1 40 cm
200 cm
10 20 40 cm
Slab 10 x 200 x 200 cm
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Block Only Design
160 cm
40 cm O.C.
Side View
32.5 cm
32.5 cm
40 cm
10 mm rebar
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Tying roof to walls
Filled core
Finished, it will look something like this
Thin metal strap embedded in core fill
Front
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Roof Details
Fiberglass roof-covering
Nailing every 30 cm
240 cm
4 x 5 cm lumber
5 rafters 4 x 5 x 185 cm 2 top plates 4 x 5 x
160 cm 4 roof straps 2 ½ fiberglass roofing
pieces 2.4mx1.1m 30 roofing nails 22 (2.6/12)
pitch
60 cm
Front
160 cm
90 cm
90 cm
45 cm
225 cm
Right Side
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Top View
Block Only Design
Cores filled to top with 10 mm rebar
Horizontal wire support embedded In mortar every
third level
Hole-filling and rebar placement
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Super Structure Foundation
10 mm rebar to tie in wall, tied to grid with
wire
15 cm x 15 cm x 6 mm steel grid
100 mm
Approx. 400 mm protrusion
80 mm
300 mm
200 mm
10 mm rebar
250 mm
125 mm
2-3 mm stone
2 m
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Foundation Slab Calculations
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Super Structure Foundation
125 mm to center of turn down
2000 mm
Rebar
Steel mesh grid
Rebar and turn down layout
(square, not to scale)
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Quantity Takeoff and Pricing
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Questions? Comments?