Is field water addition or reconditioning allowed for heat-setting refractories?

Heat-setting refractories are designed to undergo a specific curing process when subjected to heat following installation. The integrity and performance of these refractories are influenced by the physical and chemical properties of the materials used in their formulation. Adding water to these refractories in the field is not allowed because it can compromise their properties, leading to issues such as reduced strength, improper setting, and potential failure during service.

In heat-setting refractories, water disrupts the complex interaction between the components during the setting process, which is crucial for achieving the desired performance characteristics. The curing is intended to occur under controlled conditions, and any deviations, such as unauthorized water addition, may hinder the effectiveness of the chemical reactions involved.

Thus, disallowing any additional water in the field ensures that the refractories achieve their designed performance and longevity without compromising their structural integrity.