CHRYSO®Quad

Admixtures for Complex Aggregates for Circular Economy and Sustainable Concrete

Optimising Local and Recovered Aggregates for High-Performance, Sustainable Concrete

The CHRYSO®Quad range promotes a circular economy approach by enabling the use of locally sourced or recycled aggregates in concrete production without compromising technical performance. By integrating complex sands and materials recovered from demolition sites, CHRYSO®Quad helps concrete producers optimise local resources, reduce supply costs, and lower the carbon footprint of construction projects.

With CHRYSO®Quad, concrete manufacturers can maintain workability, rheology, and productivity while accommodating a wider variety of aggregate types, including those with varying fines, sand shapes, and swelling clays. Paired with innovative tools such as CHRYSO®Clear Test and the CHRYSO®Quad Lab App, the range ensures concrete producers can quickly identify the most suitable admixture solutions for their specific materials, supporting consistent quality and sustainable outcomes.

Circular Economy

Optimised Performance

Advanced Testing

Cost & Resource Efficiency

Complex Aggregates: Impact on Concrete Performance and Workability

Lack of Fines

  • Reduces compactness → increases porosity

  • Affects rheology → can cause bleeding and pumpability issues

Excess Fines

  • Raises water and admixture demand

  • Challenges rheology → reduces pumpability and workability

  • Increases mixing time → impacts productivity

Sand Shape

  • Influences water and admixture requirements

  • Affects rheology, workability, and retention

  • Can increase mixing time → impacts productivity

Swelling Clays

  • Raises water and admixture demand

  • Impacts rheology and workability retention

  • Can increase mixing time → affects productivity

Resources & Support

Analysis of your sands

With CHRYSO®Clear Test, a unique, patented tool developed by Chryso, we can quickly detect the presence of swelling clays in sands. The test can be conducted either on-site or in a laboratory, providing immediate and precise results.

CHRYSO®Quad App

Chryso has developed the CHRYSO®Quad Lab App, a new application designed to analyze alternative supply sources near your concrete production site and identify the most suitable admixture solution.

Step Into the Sustainable Loop of the Circular Economy

Discover how adopting a circular economy approach — using locally sourced or recycled aggregates from deconstruction projects — can transform your concrete production and advance sustainable construction.

Watch the video to see how the CHRYSO®Quad range and our expert services help optimise production costs while maintaining high-quality, high-performance concrete even when working with complex aggregates.

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Products

Complex Aggregates (Circular Economy)

CHRYSO® QUAD 560

CHRYSO® Quad 560 is a new generation water reducing plasticiser incorporating CHRYSO innovative Quad GRAFT Technology. This admixture results from our expertise in hybrid polymer technology using our most recent knowledge of the synthesis of molecules.   CHRYSO® Quad 560 has been specifically formulated to provide rheology improvement in mixes containing manufactured sands, and crushed fine aggregate. It will also perform well with gap-graded aggregates and marine sands. This can lead to cement reductions and open up opportunities for previously unusable aggregates. CHRYSO® Quad 560 has great flexibility with a large dosage range. It can be used in a great range of concretes, including low water cement ratio mixes, or to allow an increase in slump class without requiring additional cement.   CHRYSO® Quad 560 can be used to produce high workability concretes without additional increase in mix water content.
Complex Aggregates (Circular Economy)

CHRYSO® QUAD 420

CHRYSO® Quad 420 is a new generation set water reducing plasticiser incorporating CHRYSO’s innovation, Quad technology. This admixture results from our expertise in hybrid polymer technology. This chemistry required our most recent knowledge of the synthesis of molecules to provide: a wide dosage range a high-water reduction slump retention homogeneous concrete CHRYSO® Quad 420 is particularly suited for ready-mix concrete manufactured with high water demand aggregates.   CHRYSO® Quad 420 can be used in conjunction with other CHRYSO® ranges including CHRYSO® Air, CHRYSO® Omega and CHRYSO® Optima.  
Complex Aggregates (Circular Economy)

CHRYSO® QUAD 890

CHRYSO® Quad 890 is a new generation mid-range water reducing plasticiser incorporating CHRYSO innovative Quad CLEAR Technology. This admixture results from our expertise in hybrid polymer technology using our most recent knowledge of the synthesis of molecules.   CHRYSO® Quad 890 has been specifically formulated to provide admixture efficiency in mixes containing aggregates contaminated with high levels of clay or silt, manufactured sands, and crushed fine aggregate leading to cement reductions.  This can also open opportunities for previously unusable materials. The product is also robust to changes in cement chemistry.   CHRYSO® Quad 890 has great flexibility with a large dosage range. It can be used in a great range of concretes, including low water cement ratio mixes, or to allow an increase in slump class without requiring additional cement, or high workability concretes without additional increase in mix water content.
Complex Aggregates (Circular Economy)

CHRYSO® Quad 930

CHRYSO® Quad 930 is a new generation high-range water reducing superplasticiser incorporating CHRYSO innovative CLEAR Technology. This admixture results from our expertise in hybrid polymer technology using our most recent knowledge of the synthesis of molecules.   CHRYSO® Quad 930 has been specifically formulated to be used effectively in mixes containing clay and silt contaminated aggregates, and also finely graded aggregate leading to cement reductions. This can also open opportunities for previously unusable materials. CHRYSO® Quad 930 can be used to produce high workability concretes without additional increase in mix water content. It can be used in a great range of concretes, including low water cement ratio mixes, or to allow an increase in slump class without requiring additional cement. 

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