Pigments Powder for Concrete and Mortar

Manufacturer of High-Stability Concrete Colorants

Deqing Demi Pigment Technology Co., Ltd. provides a range of synthetic iron oxide pigments designed for the demanding environment of ready-mix concrete and site-mixed mortars. Our expertise in inorganic chemistry allows us to produce powders that maintain color integrity under various curing conditions, including steam curing and ambient air drying. We understand that for mortar and concrete applications, reliability and ease of use are paramount, and our production standards reflect these requirements.

Mortar and Concrete Applications

• Ready-Mix Concrete: For large-scale infrastructure and residential slabs.
• Pointing Mortars: Decorative joints for stone and brickwork.
• Stamped Concrete: Surface coloration for decorative walkways and patios.
• Self-Leveling Screeds: Integral coloring for industrial and commercial floors.

Concrete and Mortar Technical Table

Operational Features for Wet Mixes

• Rapid Dispersion: Particles break down quickly under the shear forces of standard concrete mixers.
• Chemical Neutrality: No reaction with fly ash, silica fume, or other common concrete admixtures.
• High Concentration: Strong tinctorial power reduces the total amount of powder required per cubic meter.
• Weather Durability: Resists the leaching effects of rain and the abrasive action of wind and dust.

• Q: Can these pigments be added directly to the truck mixer?

  A: Yes, provided the mixing time is sufficient (typically 5-10 minutes at high speed) to ensure the powder is fully distributed throughout the load.

• Q: Do these pigments work with air-entrained concrete?

  A: These inorganic iron oxides are non-reactive and do not interfere with the stability of air-void systems in freeze-thaw resistant concrete.

Precision Batching and Technical Support

Our factory utilizes automated batching systems to ensure that every delivery matches the technical specifications of the previous batch. This is critical for multi-phase construction projects where color matching between different concrete pours is required.

Technical Consulting: We offer guidance on mixing sequences and dosage calculations to ensure that the user achieves the intended color result while maintaining the specified water-to-cement ratio.

Dispersion Science in Mineral Slurries

Achieving uniform color in concrete requires overcoming the surface tension of the water-solid interface. Our pigments are engineered with specific particle morphologies that promote wetting. We use laser diffraction particle size analysis to ensure a narrow distribution curve. This prevents the formation of "dead zones" where pigment fails to disperse, ensuring that the L* (lightness) and C* (chroma) values are uniform across the entire cross-section of the concrete or mortar element.