SECTION 2103 MASONRY CONSTRUCTION MATERIALS

2103.8 Mortar. Mortar for use in masonry construction shall conform to ASTM C 270 and shall conform to the proportion specifications of Table 2103.8(1) or the property specifications of Table 2103.8(2). Type S or N mortar shall be used for glass unit masonry. The amount of water used in mortar for glass unit masonry shall be adjusted to account for the lack of absorption. Retempering of mortar for glass unit masonry shall not be permitted after initial set. Unused mortar shall be discarded within 21/2 hours after initial mixing, except that unused mortar for glass unit masonry shall be discarded within 11/2 hours after initial mixing.

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