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Experimental Research on the Physical and Mechanical Properties of Concrete with Recycled Plastic Aggregates

查看全文 作　　者：Haikuan [1,2]Wu;Changwu [1,2]Liu;Song [1,2]Shi;Kangliang [1,2]Chen 高影响力作者 机构地区：[1]State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu,610065,China;[2]College of Water Resource and Hydropower,Sichuan University,Chengdu,610065,China高影响力机构 出　　处：《Journal of Renewable Materials》索引2020年第8卷第7期,共12页高影响力期刊 摘　　要：In order to study the effect of recycled plastic particles on the physical and mechanical properties of concrete,recycled plastic concrete with 0,3%,5%and 7%content(by weight)was designed.The compressive strength,splitting tensile strength and the change of mass caused by water absorption during curing were measured.The results show that the strength of concrete is increased by adding recycled plastic into concrete.Among them,the compressive strength and the splitting tensile strength of concrete is the best when the plastic content is 5%.With the increase of plastic content,the development speed of early strength slows down.Silane coupling agent plays a positive role in the strength of recycled plastic concrete.The water absorption saturation of concrete has been basically completed in the early stage.The addition of silane coupling agent makes the porosity of concrete reduce and the water absorption of concrete become poor.By summing up the physical and mechanical properties of recycled plastic concrete,it could be found that the addition of recycled plastic was effective for the modification of concrete materials.Under the control of the amount of recycled plastic,the strength of concrete with recycled plastic aggregates can meet the engineering requirements. 关 键 词：Compressive strength recycled plastic concrete splitting tensile strength water absorption mechanical properties
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