Measurement Of Thermal Conductivity Of Corner Pillars And Exterior Wall Column Made Inmortar Recycled Concrete And Thermal Bridge Of Concrete Column

With China's economy growing degree,a steady stream of new buildings into the ground instead of the original building,construction waste generated in the process,the rational use of energy not only to protect the environment more to reduce demand for natural energy.Recycled concrete emerged as a product of more and more people's attention,on the strength characteristics of recycled concrete had a lot of literature research,but in recycled aggregate concrete thermal performance is less research,but also for the practical application of recycled concrete building the specific effects are much rarer.Thermal conductivity of recycled coarse aggregate concrete research this paper,and then applied to the concrete practical engineering,studies the impact of thermal bridge will produce.Firstly,by testing for the thermal conductivity of recycled coarse aggregate concrete were studied.By controlling the concrete is recycled coarse aggregate replacement ratio of thermal conductivity and water content of concrete to measure the influence of replacement ratio and moisture content of the thermal conductivity,and thermal conductivity of the proposed mathematical model to provide a theoretical basis for practical engineering.Secondly,the recycled concrete applied to the building heat loss obvious thermal bridge.Analysis and study of heat transfer law of thermal bridge by CFD software.In this paper,a comparative study of reinforced concrete with recycled concrete in the thermal bridge heat transfer law,taking into account the thermal bridge outside corner,two forms of T-wall thermal bridge and found two forms of heat bridges similar law,and recycled concrete on the wall Effect of body and reinforced concrete similar to provide a basis for the application of recycled concrete.Finally contrast within under different conditions the surface temperature of the insulation,the use of external insulation known manner,the inner surface temperature is less volatile,more conducive to raise the indoor temperature.