US4000000A

In recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually directed towards an output end of the drum, the improvement comprising adding an amount of petroleum hydrocarbon to achieve a laid down asphalt ....

Recycling Concrete

Recycling of concrete pavement is a relatively simple process It involves breaking, removing and crushing concrete from an existing pavement into a material with a specified size and quality Crushed concrete may be reused as an aggregate in new Portland cement concrete or any other structural layer...

The Pros and Cons of Recycling

May 21, 2018· Pro 2: Recycling creates jobs Recycling is a source of jobs in a community Recycling plants, the manufacture of recycled products and the creation of recycling-related materials like recycling bins all contribute to job growth in the economy Recycling can be a source of good, middle-class jobs for people without a lot of education under ....

Concrete recycling

When structures made of concrete are demolished or renovated, concrete recycling is an increasingly common method of utilizing the rubble Concrete was once routinely trucked to landfills for disposal, but recycling has a number of benefits that have made it a more attractive option in this age of greater environmental awareness, more environmental laws, and the desire to keep construction ....

Construction and demolition waste recycling

Recycled construction and demolition (C&D) waste is an endless source of raw materials for various purpos...

Plastic Recycling

Inconsistency in viscosity, melt flow and molecular weight of the incoming materials complicates the mechanical recycling process The recycled plastic can be used in packaging, strapping or non-food applications based on the degree of material sorting and purification achieved by the recycling process...

Plastic Recycling

Monomer: Through the elaborate and accurate monomer recycling process, major challenges of plastic recycling can be overcome This process actually reverses the polymerization reaction in order to recycle the same type of condensed polymer This process not only purifies but also cleans the plastic waste to create a new polymer...

Plastic Recycling

The USEPA oversees a variety of solid waste regulatory issues including setting recycling goals However, recycling is legislated through state and local governments and a national law for recycling does not exist in the United Stat...

Recycling presentation

Mar 02, 2016· Recycling presentation 1 Recycling 2 What is recycling? Why is it important to all of us? 3 Definition To recycle: to treat or process used materials or waste so we can use these materials again This stops us from wasting useful materials...

Recycling Process

To give a different example, the primary production of metals from sulfuric ores (eg, copper) often causes emission of sulfur oxides, which happens much less during recycling of these metals...

Recycling is a Manufacturing Process

Recycling is a manufacturing process Pause for a moment and re-read that first sentence It is the core of any recycling program, but too often is missing from any discussion about recycling At its core, recycling is more about making our manufacturing and consumption more sustainable than it is about landfilling or waste management...

Sorting and Recycling Facility

Jul 20, 2015· Take the journey from curbside to finished sorted materials, r, Follow the recycling and sorting process at Homewood Disposal in the south suburbs of Chicago Skip navigation...

Recycling Process

Our process for recycling bulk construction debris Asphalt and concrete are among the simplest materials to recycle and re-use, achieving significant environmental benefits as well as substantial cost savings over materials...

Process Of Recycling Aggregates

Process of recycling aggregates Jun 25 2019 This activity is known as the plastic recycling process The goal of recycling plastic is to reduce high rates of plastic pollution while putting less pressure on materials to produce brand new plastic products This approach helps to conserve resources and diverts plastics from landfills or...

Recycling

Recycling saves materials, reduces the need to landfill and incinerate, cuts down pollution, and helps to make the environment more attractive It also creates jobs, because recycling things takes a bit more effort than making new things Recycling doesn't just save materials: it saves energy too...

US4000000A

US4000000A US05/488,518 US48851874A US4000000A US 4000000 A US4000000 A US 4000000A US 48851874 A US48851874 A US 48851874A US 4000000 A US4000000 A US 4000000A Authority US United States Prior art keywords asphalt composition hydrocarbon process heating Prior art date 1972-09-05 Legal status (The legal status is an assumption and is not a legal conclusion...

Process Of Recycling Aggregates

The three steps to recycling are The first step is to collect the materials that can be recycled Once the items have been collected the next step is to find a secondary use of the material The next step in the process is to purchase goods made from recycled materials Learn More What Process Is Used In Recycling Concrete Crushcon QLD...

How Is E

Jul 12, 2015· The e-waste recycling process Because electronic waste contains a variety of materials, including plastics, glass, and metals, recycling e-waste requires several steps to recover these resources in the most efficient manner In general, both manual labor and automation are involved during the electronic waste recycling process...

Recycling

To fully implement Aggregate process Plant, must be good to solve the following questions: (1) to strengthen the scientific research of construction waste Recycling Aggregate process Plant mainly in the form of recycled aggregat...

Sorting and Recycling Facility

Jul 20, 2015· Follow the recycling and sorting process at Homewood Disposal in the south suburbs of Chicago Take the journey from curbside to finished sorted materials, ready ,...

KR101043069B1

Process Of Recycling Aggregate The present invention relates to a method for manufacturing circulating aggregate, and more particularly, it is possible to crush and crush aggregate of construction waste or waste concrete to an appropriate particle size, and to heat-dry at high temperature to effectively remove foreign substances contained in waste aggregate...

Crushed Concrete Aggregates

We process and sell recycled crushed concrete and asphalt aggregat Most orders for aggregates from our 9 recycling centers are delivered within 24 hours, with quite a few orders given same-day service For pricing and availability, please call: (713) 436-0990...