00680.00 698 Section 00680 - Stockpiled Aggregates
Description
00680.00Scope - This Work consists of furnishing crushed Rock or other Aggregates in stockpiles
at the places and in the manner specified.
Materials
00680.10Sources of Material - Obtain the material to be furnished in stockpiles from sources
according to 00160.60.
00680.11Aggregates - Furnish Aggregates meeting the following requirements:
specified and conforming to the requirements of 00641.10.
specified: 1" - 1/2" 3/4" - 1/2" 1/2" - 1/4" 3/8" - 1/4" 3/8" - No. 4 3/8" - No. 8 Aggregates in stockpiles shall conform to the following requirements:
grading for the designated size Aggregate according to the following:
Designated Sizes 1" - 1/2" 3/4" - 1/2" 1/2" - 1/4" 3/8" - 1/4" 3/8" - No. 4 3/8" - No. 8 Sieve Size Percent Passing (by weight) 1" 100 100 3/4" 95 - 100 90 - 100 100 1/2" 60 - 90 0 - 10 85 - 100 100 100 3/8" − − − 85 - 100 80 - 100 100 1/4" 15 - 30 0 - 2 0 - 15 0 - 15 10 - 40 − No. 4 − − − − − 45 - 65 No. 8 0 - 7 − 0 - 4 − 0 - 6 0 - 10 No. 30 − − − 0 -2 0 - 2 − No. 200 0 - 2 0 - 2 0 - 2 0 - 2 0 - 2 0 - 2 No. 200 * 0 - 1 0 - 1 0 - 1 0 - 1 0 - 1 0 - 1 * In gravels
00680.15Aggregate Production Quality Control - Provide sampling, testing, and quality control
during production of Aggregate according to Section 00165. Performs ampling and testing according to Section 00641, or Section 00715, as applicable. Aggregates will be evaluated for compliance according to the following:
00680.40 699 (a) Gradation - Analyze gradation statistically according to Section 00165. A stockpile contains specification Aggregate when the Pay Factor (PF) for each sieve size calculated according to 00165.40 is equal to or greater than 1.00. Each required sample represents a sublot.
When the results from Table 00165-2 yield a Pay Factor of less than 1.00 for any sieve size, the material is non-specification. The Engineer will reject any stockpile of Aggregate containing non-specification material unless the non -specification material is removed from the stockpile. Do not add additional material to such a stockpile until enough non-specification material is removed so that the PF for each sieve size is equal to or greater than 1.00.
failing material from the stockpile whenever a quality co ntrol test result, other than sieve analysis, does not meet Specifications. Document operational adjustments made and notify the Engineer prior to resuming production.
00680.16Acceptance of Aggregate - The Contractor's quality control tests will be us ed for
acceptance of Aggregates if verified by the Q uality Assurance Program. The Agency will perform Aggregate production quality assurance according to the following:
will be performed according to Section 00165.
projects administered by Agencies other than ODOT will be at the discretion of the Agency or as specified. Equipment
00680.20Rock Crusher - Comply with the following:
according to 00160.70.
an impact crusher of sufficient size and capable of producing Aggregate in cubical form, free from sharp points or slivers.
00680.21Conveyor - Provide conveyors capable of reaching a minimum distance of 70 feet, to
stockpile sanding materials in sand sheds without segregation during stockpiling.
00680.22Hauling Equipment - Provide vehicles for hauling crushed Aggregates capable of
discharging the materials without segregation.
Labor
00680.30Quality Control Personnel - Provide a technician having a CAgT technical certification
Construction
00680.40Preparation of Sites :
and source development plan in the Special Provisions.
00680.41 700 00680.41 Piling of Materials - Place each separate designated size of material to be stockpiled at a given site in a separate stockpile. Locate each stockpile to occupy as small an area as practicable, and separate each pile so that working room will be adequate for removing the materials later. Height of the piles shall not be less than 8 feet, nor side Slopes flatter than 1V:1.5H, unless directed. Except in sand sheds, stockpile sanding materials to a height of 15 feet, or as directed.
Place the material in stockpiles with a minimum of segregation. Unless otherwise allowed, place the material in stockpiles in horizontal layers not more than 4 feet in thickness.
00680.42Places of Delivery - Places of delivery and the tentative plans of distribution of the
materials will be shown or specified.
00680.43Agency's Right to Materials - If the Engineer fi nds it necessary, the Agency may take
materials from stockpiles before the stockpiles have been completed and measured, or may take a part of the materials intended for placement in stockpiles, in trucks or other vehicles at the plant.
Finishing and Cleaning Up
00680.70Cleaning Up Source Sites - Clean up the source sites according to the terms of the source
permit and source development plan in the Special Provisions.
Measurement
00680.80Measurement - The quantities of each designated size of Material will be measured
according to the following:
• Weight Basis - When measurement is by weight, the quantities of each designated size of Material will be measured on the weight basis, in the hauling vehicle.
• Volume Basis - When measurement is by volume, the quantities of each designated size of Material will be measured on the volume basis, by Cross Section measurement or a digital terrain model of the completed neat stockpiles, with no allowance for settlement or shrinkage.
00680.81Materials Taken from Stockpiles Prior to Completion - Materials taken by the Agency
according to 00680.43 will be measured in the Agency's hauling vehicles. If measurement is on the volume basis, the vehicle measurement will be converted to equivalent stockpile measurement at the ratio of 1.00 cubic yard, vehicle measurement to 0.95 cubic yard, stockpile measurement. If measurement is on the weight basis, the weight will be determined in the same manner and by the same means as used in determining the weight of Materials stockpiled and paid for under the Contract.
Payment
00680.90Payment - The accepted quantities of each size of specified Material will be paid for at the
Contract unit price, per Ton or cubic yard, for the item "____ Material In Stockpile".
The respective sizes of stockpiled Aggregates will be inserted in the blank.
Payment will be payment in full for furnishing and placing all Materials in stockpiles and sand sheds, and for furnishing all Equipment , labor, and Incidentals necessary to complete the Work as specified.
No separate or additional payment will be made for source development and clean-up, preparation of stockpile sites, hauli ng of stockpile materials, or placing materials in sand sheds.