1006.1 Scope. This specification covers aggregate to be used for surfacing.
1006.2 Aggregate for surfacing shall be composed durable particles of rock or reclaimed concrete. When tested
in accordance with AASHTO T 96, the wear shall not exceed 60 percent. The deleterious substances shall not exceed the following values and the sum of percentages of all deleterious substances shall not exceed 12 percent. Deleterious Material Percent by Weight Deleterious Rock and Shale 12.0 Mud Balls 5.0 Other Foreign Material 2.0
1006.3 Aggregate shall be in accordance with the following for the grade specified in the contract:
Grade Type of Material Percent Passing Sieve Sizes 1 in. 3/4 in. 3/8 in. No. 4No. 10No. 200 Aa Gravel 100 80-100 --- 60b 10-35 0-10 Ba Crushed Stone or Reclaimed Concrete 100 --- 65b --- 5-25 ---
C.Chat 100 --- --- 80b 45b --- aType 1 Aggregate for Base in accordance with Sec 1007 may be used, except the maximum plasticity index requirements shall be waived. bIndicates maximum permitted.
1006.4 If the quantity is of a size that makes sampling not practical, this material may be accepted on
certification or visual inspection as allowed in Sec 106.1.4.
1006.4.1 If the quantity is less than 1,000 tons, a commercially available grade of aggregate may be accepted on
certification or visual inspection.
Referenced in this section
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Source: Missouri Standard Specifications for Highway Construction, 2026 (Oct) Edition. Pages 561–561 of 874. View official source ↗