Red Seal Bricklayer Practice Exam

Reinforcing a brick wall against seismic activity is crucial for maintaining structural integrity during earthquakes. The correct method involves the incorporation of vertical and horizontal reinforcements as specified by engineering guidelines. This approach ensures that the wall can withstand lateral forces, which are common during seismic events.

The vertical reinforcements typically consist of steel bars or rebar placed within the masonry, which help absorb and dissipate the energy generated by seismic movements. Horizontal reinforcements, often placed at specific intervals within the wall, work together with vertical supports to create a more rigid structure. This grid-like reinforcement system improves the overall strength and stability of the wall, allowing it to flex and move during an earthquake without collapsing.

On the other hand, using decorative bricks, applying thick cement coats, or adding waterproof membranes do not address the structural needs of a wall under seismic stress. Decorative elements may improve aesthetics but do not enhance stability. Thick cement could potentially add weight without providing necessary tensile strength, while waterproof membranes serve a different purpose – protecting against moisture – but do not contribute to the wall's capacity to resist seismic forces. Therefore, the inclusion of proper reinforcements according to engineering specifications is essential for effective seismic resistance in brick structures.