951f62fb_rolina_Green_Building_Database__Technology
[0] 3 [Description] All material generated on the site from land-clearing activity and excavation was reused on site. The specifications stipulated that during construction, land that required clearing would first be logged for valuable timber, and then the remaining debris would be shredded in a tub grinder to create mulch for future use on the site. (This is in contrast to the prevailing practices in this region, where it is typical for landscape scrap to be piled high and burned.) Mulch stockpiled on site was aged for use in finish landscaping. Some of the mulch was mixed directly into the topsoil, where the decomposed material aerates and amends the soil for more productive plant growth. Excavated topsoil was stockpiled for reuse and excavated rock was crushed for use as structural fill. Two types of portable machines were used at the site for rock crushing. The first was the actual crusher, which takes rocks up to 24” diameter and discharges material smaller than 3”. The second machine was the sieve and screen, which takes the crusher product and separates the unwanted gradations and fractions to produce specific aggregates. Although the excavated rock and weathered rock may not be durable enough to use as road aggregate, the contractor used the product in his structural fills and backfill throughout the site. The aggregate material produced on site was used for temporary haul roads and access during inclement weather. For more details about this technology/strategy and project, including photos, a video, detailed documents, and specifications, see http://www.epa.gov/rtp/new-bldg/environmental/environmental.htm [Technology] 
Recycling of site debris
North Carolina Green Building Database
Technology