Have you ever wondered what happens to the debris when structures or roadways are demolished? In the past, stockpiles of hardened, non-biodegradable concrete would be hauled off to local landfills (usually at high costs due to longer haul truck cycles and landfill tipping/gate fees!) where it would sit, taking up precious landfill space. In recent years, however, construction companies have learned that recycling old construction and demolition (C&D) materials such as concrete and asphalt offers a range of environmental and economic benefits.
DID YOU KNOW?
In the United States alone, 140 million tons of concrete is recycled each year, freeing up our landfills for biodegradable materials.
Concrete Recycling Benefits
These benefits include:
- Reduces pollution/carbon footprint
- Saves landfill space
- Project cost savings
- Reduces the need for virgin rock/gravel mining
- Cheaper source of aggregates than newly mined/virgin aggregates
Markets for Recycled Concrete
Recycled Concrete Aggregated (RCA), according to the Construction and Demolition Recycling Association (CDRA), is a valuable material that to date has been used for a number of different purposes including:
Aggregate Base Course/Road Base: This is used as the foundation for roadway pavements and is the underlying layer that forms a structural foundation for paving. This is the major U.S. market for recycled concrete. The U.S. Department of Transportation has approved this material for use on highway infrastructures.
DID YOU KNOW?
Recycled Concrete Base Material is approximately 12% lighter by weight than virgin aggregate, providing project savings in its transport / trucking cost.
~ Buesing Corp Average Historical Lab Results
Ready Mix Concrete: This consists of a mix of cement, sand and water. This market is in its infancy stage with few recyclers attempting this type of re-use strategy, although confidence is growing through programs, such as Built Green. [Source: CDRA] Similarly, recycled concrete can be used in new asphalt as a substitute for virgin aggregate.
Soil Stabilization: This is the incorporation and blending of recycled concrete aggregates, lime or fly ash into marginal quality subgrade materials, which can be used to enhance the load bearing capacity of that subgrade. This process changes the water susceptibility of the subgrade, thus stabilizing the soil.
Pipe Bedding: Recycled concrete can be used as a stable bed or firm foundation to lay underground utilities, as well as granular trench backfill.
Landscape Materials: RCA can be used in various landscape settings. For example, one might make a raised bed or retaining wall, using recycled concrete. Other landscape uses include: rock armoring of drainages, underpass abatement structures, and more.
Industry Driving Recycling Movement
Social awareness and technical basis of people living, conducting business, and building with the mindset of protecting the environment and our world has increased significantly over the course of the past 20 years. Both nationally and globally. Two key movements have been advancing for people to be more sustainable in our methods and materials, and to track our carbon footprint, in an effort to reduce it. As it relates to the building and construction industry, the U.S. Green Building Council (USGBC) created a sustainability rating system for the design, construction and maintenance of various developments, referred to as Leadership in Energy and Environmental Design (LEED).
Buesing Corp. Recycling Services for C&D
Buesing Corp. proudly recycles old construction and demolition (C&D) materials, such as concrete and asphalt whenever possible. These materials are recycled at our Chandler location. While we do accept C&D materials from outside construction companies, a dump fee per load is required.
We also manufacture recycled aggregates by crushing 24″ minus broken concrete into ABC using the same gradation requirements set forth by MAG 720. Our crushed concrete ABC is widely accepted by the City of Chandler and other local municipalities.
Buesing Corp. also receives in-bound asphalt pavement debris and recycles the material into various products. Asphalt is crushed into a Ground Surface Aggregate (GSA) that has many temporary and permanent dust/surface stabilization applications. We also crush asphalt for the purposes of Recycled Aggregate Pavement (RAP). A percentage of RAP is incorporated into commercial hot mix pavement material.
Companies often consider on-site recycling. In situations where transporting and disposing C&D materials is not cost effective, we are capable of offering onsite recycling services, and total project site solutions. Buesing owns/operates several mobile truck crushers, two-deck screens, and radial stackers. We are able to provide the same recycling services on the project site as we are at our fixed plant in Chandler. This onsite recycling approach increases the project cost savings by substantially reducing the required trucking; less haul off of raw debris; and import/transport of virgin aggregates.
Buesing Corp. was featured in the Construction, Demolition, and Recycling Magazine in November 2016. Jerry Buesing, the owner of Buesing Corp., is featured on the magazine’s cover. 18+ years of recycling experience is highlighted within. We invite you to review this magazine using the following link: http://magazine.cdrecycler.com/issue/november-2016
For more information on inbound concrete and asphalt recycling, visit our website. You can also contact our plant manager at (602) 799-5713.