Abstract:

Hydration degree and hydration state of claystone havebeen studied quantitatively by stove method , in which stovetime has been determined and the results of isothermal adsorption and thermal weight loss analysis have been compared. Results show that the suitable stove time is 12 hours , and results stove method are identical to that of isothermal adsorption
and thermal weight loss analysis. In addition , the satisfying results have been obtained by using the method to quantitativelydetermine the hydration degree and hydration state of mudstonein ShanshanOTuha Qiketai and to evaluate inhibition ability ofinorganic salts. It is practicable that the stove method can beused to quantitatively determine hydration degree and hydrationstate of claystone.

Key words: claystone, hydration state, quantitative analysis, stove method, evaluation, inhibition