2111 - MULCH TACKING SLURRY 2100-18
2111.1 Description
This specification covers the materials to be used as tacking slurry applied to mulch.
2111.2 Requirements
a. Tacking Material. Provide tacking material that complies with the following: A blend of fibers of recycled slick paper, produced from printers’ slick paper containing wood cellulose, and kaolin clay. Free of synthetic or plastic materials or other foreign material Biodegradable Disperses in water and forms a homogeneous slurry, and remains in suspension when agitated by the hydraulic slurry equipment. When sprayed uniformly over the mulch, forms an absorbent cover allowing percolation of water to the underlying soil. Packaged in moisture resistant bags with the net weight (mass) of the packaged material plainly shown on each bag. Non-water soluble fibers. Complies with the following minimum requirements for wood cellulose mulch: Applied Colo r ........................................................................................................ Green Organic Matter, percent by weight ........................................................................ Min. 80 Tacking Agents, percen t by weight ....................................................................... >4 Moisture Content, perc ent by weight .................................................................... 12 3 Water Holding Capac ity ........................................................................................ >1200 (grams of H2O per 100 grams of fiber pH Range ............................................................................................................... 5.5 3 b. Tacking Agent. Add a Guar Gum based tacking agent to the tacking material in the hydraulic slurry at a rate and manner recommended by the manufacturer. The tacking agent must be biodegradable and comply with the following: Density .................................................................................................................. 30 grams per cc Hazardous Com ponents ......................................................................................... None Percent Volatile ..................................................................................................... 0 at 70F Appearance ............................................................................................................ Cream Colored Powder Water Miscibil ity ................................................................................................... Thickener Odor ....................................................................................................................... M ild c. Water. Use water for mulch tacking slurry that complies with the DIVISION 2400. d. Toxicity. Do not use tacking materials and/or tacking agents that are toxic to vegetation, hazardous to the germination of seed or may be injurious to personnel handling and applying the materials.
2111.3 Test Methods
None Specified.
2111.4 Prequalification
None Required.
2111.5 Basis of Acceptance
Receipt and approval of a Type D certification as specified in DIVISION 2600.
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