This standard provides guidelines for the design, site selection, and construction of brick kilns (such as the Bull's Trench Kiln). It covers structural requirements, including foundations, wall construction, drafting flues, and refractory linings to ensure efficient brick firing operations and structural stability under high thermal stress.
Guide for construction of the brick kiln
Quick Reference Values
outer wall batterTypically 1 in 6 for stability
refractory lining thicknessMinimum 115 mm (half-brick) in combustion zones
foundation clearance above water tableMinimum 1.0 m to prevent heat loss and steam generation
Practical Notes
Proper site drainage is critical; waterlogging around the kiln foundation causes excessive heat loss and uneven structural settlement.
Refractory bricks must be used in the high-heat combustion zones and laid with appropriate fireclay mortar to withstand firing temperatures.
Outer masonry walls must be constructed with a proper batter to accommodate thermal expansion and prevent outward bulging during operation.