HercBase logo

Intelligent Soil Stabilization

WHAT IS HERCBASE™

HERCBASE™ is a unique Canadian additive system, that is designed exclusively for cementitious materials to suspend the reactive particles into a pseudo-plastic matrix. HERCBASE™ allows for easier transporting and dust-free placement of cement, fly ash, lime, blast furnace slag, lime kiln dust, cement kiln dust (or any combination) via liquid tanker truck for periods of up to 6 hours without degradation or segregation.

WHY HERCBASE™

  • Cement factor 2%-8% (3%-5% common).
  • Effective in granular and clay soils.
  • Significant and immediate reductions in PI
    • Immediate increase in soil strength.
    • No mellowing, allowing for next day traffic and construction.
    • All-weather work platform.
  • Produces workable foundation for both rigid and flexible pavements.
  • Permanent modification
    • Strength improves immediately & increases over years.
    • No long-term effects from leaching.
  • Reduced maintenance costs.

HOW DOES HERCBASE™ WORK

HERCBASE™ produces a predictable robust liquid that thoroughly coats soil/aggregate particles prior and during mixing; which assures accurate distribution, expediency of mixing and obtaining density while not exceeding optimal moisture. The mechanical energy generated by the mixing machine/re-claimer during the process of incorporating HERCBASE™ into the substrate soil/aggregate, de-activates the HERCBASE™ chemistry, allowing the material to revert from its pseudo plastic state and return to its initial/final hydration time lines regardless of ambient atmospheric temperatures above freezing.

HERCBASE™ Process

1

HERCBASE™ is transferred from the tanker to the application wagon.

2

HERCBASE™ is placed into the soil by precise injection using the specialty applicator.

3

HERCBASE™ and soil are mixed using a pulverizer.

4

Cemented soil is then compacted to reach desired compaction.

5

The Motor grader blades the compacted soil.

6

A steel drum roller finishes behind the motor grader concluding the process.

HERCBASE™ VS CEMENTITIOUS PRODUCTS

  • HERCBASE™ is an environmentally friendly construction process.
  • Not harmful to workers or bystanders.
  • More consistent than dry products once mixed with the soil.
  • Faster production for stabilization crews.
  • Less dust, resulting in less maintenance to equipment.
  • Requires less water & cuts down on water haul-in time.
  • Less site congestion.
  • Safer work environment and ease of truck scheduling.
  • The all weather ability of HERCBASE™ allows for it to be applied on wet and windy days, allowing you to stay on schedule.
  • HERCBASE™ gets more utilization out of the cement, resulting in a decreased amount of cement required to reach the same results of a dry product. One ton of reduction in cement amounts to a one ton reduction of greenhouse gases. Less cement per project also helps in times of cement and trucking shortages.

HERCBASE™

Conventional

ENVRONMENTAL AdVANTAGES

  • Eliminates removal of soils from job site.
  • Liquid form eliminates air pollution-causing dust.
  • Soil stabilization uses less product resulting in decreased construction traffic, reducing fuel emissions.
  • Cement stabilization uses less water, in comparison to unbonded pavement construction.

TECHNICAL AdVANTAGES OF CEMENT SOIL STABILIZATION

  • Stabilized cement soil has layer coefficient number of .20 - .24.
  • Low permeability.
  • Increases compressive strengths of soil.
  • Increases durability of pavement.
  • Increases pavement support (optimizes the performance of upper layer).
  • Decreases plasticity index to meet job specifications.

Economical Advantages of Cement Soil Stabilization vs Unbonded Bases

  • Unbonded base structural number is .12/inch - Cement.
  • Stabilization structural number is .20 to .24/inch.
  • Truck traffic & fuel usage reduced.
  • Allows for work in wet conditions (fast construction).
  • Use of existing soils eliminating haul-in and haul-out.
  • Pinpoint Application
    • Reduced waste of existing material on job site.
    • Consistent delivery rate with computer controlled applicator.
    • Higher concentration of slurry to soils.