Concrete Admixtures | Construction - Sika South Africa
Sika has been producing high quality, innovative technologies for concrete, beginning with the first product named Sika-1, which is still in the Sika product portfolio today. 20,000 metric tons of Sika concrete admixtures were used in the record-breaking Gotthard base tunnel project. Thanks to Sika’s range of water-reducers for concrete, more than
SikaPlast-410 | Mid Range Water Reducer - Sika South Africa
SikaPlast -410 is a multi-purpose water reducer and plasticizer, utilizing technology unique to the SikaPlast-400 Series range of products. A range of Ready Mixed concrete plasticisers, specifically designed to produce soft concrete rheology with enhanced workability retention and improved wet concrete cohesion.
Sika Water Reducers / Plasticizers | Sika South Africa
Sika South Africa. 9 Hocking Place 3608, Westmead KwaZulu-Natal. Tel.: +27 31 792 6500 E-mail: [email protected]
Sika ViscoFlow-77 | High Water Reducer - Sika South Africa
Dispensing. Sika ViscoFlow 77 is added to the gauging water or added with it into the concrete mixer. To take advantage of the workability enhancing ability, a wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended.
Sika ViscoCrete-150 P | High Range Water Reducer - Sika South Africa
Grouts, non-shrink grouts, repair mortars and tile adhesives based on Portland cement, cement blends and ternary compounds Advantages Sika ViscoCrete-150 P is adsorbed onto the surface of the binder particles and due to repulsive forces from the effect known as steric hindrance, the solid binder particles are very effectively dispersed in the mix.
- How do plasticizers and water reducers affect concrete strength?
- Since the heat of hydration of mass concrete goes down when the cement weight goes down, plasticizers can do this. Plasticizers and water reducers are chemical admixtures used to make concrete more workable. Unless the mixture is “starved” of water, increasing the w/c ratio reduces the concrete’s strength.
- What is concrete plasticizer?
- Concrete plasticizers are added in concrete in amount of 0.1 % to 0.4 % by weight of cement. Addition of these doses reduces 5 to 15% of water requirement in the concrete mix with constant workability. The strength of concrete is a major function of water cement ratio.
- What are plasticizers & water reducers?
- Plasticizers and water reducers are chemical admixtures used to make concrete more workable. Unless the mixture is “starved” of water, increasing the w/c ratio reduces the concrete’s strength. An increase in durability is achieved by decreasing the water content (without “starving” the concrete).
- How do Plasticizers make concrete stronger and last longer?
- Plasticizers make concrete stronger and last longer by reducing the amount of water and cement needed to reach a certain level of workability. Since the heat of hydration of mass concrete goes down when the cement weight goes down, plasticizers can do this. Plasticizers and water reducers are chemical admixtures used to make concrete more workable.
- What is a hydrophilic plasticizer?
- The primary purpose of hydrophilic plasticizers is to improve the concrete’s plastic and flow properties, as evidenced by their increased wet ability. This plasticizer makes a lot of air get into the concrete mix. It is possible to lower the tension of the water in the solution and make the concrete more flexible.
- What is plasticizer used for?
- Plasticizer is a liquid additive used in cement, mortar, and concrete mixes to improve workability, fluidity, and ease of handling. Key uses and benefits include: Improved Workability: Makes mixtures more fluid without increasing the water content, making them easier to pour, spread, and work with.
