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Set retarder for concrete

WinFlow PR 36 (Retarder Admixture for Concrete)


It is a liquid set retarder used for concrete. WinFlow PR 36 is a chloride-free plasticizing retarder based on ligno sulfonate that controls cement hydration. It is a dark brown colored liquid and complies with type B as per ASTM C494 standards.

  • Reduces rate of cement hydration process
  • Improves workabilityn
  • Increase durability
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    Set Retarding Chemical Admixtures


    If you're working in the construction industry, you know that time is of the essence. When it comes to concrete, the setting time is crucial. That's where a set retarder for concrete comes in.
    A set retarder is a chemical additive that slows down the setting time of concrete. This can be extremely useful in situations where you need more time to work with the concrete or when the conditions are not ideal for a rapid setting. They barely plasticize and have little impact on the concrete's other characteristics or water requirements. In addition to delaying cement setting, retarding plasticizing admixtures are effective water-saving plasticizers. This sort of retarder makes up the majority of those on the market. They are used to boost initial workability, postpone setting time, and provide the concrete retention of workability.

    Effects of Retarder Chemical Admixture


    The effects of retarding concrete admixtures can be beneficial or detrimental, depending on the application and usage. Some of them include:

  • Extended working time: The main purpose of set retarders is to extend the working time of concrete, allowing the workers more time to place, finish and cure the concrete.
  • Improved workability: The extended working time also improves the workability of the concrete, making it easier to manipulate and place in challenging locations.
  • Increased air entrainment: Retarding admixtures can increase air entrainment in the concrete, improving its freeze-thaw durability.
  • Reduced setting rate: Set retarders slow down the setting rate of concrete, which can be beneficial in hot weather conditions where the rapid setting can be a problem.
  • Reduced strength development: However, extended working time and reduced setting rate can also lead to reduced strength development if the concrete is not properly cured.
  • Increased water requirement: The increased working time and reduced setting rate can also result in an increased water requirement, which can affect the concrete's final strength and durability.
  • Increased segregation and bleeding: In some cases, set retarders can also cause increased segregation and bleeding, which can lead to surface defects and reduced quality.

    • WinChem is a leading manufacturer of construction chemicals and we offer a top-quality set retarding concrete admixture. Our product is easy to use and helps extend the workability time of concrete, giving you more time to finish the job without sacrificing the final strength and durability of the concrete. Our concrete retarder admixture is formulated with high-quality ingredients that are safe and non-toxic. It is compatible with a wide range of concrete mixes and is suitable for use in a variety of construction projects, including residential, commercial, and industrial structures.

    If you're looking for a reliable solution for delayed setting time, look no further. Contact us today to learn more about our set retarder for concrete and how it can help you complete your next construction project with ease.