Abstract
Foam ceramic insulation and decoration integrated boards have attracted considerable attention from researchers. In order to evaluate the impact resistance and aging performance of the ceramic boards under hail weather conditions, natural frequency tests, coefficient-of-restitution trials, free falling ball experiments and artificial aging measurements were carried out in this work. The experimental results revealed that impact-induced pits easily occurred at the foamed ceramic board, but without proceeding to fracture. In turn, the ceramic plates under impact exhibited four different failure modes which varied with the area of debonding. The impact resistance of the thin board fixed to the base wall by the adhesive layer has greatly increased, even surpassing that of the thick board, which was caused by the synergistic effect between the base wall and the insulation board. The insulation system was broken as the ratio of the diameter of the impact crater to the thickness of the board approached 77%. In addition, the aging degree of the impact resistance of the ceramic board could be measured in terms of the coefficient of restitution or the diameter of the impact crater, and the hygrothermal cycles had a significant negative effect on the impact resistance of ceramic boards.
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