RMC REF Report: Crushed Returned Concrete as Aggregates for New Concrete 3 amount of FRCA increases. The reduction is reported to be between 5% and 24% when just coarse RCA was used and between 15%40% when all of the RCA (including the fine fraction) was used.

If the material has further life to it, whether it's to be used as crushed concrete, or run though a reclaimer, or poured as block, then concrete is not a waste at all. I hear it a lot for used oil vs waste oil, for example.

21aa Crushed Concrete: Base for Patios. Weighs 2600 lbs per yard. 1 Yard = Ton. 1 ton covers aprox 90 sq ft 2". . Per Ton

Crushed concrete can be used as material in temporary roads, construction staging areas, drilling pads, building pad caps, construction entrances, drainage fill and flexible base under paving. Smaller pieces of concrete can be used as gravel in new construction projects.

Our crushed concrete inventory includes: Flex base/Crushed Concrete (TX DOT 247 Type D) Bull rock (3" X 5") HCFC spec. Blanket stone (2" X 4") Grade 1 Rip Rap (12" x 18") HCFC spec (80 – 150 lbs) Grade 2 Rip Rap (18" x 24") HCFC spec (150 – 250 lbs) Screened Rock (1 – 1 ½") Crushed Concrete Aggregate. Fines (3/8" minus)

crushed concrete and asphalt from demolished pavements. Again, contractors must pay transportation costs, as well as disposal fees, to discard these materials. One solution is to recycle these materials, often called recycled asphalt pavement (RAP) and crushed concrete (CC), and use them as .

The specific gravity of all other materials are compared to water as a fraction heavier or fraction lighter density, no matter how small or large the fraction is. For example, ammonium nitrate has a specific gravity (sg) of while dry ammonium sulphate has a sg of (1130 kilograms/cubic meter).

Crushed Aggregate Recycling. We currently have the following aggregate recycled products: FDOT Certified road base, nonFDOT road base, riprap made to requested specifications, #57 crushed concrete, and concrete fines. We also carry crushed asphalt, asphalt millings and asphalt screenings.

Recycled concrete, or crushed waste concrete, is a feasible source of aggregates and an economic reality, especially where good aggregates are scarce. Conventional stone crushing equipment can be used, and new equipment has been developed to reduce noise and dust. Aggregates must conform to certain standards for

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Crushed concrete aggregate (CCA) is granular material manufactured by removing, crushing, and processing old concrete for reuse as an aggregate source in new construction. Although the Michigan Department of Transportation (MDOT) has used CCA since the 1980s, issues in the performance of

The Contractor may use crushed concrete coarse aggregate in the following concrete mixtures: curb and gutter, valley gutter, sidewalk, concrete barriers, driveways, temporary pavement, interchange ramps with a commercial ADT less than 250, and concrete shoulders. Do not use crushed concrete coarse aggregate in the following: mainline

Crushed Concrete Originates from demolition and can be graded to certain specifications like type 1. Crush concrete can come in different sizes and can be lumps of concrete usually ranging from 75mm crushed down to dust or in nugget form.

What does 1 cubic yard of crushed concrete weigh – The QA .. Answer They typical weight of a yard of crushed concrete runs around 3,000lbs or a ton and a half. The weight will vary between company mainly because of the crush . »More detailed

Crushed sound and clean waste concrete of at least 95% by weight of concrete with typical total contamination lower than 1% of the bulk mass. Class 1A RCA is a well graded RCA with no more than % brick content. Partial replacement (30%) for natural aggregate in .

Oct 24, 2011· One place does limestone, the other crushed concrete. The crushed concrete will run my about 5/ton less. With an estimated need of 4550 tons, thats a pretty significant savings. I have a double drum roller which I plan to use to pack the new material into the existing drive to help smooth it and form a solid base.