Difficulty: Easy
Correct Answer: all the above
Explanation:
Introduction / Context:
Bonding patterns influence the strength, stability, and appearance of brick masonry. Each bond has a typical use-case. Knowing when to use English, Flemish, double-Flemish, or stretcher bond helps balance structural performance and aesthetics while controlling cost and labour effort.
Given Data / Assumptions:
Concept / Approach:
English bond (alternate header and stretcher courses) offers excellent strength and through-bonding for heavy loads. Double-Flemish bond provides a Flemish appearance (alternating headers and stretchers in each course) on both faces, suitable where the wall is exposed on both sides and appearance is important; it is generally a bit less strong than English bond. For single-brick residential walls, double-Flemish is often adopted to balance looks and acceptable strength. Stretcher bond (all stretchers) is standard for half-brick thick partitions and veneers where through-bonding is not possible or needed, often tied back to a backing wall or frame.
Step-by-Step Solution:
Verification / Alternative check:
Construction manuals consistently describe English bond as strongest and stretcher bond for half-brick walls; double-Flemish is specified where both faces are visible.
Why Other Options Are Wrong:
Common Pitfalls:
Confusing Flemish and English bonds; using stretcher bond for thick loadbearing walls without adequate ties.
Final Answer:
all the above
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