FAQs

Abresist Fused Cast Basalt is mineral-based and has high compressive strength but relatively low tensile strength and high brittleness. Raw coal lumps before the mill have large particle sizes (up to 50mm) that drop with high kinetic energy. Under direct vertical dynamic impacts, brittle basalt tiles will shatter immediately. For raw coal chutes, monolithic Kalcret or tough Hardox 500 TUF plates are recommended.

Yes. GAC engineered, supplied, and installed a 20mm-thick Abresist Fused Cast Basalt-lined bottom ash pipeline system at Uông Bí Thermal Power Plant in 2006. During an on-site field inspection conducted after 12 years of continuous, uninterrupted operation, the basalt-lined pipe spools remained perfectly smooth, flat, and showed zero signs of erosion or bục-thủng (rupture).

Abresist Fused Cast Basalt achieves a high hardness of 8 Mohs. Its key engineering advantage in bottom ash lines is its absolute chemical inertness against acidic or alkaline recycled transport water. Furthermore, its centrifugally cast glass-smooth interior reduces pipeline friction loss, eliminates internal rust scaling, and extends pipeline wear life to over 12 years.

Kalcret BTX incorporates premium silicon carbide (SiC) aggregates, specifically formulated to resist high-velocity, high-kinetic fine particle erosion up to 1,200°C. Kalcret CTX incorporates synthetic corundum aggregates, designed to withstand heavy sliding abrasion under high pressure up to 1,400°C. For pulverized coal lines and electrostatic precipitator (ESP) cyclones, Kalcret BTX is the optimal technical choice.

Pulverized coal mixtures navigate pneumatic pipelines at high operating velocities ranging from 25 to 35 m/s. When passing through directional change elbows, centrifugal forces concentrate the highly abrasive coal particles directly against the outer radius of the elbow wall. This intense aerodynamic erosion rate scales exponentially with air velocity (V3 to V5), causing standard carbon steel lines to wear thin and blowout rapidly.

GAC backs its turnkey Tivar 88-2 recessed-stud lining projects with a formal 24-to-36-month performance warranty. GAC guarantees continuous, blockage-free material flow with no bridging or sticking throughout the warranty period.

100% of the mechanical weld studs welded to the steel casing are tested via hammer-strike testing using a copper hammer to verify the weld integrity and detect any air bubbles or poor fusion. Once the welds pass inspection, GAC applies Kalfix epoxy and seals the cavities with ceramic plugs.

For Chinfon Cement, GAC implemented a combined wear-protection design: installing tough, high-impact Hardox 500 plates on sloping walls exposed to direct limestone impact, paired with chemical-resistant coatings in wet, cohesive material collection zones.

Rapid-setting wear mortars are prone to rapid surface water loss, which triggers shrinkage micro-cracks across the lining. Spraying Kalcure seals surface moisture, ensuring uniform hydration throughout the casting thickness, which prevents micro-cracking and ensures full compressive strength is reached within 24-48 hours.

Kalcret BTX utilizes silicon carbide aggregates, designed for temperatures up to 1.200°C and optimized for pneumatic dust erosion (e.g., coal pipes, preheater cyclones). Kalcret CTX utilizes synthetic corundum aggregates, designed for temperatures up to 1.400°C and optimized for heavy sliding wear (e.g., clinker chutes, kiln discharge zones).

GAC lines the interior of steel pipelines with centrifugally cast Abresist Fused Cast Basalt pipes (20-30mm thick). Abresist is fully chemically inert against acidic and alkaline wastewater while its permanently glass-smooth surface minimizes flow friction, extending pipeline wear life to over 12 years.