Asahi Kasei Advance



The Fabriform process is a construction technique in which fluid mortar or concrete is pressure-injected into a fabric form made of high tenacity synthetic fiber. (Japanese Patent: 636074, 133167,706813)

The fabric form is water permeable, permitting the release of excess mixing water through the fabric under injection pressure.

Accordingly the resulting reduction of the water/cement ratio results in early stiffening of the concrete or mortar, increases in density and compressive strength,improvement in abrasion resistance and reduction of permeability.

The Fabriform process is applicable to construction of revetments for protecting the shorelines of canals, rivers,and reservoirs and also for preventing the scour of canal and stream beds.

Fabric casting is used in the construction of groins,breakwaters,pipeline saddles and similar oceanfront and deep water structure. Pile jacketing is for structural restoration and protection of steel,wood and concrete piles.

The Fabriform process is described in U.S. and foreign patents assigned to Construction Techniques,Inc. (Contech) and is offered in Japan under exclusive license by Asahi Chemical's Industry Co.,Ltd. which provides marketing and technical services.

The fabric is woven of Asahi Chemicals high tenacity synthetic fiber which is particularly suitable for use in the Fabriform process. Experience record to date has been excellent.

The Fabriform revetment or mat is a double layer fabric form woven of high tenacity synthetic fiber yarn necessary to sustain injection pressure. Textured yarn improves filtering characteristics of the fabric and prevents loss of cement. Fabriform structures can be installed in-the-dry and underwater with equal facility.

Advantage of Fabriform

  1. High production:
    Fluid mortar is pump injected. Large surface area can be quickly protected.

  2. Conforms perfectly to the ground surface:
    Fabriform adapts to curved and irregular surfaces. The thickness on the revetment will be uniform regardless of slope or gradient.

  3. Fabric forms are shop assembled:
    Fabric assemblies are tailored in the shop to suit site topography. Shop assembly saves man hours in the field,providing cost savings over conventional methods.

  4. Economical transport and storage:
    Transportation and storage of fabric forms are easy and safe because of its light weight (450-500 g/m2 ),strength and durability.

  5. High strength and rapid stiffening:
    Since the W/C ratio of the mortar is greatly reduced during pressure injection,stiffening is rapid,early compressive strength is very high and curing time is greatly reduced.

  6. Easly installed underwater:
    No dewatering is necessary. Fabriform can be installed even under flowing water. There is no need to reroute a river or canal. Fabriform saves time and money.