aggregate stability as affected by polyacrylamide molecular

aggregate stability as affected by polyacrylamide molecular
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  • Does adding anionic polyacrylamide improve soil aggregation?
  • Adding anionic polyacrylamide (PAM) to soils stabilizes existing aggregates and improves bonding between and aggregation of soil particles. However, the dependence of PAM efficacy as an aggregate stabilizing agent with soils having different clay mineralogy has not been studied.
  • How does polyacrylamide stabilize soil?
  • The addition of polymer to the soil stabilizes existing aggregates and strengthens the mutual binding of adjacent particles. The stabilizing efficiency of polyacrylamide is mainly determined by the adsorption of its macromolecules on the surface of soil particles .
  • Can polyacrylamide be used as a soil conditioner?
  • The favorable effects of the environmentally friendly, nontoxic, anionic polyacrylamide (PAM) as a soil conditioner have long been established. Some uncertainties exist, however, regarding the effects of PAM molecular weight (MW) on its performance as a soil amendment and its ability to penetrate into aggregates and stabilize interior surfaces.
  • What is the stability of aggregates in soil?
  • The stability of aggregates (SR = 0.61–0.78) in these soils is often associated with the presence of Fe and/or Al-oxides ( 43; 15; 16; 20 ).