The Process of Hot-In-Place Recycling

Explore our cutting-edge equipment and discover the transformative steps of Hot In-Place Recycling – Where budget efficiency meets community impact with high quality roadways.

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Click below on the pins to learn more about each feature on our equipment.

Here’s the 8-step heater scarification process

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STEP ZERO

Pre-Mobilization

  • Pre-laboratory testing ensures success
  • Agency pulls a set of 6” cores
  • Lab testing:
    • Penetration Number (softness)
    • Feasibility of HIR on Roadway
STEP ZERO
Step One

PRE-HEATING PASS 1

  • Two Step heating process ensures proper heat distribution and thermal penetration
  • First Pre-Heater takes pavement temperature to 180-200 degrees
Step One
Step two

PRE-HEATING PASS 2

  • Allowing material to be scarified at specified depth
  • Second PreHeater takes pavement temperature to 280-300 degrees (traditional asphalt temperatures)
Step two
Step three

REJUVENATING

  • Evenly apply a bituminous rejuvenating agent
  • Core testing in laboratory will help guide this application rate in the field
  • Application rates are typically close to 0.1 gallons per SY
Step three
Step four

SCARIFYING

  • Spring-loaded tines set hydraulically at prescribed depth and will drag over existing structures to avoid damage
Step four
Step five

MIXING

  • Full width reversible augers
  • Used to uniformly blend scarified material and rejuvenating agent together
Step five
Step six

PAVING

  • Re-profiling recycled asphalt through a standard paving screed
  • Eliminating centerline joint
Step six
Step seven

COMPACTING

  • Compaction!
  • Targeting same densities as traditional asphalt pavement surface courses
  • Combination Roller
  • Rubber Tire & Steel Drum
Step seven
Step Eight

Final Wearing Course of Your Choice

The now re-plasticized asphalt is ready to receive its final surface course such as:
  • Thin Lift HMA Overlay
  • Chip Seal
  • Micro-surface
Step Eight

About Services

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Benefits of Service

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Leadership

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Teamwork

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Innovation

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Our Customers’ Experiences

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