--- product_id: 173283353 title: "Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47\") Length" brand: "globmarble" price: "¥6339" currency: JPY in_stock: true category: "Glob Marble" url: https://www.desertcart.jp/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb store_origin: JP region: Japan --- # 12 mm fiber length for optimal concrete integration 17 micron diameter for ultra-fine reinforcement 6-8 lbs per cubic yard dosage for peak strength Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length **Brand:** globmarble **Price:** ¥6339 **Availability:** ✅ In Stock ## Summary > 🛠️ Reinforce your concrete with the future-proof power of basalt fibers! ## 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?** ¥6339 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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 - • **Unmatched Durability:** Boost tensile, compressive & flexural strength by up to 44%—concrete that lasts and performs. - • **Alkali & Corrosion Proof:** No special coatings needed—resists acid, salt, and alkaline attacks for long-term structural integrity. - • **Enhanced Crack Resistance:** Improves crack impact cycles by up to 170%, dramatically reducing maintenance and repair costs. - • **Extreme Temperature Resilience:** Operates flawlessly from -452°F to 1,200°F, perfect for any climate or industrial application. - • **Non-Conductive & Water-Resistant:** Fibers don’t absorb water or conduct electricity, ensuring safer, more reliable concrete structures. ## Overview GlobMarble’s Basalt Chopped Fibers are ultra-fine (17 microns) basalt strands, 12 mm in length, designed to integrate seamlessly into concrete mixes at 6-8 lbs per cubic yard. These fibers significantly enhance tensile, compressive, and flexural strength while resisting extreme temperatures (-452°F to 1,200°F), alkali, acid, and salt damage. Ideal for commercial-grade concrete reinforcement, they improve crack resistance by up to 170% and boost impact energy absorption by up to 260%, making them a cutting-edge solution for durable, long-lasting concrete applications. ## 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 | #732,905 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #272 in Concrete | | Brand Name | GlobMarble | | Color | brown | | Customer Reviews | 4.6 4.6 out of 5 stars (27) | | Grade Rating | Commercial | | Item Diameter | 17 micrometer | | 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 | | Unit Count | 16 Ounce | ## Product Details - **Brand:** GlobMarble - **Color:** brown - **Item Diameter:** 17 micrometer - **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) ![Basalt Chopped Fibers for Concrete, GFRC Chopped Strands 1 LB. Concrete Fibers. 12 mm (.47") Length - Image 2](https://m.media-amazon.com/images/I/51UgL43jCXL.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.jp/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb](https://www.desertcart.jp/products/173283353-basalt-chopped-fibers-for-concrete-gfrc-chopped-strands-1-lb) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-26*