摘要
通过对再生混凝土在不同温度和时间下的灼烧和不同的冷却方式,研究各因素对再生混凝土强度的影响,采用C40再生混凝土配合比进行试验。研究发现,再生混凝土加热温度越高,强度下降越明显;加热时间越长,强度下降越明显,但短时间高温后再生混凝土强度不降反升;喷水冷却时再生混凝土的抗压强度低于自然冷却。
Based on recycled concrete under different temperature and time of burn and different cooling ways, this paper studies the effect of various factors on the strength of recycled concrete. The C40 recycled concrete is used for mix proportion experiment. It is found that the strength of recycled concrete reduce with heating temperature and heating time increasing, while the strength will increase after instantaneous high temperature, and the compress strength of recycled concrete under water cooling is less than that of nature cooling.
出处
《施工技术》
CAS
北大核心
2015年第15期48-50,55,共4页
Construction Technology
基金
太原市城建科研项目:外墙外保温系统技术性能研究(并建管字[2008]392号
并财城[2008]332号)
关键词
混凝土
再生混凝土
高温
抗压强度
冷却
concrete
recycled concrete
high temperature
compressive strength
cooling
