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3.1 BASIC MATERIAL .
The basic material for producing concrete roof tiles are : CEMENT and SAND .
But for making the surface smoother with low cost , some factories especially in
Indonesia using calsium powder . We get Calcium Powder in Indonesia from Calcium
Mountain . But in several places , which don't have Calsium Powder , you can use
another material as long as looks like powder and cheap enough . But if there
are no another material like that , we can use only Cement and Sand , but for
surface smoothing you should use pre-sieved sand .
3.2 SECONDARY MATERIAL :
Secondary material , are materials that are used to help the production easier ,
and some of them are necessary . The second material are :
1. Textile : We need textile for layering the
Production Plate , and we use ordinary textile that usually used for making
trousers .
2. Brush : We need Brush for oiling the
upper mould surface , each time the roof casted , for releasing the roof tile
from the upper mould .
3. Mould Oil : The mould oil is
needed for oiling the upper mould surface each time the roof casted . You can
make the Mould Oil by yourself from 1 Liter Engine Oil ( better if you use
Engine Oil for MotorBike ) , mixed with 10 Liter Kerosene .
3.3.
MATERIAL COMPOSITION :
BASIC MATERIAL :
For Roof :
The basic materials composition for roof usually are 1 Cement + 2 Calsium Powder + 2 Sand
. The explanation of this composition is : Cement is used for Strength as
the tile need Cement for it's final strength . Calsium Powder is used for
surface smoothing but we also can use any other material for smoothing if there
isn't calcium powder in your area , like smaller size sand , etc .
In
Indonesia we use Calsium Powder for surface smoothing because it is cheap . But
in some area which Calsium Powder aren't available , then we can use
smaller size sand ( sieved sand ) . And the last basic material is Sand , we
need sand for filling material , sand is the cheapest material .
We can adjust the 1 + 2 + 2 composition as needed . We can use 1 + 2 + 3 , or 1
+ 2,5 + 2,5 . It is depend on the kind of material in your area , and depend of
the the roof quailty you want to produce .
For Pave :
The basic materials for Pave is just Cement and Sand , with
composition of : 1 Cement + 8 Sand , or 1 Cement + 10 Sand , or 1 Cement +
12 Sand . The more cement factor the more strong result but also will increase
the product cost and price .
3.4 FINISHING MATERIAL :
The finishing material for concrete roof is PAINT . The painting method is using
spray . You need Air Compressor Unit and Spray Gun . And you can used any kind
of Paint for the roof . But the best Paint are Concrete Roof Paint , the paint
specially produced for concrete roof . There are two kind of concrete roof Paint
, water base and oil base . Water base is cheaper , but Oil Base is Shiny .
3.5. RACK :
You
need to prepare Racks for temporary tiles stay during casting process and to
leave the tiles one day before the tiles are strong enough to be released from
the pallets .
We
usually use Racks made from wood / timber . But you can use any kind of racks
you like . Our wood racks model and measurement is :
Length
300 cm , Width 25 cm , High 10 cm .
And we put the roof
with the pallet on the wood rack like the pictures bellow :
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1. Put the Roof Tiles ( with the pallet ) on the rack .
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3. Then put the others roof on the rack .
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2. Put another rack on the rack .
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4. Repeat until up to 8 stacks .
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3.6. PALLETS :
You
need to prepare pallets , just use the supplied " Pallet Maker " to produce the
pallets . You only need 1000 pcs of pallets for each roof machine , and the
pallets can be use for more than 3 years . When some pallets broken , just use
the " Pallet Maker " to produce new pallets .
Please
Click Here
to refer to the Pallet Maker explanation .
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