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• t ar,�c T vi r <br /> � � <br /> � "� 7, . <br /> (Ccushed shell and limerock alone can set up like concrete without sand added.) � 6 3 9 <br /> B. Hydrogrow Mix: A mixture made &om several comm.ercial products including: 1) cross-linked <br /> polyacrylimide (<0.1%)po(ymer, which is non-to�cic and neutral in pH, and will absorb 150 to 350 times <br /> its weight in water &om most tap sources; 2} ZeoPro zeolite mineral, amended with small amounts of <br /> starter fertilizers, &om Zeoponix, Inc.; 3} Isolite porous ceramic, designed to hold lazge amaunts af <br /> water without physicaI degrada.tion ar change of size of particle, from Sumitomo Group; 4) and <br /> aggromolated Humate, a natura! source of nutrients and micronutrients, &om Tri-C Enterprises. <br /> C. Grasspave2 Grass Paving Units: Lightweight injection-molded plastic units O.Sx0.5x0.02� m <br /> (20"x20"xI" high, 2.7 ft2 each) with hotlow rings rising from a strong open grid allowing maximum <br /> grass root penetratioa and development. The pIastic shall be 1 QO%post-consumer recycied plastic <br /> resins, predominately HDPE, with minimum 3%carbon biack concentrate added for W protection. <br /> Loading capability is equal to 402 kg/cm2 (�700 psi)when filied with sand, over an appropriate <br /> depth of roadbase. Standard color is black. Unit weight= 510 g (18 oz), volume= 8% solid. Units <br /> may atso be shipped in pre-assembled into rolls that vary from 10 square meters (I08 s fl to 125 squa.re <br /> meters (I34� sfl. <br /> D. Sand: Obtain clean sharp sand(washed concrete sand)to fill the 2� mm (one irrch) tugh rings <br /> and spaces between the rings when seeding or using 13 rnm (half inch) thick sod(soil thickness). <br /> E. Grass: Use species resistant to weaz by traffic generally a Blue/Rye/Fescue mix used for athletic <br /> fiefds in northern climates,and Zoysia, Fescue, or Bermuda types in southem ciimates. <br /> (Check with local sod and seed suppliers for preferred mixtures.) <br /> (Dedicated firelanes can use same grass species used on surrounding turf.) <br /> - (Pazking applications require greatest wear-resistant species possible, generally available only by <br /> seed or sprigging.) <br /> (Choose one of the following pazagraphs to suit projectrequirements.) <br /> I. Sod: Use 13 mm(0.5") thick(soil thickness) rolled sod from a reputable local grower. <br /> Species shouid be weaz resistant, free from disease, a:nd in escellent condition. Sod shall be grown in <br /> sand or sandy loam soils only. Sod grown in soils of clay, silt, or high organic materials such as peat, <br /> will not be accepted. <br /> 2. Seed: Use seed materials, of the preferred species for locai environmental and projected <br /> tr�c conditions, from certified sources. Seed shall be provided in containers ciearly labeled to show <br /> seed name, lot number,net weight, %weed seed content,and guaranteed% of purity and germination. <br /> Pure Live Seed types and arnount shalI be as shown on plans. <br /> F. Mulch: (Need�d only for seeding.) Shall be of wood or paper cellulose types of commerciai <br /> mulch materials often used in conjunction with hydroseeding operations. Mulches of straw, pine <br /> needles, etc. will not be accepta.ble because of their low moisture holding capacity. <br /> G. Fertilizer: A commercial "starter" fertilizer, with Guaranteed AnaIysis of 17-23-6, or as <br /> � recommended by Iocal grass supplier,for rapid germination and root development. <br /> 6/25/2007 <br />