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SPECIAL PROVISIONS - SP20I6 BOOK <br />Last Revision by CO Special Provisions: 2/08/17 <br />Created August 20, 2015 <br />Page 61 <br />SP 0202-101 <br />3%1n [9.5 mm] 10-30 20-55 40-70 90-100 50-100 100 <br />No.4 [4.75 mm] 0 — 5 0 — 10 0 — 15 20 — 55 0 — 25 55 — 95 <br />No.8 [2.36 mm] 5 — 30 <br />No.16 [1.18 mm] 0 — 10 <br />No.50 [300 µm] - 0 - 5 0-5 <br />*ASTM #67 and ASTM #7 Gradations are MnDOT Modified. <br />S-50 (3138) AGGREGATE FOR SURFACE AND BASES COURSES <br />REVISED 12/02/16 <br />MnDOT 3138 is modified as follows: <br />S-50.1 Add the following to MnDOT 3138.2D Surfacing Aggregates: <br />(5) <br />Provide aggregate with a minimum clay content of 3% and a Plasticity Index (PI) of 5 — <br />12. The requirements for PI and minimum clay content are met, if the bitumen content is <br />1% or greater, the material is composed of at least 25% recycled materials or is composed <br />of at least 50% crushed quarry aggregate. <br />S-50.2 Replace that portion of MnDOT 3138.2.E which occurs prior to Table 3138-3 with the following: <br />E Gradation Requirements <br />(1) For products containing less than 25 percent recycled materials, conform to Table 3138- <br />3. <br />(2) For products containing 25 percent or more recycled materials and less than 75% <br />recycled concrete, conform to Table 3138-4. Bituminous millings meeting a gradation of <br />100% passing the 1.5" sieve and 95-100% passing the 1" sieve may be used for the 1-2' <br />fillet/rollover outside of a paved shoulder for class 1 and class 2. <br />(3) For products containing 75 percent or more recycled concrete, conform to Table 3138-5. <br />(4) Perform gradation tests prior to bituminous extraction. <br />S-50.3 Add the following to MnDOT 3138.3: <br />G Particle Size Analysis Laboratory Manual Method 1302 <br />H Liquid Limit Determination Laboratory Manual Method 1303 <br />I Plastic Limit Determination Laboratory Manual Method 1304 <br />3. (3151) BITUMINOUS MATERIAL (MSCR) <br />NEW WRITEUP 01/15/16 <br />MnDOT 3151 is modified as follows: <br />S-50.4 Replace MnDOT 3151.2.A with the following: <br />A Asphalt Binder <br />Only use Performance Graded (PG) Asphalt Binder meeting the requirements of AASHTO M 332, <br />Table 3151-1A, and the Combined State Binder Group Method of Acceptance for Asphalt Binder, <br />available on the Asphalt Products page of the Approved/Qualified Products List. <br />