Masonry work- A Art of building a Structure
Masonry work is the basic process of binding individual
units such as bricks, concrete blocks, or stones together with mortar. Brick
and concrete blocks are the common types of masonry used in masonry work. The
activities include laying bricks or stones, the delivery and laying out the
stone with mortar, etc.
further understanding, (Refer course: Fundamentals
of Masonry). Here, different types of masonry work are described.
- Brick masonry
mortar in ratios of one part cement and six parts of sand for the brick masonry
should be mixed properly. A layer of mortar should be laid evenly on the
surface of the lower course. The courses of the brick shall be laid on the
mortar line as directed by the Engineer. For all the brickwork, scaffolding
should be provided and the joints should be filled with mortar. The brick
pointing work should also be carried out simultaneously with the laying of
bricks. Masonry should be kept moist on all faces for a minimum period of 7
days. The materials, labour, and equipment shall be provided by the contractor
for the completion of all brickwork.
wall and Parapet wall
The mortar of
one part cement and four parts of sand are to be prepared for the construction
of the partition wall and parapet wall. Brick masonry of 100mm or 150 mm thick
partition wall is to be laid below the ground level at a height. Scaffolding
should be provided and the planks should rest in a hole provided in the header
course. All face joints should be raked at the time of laying while the mortar
is in moist condition. The brickwork should be reinforced with a 2 number 8 mm
diameter bar at every fourth layer. The wall should be cured with water and
kept moist for at least 7 days.
- Block masonry
masonry work with Autoclave Aerated Concrete (AAC) Blocks of 200 mm thickness
in 3mm to 5mm thick block jointing mortar of approved make should be constructed
at all levels and depths. Before application of the mortar, the AAC blocks
should be dipped in the water. Openings should be cut with a handsaw, if
necessary. The first course of AAC block should be laid and leveled. Curing is not
required for ready-made jointing mortar.
A solid concrete block of 200 mm thickness in one part of cement and six parts of sand should be laid at all levels and depths. The concrete blocks should be laid in the mortar and thoroughly bedded in the mortar. The joints for plastering should be raked to a depth of 12 mm. The surface using solid concrete blocks should have a smooth finish with a layer of cement mortar.
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