Study on Exterior Wall Insulation Design of Prefabricated Precast Concrete Composite Wallboard
In order to improve the insulation effect of prefabricated precast concrete composite wall panel,this paper takes a residential build-ing as an example,analyzes the exterior wall insulation design scheme of prefabricated precast concrete composite wall panel,the thermal bridge treatment of rigid joints,the insulation strengthening of joints and the waterproof design of external wall insulation,and evaluates the wa-terproof effect and insulation effect of prefabricated precast concrete composite wall panel.The results show that the indoor wall temperature of all monitoring points is higher than the atmospheric temperature,and the fluctuation of indoor wall temperature is much smaller than that of out-door,which indicates that the prefabricated building structure has a good temperature storage effect.The heat flux fluctuation state of each mo-nitoring point is consistent,and the maximum difference of heat flux between each monitoring point is 0.92 W/m2.Prefabricated precast con-crete composite wall panel has good thermal insulation and waterproof effect.
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