建筑固废对GRC性能影响研究  

Study on the Influence of Construction Waste on the Performance of Glass Fiber Reinforced Cement

作　　者：项斌峰 张利俊 秦宪明 王灵秀 刘佳 赵蔚慈 邱洪华 蔡素燕 

机构地区：[1]中国建材检验认证集团北京天誉有限公司,北京100113

出　　处：《中国建材科技》2018年第3期19-22,共4页China Building Materials Science & Technology

基　　金：北京市通州区科技计划(KJ2017CX038)

摘　　要：本文对建筑固废制备GRC进行了研究,通过物理性能、力学性能和抗冻性三方面对再生GRC进行性能表征,同时探讨了建筑固废的取代掺量对再生GRC各项性能的影响。试验结果如下:采用喷射成型工艺,再生GRC的力学性能在废混凝土10%,废尾矿10%和废砖1%取代掺量下达到最优,而后随着掺量的增加力学性能逐渐降低。建筑固废的掺入对再生GRC的物理性能没有明显影响。25次冻融循环后再生GRC没有发现冻融破坏现象,且质量损失在0.2%以下。The preparation of regeneration GRC using construction waste is studied in this paper.Through physical performance, mechanical property and frost resistance in the face of characterization of regeneration GRC, the effect of dosage replacement of construction waste on the regeneration GRC performance is discussed.The experimental results are as follows： with the use of the injection molding process, the regeneration GRC mechanical properties can be optimal when the waste concrete, tailings, crushed bricks reach 10%,10% and 1%, and then gradually reduce with the increase of dosage replacement.Obvious influence can＇t be noticed in the physical properties of recycled GRC incorporated with construction waste. After 25 freeze-thaw cycles, the phenomenon of freeze-thaw damage cannot be found in regeneration GRC, along with the quality loss less than 0.2%.

关 键 词：建筑固废 GRC 力学性能 物理性能 抗冻性 

分 类 号：TU528.581[建筑科学—建筑技术科学]