Methods of test for masonry units - Part 14: Determination of moisture movement of aggregate concrete and manufactured stone masonry units

This technical specification defines the procedure for measuring the variation in moisture content of masonry units manufactured from aggregate concrete and artificial stone. It establishes a standardized methodology essential for evaluating the hygrothermal properties of these building materials under controlled conditions. The document outlines the necessary equipment, sample preparation techniques, and the step-by-step process for determining moisture changes over specific time intervals. By providing a consistent framework, this document enables manufacturers, testing laboratories, and construction professionals to obtain comparable results across different locations. The scope focuses specifically on units where the material composition involves aggregates bound within a concrete matrix or manufactured from artificial stone products. Detailed instructions are provided regarding the conditioning of specimens prior to testing and the subsequent handling required to ensure measurement accuracy. This approach supports quality control assessments and facilitates the verification of material performance against established technical requirements. The methodology addresses the specific characteristics of aggregate-based and artificial stone units, distinguishing them from other masonry materials. Adherence to this procedure ensures that data related to moisture absorption and release is generated reliably for engineering and safety evaluations.