Pavers and block composite materials and methods of preparation thereof

US11225438B2 · kind B2 · utility

Assignee

• SOLIDIA TECHNOLOGIES, INC. · US

Inventors

• Francis Henn · Hackettstown, US
• Deepak Ravikumar · Piscataway, US
• John P. Kuppler · Haddonfield, US
• Kenneth Smith · Flemington, US
• Oguzhan Oflaz · Jersey City, US
• Dawid Zambrzycki · South River, US
• Vahit Atakan · Princeton, US

Key dates

• Filing date: Oct 9, 2019
• Grant date: Jan 18, 2022
• Expiry date: Jan 31, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24355
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention provides novel paving stones and construction block composite materials and methods for preparation thereof. The paving stones and construction block composite materials can be readily produced from widely available, low cost precursor materials by a production process that involves compacting in a mold that is suitable for large-scale production. The precursor materials include calcium silicate, for example, wollastonite, and particulate filler materials which can comprise silicon dioxide-rich materials. Additives can include calcium carbonate-rich and magnesium carbonate-rich materials. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as colorants such as particles of colored materials, such as, and pigments (e.g., black iron oxide, cobalt oxide and chromium oxide). These paving stones and construction block composite materials exhibit visual patterns similar to stone as well as display compressive strength and water absorption equal to or better than that of stone.