Test Research Of The Mechanics Characteristic Of Recycled Aggregate Concrete Under Recurrent Load

Recyeled aggregate concrete is made from recycle aggregate after sevral discard passes, such as breakage, miscellaneous, grade and so on. Now recyeled aggregate concrete has been applicated in unbearing structure in industry and civil project, highway road surface project. The application of recyeled aggregate concrete can not only solve the environmental pollution the concrete brings, but also can economize natural reggerate resource . It can bring us social benifit, economic benefits and environmental benifit.With the application of recyeled aggregate concrete in enginerring, some scholars begin to study the mechanics characteristics of recyeled aggregate concrete.The research on mechanics characteristics rule of distortion and damnification do not see ever. This project is main to reserch the mechanics characteristics, rule of distortion under static load , rule of distortion, mechanism of damnification and breakage under recurrent load . We make tests on the RSM numerical control muti-function servo test machine for this project. While making the experiments on the mechanics of recyeled aggregate concrete, We have tested the ultrasonic spread parameter of recyeled aggregate concrete , In order to get the rule of distortion under static load , rule of distortion, mechanism of damnification and breakage under static load and recurret load. The major content of these experiments and research are as follows:(1) Test on recyeled aggregate concrete under static load : We carry out whole stress-strain experiment of recyeled aggregate concrete after made some diffrent replace rate and diffrent moisture content recyeled aggregate concretet blocks. We have tested the spread parameter of ultrasonic during the test. In order to research the mechanics characteristics rule of the development of distortion and the rule of spread of ultrasonic.(2) Test on recyeled aggregate concrete under recurrent load : In order to research the mechanics characteristics, rule of distortion, mechanism of damnification and breakage under recurrent load , We have carried out the experiments under different frequency load and different waveform role load . We research the mechanics characteristics of recyeled aggregate concrete under the same amplitude and multi-amplitude recurrent load ,and research the load moudle and release moudle of the recycled regenerate concrete under recurrent load. We have tested the spread parameter of ultrasonic during the tests, in order to research the mechanics charecteristics under recurret load. We alaysise the fatigue-life property of recycled regenerate concrete under recurrent load by tests.