1 A new asphalt heated driveway costs $3,200-$33,500 or more. 2  This cost includes the radiant heating system, materials for the new asphalt driveway, and installation of both. 3  Removal of the old driveway is typically not included in this price. Demolishing a concrete driveway costs $50-$500 for DIY, $500-$900 for day labor assistance, and $1,000-$2,500 for work by a licensed contractor. 2  See How Much Does Concrete Removal Cost for more information and cost breakdowns. 3  All driveway heating systems add to winter utility bills.
Hollow Stem Auger - HSA boring; with 258/168 mm and 200/90 mm outer/inner diameter; Casing and sampling in one technology, this is up to date geotechnical and environmental sampling method. The HSA works as a casing, suitable for disturb or undisturbed sampling, and water sampling even in noncohesive soil conditions.
Examples of studies that have used pur-posive sampling are given, including the type of popula-tion sampled, data gathering techniques, analyses done and key results. Concerns regarding the validity of this nonrandom technique and the reliability of an informant are also tackled in this paper.