Considering The Crack Resistance Of Cement Stabilized Materials With The Design Method

Many engineering experience demonstrate that in order to elevate subbase working properties, lower project investment, prolong pavement using life-span and raise synthetical benefic,. We must take account of crack resistance when doing mixture design. After systematic and scientific determination and analysis of temperature contraction property, Aridity contraction property and strength index, the thesis have chosen the best grade limits in which crack resistance and compressive strength are high. This conclusion is based upon standard抯 grade limits of cement stabilizing crushed stones subbase. Because the best grade limits does not vary with material property, firstly, we can confine material grade to the best grade limits when doing subbase mixture design, secondly, after systematic temperature contraction test, aridity contraction test and compressive strength correction test, we can determine the best cement percentage which has the best crack resistance property. This is the cement stabilizing material grade design method which has taken account of crack resistance property.