S RI L ANKA CHRONOLOGICAL ORDER 1980 –Sarvodaya/Danida Project(capacity up to 10 - 15 Cm) 1990 – CWSSP Project (capacity up to 40 Cm) 1995-NWS&DB – Small town water supply and sanitation project (capacity up to 40 Cm) 2000-NWS&DB – ADM 3rd project (capacity up to 100 Cm)
H OW T O C ONSTRUCT F ERROCEMENT T ANK ? Tank Base Tank wall Tank Dome NEXT
C ONSTRUCTION MISTAKES OCCURRED DURING CONSTRUCTION PERIOD Pipes arrangement (inlet,outlet &wash out pipe) not placing correct place Tank wall not align correctly Dome is not construct ' correct shape Wall thickness is increased than recommended thickness 4.5 mm dia GI wire not connected to base properly 4.5 mm dia GI wire is not fixed to the wall in correct distance Neglect water cement ratio Neglect quality of materials Curing is not done properly NEXT
P IPES ARRANGEMENT ( INLET, OUTLET & WASH OUT PIPE ) NOT PLACING CORRECT PLACE Back
Description Cost for Ferro cement tank SLR Cost for concrete tank SLR Percentage reduction compared to concrete tank 30 cum ground tank 110740280000 60 % 50 cum ground tank 154560413000 67 % 30 cum elevated tank 6.8m (height) 341180585900 42 % 60 cum elevated tank 9 m (height) 6656301078700 38 % BACK
A DVANTAGES OF FERROCEMENT TECHNOLLOOGY Law cost for general types of constructions Simplicity in technology Not much skill labour required Required tools and equipment can be found easily Light weight and therefore easy handling Easy repairs and maintenance Adequate strength for rural development Adequate durability Protection against sunshine and flooding Easy removal
O THER A PPLICATION OF FERROCEMENT TECHNIQUES Intake well dome Water pond Patrician wall Domestic water storage tank Rainwater harvesting tanks toilets Chlorine house NEXT
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