water reducing concrete admixture superplasticizer Switzerland

  • water reducing concrete admixture superplasticizer Switzerland
  • water reducing concrete admixture superplasticizer Switzerland
  • water reducing concrete admixture superplasticizer Switzerland
  • What is superplasticizer in concrete?
  • Superplasticizer in concrete is also known as high performance water reducers or high-range water reducing admixture. Compared with ordinary water reducers, superplasticizers have a higher water reduction rate, which can reach 12%~25%, or even higher. At the same water-cement ratio, superplasticizers greatly improved the workability of concrete.
  • What is the difference between superplasticizers and water reducers?
  • At the same water-cement ratio, superplasticizers greatly improved the workability of concrete. It’s easier to prepare high-flow concrete with a slump of up to 25cm without producing too much air entrainment, and do not cause excessive retarding of concrete, while the slump of concrete mixed with ordinary water reducers is usually around 10cm.
  • What is a superplasticizer & how does it work?
  • Superplasticizer is highly efficient water reducers that provide concrete with high fluidity, water retention, and cohesiveness. Naphthalene-based and polycarboxylic acid-based water reducers are typical representatives. Their main functions include:
  • What is a high range water reducer admixture?
  • Superplasticizers (High Range Water reducer) ASTM C494 Type F and Type G, High Range Water Reducer (HRWR) and retarding admixtures are used to reduce the amount of water by 12% to 30% while maintaining a certain level of consistency and workability (typically from 75 mm to 200 mm) and to increase workability for reduction in w/cm ratio.
  • Can superplasticizers produce high strength concrete?
  • The use of superplasticizers may produce high strength concrete (compressive strength up to 22,000 psi). Superplasticizers can also be utilized in producing flowing concrete used in a heavy reinforced structure with inaccessible areas. Requirement for producing flowing concrete is defined in ASTM C 1017.
  • What are water reducers & retarders?
  • Water reducers, retarders, and superplasticizers are admixtures for concrete, which are added in order to reduce the water content in a mixture or to slow the setting rate of the concrete while retaining the flowing properties of a concrete mixture.

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