Study on the preparation and performance of solid waste base phase change light aggregate concrete
It could bring significant social,economic and environmental benefits to study solid waste-based phase change lightweight ag-gregate concrete.It would be great significance for the sustainable development of construction industry.The plastic expansion agent and the hydrogen peroxide were used as foaming agents to prepare foam concrete,which was crushed into lightweight aggregate.The phase change lightweight aggregate was made by adsorbing liquid paraffin in vacuum condition which phase change temperature was 28 ℃.Then the sol-id waste-based phase change lightweight aggregate concrete was prepared to test and analyze mechanical and thermal properties.It indicat-ed that the plastic expansion agent was better than the hydrogen peroxide to prepare the foam concrete.The dosage of plastic expansion a-gent should be kept within 3.0％.The brick slag powder could enhance its 28 d compressive strength,reduce its unit weight,and increase the adsorption of paraffin.The water binder ratio of phase change lightweight aggregate was higher,the thermal performance of solid waste based phase change lightweight aggregate concrete was better,its mechanical performance was worse.The dosage of plastic expansion a-gent should not be too high.The thermal performance of solid waste based phase change lightweight aggregate concrete would not be nec-essarily improved for its volume weight reducing.
万方数据
维普
