608Non-Vegetative Surfaces

608.01 Description

This Section describes the requirements for constructing non -vegetative surfaces of HMA , color-coated HMA, porous HMA, broken stone, polyester matting, and post-emergent weed control.

608.02 Materials

608.02.01 Materials

Provide materials as specified: Broken Stone, Coarse Aggregate (No. 3)……………………… ................. …………………………………..901.03 Coarse Aggregate (No. 57) ................................ ................................ ................................ ........................... 901.03 Emulsified Asphalt ................................ ................................ ................................ ................................ ... 902.01.02 Hot Mix Asphalt (9.5M64)…………………………………………………… ... ……………………………...902.02 Asphalt-Stabilized Drainage Course……………………………… .................... ………………..…………….902.06 Coating for Non-Vegetative Surface……………………………… ............... ……………………………...912.02.04 Herbicides……………………………………………………… .................. ………………………………917.09.03 Polyester Matting………………………….………………… .................... ……………………………….…..919.15 Provide Non-Vegetative Surface, Porous HMA conforming to the requirements of Asphalt-Stabilized Drainage Course.

608.02.02 Equipment

Provide equipment as specified: HMA Compactor ................................ ................................ ................................ ................................ ........ 1003.05 Vibratory Drum Compactor ................................ ................................ ................................ ......................... 1003.06 HMA Plant................................ ................................ ................................ ................................ .................. 1009.01 HMA Trucks ................................ ................................ ................................ ................................ ............... 1009.02

608.03 Construction

608.03.01 Non-Vegetative Surface, Hot Mix Asphalt

Excavate as specified in 202.03.03. Shape and compact the underlying material to produce a firm, even surface. Obtain RE approval before finishing excavation. If the RE determines that the bottom of the excavation is unstable, undercut, backfill, and compact as directed by the RE. Construct the non-vegetative surface, HMA before installing guide rail. Provide a leave out at each post location. Fill the leave outs by one of the following two methods:

608.03.02 Color-Coated Non-Vegetative Surface, Hot Mix Asphalt

Construct color-coated non-vegetative surfaces as specified in 608.03.01. Uniformly apply the final color at the rate of 0.3 to 0.5 gallons per square yard by spraying, brushing, or squeegeeing over the HMA surface course. Ensure that the surface is clean and dry at the time of application. Reapply the coating to any missed spots or areas to obtain a uniform coating. Avoid spilling the color coating on adjacent surfaces. If the color coating spills, immediately clean it with water before the coating dries. If the coating dries, repair as directed by the RE. The RE will not allow traffic on the color-coated surface until it is dry. Provide weed control as specific in 608.03.06.

608.03.03 Non-Vegetative Surface, Broken Stone

Ensure that areas to receive non -vegetative surface, Broken Stone, are free from vegetation. Vegetation removal may require manual removal, herbicide treatment as specified in 608.03.06 or both. Apply a pre-emergent herbicide to the area before placement of broken stone. Spread broken stone, aggregate size No. 3, in a uniform layer, to prescribed thickness. Provide weed control as specific in 608.03.06.

608.03.04 Non-Vegetative Surface, Porous Hot Mix Asphalt

Ensure that areas to receive non -vegetative surface, porous HMA are free from vegetation. Vegetation removal may require manual removal, herbicide treatment as specified in 608.03.06 or both. Excavate as specified in 202.03.03. Shape and compact the underlying material to produce a firm, even surface. Obtain RE approval before finishing excavation. If the RE determines that the bottom of the excavation is unstable, undercut, backfill, and compact as directed by the RE. Construct the non-vegetative surface, porous HMA before installing guide rail. Obtain RE approval for alternate methods of construction. Construct porous HMA surface course to prescribed thickness according to the requirements of Section 303 except for the application of prime coat. Repair non-vegetative surface damaged by guide rail installation with porous HMA. Use hand tampers around posts and other obstacles where mechanical compactors are not accessible. Provide weed control as specific in 608.03.06.

608.03.05 Non-Vegetative Surface, Polyester Matting

Install polyester matting according to the manufacturer’s requirements by manufacturer certified workers. Ten days before installation, submit to the RE a list of manufacturer certified workers and one copy of the “engineering package” including demonstration CDs and samples of product components; such as foot prints, finished seams, etc. The manufacturer may elect to train the workers and Department inspectors on a test section on the worksite. Ensure that the surface areas to receive the matting are smooth, firm, stable and free of rocks, clods, foliage, roots or other material which might prevent the matting from lying in direct contact with the ground surface, free of wrinkles or bulges. Existing non-vegetative surface or HMA that is in the same location as proposed polyester matting may be left in place as long as its surface area is properly prepared as previously stated. Mow grass as low as possible prior to installation of matting. Install the matting immediately following installation of guide rail posts and prior to installation of the guide rail hardware by lifting the matting above the posts and allowing it to drop to the ground with the posts passing through prefabricated openings. Stake the matting along its edges in accordance with the manufacturer’s recommendations. Seal matting openings with a separate prefabricated piece of matting that will provide a snug fit around the post and completely cover the opening. Ensure that seams are sealed. Ensure that the matting surface is vegetation-free from installation until final acceptance. Vegetation removal may require herbicide treatment, mechanical removal, or both, as specified in 608.03.06. Provide weed control as specific in 608.03.06.