AN APPLICATION OF ULTRASOUNDS TO ASSESSMENT OF HARMFUL SALTS ACCUMULATION IN THE BODY OF TRADITIONAL CERAMICS

Abstract eng:
The long-term utilisation of the ceramic bricks in different conditions, particularly in the presence of moisture, induces the progressive changes, which over time can initiate a gradual loss of performance. This process is related to, inter alia, the collection in the texture of ceramic bricks the salts, derived from the external environment, which may crystallize in the pores of the material. Furthermore, they can form corrosion products in the reaction with the components of the shard. The presence of both enables the loss of performance of the material. Therefore, the studies were undertaken aimed at determining the ability of the various salts to accumulate in the shard of an ordinary ceramic bricks. The accumulation was evaluated on the basis of the mass change and measurements of the ultrasonic pulse velocity.

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