EQUIPMENT: ASPHALT RUBBER

Modified Binder Technology: Asphalt Rubber Equipment

Asphalt rubber is the premier modified binder material:

Asphalt Rubber significantly improves

  1. Fatigue crack resistance
  2. Low temperature cracking resistance
  3. Rut resistance
  4. Resistance to bleeding
  5. Aging Resistance
  6. Stone retention
This means it is the best type of binder to use in:
  1. Hot mix overlays on PCC on Asphalt pavements
  2. SAM and SAMI seals
  3. Surface Chip Seals
  4. Cape Seals

Tech Library - Asphalt Rubber Articles

EQUIPMENT AND TECHNOLOGY

Reed International and its sister company International Surfacing Systems are pioneers in Asphalt Rubber

The unique combination of chemical and road engineering (ISS, Western States Surfacing/ VSS Asphalt Technologies) , Equipment development expertise ( Reed International) means that equipment is designed for real world users.

Reed International has designed and built the latest in functional and efficient asphalt rubber blenders, nurse tanks, metering, and whole system on road systems.

Reed International can tailor systems to the clients needs.

When you purchase from Reed International you have the backing of the all the Reed Group companies for contracting, chemical and engineering expertise. *

*Full start-up technology packages are available either as a part of the equipment package or as stand-alone packages.

MAIN ELEMENTS OF THE SYSTEM:
  • Weigh Hopper
  • Heater Blender
  • Reaction Vessel



Weigh Hoppers

The metering hopper is a key piece of equipment, it allows free flow of crumb rubber to the blender, it ensures accurate dosing and lumps (agglomerated particles) are broken down before the blending tank. The weigh hopper weighs in the crumb and controls the batch size.
Towed to site with all equipment the metering hopper may be filled from 50kg bags or large super sacks.

Features:
  • Load Cell weight controls
  • Batch controls display rate of change, net and total hopper weight.
  • Operator enters batch size by weight.
  • Folding walkways along hopper sides.
  • Heavy duty trailer.
Vital Specs: Asphalt Rubber Specifications
Heater/Blender

The blender is the heart of the system, It's function is to combine the extender oil and the asphalt (bitumen) and to wet out the crumb rubber and disperse it to allow optimal reaction between the aromatic-napthenic fractions of the asphalt and extender oil for optimum binder properties.

Steps of Blending:
  • Super Heat the Asphalt to mixing temperature.
  • Meter the Asphalt into the Mixing Chamber.
  • Load the Crumb Rubber from the Rubber Hopper.
  • Mix the Asphalt and Crumb Rubber.
  • Pump the mixed Binder to the Reaction Vessel.
Features:
  • Direct Fired Heating for fast efficient heat transfer.
  • Safety controls on burners with sequential indicator lights.
  • Electric over Hydraulic controls.
  • Hydraulic powered for pumps, augers and mixer.
  • Hot Oil Jacketed lines, valves and pumps.
  • Mass Flow Meter controlling asphalt flow and batch total.
  • Specialized Asphalt Rubber Pump for Binder Mixture.
  • Mobile and designed for easy setup and transport.
Vital Specifications:
Reaction vessels:

The function of nurse trucks or reaction vessels is to ensure that the crumb is reacted to the correct extent in the finished binder. Heat plays a big role in this reaction.

Too little heat and the reaction will take too long and too much and degradation of the rubber and or asphalt can occur.

The Reed International reaction vessels feature the ability to control temperature and create an even and controlled reaction.

Steps:

  • Receive the Asphalt Rubber Binder from the Heater-Blender.
  • Raise the Temperature of the Binder.
  • Agitate the Mixture to facilitate the reaction.
  • Meter Binder to the Asphalt Plant for Hot Mix Projects.
  • Load Binder into Spreader Trucks for Chip Seal Projects.
  • Provide enough storage to allow for reaction time.

Features:
  • Direct Fire Heating for fast and efficient heat transfer.
  • Large powerful augers with split pitch flighting for agitation.
  • Mass Flow Meter to accurately control metering of binder.
  • Two compartments to allow blending and reacting.
Vital Specs: Asphalt Rubber Specifications
The units may be locked into a hot mix plant or pump into an asphalt rubber sprayer.

ASPHALT SUPPLY TANK

For asphalt rubber heat is a vital issue, asphalt must be hot for optimum reaction times and quality results. Supply tanks can be transport trucks, portable Asphalt Storage Tanks or supply from existing stationary tanks at a Hot Mix Plant or depot.

Reed International asphalt rubber heaters have the unique feature of dual heaters that ensure that the asphalt temperature can be boosted to give rapid reaction and no excessive cooling.

Vital Specs: Asphalt Rubber Specifications

Asphalt Rubber is the premier modified binder.

Reed International equipment delivers the best asphalt rubber binder.

For all equipment needs contact:
VSS Macropaver Division
VSS Macropaver
PO Box 178
Hickman, CA 95323
Phone: 209-874-2719
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