DESIGN OF BRICK MASONRY
2) Calcium Silicate (Cement, FAL-G)
(Comp. strength à 3.5 to 40 N/mm2)
1. External and internal bearing walls
2. Load bearing piers and columns
3. Paritition walls
4. Brick masonry foundations
5. Floorings and Pavings
Advantages of brick masonry:
Attractive appearance, economical light weight, durable, strength, fire resistance, sound insulation, low thermal conductivity, minimum maintenance.
Classification of bricks: [Based on shapes]
1. Solid bricks -Perforations or holes not greater than 25% of volume
2. Perforated bricks -Perforation is greater than 25% of volume. Advantages:of perforated bricks are high thermal insulation and light weight. Water absorption should not be greater than 15% after 24 hours of insertion and compressive strength not less than 7N/mm2.
3. Hollow blocks -Holes greater than 20% and sizes of holes greater than 20mm.
4. Cellular bricks -Holes greater than 20% and closed at one end
5. Ornamental bricks -Bricks used in corbels, cornices, etc.
Size of bricks: [As per IS1077]
Standard size -19 x 9 x 9 cm
Modular brick -20 x 10 x 10 cm
The average compressive strength of brick unit as per IS3495 (Part I) -1976 is, 3.5 - 40N/mm2