Home Concrete Sustainable Concrete Solutions Complex Aggregates (Circular Economy) Quad® Quad® 909 Concrete Quad® 909 Mid-Range Water Reducing Admixture Download or Add Documents. Technical Data Sheet Declaration Of Performances Safety Data Sheet Description Quad® 909 is a new‑generation mid‑range water‑reducing plasticiser incorporating advanced Quad® CLEAR Technology. Developed through hybrid polymer technology and the latest molecular synthesis expertise, Quad® 909 provides enhanced consistence retention and reliable performance. It is specifically formulated for mixes containing aggregates contaminated with high levels of clay or silt, manufactured sands, and crushed fines, helping reduce cement demand while maintaining performance. Quad® 909 also remains robust against variations in cement chemistry, ensuring consistent behaviour across diverse materials. Quad® 909 offers a wide dosage range and supports a broad spectrum of concretes, including low W/C ratio mixes, high workability mixes, and mixes requiring slump class increases without additional water or cement. Application areas Aggregates with high clay or silt content High‑fineness gradings Manufactured sands High‑consistence concrete Ready‑mix concrete Reinforced concrete Pumped concrete Compatibility with Cements Compatible with all cement types Compatible with PFA (Pulverised Fuel Ash) Compatible with GGBS (Ground Granulated Blast Furnace Slag) Contact Technical Department for special cement systems Benefits Enables use of highly contaminated aggregates Robust performance with variable cement chemistry Supports cement optimisation without strength loss Improved consistence retention Enhanced concrete rheology Improved compaction Increased concrete strength Suitable for a wide range of applications Versatile dosage range Packaging Container of 1000L 215 L Barrel Bulk delivery on request