Through unconfined compressive strength test of soil-sand-cement in laboratory

its development rules in different sand contents and different curing ages are studied. The experimental results indicate that the mixing with a certain amount of sand can significantly increase the strength of cement-soil under a certain cement content condition. When the cement content is 10%

the sand content is 50% reaching maximum strength. And according to the measured stress-strain curves

through detailed analysis of the soil-sand-cement failure modes

it is brittle shearing damage. Moreover

with the increasing amount of sand content

the shear angle of the soil-sand-cement admixture increases gradually. At the same time

the reasons for unconfined compressive strength of soil-sand-cement admixture growth are analyzed from different viewpoints

so as to provide test data and theoretical basis for the practical application of engineering