![]() Water permeability measurements obtained in the laboratory can be used to characterize unweathered, untreated masonry. The test can be performed on-site or in the laboratory and can be used to measure vertical or horizontal water transport. RILEM Test Method II.4 provides a simple means for measuring the rate at which water moves through porous materials such as masonry. II.4, designed to measure the quantity of water absorbed by the surface of a masonry material over a definite period of time. The standard tests drafted by Commission 25-PEM fall within several categories, including methods for detecting the presence and movement of water (II.), for determining internal cohesion (III.), and for measuring mechanical surface properties (IV.). One such technical committee, Commission 25-PEM, has developed tests to measure the deterioration of stone and to assess the effectiveness of treatment methods. As with our American Society for Testing and Materials (ASTM), Technical Committees are formed within RILEM to develop standard methods for measuring properties and evaluating the performance and durability of many different building materials. RILEM (Reunion Internationale des Laboratoires D'essais et de Recherches sur les Materiaux et les Constructions), with headquarters in Paris, is the International Union of Testing and Research Laboratories for Materials and Structures. ![]()
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