Pavements
 Repair Materials
  CL-Mix (for Patching)
  W-Taper
   (for faulting correction)
 Asphalt Pavement
 Concrete Pavement
 Semi-Flexible Pavement
 Functional Pavement
 Paving Materials
 Repair Materials
 Special Methods
 Recycling
Landscape Creation
 Saiga
  (natural pebble pavement)
 W-Wood
  (Wood Chips Pavements)
 W-Sand
  (Soil Pavement)
 CA-panax
   (Coloured Pavement)
 RP-pavement
   (semi-flexible pavement)
 W-Rolled
   (rolled asphalt pavement)
 Landscape Estimation
Pavements for Sports
 EXCELLENT Series
  SEMI-HARD
  HARD
 Soil Pavements
Building Construction
Laboratory
HomeAbout USHistoryOrganization
(in japanese)
IR Info(japanese)Contact us
(High Strength Rapid Hardening Fauling Corrector)
W-Taper
What is W-Taper?

It is a mixture for correction of faultings that uses a chemical reaction hardening acrylic resin as binder. It is excellent flexibility and harden in short time at the temperature of even 30°C below 0.


Merits are;

  1. rapid to harden, able to open to traffic in 30-120 minutes.
    (the time for hardening can be adjustable at sites)
  2. harden at the temperature of even 30°C below freezing point.
  3. As it is excellent at flexibility, it is able to accommodate the deformation of existing road surface.
  4. excellent at raveling resistance, weathering resistance, chemicals resistance and workability.


Applicable to;

  1. Correction of faultings at joints of bridges and pavements.

  2. Repair of raveled pavements

  3. Coatings and repair of concrete floor in storehouses.

  4. Tapering treatment around manhole


Procedure of Repair Works


  • Clean the surface to be treated and remove dusts.
  • When the surface is wet, dry it completely by propane burner or so.

  • In order not to make dirty the non treated surfaces and to rectify the shape of treating area, mask the non treated surfaces with gum tapes or so.

  • In order to secure the adhesivity between treated surface and W-Taper, paint primer (0.3-0.5 kg/m2)

  • Weigh the aggregates and binder resin so as to meet the specified ratio of mixing and mix them by mortar mixer until they are uniformly mixed.

  • Spread W-Taper, compatct using tamper or so and finish using trowel or so.
  • Remove the masking tapes and cure until W-Taper is hardened (about 40-60 minutes)
Construction Dictionary
(japanese)
Japanese CultureLinks to Local Governments
(by prefecture)
Links to Local Governments
(by sound)