Cement Retarders

• Petrochem - Low Temperature Retarder Powder & Liquid (P-LTR & P-LTRL) is a powdered and liquid cement retarder for low temperatures up to 200°F in slurries. These oil and gas additives are compatible with commonly used cement. Adding a dispersant with these retarders will have additional retarding effects including adding two hours more to the thickening time of a slurry; Petrochem recommends testing the cement and the combination of other additives with these low-temperature cement retarders with a laboratory prior to the job to make sure the cement slurry preparation is successful. These cement additives for cold weather make it easier to transport or extend the fluid state of cement slurries even within climate conditions. Chemical goggles are required to protect against eye and skin irritation. 

• Petrochem - Medium Temperature Retarder Powder & Liquid (P-MTR & P-MTRL) is a powdered and liquid retarder for medium temperatures ranging from 150°F-300°F in slurries. These cement retarders provide a slight dispersing action in slurries and act as an aid for turbulent flow techniques. Both versions of        P-MTR can be dry blended or added to the mix-water and are both compatible with all API class elements. Thickening times of cement slurries at a given depth and temperature typically vary depending on the brand of cement and should be tested prior to the job at a professional laboratory when using these medium temperature oil well cement retarders. 

• Petrochem - High Temperature Dispersant Powder (P-HTD) is a powdered and liquid dispersant which reacts the best for high temperature cement slurries; but most of its applications are usually added to high density cement systems. This additives has tri-functional benefits including:
  • Reacts to slurries similar of a dispersant
  • Acts as a cement retarder
  • Enhances the effectiveness of most fluid-loss additive
  • Make sure that the concentration of these high temperature cement retarders are portioned correctly because different concentrations can affect the theology, retardation, and fluid loss control of the cement slurry. It is also important to note that the free water should be checked when adding these additives to avoid issues. 

• Petrochem - High Temperature Retarder Powders & Liquid (P-HTR3 / P-HTR4 & P-HTR2L) is a powdered and liquid high temperature cement retarder made for cement slurries that are ranging from 220°F to 400° F temperatures. Businesses should know the differences between these products including:
  • All three additives aid turbulent flow techniques
  • All three should be dispersed within the mix-water
  • All three are compatible with API classes of cement 
  • P-HTR2L is economical than the other two additives because very low concentrations are needed for effective results
  • P-HTR3 & PHTR2L can have a tendency to form in cement systems; which should be combated by using Petrochem’s Antifoam products. 

• Petrochem - Retarder Aid Powder (P-RA) helps to achieve an extended upper range by 25% when using this cement retarder. It can have a slight dispersing action which results in some degree of thinning of the cement slurries. By using agitation, P-RA can be dissolved into a one gallon of P-SRL to achieve better results of a cement slurry. P-RA is an excellent additive to use when pumping operations have to be extended for long periods of time. 

• Petrochem - Synthetic Retarder Liquids (P-SRL & P-SR2L) are liquid synthetic cement retarders that are designed for slurries with different ranges of temperatures and unique situations. Here are some of the differences between these two additives:
  • P-SRL was designed for cement slurries with temperatures up to 300°F
  • P-SR2L is used for cement systems with optimum thickening times from temperatures ranging from 175°F to 400°F.
  • P-SRL needs to be dispersed within water; then is compatible with commonly used cements and additives
  • P-SR2L has a slight dispersing action which results in some thinning of the cement slurries
  • P-SR2L results for cement slurries vary depending on the brand of cement used for the project job. Petrochem recommended designing the slurry in a laboratory to minimize impacts to fluid-loss control.

What are retarders in concrete?

Retarders in concrete are admixtures that are used to slow the rate in which the concrete sets. They slow down the chemical process of water in the mixture. Retarders can be used to counteract the quickening of the concrete setting due to hot weather. Retarders in concrete can be used to slow down the setting time in high temperature weather up to an hour. 

What is the function of a retarder in cement?

Retarders in concrete help to prolong the setting of the concrete. Most retarders can help to lower the amount of water in the concrete. Retarders are commonly used for high temperature conditions. Retarders in concrete decelerate the rate in which the concrete sets. 

Contact a Cement Retarder Professional

At Petrochem, our cement retarders make it easier to transport slurries without worrying about curating too early. Projects in the oilfield industry can get delayed; but your slurries don’t need to be remade just because of the climate conditions are not desirable. Keep your slurries in liquid form for longer so you can get the best results for drilling operations. Contact a concrete additive supplier specialist today to learn how retarders can keep your cement slurries in a fluid state for longer periods of time.