products & services
KURALON™ RECS15
PVA Fibers for Structural Reinforcement
KURALON™ RECS15 PVA fibers are designed to provide structural performance in a wide array of mortar applications. PVA-ECC (engineered cementitious composite), a customized mix design using inexpensive materials and KURALON™ RECS15 PVA fibers, provides more than 200 times tensile strain capacity than other mixes with synthetic fibers. This new class of materials produces a mortar that behaves like aluminum in flexural and tensile deformation.
First developed at the University of Michigan, PVA-ECC with KURALON™ RECS15 PVA fibers has characteristics that provide rich opportunity for many applications worldwide. Repair mortars, cement boards, high-rise curtain walls, seismic remediation, ductile pipes, etc., are but a few of the many applications for this innovative material . The unmatched molecular bond strength
of PVA fibers with matrix makes KURALON™ RECS15 fibers ideal for producing structural mortars like PVA-ECC. This high bond strength eliminates the need for longer fibers, making mixing easier with less impact on slump.
Description
| Material: | Polyvinyl Alcohol |
| Configurations: | Resin-bundled chopped fiber |
| Color: | White or yellowish white |
| Specific Gravity: | 1.3 |
| Lengths: | 1/3" (8mm) |
| Tensile Strengths: | 232,000 psi (1600 MPa) |
| Chemical Stability: | Stable |
| Absorption: | Minimal |
Dosage
The optimum fiber dosage of PVA-ECC at up to 44 lbs per cubic yard offers the possibility of
reduced-steel and even steel-free reinforcement. This mix design was developed utilizing
micromechanics to deliver tensile strain capacity more than 200 times greater than other
synthetic fiber-reinforced mortars. PVA-ECC actually becomes stronger after the first crack is
formed. In tensile or flexural deformation, the material more closely resembles the ductility of
aluminum.
Dosages of 11-22 lbs per cubic yard of mix can be used to enhance the structural value of
steel reinforcement. The use of PVA-ECC combined with steel reinforcement retards the
yielding deformation and reduces hoop reinforcement. In addition, PVA-ECC typically
produces multiple micro-cracks. Since these are too small for water to permeate, structural
durability is enhanced.
Benefits of KURALON™ RECS15 in Mortar
KURALON™ RECS15 eliminates the need for conventional steel reinforcement, as well as its attendant labor, time, and costs.
Applications
- New construction and repair of airport aprons and taxiways
- Security and seismic safeguards in new structures and upgrades to existing structures
- Industrial and warehouse slabs
- Tunnel linings
- Architectural and specialty precast shapes
- Repair mortars
- Replacement for glass fiber reinforced cement
The information herein is given in good faith, but no warranty, express or implied, is made. Health and safety precautions in this data sheet may not be adequate for all individuals and/or situations. Final determination of suitability of any material is the sole responsibility of the user. Observing existing regulations and laws have are the responsibility of the user.
For more information, or to place an order call toll-free 800.456.9266 or email us.
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