Study on the Performance and Effect Evaluation of Improved Expansive Soil of Solid Waste Reuse
In relation to the engineering of the Jingzhou Chengbei Expressway crossing the expansive soil development area,the improvement effect of cement,lime,and construction waste on the expansive soil was analyzed through indoor and on-site tests.The results show that the optimal moisture content of improved soil is positively correlated with the amount of cement and lime added,and negatively correlated with the amount of construction waste added;Cement,lime,and construction waste can significantly improve the CBR value and unconfined compressive strength of improved expansive soil,with the largest increase in cement improved soil;Through on-site experiments,three improved materials can significantly reduce the soil sample expansion rate.Based on the practical results of the applications,key technical parameters such as loose paving coefficient,paving thickness,and compaction process for different improvement measures have been confirmed.
expansive soilmodification and improvementmixing ratioquality controleconomy
万方数据
维普
