704.01 Clay or Shale Brick. Brick shall conform to the requirements of one of the following
specifications: Sewer and Manhole Brick-AASHTO M 91. Building Brick-AASHTO M 114.
704.02 Concrete Brick. Concrete brick shall conform to the requirements of ASTM C55.
704.03 Concrete Masonry Blocks. Concrete masonry blocks may be rectangular or segmented
and, when specified, shall have ends shaped to provide interlock at vertical joints. The blocks shall conform to the requirements of ASTM C139, or, for hollow blocks, to ASTM C90. Dimensions and tolerances shall conform to the above applicable requirements or those specified on the plans.
704.04 Masonry Mortar. Masonry mortar shall be Type S conforming to ASTM C270.
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Source: 2025 Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 869–870 of 967. View official source ↗