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SUPER GANKOMASA can be used for sidewalks and garden paths as it has the texture of natural soil.

Durability, often a weak point for soil paving material, is improved by using a rolling compaction method.

  • Compaction roller

  • Garden path


SUPER GANKOMASA can be used on a sloping surface.

  • This material is useful for measures that require strength and weed-proofing the surface of slopes.
  • The surface of slope with SUPER GANKOMASA

  • With the covering net

Precautions
  • Inclination angle should be 1:1.5 (about 34 degrees)
  • Length of slope should be no more than 2 meters.
  • *Please set the net on the foundation so as to prevent falling materials and reduce cracks.

Quality

  • Made of decomposed granite soil
  • The stable pre-mix production with less non-uniformity

Environment and safety

  • SUPER GANKOMASA keeps the temperature of the surface low, and mitigates the reflected heat in summer.
    (Heat island phenomenon suppression effect)

Main uses

  • Stairways

  • Passages in castle grounds

  • Public squares

  • Surfaces of slopes

  • Promenades

  • Passages in graveyards


Operation results

  • Ama City, Aichi Prefecture
    Temple

  • Sanda City, Hyogo Prefecture
    Sanda Culture Town

  • Ayabe City, Kyoto Prefecture
    Kanbayashi-gawa River

Operation Design Standard

Construction Movie


Construction Procedure

  1. Foundation Correction

    Lay more than 100mm-thickness of Crusher-run C30, and carry out the rolling compaction.
    Use compacting equipment, hand-guided rollers (walk behind type rollers), etc. for the rolling compaction.

  2. Leveling

    Do leveling, and make the drainage slope.
    Quantity used: 3.2 bags per square meter (Thickness: 40mm)
    *Please make joints at intervals of 5 meters.

  3. First rolling compaction

    Do the rolling compaction in both directions with a roller.
    Do the rolling compaction starting from the edge.

  4. Surface Correction

    Correct surface unevenness with rakes.

  5. Brushing

    Brushing makes a uniform finish, and removes the deviations caused by particles on the surface.
    Brush smoothly and lightly on the surface.

  6. Water sprinkling

    Sprinkle water over the whole surface uniformly.
    Sprinkle water until it comes up to the surface, and do it 3 times at 5- or10-minute intervals.
    Needed water: 11-12 liters per square meter (thickness: 40mm)

  7. Excavating and confirming the permeation

    Excavate the surface, and check the permeation of water by sight.
    *Confirm that the water permeates more than two-thirds of its thickness. If it is not enough, sprinkle water again.

  8. Second rolling compaction

    After the watering, do the rolling compaction in both directions 3 times with a roller.
    Do the rolling compaction from the edge.
    Do the second rolling compaction 15 minutes after the first compaction in summer, 30 minutes after in winter.

  9. Curing

    After the operation, sprinkle water for curing.
    Do the same operation the next day if doing in summer.

  10. Curing with a mat

    Do the curing with a mat in winter.


Combination construction method

Merits
  • Shutting out Weeds which come out from cracks
  • Easy to operate, just laying and leveling
  • As it is used with the original foundation,it won’t change the texture of the pavement.
  • No chemicals used
  • Use of recycled aggregate
Precautions
  • Use compacting equipment, hand-guided rollers (walk behind type rollers), etc. for the rolling compaction of the foundation (roadbed).
  • Use wooden or plastic trowels, and NOT metal trowels.
  • Stiffening defects might occur due to deficiency and excess of watering.
  • Don’t proceed with installation when it rains or snows.
  • To avoid freezing, don’t proceed with installation when the temperature is below 5 degrees Celsius.
  • Do not use it indoors.

Specification

The comparison table for the temperature of the surface
表面温度比較表 スーパーガンコマサとアスファルトの温度差は最大10℃

Precautions
  • Efflorescence (crystalline salt deposits), cracks, or moss might occurdue to the conditions at the site.
  • Wear masks, gloves, and dust-proof glasses when using.
  • Allow enough space for tree roots so as to not inhibit the growth of trees.
  • Store in a place with low humidity, and finish using all material after opening the bag.

Options

Compaction Roller Ittetsu-kun (standard)

  • Weight: 30kg
  • Total width: 626mm

Compaction Roller Ittetsu-kun (compact)

  • Weight: 24kg
  • Total width: 360mm

  • Sheet pallet

    a product with a registered design

    Reduces the unloading work, and eliminates the manual unloading process when it’s brought to the site.
    Cab be fully opened easily with Velcro!


Suppression for moss and mold

It suppresses stains and dirt on the pavement surface.

Package

  • 25kg bag / 500kg flexible container / 1t flexible container
Progressive condition of inhibitory effect on moss and mold
  • A newly finished operation from 2011

    Surface of slope with SUPER GANKOMASA

  • 2014, 3 years after the operation

    The back side of the slope uses the standard type, and front side has been done with the moss and mold suppression type.

    You can see that the standard type has some stains, but the suppression type has retained the same color as when the operation was done.

  • 2017, 6 years after the operation

    The back side of the slope uses the standard type, and front side has been done with the moss and mold suppression type.

    The suppression type has kept its effect even 6 years after the operation.

Condition of moss and mold growth
  • Black mold has appeared (left)
    With the moss and mold suppression type (right)

  • Moss appeared on the black mold.

  • Moss spread out.

Under conditions with shade or humidity, moss will grow more easily and the suppression may differ from the usual conditions.

Operation results