application of polyacrylamide in cementing in canada

application of polyacrylamide in cementing in canada
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  • Why is polyacrylamide a good polymer for cement hydration?
  • Polyacrylamide polymer possesses a low density of anionic groups, which are conducive to retaining the autogenous shrinkage resistance even during the deceleration period of cement hydration , . Several studies have investigated the interactions between polyacrylamide and cement in the fresh state.
  • Does polyacrylamide affect carbonation behavior of cement pastes?
  • The objective of this work is to study the effect of polyacrylamide on carbonation behaviors of cement pastes when polyacrylamide is used as a viscosity-modifying admixture. Carbonation depth and pH value were measured to determine the carbonation resistance.
  • Does polyacrylamide increase bulk resistance?
  • The consumption of alkaline hydration products in the chemical reaction between cement paste and polyacrylamide results in a decline in the pH value. The EIS results show that polyacrylamide increases the bulk resistance due to the densification of cement pastes and consumption of ions in the pore solution.
  • What is polyacrylamide (PAM) used for?
  • npj Clean Water 1, Article number: 17 ( 2018 ) Cite this article High molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.