As the second webinar dedicated to this topic, this session will explain that with the absence of a published ASTM test method for accelerated weathering of dimension stone, leading researchers and laboratories in the country have created some consensus with respect to the methodology and protocols appropriate for this procedure. Different synthesized exposures appropriate for different application environments will be explained in detail. Methods for tracking and assessment of strength loss, mass loss, and surface degradation during exposure will be discussed and demonstrated. Guidance on the interpretation of the results will provide valuable insight in applying those results to your specific project.

Learning Objectives

• Understand the benefits and uses of accelerated weathering testing
• Learn how to balance the cost of the testing against the benefit of the data produced
• Discover the importance of control groups, mid-procedure tracking, and post test data comparisons
• Become familiar with the progress, status, and anticipation of publishing an ASTM procedure for accelerated weathering of dimension stone.

This course has been approved for CEU credit through the following organizations:

• AIA         NSI-T03OD, 1 LU|HSW
• IDCEC:   NSI-T03OD, 1.0 HSW PDH