Outline of the NDIS 3440 Standard: Non-destructive Testing of Concrete－Water Penetration Resistance Test

Key Points

• The report introduces the NDIS 3440 standard for non-destructive testing of concrete, focusing on water penetration resistance tests.
• Describes the 2023 NDIS 3440 standard developed by the Japan Non-Destructive Testing Association.
• Outlines four parts of the standard, including general principles and three distinct testing methods.
• Details how tests are conducted completely non-destructively at the site.
• Identifies the unique purposes, tools, and procedures associated with each of the three testing methods.
• Discusses the background and overview of the standard development.
• Highlights key considerations for applying each testing method.