氧化石墨烯掺量对再生骨料砂浆抗冻性影响的试验研究

Experimental Study on Influence of Graphene Oxide Content on Frost Resistance of Recycled Aggregate Mortar

利用掺加纳米材料提高再生骨料水泥基材料的物理力学性能具有重要的理论意义和工程应用价值。文章通过室内试验,探讨了氧化石墨烯掺量对再生骨料砂浆抗冻性能的影响。试验结果显示,在再生骨料砂浆中添加一定量的氧化石墨烯,对提升砂浆的抗冻融性能较为有利。结合抗冻性能试验结果和工程经济性,建议在再生骨料砂浆中掺加0.02%的氧化石墨烯。

It has important theoretical significance and engineering application value to improve the physical and mechanical properties of recycled aggregate cement-based materials through mixing nano materials.The influence of graphene oxide(GO)content on frost resistance of recycled aggregate mortar is studied by laboratory tests in the paper.The test results show that a certain amount of GO is mixed to the recycled aggregate mortar,which is beneficial to improve the freeze-thaw resistance of the mortar.The frost resistance test results and engineering economy are combined.It is suggested to add 0.02%GO into recycled aggregate mortar.