--- product_id: 173283353 title: "Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47\") Length" brand: "globmarble" price: "$32.00" currency: USD in_stock: true category: "Glob Marble" url: https://www.desertcart.us/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb store_origin: US region: United States of America --- # Up to 44% increase in tensile & flexural strength 17 micron diameter for micro-reinforcement 12 mm fiber length for optimal mix integration Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length **Brand:** globmarble **Price:** $32.00 **Availability:** ✅ In Stock ## Summary > 🧱 Reinforce your concrete game with basalt fibers—strength that lasts, style that shows. ## Quick Answers - **What is this?** Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length by globmarble - **How much does it cost?** $32.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb) ## Best For - globmarble enthusiasts ## Why This Product - Trusted globmarble brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Thermal Mastery:** Withstand extreme temps from -452°F to 1,200°F, making your concrete future-proof against thermal stress. - • **Unmatched Durability:** Boost concrete resilience with fibers that resist acids, salts, and alkalis—perfect for harsh environments. - • **Effortless Integration:** Easily mix 6-8 lbs per cubic yard into your concrete or polymers without sacrificing workability or requiring special coatings. - • **Crack-Resistant Performance:** Reduce cracking and chipping with a 60-170% improvement in crack impact cycles—keep your structures flawless. - • **Enhanced Structural Strength:** Increase compressive, tensile, and flexural strength by up to 44%, elevating your concrete’s load-bearing power. ## Overview GlobMarble’s Basalt Chopped Fibers (17 micron diameter, 12 mm length) are engineered to significantly enhance concrete and polymer mixes by boosting tensile, compressive, and flexural strength up to 44%. Resistant to extreme temperatures (-452°F to 1,200°F), chemical attacks, and electrical interference, these fibers improve crack resistance by up to 170%, making them ideal for high-performance, durable construction projects including countertops, bridges, and shoreline structures. ## Description Basalt Chopped Fibers can be mixed directly into polymers and concrete to increase tensile strength, reduce cracking and chipping. Perfect for mortar and concrete reinforcement applications; all decorative applications as countertops, fireplace surrounds. Basalt Fiber has a similar chemical composition as regular glass fiber but Basalt Fiber has better strength characteristics, and unlike most glass fibers is highly resistant to acidic and salt attack and alkaline, making it a good option for concrete, bridge and shoreline structures. Compared to carbon and aramid fiber, Basalt Fiber has the features of wider application temperature range -452° F to 1,200° F (-269° C to +650° C), higher compression strength and higher shear strength, radiation resistance and higher oxidation resistance Diameter is 17 microns Fiber lengths are available in 12 mm, 18 mm and 24 mm / .47", .70", .94" Various sizings are available for compatibility with a wide range of resins, concrete, and water-based adhesives Fibers are completely resistant to the effects of the alkali in concrete, and require no special coatings for concrete use Fibers resist cold down to -260 degrees F, and heat up to 1,500 degrees F Fibers do not conduct electricity or induce electrical fields Fibers do not absorb or wick water into reinforced structures Fibers significantly improves the shock resistance of concrete Ductility index of basalt fiber reinforced concrete increases by a factor of 2~4. The addition of basalt fiber can effectively increase the compressive strength, splitting the tensile and flexural strength (especially splitting tensile and flexural strength) of the concrete; values of 9.9%, 37.5% and 44.2% are attained Crack impact cycle number of the concrete improves by 60%~ 170%, the impact energy improves by 90%~ 260%. ## Features - Diameter is 17 microns. - Regular concrete mix dosage: We recommend 6-8 pounds of basalt chopped fibers per cubic yard of concrete. - GFRC concrete mix Fiber content varies but is generally approximately 3% to 7% of the cementitious material weight or 1% to 3% by total concrete weight. Increased fiber content adds strength but decreases workability. Common water to cement ratios used from 0.25 to 0.35. (25-35% by cementitious material weight) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07F41CVFD | | Best Sellers Rank | #597,891 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #210 in Concrete | | Brand Name | GlobMarble | | Customer Reviews | 4.6 4.6 out of 5 stars (28) | | Grade Rating | Commercial | | Item Diameter | 17 Micron | | Item Form | Sheet | | Item Shape | Rectangular | | Item Weight | 16 ounces | | Manufacturer | GlobMarble | | Material | basalt | | Model Number | BCF-12 | | Number of Items | 1 | | Part Number | BCF-12 | | Specification Met | True | ## Product Details - **Brand:** GlobMarble - **Item Diameter:** 17 Micron - **Item Form:** Sheet - **Material:** basalt - **Shape:** Rectangular ## Images ![Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length - Image 1](https://m.media-amazon.com/images/I/81KmXngvHoL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length - UPTTHOW 6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Fiberglass for Concrete, 3/4" Length,2.5 Lb, AR-Glass Chopped Strand Fiberglass for Concrete Cement Mortar Reinforcement --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb](https://www.desertcart.us/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-05*