IS 16481:2016
Synthetic Micro-Fibres for use in Cement Based Matrix
summary
Synthetic micro-fibres are fine polymer fibres added to cement-based materials like concrete and mortar to control plastic shrinkage cracks. They improve toughness, durability, and resistance to early-age cracking by providing uniform reinforcement throughout the cement matrix.
Why BIS Certificate is Mandatory for Synthetic Micro-Fibres for use in Cement Based Matrix
BIS certification is mandatory to ensure synthetic micro-fibres meet Indian Standards for fibre size, tensile strength, dispersion, and durability. Certification prevents the use of inferior fibres that may weaken concrete performance, ensuring structural safety, quality consistency, and compliance with construction regulations in India.
What is BIS Certified for Synthetic Micro-Fibres for use in Cement Based Matrix
The BIS certified specification defines requirements for synthetic micro-fibres used in cement-based matrices, including material composition, fibre dimensions, tensile properties, dispersion behavior, resistance to alkali environment, and performance tests. These standards ensure fibres enhance crack control and long-term durability of concrete.
Test required for Synthetic Micro-Fibres for use in Cement Based Matrix
| Title | Mandatory/Optional |
|---|---|
| Cross section | Required |
| Tensile strength, Ultimate elongation | Required |
| Specific gravity | Required |
| Melting Temperature | Optional |
| Glass Transition Temperature | Optional |
| Equivalent fibre diameter | Required |
| Length | Required |
| Aspect ratio | Required |
| Drying shrinkage for concrete only | Optional |
| Material identification, cut length | Optional |
| Test for checking polyester virgin fibres/IPA content | Optional |
| Test for polymer content of all virgin polymers and other additives | Optional |
| Material (Secant Modulus) | Optional |
| Resistance to Alkalis | Optional |
| Resistance to Acids | Optional |
| Resistance to Ageing, | Optional |
| Optional | Optional |
Benefits of BIS Certification forSynthetic Micro-Fibres for use in Cement Based Matrix
-
Assured Performance Quality
BIS certification ensures fibres meet specified tensile strength, size, and dispersion requirements, providing effective crack control in cement-based applications. -
Improved Structural Durability
Certified fibres enhance resistance to shrinkage cracking and improve the long-term durability of concrete and mortar structures. -
Consistency in Construction Projects
BIS standards ensure uniform quality across batches, reducing variability and performance failure in large-scale construction works. -
Legal and Regulatory Compliance
BIS certification is mandatory in India, allowing manufacturers and suppliers to legally sell fibres for construction without penalties. -
Enhanced Market Trust and Acceptance
BIS-marked fibres gain higher acceptance among builders, contractors, and government agencies, improving brand reputation and tender eligibility.