903 — MASONRY PRODUCTS 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 900 MATERIALS SECTION 903 — MASONRY PRODUCTS
903.01 Sewer Brick
M 91, Grade SM, with a standard size of 2-1/4 in. x 3-3/4 in. x 8 in.
903.02 Manhole Brick
M 91, Grade MS.
903.03 Building Brick
M 114, Grade SW.
903.04 Hollow Concrete Masonry Block
C90, Grade N, Type I, normal weight.
903.05 Solid Concrete Masonry Block
C139.
903.06 Mortar for Masonry
Composed in accordance with one of the following:
a.One part portland or blended cement and three parts mortar sand by dry loose volume and hydrated lime not to exceed 20 percent of the cement by weight.
b.One part masonry cement and three parts mortar sand by dry loose volume.
c.Prepared bag mixes consisting of masonry cement and mortar sand. The prepared mixes shall produce a minimum compressive strength of 500 psi in seven days when tested using the applicable procedures specified in C91. 903 — MASONRY PRODUCTS 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS Materials for mortar shall meet the following: Mortar Sand 901.01 Portland Cement 902.03 Blended Hydraulic Cement 902.04 Masonry Cement 902.05 Water 921.01 Lime 921.03
Referenced in this section
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Source: Standard Specifications for Construction and Materials, 2026 Edition. Pages 965–966 of 1,138. View official source ↗