Study on water saturated softening and energy dissipation characteristics of lean concrete with rolled desert sand
In order to study the physical and mechanical characteristics of rolled desert sand lean concrete after water saturation soften-ing,water saturation softening tests under different mix proportions were carried out.The results show that(1)The mass water absorption is about from 10%to 22%,and the volume water absorption is about from 18%to 40%;(2)After saturated softening,the compressive strength decreases about from 50%to 60%,so the softening coefficient is about from 0.4 to 0.5;(3)The dissipated energy coefficient of the test block increases with the increase of cement content,while the ductility coefficient is on the contrary,compared with dry,both of them decrease slightly after water saturation.
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