5.2. DIFFERENT TYPES OF BONDS IN BRICK MASONRY

Exercise 5.6 Draw two consecutive courses for corner joints of the following walls in English bond. (a) One brick thick wall i.e., 200 x 200 (b) One and half thick wall i.e., 300 x 300.

In this exercise, students learn how to draw corner joints using the English bond method for different wall thicknesses. The English bond is characterized by alternating courses of stretchers (bricks laid with their long sides parallel to the wall) and headers (bricks laid with their short sides facing out).

• For a one-brick thick wall, the course consists wholly of headers and stretchers that alternate in the next course, ensuring strong bonding at the corners.
• For a one-and-a-half brick thick wall, the procedure is similar but requires a thicker foundation and different brick arrangement.

Consider a Lego wall where each brick represents a stretcher or header. Just like Legos stabilize each other at the joints, in brick masonry, the English bond helps distribute weight evenly, making the wall strong enough to withstand various forces.

Exercise 5.7 Draw plan of two consecutive courses for corner joints of the following walls in Double Flemish bond. (a) One brick thick wall i.e., 200 x 200 (b) One and half thick wall i.e., 300 x 300.

In this exercise, students are tasked to draw two courses of corner joints in Double Flemish bond, which consists of alternating stretchers and headers in each course. The headers are positioned alternately with the stretchers, providing a visually appealing pattern while ensuring bond strength.

• In the one-brick thick wall, the bond pattern gives robust support to the structure.
• The one-and-a-half brick thick wall presents a more complex arrangement due to the extra thickness but follows the same bonding rules.

Imagine building a brick wall like creating patterns with colored beads on a string. Each bead type represents either a header or a stretcher. Just like in crafting, pattern and order matter for stability and appearance in masonry.

Exercise 5.8 Draw plan and elevation of two alternate courses of a one brick thick wall in Header bond.

This exercise involves drawing a wall using Header bond, which primarily involves laying bricks with their ends facing outward. The bond offers excellent tensile strength and is often used in situations requiring high stability. In a one-brick thick wall, the alternating courses consist of headers, providing a distinctive appearance and strong structural integrity.

• This construction style allows for fewer mortar joints, enhancing the bond's strength.

Think of a stack of books laying flat on a table. The spines (headers) support the stacked books, ensuring they don’t topple over. Similarly, in Header bond masonry, the end bricks act as the spine providing strength and stability.

Exercise 5.9 Draw plan and elevation two alternate courses and elevation of a half brick thick wall in Stretcher bond.

In this exercise, students are instructed to create a Stretcher bond, which involves laying bricks with their long sides exposed, effectively spanning the wall's length. This bond is commonly used for half-brick thick walls because it maximizes the wall's strength against lateral pressure while maintaining a linear appearance. The pattern placement ensures that adjacent bricks are staggered for enhanced support.

Imagine laying out dominoes in a long line where each domino supports the next. The way stretchers are arranged allows for an efficient transfer of weight throughout the wall, much like how each domino relies on its neighbor for stability.

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