This standard specifies the dimensions, physical requirements, and testing criteria for burnt clay tiles used in lining irrigation canals and drainage systems to prevent water seepage.
Burnt clay tiles for use in lining irrigation and drainage works-Specification
Quick Reference Values
Maximum water absorption15 percent by mass
Efflorescence limitSlight
Minimum flexural strength1.5 N/mm²
Standard length250 mm
Standard width125 mm
Key Formulas
Modulus of Rupture = 3PL / 2bd² (where P=load, L=span, b=width, d=thickness)
Practical Notes
Tiles must be thoroughly soaked in water before laying to prevent them from absorbing moisture from the mortar bed.
Efflorescence tests are critical; high salt content in tiles can lead to rapid degradation of the channel lining under continuous water flow.
Ensure proper curing of the cement mortar joints to maintain overall channel impermeability.