FB400

FB400 is Minova’s proven family of high‑strength, thixotropic anchoring grouts engineered for top‑down cable bolting, long tendon grouting and consolidation in hard and soft rock. Each variant is supplied as a ready‑to‑use, free‑flowing blended cementitious powder requiring only water and a high‑shear mixer, delivering consistent quality underground. All three formulations – FB400, FB400C and FB400+ commbine rapid early strength with a non‑shrink expansion system that helps ensure complete annulus contact and durable long‑term performance. Typical compressive strengths (28 days) range up to 85 MPa depending on mix water and product. FB400+ is designed for long‑distance placement and is pumpable to 100 metres, unlocking remote headings without frequent pump relocations. FB400C adds a migrating corrosion inhibitor for enhanced protection in aggressive groundwater while retaining the same high‑performance rheology. At a practical level, the range offers a generous 120‑minute pumping life with a typical set time of 420 minutes and predictable yields of approximately 15 litres per 20 kg bag, supporting safe, controlled installations.