A82.4-M1978

Scope A82.4 1.1 This Standard covers structural clay load-bearing wall tile made from surface clay, shale, fire clay, or mixtures thereof. Two grades of tile are covered, as follows: Grade LB X - Suitable for general use in masonry construction and adapted for use in masonry exposed to weathering, provided they are burned to the normal maturity of the clay. They may also be considered suitable for the direct application of stucco; Grade LB - Suitable for general use in masonry where not exposed to frost action, or for use in exposed masonry where protected with a facing of 75 mm or more of stone, brick, terra cotta, or other masonry. Note: If tile having a particular colour, texture, or finish is desired, these features should be specified separately by the purchaser (see Appendix A, Note 1).