ASTM C1825-19 PDF Download

The ASTM C1825-19 standard provides guidance for the development of ASTM unit specifications for nontraditional masonry units. The purpose of this guide is to ensure that the performance of these units is measured effectively using appropriate materials and processes.

The standard emphasizes that ASTM specifications are intended for a class of products that can be produced by multiple manufacturers, rather than proprietary products specific to a single brand. This ensures fair competition and establishes performance standards for the entire class of masonry units.

However, it is important to note that this guide does not cover all considerations for nontraditional masonry units or address the intrinsic properties commonly associated with traditional masonry units. Traditional masonry units possess characteristics such as strength, fire resistance, durability, and thermal and acoustical attributes, which may not be specifically evaluated through testing for specification compliance.

While nontraditional masonry units may meet the physical property requirements of existing ASTM unit specifications, this does not guarantee their performance. Compliance with existing unit specifications does not necessarily apply to nontraditional units, as these standards are designed for units produced with specific materials and processes.