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3. Citizen Group Copy of 4 6-29-15 MNDOT Bound Aggregate Surfacing Guide Specifications The following modifications and clarifications to the 2014 edition of the MNDOT Standard Specifications for Construction and the 2014 Edition of the MNDOT Materials Lab Supplemental Specifications for Construction are suggested for procurement of Bound Aggregate. This information could be placed within the specification document or on the plans. Pay Item Changes or Clarifications Specification Pay Item Section TitleItemUnitQuantity Section NumberNumber Aggregate Surfacing Class 1 with Aggregate 21182118.501Five to Eight Percent Clay Binder ton800 Surfacing Soil Calcium Chloride Type S Grade 3 at 2131.501ton8 Application of 94% Concentration 2131 Calcium Chloride Calcium Chloride Solution Type L at 2131.502gallon1500 26% Concentration Construction Specification Changes and Clarifications Specification Change or Clarification Section Title Section Number Add the following to Section 3146.1 SCOPE: Between five and eight percent binder soil must be added to Section 2118 Aggregate Surfacing on a by aggregate weight basis. 3146Binder Soil Add the following to Section 3146.2 REQUIREMENTS (3): Minimum Plasticity Index of 10 as determined in accordance with AASHTO T89 and 90 Delete the first sentence of Section 2131.5 BASIS OF PAYMENT, and add the following: No payment will be made for water used in Application of 2131 accordance with 2130 "Application of Water for Dust Control." Calcium Chloride Payment will be made for either liquid or dry calcium chloride.