Novel testing method and comparative evaluation on anti swelling rate of clay stabilizer
The most commonly used evaluation method for clay stabilizers in laboratories is the centrifugal method.During the experiment,it was found that the centrifugal method is prone to significant errors in reading the expansion volume of bentonite.The regression of different groups was poor.Based on the centrifugal method,a quality method is developed to evaluate the anti swelling ability of clay stabilizers.This method measures the weight of the upper layer of clear liquid in the centrifuge tube after centrifugation,and then uses a formu-la to calculate the volume of bentonite expansion.Through experimental verification,it is found that compared with the centrifugal method,the quality method has the advantages of simple operation,high accuracy,and less human factors.Using the quality method to mea-sure the anti swelling rate of three types and seven types of clay stabilizers,it was found that there is a strong logarithmic relationship between the concentration of clay stabilizers and the anti swelling rate.
万方数据
维普
