Sidhya® Rheo Crete 990 AW
Anti Washout admixture for underwater cementitious application.
Description
Sidhya® Rheo Crete 990 AW is a unique product which is designed for underwater applications. The product increases the cohesiveness of the cementitious system and prevents cement particles from washing away during underwater concrete and grouting applications. Sidhya® Rheo Crete 990 AW modifies the rheology of the cementitious system and develops a highly dense, viscous and cohesive mix. The product promotes high compressive strength and reduction in concrete bleeding during SCC application.
Applications
Sidhya® Rheo Crete 990 AW is an anti-wash admixture designed for high workable concrete and grout systems during underwater applications. The product improves the fresh concrete properties and prevents cement particles to wash away and hence can be used for the below applications:
- Production of Self Compacting Concrete.
- Production of high-quality grout for underwater application.
- Production of high-quality concrete for underwater applications.
- Promotes reduction in bleeding and can be used for long haul concrete.
- Promotes high durability requirements.
- Improves the placement of concrete in tremie operations.
- Can be used in concrete applications in foundation rock layers in high water table.
Mixing
Sidhya® Rheo Crete 990 AW should be added to the fresh concrete after all the mix ingredients has been added to mix. Addition of Sidhya® Rheo Crete 990 AW into concrete too early can lead to clumping and gelling of mix. It is recommended to use high shear mixers and blend for two minutes. Insufficient mixing may lead to bleeding and segregation
Technical Specifications
Color
Appearance
State
Specific Gravity
pH
Chloride Ion Content
Alkali content
Shell Life
Yellowish
Homogenous
Liquid
1.00 ± 0.02 @ 20°C
Minimum 6.0
<0.10%
<1.5 g Na2O equivalent / liter of admixture
12 months from the date of manufacturing if stored as per recommendations and original sealed packing.
Advantages
Sidhya® Rheo Crete 990 AW is an Anti Washout admixture which improves the concrete rheology and prevents cement particles washing out and hence provides the following advantages:
- Reduces the segregation and bleeding problems by improving cohesion.
- Eliminates the need of dewatering of underwater construction sites.
- Concrete can be easily placed by Tremie operation.
- Segregation and dilution of cementitious reduces during high ground level applications.
- Improvement in workability and retention time.
- Improvement in cohesiveness of concrete.
- Improves the durability of concrete.
- Decreases the water permeability significantly.
- As the product prevents cement loss, hence enhances compressive strength of concrete.
Dosage
The recommended dosage of Sidhya® Rheo Crete 990 AW should be between 1.0 % to 8.0%
by weight of cementitious. Effects of over dosage can delay the setting time and lead to
gelling of concrete/grout properties.
The optimum dosage of the Sidhya® Rheo Crete 990 AW should be determined by preliminary
trials at site. The dosages above recommendations can be used if agreed by the client and
consultant for special applications along with consultation of Sidhya® technical team
Compatibility
Sidhya® Rheo Crete 990 AW is compatible with all types of cement and binders such as GGBS, Ultra Fine GGBS, Micro silica, Fly ash and Metakaolin. Sidhya® Rheo Crete 990 AW when using along with other Sidhya® products should be added separately and must not be blended prior to addition.
Technical Compliances
Sidhya® Rheo Crete 990 AW conforms to the requirements of IS 9103: 2007, ASTM C494 & BS EN 934-2.
Storage
Sidhya® Rheo Crete 990 AW has a shell life of 12 months provided the temperature is kept between +1.00C to +50.00C. Please contact Sidhya® technical team if the product falls outside the temperature range.
Packaging
Sidhya® Rheo Crete 990 AW is available in 200 liters drums, 1000 litres IBC and bulk tanker. Please contact our Sales Representative for customized packing and more details
Legal Notice
The recommendations related to the application and recommendations are given in good faith based on Sidhya’s current experience and knowledge of the products. The benefits stated about the product are only applicable if guidelines provided by Sidhya for storing, handling and mixing are followed under normal conditions. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product is always advised to test the product’s compatibility and suitability for the intended requirements and application. Sidhya reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned copies of which will be supplied on request.
Sustainability, Health and Safety
End use of the product must read the Material Safety Data Sheet (MSDS) of the product. The MSDS provides information and advice on storage, handling and disposal of the product and instructions related to physical ecological, toxicological and other safety related data.
Get In Touch With Us
Feel free to reach out to us for any inquiries, feedback, or assistance. Our team is here to help you with all your needs and ensure you have a seamless experience with us.
