The molecular layer between infrastructure and time.
GCTI is the trademark and patent owner of TUSQ® and Concrete & Asphalt Advanced Modification Technology — a family of engineered additives that re-engineer how the world's roads, runways and structures resist wear, water and time.
Engineered in the lab. Proven on the road.
Glass Ceramic Technologies International Ltd (GCTI) is a privately held intellectual-property and technology-licensing company. We hold the registered TUSQ® trademarks and the patents covering Concrete & Asphalt Advanced Modification Technology (CAAMT).
Our additives are engineered at the molecular level to integrate with cementitious and bituminous binders — increasing tensile strength, dramatically reducing permeability, and extending the service life of paved and structural surfaces.
We license CAAMT and TUSQ®-branded products to qualified producers, contractors and government agencies worldwide.
TUSQ® — a registered mark for engineered durability.
TUSQ® is the consumer-facing identity for GCTI's portfolio of glass-ceramic and binder-modification products. The mark signals a verified formulation, validated performance data, and protected supply chain.
Use of the TUSQ® mark is restricted to licensed producers and distributors operating under GCTI quality agreements. Unauthorised use of the mark or close imitations is actively monitored and enforced.
- Registered trademark — multi-jurisdiction
- Licensed-only product identification
- Quality assurance under GCTI specification
- Active brand-protection programme
Concrete & Asphalt Advanced Modification Technology.
CAAMT is a patented system of additives and dosing protocols developed by GCTI. It alters the binder chemistry of concrete and asphalt at the molecular scale, producing measurable, repeatable gains in strength, impermeability and service life.
Concrete Modification
Pozzolanic and glass-ceramic micro-fillers densify the cement matrix, blocking capillary porosity and dramatically improving freeze-thaw and chemical resistance.
Asphalt Modification
Engineered binders increase rutting resistance at high temperature and crack resistance at low temperature, extending pavement life under heavy traffic.
Surface Integration
CAAMT additives are dosed into standard plant equipment — no specialist machinery, no change to placement workflows.
A defended portfolio of trademarks and patents.
Patents
Granted and pending patents covering CAAMT formulations, dosing methods, and integration processes across multiple jurisdictions.
Trademarks
TUSQ® and associated word and device marks registered for chemical additives, construction materials, and licensed services.
Licensing
Commercial, regional and project-specific licenses available to qualified producers, contractors and public agencies.
Built for the surfaces that carry the world.
Highways & Motorways
Long-life pavements with reduced rutting and cracking.
Airport Runways
Fuel-resistant binders engineered for heavy aircraft loading.
Bridges & Decks
Low-permeability concrete protecting embedded reinforcement.
Ports & Industrial Slabs
Abrasion-resistant surfaces under continuous heavy load.
Precast Elements
Higher early strength and tighter dimensional tolerance.
Repair & Overlay
Bonded overlays restoring structural and surface performance.
Licensing, technical and brand enquiries.
Whether you're a producer interested in becoming a licensed manufacturer, a contractor evaluating CAAMT for a project, or a public agency seeking specification support — our team will route your enquiry to the right specialist.