D1101-97 – Standard Test Method Technical Guide

ASTM D1101 – 97a (Reapproved 2024) specifies accelerated test methods for measuring the resistance to delamination of adhesive joints in structural laminated wood products, also known as glulam, intended for exterior service. The test is designed to evaluate whether the integrity of adhesive joints is adequate for severe service conditions where initial strength tests are insufficient.

📐 Scope and Definitions

These test methods are applicable to structural laminated wood members such as arches and beams. The standard specifically defines glulam as a synonym for structural-glued-laminated timber, an engineered stress-rated product comprising assemblies of specially selected and prepared wood laminations bonded together with adhesives. Many terms in the standard are defined in ASTM D907 (Terminology of Adhesives).

The standard explicitly warns that it does not purport to address all safety concerns and places the responsibility on the user to establish appropriate safety, health, and environmental practices prior to use.

⚙️ Test Method Specifications

The standard includes two distinct test methods, the choice of which depends on the