Laying and curing the Ferro cement outer layer
?Sieve a quantity of sand finely.
?Prepare a cement mix 1: 3 to a workable stiff paste and place ¾” thick cement rendering on the outer
surface of the chicken mesh. Place a second layer ¾” thick over the first layer of cement. It is
important to place both layers of cement on one day.
?Place the prepared cement mix on the raised lip at the top of the tank. The finished lip must be 3” high
and 1 ½ “ thick. Also place cement on the chicken mesh cylinder.
?Smoothen the outer surface of the cement before the rendering dries
?Leave the cemented structure to cure for two (2) days. Keep the tank moist and under shade. Gunny
bags (Jute hessian) can be used on the top surface and these can be kept wet during the curing period.
Spray water on the outside of the tank regularly during the curing period.
28- Place first layer of cement
29- Place second layer of cement 30- Place cement at base
31- Smoothen outer surface
32- Smoothen lip of tank
33- Allow tank to cure
Laying the Ferro cement inside the tank and curing the tank
?Set up sturdy scaffolding around and over the tank so it can be accessed through the opening at the top.
A workman can then climb into the tank and unscrew the bolts of the ten mild steel frames and remove
the frames along with the metal ring that linked them together at the top.
?Prepare a cement mix 1: 3 to a stiff paste and place ¾” thick layer on the inside of the tank.. The base
should be given a layer of cement to a thickness of 1” up to a height of 12”
?Prepare a slurry mixture with a suitable waterproof agent (Pudlo) and smoothen the inside of the tank
surface
?Allow the inside of the tank to cure for 14 days and ensure that the surface is kept wet thought
the curing period.
?Six (6) days after the curing period fill the tank slowly, 12” at a time.
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