Cementitious Binder Compositions

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention provides improved cementitious binder compositions that contain cement, calcium sulfoaluminate, gypsum, and one or more polyvinyl alcohols. The addition of polyvinyl alcohol to these binders allows for reduced use of cement (especially Portland cement), while still achieving rapid setting and high strength in building products. Uniquely, these compositions do not rely on lithium-based accelerators, helping to control the formation of ettringite and prevent undesirable expansion in the dried product.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing of tile adhesives for floors and walls (e.g., for ceramics, natural stone)
• Formulation of leveling compounds and self-leveling screeds for floors
• Production of wall and floor fillers, joint-fillers, and grouts
• Exterior and interior plasters, skim coats, or surface coatings on buildings
• Rapid-hardening mortars where quick attainment of mechanical strength is required
• Environment-friendly construction materials with reduced carbon footprint

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces the required amount of energy-intensive Portland cement, cutting both costs and CO₂ emissions
• Efficiently controls ettringite formation, thereby minimizing expansion and cracking in building materials
• Achieves desired early and final strength in mortars and concretes without lithium-based accelerators, reducing dependence on scarce lithium salts
• Enables fast construction with swift readiness for further work (e.g., tiling, finishing), increasing jobsite productivity
• Offers broad flexibility: can be used for adhesives, coatings, screeds, and plasters with customizable mechanical properties
• Provides higher sulfate resistance in end products, boosting durability in aggressive environments

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to cementitious binder compositions that contain cement, calcium sulfoaluminate and gypsum, characterized by containing one or more polyvinyl alcohols.