Chopped strands in the matrix
Fiber length, integrity, dispersion, workability and mold filling are balanced for the premix process.
Project-Specific Sourcing
Alkali-Resistant Glass Fiber
AR glass fibers for GRC/GFRC and compatible cementitious systems, supplied as project-specific chopped strands, integral strands or rovings after process and alkali-resistance review.
Project-Specific Sourcing
Cementitious compatibility
AR glass is different from general glass fiber
Alkali-resistant glass is formulated for cementitious environments. Fiber chemistry, zirconia-related alkali-resistance evidence, sizing and product form must match the GRC/GFRC or concrete process.
MaterialAlkali-resistant glass suitable for cementitious use.
FormsChopped strands, integral strands or assembled roving.
ProcessPremix, spray-up, dry mix or another verified method.
FunctionCrack control, toughness or GRC/GFRC reinforcement by system.
DurabilityManufacturer alkali-resistance and aging evidence.
SupplyGrade, packaging, MOQ and lead time confirmed per quotation.
Two common production paths
Fiber form follows the manufacturing process
Roving chopped at application
Roving chopability, spray equipment, fiber loading, orientation and compaction shape the laminate.
Use the intended AR grade
Ready-mix, precast, mortar or UHPC applications require a product specifically supported for that use.
Buyer and fabricator inputs
Send the process before requesting a grade
A useful inquiry identifies how the fiber will enter the cementitious system and what finished element is being produced.
- GRC/GFRC, premix, spray or mortar process
- Component thickness and finish
- Required strand or roving form
- Target fiber content and production rate if specified
- Applicable durability and mechanical tests
- Packaging, quantity and delivery destination
ASTM C1666/C1666M where specifiedASTM C947 for thin-section GFRC flexural testingManufacturer product data and durability evidence
Fiber form and production process
Chopped strands and roving serve different workflows
Premix chopped strandPre-cut AR glass is dispersed into the cementitious mix; strand integrity, dispersion and process compatibility must match the intended component.
Spray rovingContinuous assembled roving is chopped at the spray head and deposited with the cementitious slurry in a controlled process.
Dry-mix / mortar fiberShort AR glass formats may be designed for wet or dry formulations; use only the source grade documented for that process.
Alkali resistanceGeneral E-glass is not an interchangeable substitute. Obtain the selected AR product data and durability evidence.
Technical propertiesStrand length, tex/fineness, filament diameter, sizing and mechanical properties are grade-specific.
Storage and supplyPackaging, storage guidance, MOQ and lead time are confirmed from the proposed source per quotation.
Source AR glass for a cementitious process
Send the GRC/GFRC or concrete process, required fiber form, performance criteria, quantity and destination.