Construction chemicals primarily comprise three major categories: architectural coatings, adhesives/sealants, and concrete additives. These materials are widely utilized in modern construction to enhance construction efficiency, structural performance, and durability.
1. Architectural Coatings
These are the most widely used and highest-volume category, primarily including:
Interior Wall Coatings: Used for the decoration and protection of interior wall surfaces.
Exterior Wall Coatings: Possess weather resistance to protect a building's facade.
Floor Coatings: Enhance floor abrasion resistance, slip resistance, and aesthetic appeal.
Waterproofing Coatings: Used in leak-prone areas such as roofs and bathrooms.
Anti-corrosion Coatings: Protect steel structures and concrete from corrosion.
Anti-graffiti Coatings: Facilitate the easy removal of graffiti; often used on public facilities.
2. Adhesives and Sealants
Used for bonding materials and sealing gaps; classified as follows:
Structural Adhesives: Used in load-bearing applications, such as curtain wall installation and bridge reinforcement.
Non-structural Adhesives: Used in non-load-bearing applications, such as flooring and wallpaper installation.
Common Types: Silicone, acrylics, polyurethanes, epoxy resins, etc.
3. Concrete Additives (Admixtures)
Typically added in quantities not exceeding 5% of the cement's weight, yet they significantly improve concrete performance. Their primary functional classifications are as follows:
Improving Workability: Water reducers, air-entraining agents, pumping aids.
Regulating Setting and Hardening: Retarders, early-strength agents, accelerators.
Enhancing Durability: Waterproofing agents, corrosion inhibitors, air-entraining agents.
Enhancing Other Properties: Expansion agents, antifreeze agents, coloring agents.
