BS ISO 19993:2020 - Timber Structures. Glued Laminated Timber. Face and Edge Joint Cleavage Test

Discover the essential standard for ensuring the quality and reliability of glued laminated timber structures with the BS ISO 19993:2020. This comprehensive document provides detailed guidelines and testing methods for evaluating the face and edge joint cleavage of glued laminated timber, a critical component in modern timber construction.

Overview

The BS ISO 19993:2020 standard is a pivotal resource for professionals in the timber construction industry. Released on April 16, 2020, this standard is designed to ensure that glued laminated timber structures meet the highest quality and safety standards. With a total of 14 pages, it offers a concise yet thorough examination of the necessary procedures and criteria for testing the cleavage of face and edge joints in timber structures.

Key Features

• Standard Number: BS ISO 19993:2020
• ISBN: 978 0 539 01041 1
• Status: Standard
• Pages: 14
• Release Date: April 16, 2020

Importance of Glued Laminated Timber

Glued laminated timber, often referred to as glulam, is a highly versatile and sustainable building material. It is created by bonding together individual layers of timber with durable, moisture-resistant adhesives. This process results in a strong, stable, and aesthetically pleasing material that is widely used in a variety of structural applications, from residential homes to large commercial buildings.

The use of glulam offers several advantages, including:

• Strength and Durability: Glulam is known for its exceptional strength-to-weight ratio, making it an ideal choice for load-bearing structures.
• Design Flexibility: The ability to create curved and complex shapes allows architects and engineers to explore innovative design possibilities.
• Sustainability: As a renewable resource, timber is an environmentally friendly building material that contributes to sustainable construction practices.

Testing Face and Edge Joint Cleavage

The face and edge joint cleavage test is a critical procedure for assessing the integrity and performance of glued laminated timber. This test evaluates the strength and durability of the adhesive bonds between the timber layers, ensuring that the material can withstand the stresses and loads it will encounter in real-world applications.

The BS ISO 19993:2020 standard provides a detailed methodology for conducting these tests, including:

• Preparation of Test Specimens: Guidelines for selecting and preparing the timber samples to ensure accurate and consistent results.
• Testing Procedures: Step-by-step instructions for performing the cleavage test, including the application of loads and measurement of results.
• Evaluation Criteria: Criteria for assessing the performance of the adhesive bonds, including acceptable limits for joint separation and failure.

Who Should Use This Standard?

The BS ISO 19993:2020 standard is an invaluable resource for a wide range of professionals involved in the design, construction, and inspection of timber structures. This includes:

• Architects and Engineers: Professionals responsible for designing safe and innovative timber structures.
• Construction Companies: Firms involved in the construction and assembly of timber buildings.
• Quality Control Inspectors: Individuals tasked with ensuring that timber products meet industry standards and regulations.
• Timber Manufacturers: Companies producing glued laminated timber products for use in construction projects.

Conclusion

The BS ISO 19993:2020 standard is an essential tool for anyone involved in the timber construction industry. By providing clear and comprehensive guidelines for testing the face and edge joint cleavage of glued laminated timber, this standard helps ensure the safety, reliability, and longevity of timber structures. Whether you are an architect, engineer, or quality control inspector, this standard will equip you with the knowledge and tools needed to achieve excellence in timber construction.

Invest in the BS ISO 19993:2020 standard today and take a significant step towards enhancing the quality and performance of your timber projects.

BS ISO 19993:2020

This standard BS ISO 19993:2020 Timber structures. Glued laminated timber. Face and edge joint cleavage test is classified in these ICS categories:

• 91.080.20 Timber structures

This document specifies methods of evaluating the effectiveness of glued laminated timber face and edge bonds within a manufacturing plant by cleaving of the glue line in both dry and wet conditions. It is not intended that it be used for initial type testing where cyclic delamination or block shear is preferred. It is based on the principle that, provided minimum wood failure percentages are met, then the bond strength exceeds the perpendicular to the grain tension strength of the under-lying substrate and therefore the bond is not the weak element limiting the integrity of a glulam assembly.