METHOD OF BRICK MASONRY WORK

Description

Brick walls will be built for internal partition & as well as perimeter walls of the building. All brick walls will be constructed by maintaining the verticality of walls and the location of the wall as per the construction issued Architectural drawings / approved shop drawings for brick walls in each floor.

While constructing the brick walls, opening for the doors, windows & services will be provided according to the dimensions of doors, windows & the dimensions for openings shown in the service drawings by allowing cement / sand plaster thickness of 15mm in each side of the opening.

Method of Brick Masonry

Method of brick will be described as follows,

1. Construction of brick wall.
2. Construction of stiffener columns, beams & lintels.
3. Providing reinforcement anchors to the stiffener columns from the structural beams, walls & columns.

Construction of brick wall

• Marking for brick walls & openings will be done on structural floor slab according to approved shop drawings.
• The floor slab where brick walls to be built will be cleaned.
• Reinforcement for stiffener columns will be anchored using HIT-HY 150 chemical at the place where Reinforcement starters would not be provided.
• Brick walls with 225mm thick will be built to around 1.5m height in first stage and balance will be completed after curing the wall.
• Brick walls with 112.5mm will be built to around 1.0m height in each curing.

Construction stiffener columns, beams & lintels

· Stiffener columns will be cast after completing each part of brick walls (~1.5m height)

· Lintel beams & stiffener beams will be cast as per the approved drawing at the required level.

· If the Reinforcement starters would not be provided at the location of stiffener beams & columns from the structural elements, chemical anchor HIT- HY150 will be used for anchoring Reinforcement to the structural elements.

· If the Reinforcement starters would not be provided at the location of lintels from the structural elements, chemical anchor HIT - RE 500 will be used for anchoring reinforcement to the structural elements.

Providing reinforcement anchors to the stiffener columns from the structural beams, walls & columns

· These Reinforcement anchors would be provided while concreting the structural elements and construction detailing for anchors will be carried out as per the attached sketches.

· If the anchors have not been provided as per the approved shop drawing / required dimensions chemical anchors HIT- HY150 will be used for anchoring the missing Reinforcement. (Refer attached sketch No 02 for detail of chemical anchoring)

· Anchors provided for all the stiffeners columns and the perimeter brick walls at the top

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of wall will be clipped with 22mm diameter PVC pipe clip & 16mm diameter PVC pipe respectively & filled with grease.

· 12mm thick polystyrene sheet layer will be place at the top of internal brick walls just at the soffit of structural elements (beam / slab)

· 12mm thick polystyrene sheet layer will be placed at the top of perimeter brick walls just at the soffit of perimeter beam. This gap at the external face and the internal face will be filled with waterproofing sealant. Literature of waterproofing material will be provided.

Quality Assurance and Quality Control System

• Following checks & inspections will be carried out.
• Locations of brick walls & openings in brick walls will be marked on floor by referring the off lines of main grids.
• Verticality & the alignment of brick walls will be checked by using mason’s plumb.
• Cement/ sand mortar will be mixed manually or mechanical mixer & volume of cement & sand will be measured using gauge boxes. Mix ratio of cement & sand is 1:5 (by volume)
• Inspection with the engineer’s representative will be carried out while work is in progress.
• Sample of Bricks will be submitted for the approval of engineer