Heritage Environmental Services LLC

At the Indianapolis Motor Speedway, asphalt mix was first placed on the main oval original brick surface in 1936 to fill in the rougher sections.All four turns were completely paved with asphalt in 1937.In 1938, the entire track was paved with asphalt except for the middle portion of the front straightaway, where the original brick was still left exposed.The entire 2-1/2 mi track was completely paved in 1976, and then again in 1988 and 1995.In 1999 the new Formula One track was built for the inaugural Grand Prix.The most recent repaving project on the main oval occurred in 2004; utilizing mixes that were designed by Heritage Research Group, produced by Milestone Contractors and placed by Grady Brothers using a special paving machine.Formulation to application challenges for any race track are discussed including precision rolling to achieve the necessary compaction, laying the mat as close to the retaining wall as possible, using a consistent feed of material and a steady pace to limit the number of transverse joints in the mat, with photographs telling much of the story.

A review discusses the changes in processing and slag management to obtain a consistent product for highway application.Steel slag is best used in pavement surfaces where the benefits of its micro and macrotextures can be used to reduce the severity of accidents and save lives.When placed into surface mixtures,.Steel slag has added benefit of higher strength to prevent rutting and extend pavement life.

Some may say this is the century of awareness in sustainability.Chem. plays a critical role towards solving sustainability issues.This is especially true for programs which seek to eliminate certain types of industrial wastes by using them as raw materials for new products.Development and implementation of such programs generally require an overlap of chem. related disciplines including research, product assessment, facility operation, and quality control.A few examples of successful programs are given below.Copper is one of the most critical of the essential trace minerals for animal feed.A process was developed for production of an improved animal feed ingredient (basic copper chloride) from spent etching solutions used in manufacturing electronic printed wiring boards.After the recovery of the copper, the etchant is reformulated and sent back to the manufacturer for reuse, and an ammonia based fertilizer is produced.With this innovative chem. once a hazardous waste treated by waste water treatment plants and land filled, the spent etchant found new use as sustainable products in different industries.A metallurgical process was developed for air pollution control dusts and other byproducts from the steel Industry.PIZO, an abbreviation for Pig Iron and Zinc Oxide, is the only com. available, 100% reuse, one-step technol. for the continuous manufacturing of products: crude zinc oxide, pig iron, and a high quality slag.The dusts and byproducts that are 100% reused by PIZO have historically been processed for land disposal or partially recycled.Within the Heritage Research Group there are several other research projects that are currently being worked on that aim to innovate new technologies that will provide sustainable solutions to various disciplines in the industry.