J.3 Project Specifications (2 Pages).pdf

Section 314 - Stockpiled Aggregates

Description

314.01 This work consists of furnishing and placing material in a stockpile for future use by the Government.

Pit or quarry development work consists of clearing, grubbing, stripping topsoil, removing overburden, constructing access roads, conducting restoration activities, and performing other incidental work required for pit or quarry development.

Aggregate grading is designated according to the applicable tables of Section 703.

Material

314.02 Conform to the following Section:

Aggregate 703

Construction Requirements

314.03 General. Conform to the gradation and quality requirements specified in the Section identified for the material.

After a representative quantity of aggregate is produced, submit proposed target values for the appropriate sieve sizes along with a representative sample size as specified in the Section identified for the material.

Set target values within the gradation ranges shown in the applicable table for the required grading.

314.04 Stockpile Site. The Government will acquire the permits and rights to stockpile aggregate from sources identified in the contract if the material is stockpiled for future use.

Prepare a plan of operation. Do not perform work within a Government-provided source until a plan of operation for the development of the source is accepted.

Obtain CO approval before preparing sites. Prepare sites as necessary to accommodate the quantity of material to be stockpiled in a manner that prevents contamination of the stockpiles.

Prepare new sites as follows:

(a) Clear and grub according to Section 201;

(b) Grade, shape, and compact the site to a uniform cross-section that drains; and

(c) Place, compact, and maintain a minimum 6-inch (150-millimeter) layer of crushed aggregate over the stockpile site for stabilization.

Obtain CO approval before stockpiling aggregates.

314.05 Stockpile. Build aggregate stockpiles in layers not to exceed 36 inches (900 millimeters) in thickness. Make the side slopes of each layer no flatter than 1V:1.5H. Spread aggregates with trucks or other approved pneumatic-tire equipment. Complete each layer before depositing aggregates on the next layer. Do not allow aggregates from the layer being built to run down over lower layers. Do not drop aggregates from a bucket or spout in one location to form a cone-shaped pile. Do not push aggregates into piles. Make the stockpiles neat and regular in shape.

Use plank runways or other suitable methods to avoid tracking dirt or other foreign matter onto the stockpiled material when operating trucks on stockpiles.

Space stockpiles far enough apart or install partitions to prevent the mixing of aggregate gradations.

314.06 Acceptance. See the table for sampling, testing, and the acceptance requirements; including the category for quality characteristics specified in the Section identified for the material. The point of sampling and testing for aggregate stockpiled for future use is in the stockpile.

Subbase, base, surface course, chip seal aggregate gradations, and surface course plasticity index and other aggregate quality properties will be evaluated under Subsections 106.02 and 106.04.

Preparation of stockpile sites and construction of stockpiles will be evaluated under Subsections 106.02 and 106.04.

Clearing and grubbing will be evaluated under Section 201.

Measurement

314.07 Measure the Section 314 pay items listed in the bid schedule according to Subsection 109.02.

Payment

314.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 314 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.