CONCRETE, MASONRY & PASTERING

Concrete

is either plain or reinforced. Plain concrete is artificial stone as a result of mixed cement, fine aggregates, coarse aggregates and water.

Reinforced Concrete

a concrete with reinforcement embedded in such a manner that the two materials act together in residing forces.

Cement were made of;

Lime, Silica, Alumina, Magnesia, Iron oxide & Sulfur trioxide

GRAVEL

These are the particles that retained in 5mm sleve. also known as Coarse Aggregates

sand

(Fine Aggregates) These are the particles passing in 5mm sleve.

CHB

It is also classified as load bearing and non-load bearing blocks. Load bearing block are those whose thickness ranges from 15 to 20 cm and are used to carry load aside from its own weight.

Method of Computation for CHB

1. Fundamental Methods

2. Area Methods

Non bearing blocks

those whose thickness is 7 to 10 cm and intended for walls, partitions, fences & dividers.

Plastering Method of Computation

1. The Volume Method

2. Area Method

Mortar are use for?

1. In between the layers of CHB.

2. Filler for the hollow core or cell of the blocks. This filler could be pure

mortar or mortar with gravel for economy.

3. Fine screened sand for plastering.

Method of Computation for Cement Mortar for CHB

1. Volume Method

2. Area Method

3. Per hundred block Method.