Basalt Fiber Testing

Basalt fiber is a continuous inorganic non-metallic fiber manufactured by melting natural basalt ore at 1450–1500℃ and drawing it through platinum-rhodium alloy bushings at high speed. It features high strength, temperature resistance, corrosion resistance, environmental friendliness, and insulating properties. In the mid-1990s, the Nanjing Fiberglass Research & Design Institute began research on ultra-fine fibers. The technology was included in the National 863 Program in 2002, and industrialization was achieved in Shanghai in 2004. China has now become the world’s largest production base, accounting for over 60% of global output, with Sichuan as the core region and coordinated development across multiple regions. Leading enterprises include Sichuan Aerospace Tuoxin and Zhejiang Shijin.

Testing Products

Basalt Fiber Roving

Basalt Fiber Textile Yarn

Basalt Fiber Chopped Strands

Basalt Fiber Texturized Yarn

Basalt Fiber Sleeving / Braided Sleeves

Basalt Fiber Chopped Strand Mat

Basalt Fiber Multiaxial Fabric

Basalt Fiber Felt / Blanket

Basalt Fiber Reinforced Polymer (Rebar) / Tendons

Testing Items

Length (of chopped/fibers)

Fiber Diameter

Linear Density (Tex)

Breaking Strength / Tenacity, Elastic Modulus, Elongation at Break

Moisture Content

Combustible Matter Content (LOI/Size content)

Flammability / Ignitability

Heat Resistance (Thermal stability)

Alkali Resistance

Appearance & Acceptance Rate

Chemical Composition (Oxide analysis)

Stiffness (Handle-o-meter / Cantilever stiffness)

Chopped Strand Integrity & Dispersibility

Drape (Conformability)

Acetone Solubility

Flexural Strength of Rod-shaped Composites

Mass per Unit Area (Areal density)

Testing Standards

Basalt fiber composites for civil engineering structures (basalt fiber fabric, rebar/tendons): GB/T 26745-2021

Chopped basalt fibers (general, for cement, concrete and mortar): JT/T 776.1-2010, GB/T 23265-2023

Basalt fiber roving: GB/T 25045-2010

Basalt fiber geogrids: JT/T 776.3-2010

Service Advantages

The company hosts the National Center for Quality Inspection and Testing of Glass Fiber Products, holding national-level CMA qualification and CNAS laboratory accreditation.

As the lead drafter, the company has formulated or revised over 30 national and industry standards in the field of high-performance fibers and products, such as GB/T 25045-2010.

Specializing in testing in the thermal insulation and fiber fields for over 60 years.


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