MOULDING

Moulding

After mixing, it should be placed in the mould before 30 minutes.

So, six moulds were used at a time to make the process very fast. In this project, the bricks were moulded manually by hand ie., hand moulding. And these bricks were ground moulded bricks. The following are the steps involved in moulding,

o   A ground was selected, which was nearer to the mixing place and having smooth surface.

o   Then, the ground was made into uniform level and fine sand was sprinkled over it.

o   After that, the crude oil was applied in the inside surface of the mould for fibrous concrete bricks and water was applied for padobe bricks.

o   Now the mould was placed over the ground.

o   The lump of mix was taken and it was placed in the mould.

o   Then the mix was pressed or forced in such a way that it fills all the corner of the mould.

o   The extra or surplus mix was removed either by wooden strike or the metal strike or frame with wire.

o   The mould was lifted and the raw brick was left on the ground.

o   Then, the mix number of the brick was marked on the top.

o   After that, the fine sand was sprinkled over the bricks to avoid the voids and to make the surface smooth.

o   Then, the next brick was prepared nearer to the older brick continuously.

o   Ten bricks were casted for every proportion.