3128.1SCOPE
Provide fine Aggregate for use in masonry mortar.
3128.2REQUIREMENTS
Provide Aggregate for use in masonry mortar meeting the requirements of ASTM C144, Standard Specification for Aggregate for Masonry Mortar. The gradation requirements of ASTM C144 are shown in Table 3128.2-1. Table 3128.2-1 Mortar Aggregate Gradation Limits Sieve Size Percent Passing No. 4 100 No. 8 95 – 100 No. 16 70 – 100 No. 30 40 – 75 No. 50 10 – 35 No. 100 2 – 15 No. 200 0 – 5
The Engineer may allow Aggregate meeting the gradation requirements of 3126.2C, “Gradation Requirements,” for joints thicker than 1/2 inch.
3128.3SAMPLING AND TESTING — BLANK
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Source: Minnesota Standard Specifications for Construction, 2025 Edition. Pages 850–0 of 1,081. View official source ↗