Self Consolidating Concrete

The implementation of the latest Sika® ViscoFlow® Technology allows Sika® ViscoCrete®-1000 to extend the slump retention without a negative impact on set time. This is beneficial especially in a hot climate environment when the slump loss of a concrete mixture is more likely to occur. Sika® ViscoCrete®-1000 can be used for the production of SCC as well as for the production of conventional slump concrete.    
High-Range Water Reducing Applications: When used as a high range water reducing admixture, water reduction up to 35 % can be obtained. The superplasticizing action allows for the production of high slump flowing concrete with excellent workability and extended slump retention that can be placed with minimum vibration even at a low water/cement ratio. The dispersing action of Sika® ViscoCrete®-1000 maximizes cement hydration efficiency and improves concrete’s early and long term compressive strengths. Extended slump retention does not have negative effect on setting times. Mid-Range Water Reducing Applications: At a lower dosage, Sika® ViscoCrete®-1000 can be used as a cost effective mid range water reducing admixture or simply as a water reducing admixture for production of conventional slump concrete. When used as a mid range water reducing admixture, water reduction up to 15 % can be obtained. This application is ideal for use with lean, harsh concrete mixes or concrete containing flyash.  Sika® ViscoCrete®-1000 will improve workability and finishability.   
The combined water reducing and superplasticizing action provide the following benefits:

• Higher early and ultimate strengths for cost effective high strength concrete and earlier structural use of concrete.
• Higher early strengths allow faster demolding and more efficient use of forms to precast producers.
• Improved slump retention will extend workability without negative effect on setting time characteristics of the concrete mixture.
• Increased slump improves workability and reduces labor costs.
• Greater concrete density reduces permeability and increases durability.

   
Sika® ViscoCrete®-1000 does not contain calcium chloride or any other intentionally added chlorides and will not initiate or contribute to corrosion on steel reinforcement present in the concrete.  

Water Reduction: Sika® ViscoCrete®-2100 can be dosed in small amounts to obtain water reduction from 10−15 % and will achieve water reduction up to 45 % at high dosage rates. Sika® ViscoCrete®-2100 is suitable for all levels of water reduction. High Plasticity: The superplasticizing action of Sika® ViscoCrete®-2100 provides high-slump, flowing concrete that maintains excellent workability and may be placed with minimal vibration even at very low water cement ratio’s as low as 0.25.
Sika® ViscoCrete®-2100 plasticized concrete is highly fluid while maintaining complete cohesion within the concrete matrix to eliminate excessive bleeding or segregation.  
Extended Slump Life and Set Control: Sika® ViscoCrete®-2100 has been formulated to provide controlled and predictable extended slump life for periods of 60 to 90 minutes with normal set times.  
The combined high range water reduction and superplasticizing action of Sika® ViscoCrete®-2100 provide the following benefits in hardened concrete:   

• Higher ultimate strengths allow for greater engineering design flexibility and structural economies
• Reduced water cement ratios produce more durable, dense concrete with reduced permeability
• Highly effective plasticizer reduces surface defects in concrete elements and improves aesthetic appearance

  
Sika® ViscoCrete®-2100 has been formulated to provide maximum water reduction and extended slump retention at low dosages.

Sika® ViscoCrete®-2110 can be used for all levels of water reduction in various types of concrete ranging from dry cast applications, conventional concrete to SCC (Self Consolidating Concrete). Sika® ViscoCrete®-2110 will deliver water reduction up to 45 %. The special formulation of Sika® ViscoCrete®-2110 increases compressive strength of concrete and helps maintain the plasticity of the concrete over prolonged period of time. Sika® ViscoCrete®-2110 extends concrete workability time during warmer months when slump loss and fast stiffening of the fresh concrete can be a concern. The superplasticizing action of Sika® ViscoCrete®-2110 provides high slump / flowing concrete that be placed with minimal or no vibration even at very low water cementitious ratios, as low as 0.25.      Water Reduction: Sika® ViscoCrete®-2110 can be dosed in small amounts to obtain water reduction from 10–15 %, and will achieve water reduction up to 45 % at high dosage rates. Sika® ViscoCrete®-2110 is suitable for all levels of water reduction.            Plasticizing effect: The superplasticizing action of Sika® ViscoCrete®-2110 provides high slump, flowing concrete that maintains excellent workability and may be placed with minimal vibration even at very low water cementitious ratio’s as low as 0.25. Sika® ViscoCrete®-2110 plasticized concrete is highly fluid while maintaining complete cohesion within the concrete matrix to eliminate excessive bleeding or segregation.     Extended Slump Life and Set Control: Sika® ViscoCrete®-2110 has been formulated to provide controlled and predictable extended slump life for periods of 60 to 90 minutes with normal set times. The combined high range water reduction and superplasticizing action of Sika® ViscoCrete®-2110 provide the following benefits in hardened concrete:

• Higher ultimate strengths allow for greater engineering design flexibility and structural economy
• Reduced water cement ratios produce more durable, dense concrete with reduced permeability
• Highly effective plasticizer reduces surface defects in concrete elements and improves aesthetic appearance

Sika® ViscoCrete®-2110 has been formulated to provide maximum water reduction and extended slump retention throughout entire dosage range.

• Extended slump life
• Increased compressive strength when compared to reference concrete with same w/c ratio
• High early compressive strengths for earlier removal of forms and structural use of concrete
• High ultimate strengths allow for greater engineering design flexibility and structural economies
• Reduced water cement ratios produce more durable, dense concrete with reduced permeability
• Highly effective plasticizer reduces surface defects in concrete elements and improves aesthetic appearance
• Approved by the Ontario Ministry of Transportation
• Approved by the Ministère des Transports du Québec (MTQ)

Water Reduction: Sika® ViscoCrete®-6100 can be dosed in small amounts to obtain water reduction from 10−15 %, and will achieve water reduction up to 45 % at high dosage rates. Sika® ViscoCrete®-6100 is suitable for all levels of water reduction. High Plasticity and Cohesion: The superplasticizing action of Sika® ViscoCrete®-6100 provides high-slump, flowing concrete that maintains excellent workability, and may be placed with minimal or no vibration even at very low water cement ratios as low as 0.25. Sika® ViscoCrete®-6100 maintains excellent cohesion within the concrete matrix, and eliminates excessive bleeding or segregation. The unique plasticizing effect of Sika® ViscoCrete®-6100 provides excellent formed surface finish.   The combined high range water reduction and superplasticizing action of Sika® ViscoCrete®-6100 provide the following benefits in hardened concrete:

• Higher early compressive strengths for earlier removal of forms and structural use of concrete
• Higher ultimate strengths allow for greater engineering design flexibility and structural economies
• Reduced water cement ratios produce more durable, dense concrete with reduced permeability
• Highly effective plasticizer reduces surface defects in concrete elements and improves aesthetic appearance
• Ideal for the production of Self-Consolidating Concrete (SCC)
• Ideal for ready-mix trucks
• Formulated to provide maximum water reduction, increased early strength, improved finishing characteristics, especially when a broom is desired
• Sika® ViscoCrete®-6100 does not contain formaldehyde, calcium chloride or any other intentionally added chlorides, and will not initiate or promote the corrosion of steel present in the concrete

Various levels of water reduction and workability retention can be achieved by adjusting the dosage rate of Sika ViscoFlow®-2020.    At lower dosage rates Sika ViscoFlow®-2020 provides mild to moderate water reduction with some extended workability. At higher dosage rates, or when used in combination with other water reducing admixtures, Sika ViscoFlow®-2020 provides high range water reduction with greater workability retention and the superplasticizing action allows for the production of high slump/flow concrete that can typically be placed with minimal or no vibration even at an extremely low water/cementitious ratio.   Concrete produced with Sika ViscoFlow®-2020 typically maintains consistency and workability for longer periods. The combined water reducing and superplasticizing action of Sika ViscoFlow®-2020 provides the following benefits:    ▪ Reduced water cement ratios produce more durable, dense concrete with reduced permeability and shrinkage, ▪ Consistent and predictable slump life performance, ▪ Reduced concrete stickiness allowing lower pumping pressures,
▪ Improved finishability of concrete, ▪ Increased early and ultimate strengths allow faster structural use of concrete, ▪ Minimal effect on setting times at lower dosage rates, ▪ Increased slump and workability improves efficiency of labor and reduces labor costs,
▪ Minimizes or eliminates the need for concrete retempering.    Sika ViscoFlow®-2020 does not contain intentionally added chlorides.