Div. B › Part 9 › 9.20 › 9.20.2 — Masonry Units

9.20.2.1 — Masonry Unit Standards

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(1) Masonry units shall comply with,

(a) ASTM C73, “Calcium Silicate Brick (Sand-Lime Brick)”,

(b) ASTM C126, “Ceramic Glazed Structural Clay Facing Tile, Facing Brick, and Solid Masonry Units”,

(d) CAN/CSA-A82 “Fire Masonry Brick Made from Clay or Shale”,

(e) CSA A165.1, “Concrete Block Masonry Units”,

(f) CSA A165.2, “Concrete Brick Masonry Units”, or

(g) CSA A165.3, “Prefaced Concrete Masonry Units”.

(h)

Revoked: O. Reg. 88/19, s. 245.

(i )

Revoked: O. Reg. 88/19, s. 245.

(j)

Revoked: O. Reg. 88/19, s. 245.

(k)

Revoked: O. Reg. 88/19, s. 245.

OBC Definitions

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solid masonry

means a single-wythe or multi-wythe construction made of solid masonry units or semi-solid, cored or hollow masonry units, the cells of which may or may not be filled with mortar or grout. In multi-wythe masonry construction, the space between the wythes consists of a mortar-filled collar joint or grout-filled space and the wythes may or may not be constructed of the same masonry materials.

solid masonry unit

means a concrete block or brick unit, a clay brick unit or a calcium silicate brick unit, the net solid area of which is at least 75% of its gross area.

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