Helpful for Construction works Brick Masonry Work, Concrete Work, Plaster Work, Tile Work, Converter all in single excel sheet
Brick is a basic building unit which is in the form of rectangular block in which length to breadth ratio is 2 but height can be different.
Normal size (nominal size) 9”×4½” ×3?
Architectural size (Working size) 8 1 ?16? x 4????” x 2 1 ?16?
The art of laying bricks in mortor in a proper systematic manner gives homogeneous mass which can withstand forces without disintigration, called brick masonary.
A standard metric brick has coordinating dimensions of 225 x 112.5 x 75 mm (9”×4½” ×3“) called nominal size and working dimensions (actual dimensions) of 215 x 102.5 x 65 mm (8.5“ * 4 *2.5) called architectural size.
The coordinating dimensions are a measure of the physical space taken up by a brick together with the mortar required on one bed , one header face and one stretcher face.
The working dimensions are the sizes to which manufacturers will try to make the bricks.
Methods of manufacture for many units and components are such that the final piece is not quite the size expected but it can fall within the defined limits.
This can be due to the things like shrinkage,distortion when drying out, firing etc.The difference between the working and coordinating dimensions of a brick is 10mm (0.5“)and this difference is taken up with the layer of mortar into which the bricks are pressed when laying.
The working dimensions are also known as the nominal size of a brick.
Mortar placed horizontally below or on the top of a brick is called a bed.
Mortar placed vertically between bricks is called a perpend.
Masonry Wall Requirements
The usual functional requirements of a masonry wall include:
- Adequate strength to support imposed loads
- Sufficient water tightness
- Sufficient visual privacy and sound transmission
- Appropriate fire resistance
- Ability to accommodate heating, air conditioning,electrical, and plumbing equipment
- Ability to receive various finish materials Cost.
- Ability to provide openings such as doors and window.
Objectives of Mix Design
- The purpose of concrete mix design is to ensure the most optimum proportions of the constituent materials to fulfill the requirement of the structure being built. Mix design should ensure following objectives.
- To achieve the designed/ desired workability in the plastic stage
- To achieve the desired minimum strength in the hardened stage
- To achieve the desired durability in the given environment conditions
- To produce concrete as economically as possible.