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Rappass

Rappass is Minova’s high‑performance sprayed cement and concrete system for heavy‑impact zones, delivering rapid strength, low rebound and superior abrasion resistance

Product Benefits

Faster strength gain shortens shutdowns and lifts production in critical headings
Durable linings cut maintenance cycles and reduce unplanned rehabilitation
Low rebound saves material, shortens clean‑ups and improves site hygiene
Wet and dry options slot into existing crews, pumps and spraying equipment
Practical pot life profiles support steady placement and quality finishes

Sectors

Metal & Non-Metal Mining, Coal Mining

Applications

Lining Ore Passes, Lining Crushers & Chutes, Lining Draw Passes

Product Details

Rappass is Minova’s high‑strength, impact‑resistant sprayed cement and concrete range for demanding underground areas, including ore pass lining, outfalls, spill ways, draw points, crushers and chutes. It delivers rapid strength, superior abrasion performance and low rebound to keep crews productive and sites cleaner. We offer flexible configurations to suit your equipment and schedule: Rappass C as a flowing concrete mix, Rappass G for shotcrete in GW (wet) or GD (dry) formats, and Rappass CF for time‑critical tasks. The formulation is de‑dusted, non‑caustic and chloride‑free for safer handling and cleaner application. Rappass is supplied in 20 kg bags or 1.2 T bulk bags with a 12‑month shelf life, supporting dependable supply across projects

Product Features

Rapid‑strength, impact‑tough shotcrete for ore passes

Rapid early strength accelerates re‑entry windows

Rappass develops very high early compressive strength, enabling faster turnarounds in critical areas like ore passes and draw points

Outstanding abrasion resistance extends lining life

Independent Chaplin disc tests show ~0.17 mm loss at 28 days, helping surfaces withstand continuous rock flow and fines

Impact‑tough mix protects high‑energy transfer points

Typical impact testing recorded ~3.18% weight loss at 28 days, improving durability in chutes, crushers and loading zones

Low rebound, de‑dusted formulation reduces waste

Designed to minimise rebound and airborne dust for cleaner sites, better utilisation and less clean‑up

Wet and dry shotcrete options fit your fleet

Apply as wet‑spray (GW) or dry‑spray (GD), so crews can work with existing equipment and preferred processes

Product variants & Applications

Rappass C/GW

A flowing, high‑strength concrete mix that delivers rapid early strength and abrasion resistance with a typical two‑hour pot life at twenty degrees

Rappass GD

A dry‑process shotcrete blend engineered for fast‑acting strength and impact resistance, offering a typical twenty‑minute pot life at twenty degrees

Rappass CF

A time‑critical, rapid‑setting formulation that provides high early strength and durability with a typical thirty‑minute pot life at twenty degrees

Technical Specifications