Abstract:
Objective This study addresses challenges associated with controlling the thickening time of cement slurries at elevated temperatures (exceeding 120 ℃), including prolonged experimental periods and difficulties in predicting thickening times.
Methods This article explores the factors influencing the thickening time of cement slurries at high temperatures through fitting methods and constructs a predictive model develops a predictive model utilizing grey theory.
Results The findings indicate that the thickening time of cement slurries is primarily influenced by the dosage of retarders, curing conditions, and specific additives, with varying degrees of impact under different conditions. The grey model used to predict the thickening time for the first time exhibits high accuracy and is suitable for small samples.
Conclusion The sensitivity analysis of the factors affecting the thickening time at high temperatures and the establishment of a predictive model significantly reduce the cost of cement slurry thickening experiments and provide a theoretical basis for the formulation of thickening times in high-temperature cement slurries.
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