Process steps

Process steps for processing EvoCrete®

EvoCrete® soil stabilisation processes are not only efficient, but also user-friendly and yet sophisticated. Experienced professionals and specialised machinery are essential to guarantee the highest quality. A thorough soil analysis and suitability test is the first step to ensure that the project meets the highest standards.

The process begins with the removal of the old asphalt by milling and crushing. The EvoCrete® /cement mixture is then precisely spread and milled into the ground. After compacting, levelling and watering, the ground is ready for the new surface within 24 hours, which significantly shortens the construction time and saves resources.

Quality assurance

  • Geotechnical supervision:
    by means of static load plate load tests according to DIN 18 134
    and dynamic plate load tests as well as by means of the light drop weight device
  • Extraction of drill cores
  • Compressive strength tests etc.

This is how the processing ...

  • Milling off the excess asphalt pavement
  • Up to 10 cm of the old asphalt pavement can be milled in during the milling of the binder mixture
  • Removal of the milled asphalt pavement for reprocessing
  • Ripping up the old foundation layer
  • Larger chunks of stone are thus transported upwards for manual selection or crushing by the stone crusher
  • Mixing in the milled surface and crushing the foundation layer with the stone cutter to a grain size # 32 mm
  • Ensure trafficability
  • Reduce the water content of the soil if necessary
  • Soil replacement measures if necessary
  • On-site construction / pre-compaction of the rough subgrade
  • Ensure unobstructed trafficability of the area
  • Marking / pegging out the stabilisation area
  • Securing installed supply lines
  • Suitability tests to determine the cement / additive mixture
  • Spreading the binding agent
  • Provision and use of suitable gritting vehicles
  • Construction site logistics for punctual delivery of the gritting vehicles
  • Monitoring the spreading process
  • Milling the cement/additive mixture into the ground to the required depth using a large or mounted milling machine
  • If milling depths > 50 cm are required, the existing soil is excavated, temporarily stored on the side, mixed with binding agent and then reinstalled.
  • Irrigation of the base course (evaporation protection) using an irrigation unit
  • Continuous addition of water without interrupting the milling work
  • Creation of the fine subgrade on site
  • Creating fine subgrade with grader (laser-controlled)
  • Dynamic and/or static compaction of the fine subgrade using a smooth drum roller (weight $12 tonnes) to an average level.
  • Finally, compact with a rubber-wheel compactor (weight $14 tonnes)