BS EN 1355:1997 PDF Download

BS EN 1355:1997 is a standard that outlines a testing method for determining the creep strains under compression of autoclaved aerated concrete (AAC) or lightweight aggregate concrete (LWAC) with an open structure. The standard specifies the procedure for subjecting test specimens to constant loading in a compression test machine and recording the development of strain over time.

The purpose of this standard is to provide a standardized method for evaluating the creep behavior of AAC and LWAC under compression. Creep strains, which are the time-dependent deformations that occur under a constant load, are an important factor to consider in the design and assessment of structures made from these types of concrete. By subjecting test specimens to constant loading and measuring the creep strains, the standard helps to determine the long-term structural performance and durability of AAC and LWAC.

The standard outlines the equipment and apparatus required for the testing, including the compression test machine and the devices for measuring strain. It specifies the test conditions, such as the applied load, stress level, and temperature, to ensure uniformity and reproducibility of results. The procedure describes the steps for preparing the test specimens, applying the load, and recording the strain development over the specified duration.