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' Page 3 of 7 <br /> , ��, '7, . <br /> shipped in flat sheets that measure 1-meter(40") square. <br /> 2. Da not build on frozen work or wet, satura.ted or muddy subgrade. 5 6 3 9 <br /> E. Protect partially completed paving against damage from other construction traffic when work is <br /> in progess, and untiI grass root system has matvred (about 3 to 4 weeks). Any barricades constructed <br /> must still be accessible by emergency and fire equipment during and after instalIation. <br /> F. Protect adjacent woric from damage during Grasspave2 installation. <br /> PART 2 - PRODUCTS <br /> 2.01 Availability <br /> A. Manufacturer: (Grasspave2, Hydrograw) Invisible Structures, Inc., 1600 Jackson Street., Suite <br /> 31Q, Golden,Colorado 80401. Call from USA and Canada.800-233-I510 toIl &ee, Internatioraal 303- <br /> 233-8383, Fax 303-233-8282. <br /> B. Local Sales Representative: <br /> (Contact Manufacturer) <br />� 2.02 Materials <br /> A. Base Course: Sandy gravel material from local sources commonly used for road base <br /> construction, passing the following sieve analysis. <br /> % Passine Sieve Size <br /> 100 3/4" <br /> 85 3/8" <br /> 60 #4. <br /> 30 #40 <br /> < 3 #200 <br /> l. Sources of the ma.terial can include either "pit run" or "crusher run." Crusher run material <br /> wiil genera.11y require sharp sand to be added to mixture (33%by volume) to ensure long term porosity. <br /> If there is difficuity in finding local sources to meet this sieve analysis, and altemative mixture can be <br /> � created by mixing 2/3 crushed drainage rock (0.75" dia) with 1/3 concrete or river sand. <br /> 2. Selected materials should be aeazly neutral in pH (range from 6.5 to 7.2) to provide adequate <br /> root zone development for turf. <br /> 3. Altemative materials such as crushed shell,limerock, aad/or crushed lava may be considered <br /> for base course use, provided they are mixed with sharp sand(33%), and brought to proper compaction. <br /> 6/25/2007 <br />