Drymix Ultra
Liquid crystalline admixture for integral waterproofing of concrete
Drykos® Drymix Ultra is a water-based liquid chemical admixture with crystalline action designed for integral waterproofing of concrete and to enhance its long-term durability.
The latter depends significantly on the microstructural properties of concrete, such as porosity and pore size,
through which aggressive chemical agents that cause degradation can penetrate.
The active chemical components of Drykos® Drymix Ultra react with moisture and cement hydration by-products present in pores and capillaries, forming an insoluble crystalline complex that becomes an integral part of the cement matrix and acts as a waterproof barrier against water penetration from any direction.
Concrete treated with Drykos® Drymix Ultra also has self-healing properties: in the presence of water or moisture, the crystallization process reactivates over time, contributing to the closure of microcracks up to approximately 0.5 mm, further improving the durability of the structure.
Drykos® Drymix Ultra is compatible with all cements conforming to UNI EN 197 standard and with the main admixtures and additions commonly used in concrete production. Thanks to its application versatility, the product can be effectively used in ready-mixed concrete and precast applications.
Features
DRYKOS® Technology
Drykos® crystallizing technology is distinguished by its efficiency through a chemical reaction with moisture and the by-products of cement hydration. This process generates, within the pores, capillaries, and cavities of the concrete, an insoluble crystalline complex that prevents water penetration. This complex becomes an integral part of the concrete mass, ensuring its resistance to water and aggressive chemical agents from any direction, promoting restoration and protection, imparting waterproof properties, and increasing its durability and service life.
Certifications
EN 934-2
POTABLE WATER
EN ISO 14025
EN 15804
Main features
- Integral waterproofing of the concrete mass
- Formation of insoluble crystals that seal capillary porosity
- Significant reduction in concrete permeability
- Self-healing action with crack closure up to approximately 0.5 mm
- Waterproofing from any direction (positive and negative pressure)
- High resistance to hydrostatic pressures
- Improvement of concrete durability
- Resistance to chemically aggressive environments with pH between 3 and 11
- Compatibility with main concrete admixtures
- Does not modify the rheological characteristics of fresh concrete
- Suitable for applications in contact with drinking water
- Possibility of automated dosing in batching plants to ensure product traceability
Fields of application
- Foundations and underground structures
- Multi-story car parks
- Concrete slabs and roofs
- Tanks and reservoirs for water containment
- Water treatment plants
- Swimming pools and water basins
- Marine structures and port works
- Submerged structural elements
- Tunnels, galleries, and underground pipelines
- Bridges, viaducts, and dams
Green Technology & Leed
The product has a verified Environmental Product Declaration (EPD), compliant with ISO 14025 and EN 15804 standards. It contributes to credits in LEED v4/v4.1 sustainability protocols, specifically the MR credit – Building Product Disclosure and Optimization (EPD), supporting the achievement of up to 2 total points. The product is also consistent with the requirements of the Minimum Environmental Criteria (CAM) for construction, promoting environmental transparency of materials and use in sustainable public procurement.
Technical specifications
Packaging
Color
Colorless.
Appearance
Liquid.
Storage
12 months from production date.
Storage conditions
Store correctly in the original, sealed, intact packaging, protected from moisture and direct exposure to sunlight, at temperatures between +5°C and +35°C.
Application data
Theoretical consumption
1 L per 100 kg of binder
Yield
Depending on the cement dosage per m3 of concrete.
Diluent
Water.
Application temperatures (substrate and environment)
Minimum +4°C | Maximum +40°C
Application info
Application
Drykos® Drymix Ultra must be added to concrete during the mixing phase in the quantities specified by the design.
The product can be introduced directly into the concrete mixer truck or into the batching plant pre-mixer. In general, it is recommended to add Drykos® Drymix Ultra, as with other admixtures, in the final portion of the mixing water.
The admixture can be added using automatic dosing systems connected to the batching plant or through manual dosing devices, always ensuring an adequate mixing phase to guarantee uniform distribution of the product in the concrete.
In the case of dosing directly on site, Drykos® Drymix Ultra must be poured into the loading chute of the concrete mixer truck while it is rotating and subsequently mixed for 7–10 minutes at maximum speed.
The recommended dosage is 1 liter of product per 100 kg of binder contained in the concrete.
Cleaning of tools
Tools are cleaned with water immediately after use.
Other indications
- The setting times of concrete treated with Drykos® Drymix Ultra may be influenced by various factors related to the mixture composition and conditions of use, such as the type of cement used, the nature and particle size distribution of aggregates, ambient and concrete temperature, as well as the specific characteristics of the mix design
- It is advisable to perform preliminary qualification tests, especially when introducing new mix designs or starting new productions, in order to confirm system performance under specific conditions of use
- Conditions of use: during the mixing of the product with the concrete, the temperature must be above +4°C.
- Drykos® Drymix Ultra is not suitable for sealing dynamic cracks or cracks subject to structural movements
- Fresh concrete must be placed in accordance with the workability times specified for the mixture and must be subjected to adequate compaction and curing
- For anything not covered, contact Technical Support at +39 0171 1874992 or write to [email protected]
Technical performance
Environment and safety
Safety
For information and advice on safety, handling, storage, and disposal, users of the product must refer to the most recent version of the Safety Data Sheet, which provides information on the physical, ecological, and toxicological characteristics of the product. If necessary, request the updated Safety Data Sheet by contacting Customer Service at +39 0171 1874992 or writing to [email protected].
Product compliant with the requirements of Regulation (EC) No. 1907/2006 (REACH) and Annex XVII, entry 47, and subsequent amendments and additions.
Use
Product for professional use.