AZA 1147 CRACK WIDTH RULER

Description

Crack Width Ruler is an essential diagnostic tool for engineers and inspectors involved in concrete structure evaluation. It enables the precise measurement of cracks on surfaces such as concrete, masonry, plaster, and stucco. This simple yet effective tool is widely used for structural integrity assessment, preventive maintenance, and monitoring crack propagation over time.

Most crack width rulers are made from clear, UV-resistant plastic or polycarbonate and include a printed scale that ranges from 0.1 mm to 7.0 mm (or higher), covering the spectrum of typical surface crack widths encountered in concrete and similar materials.

They are transparent to allow easy placement over the crack without visual distortion and usually feature both metric and imperial units for global compatibility.

 Why Use a Crack Width Ruler?

Surface cracks can reveal vital information about the condition of structural elements. Understanding the width and type of a crack helps in classifying the risk level and determining if remedial action is required. The Crack Width Ruler is a quick-reference field tool that provides standardized measurements without requiring expensive digital instruments.

According to ASTM C823 and BS EN 1504-9, assessing surface crack width is part of routine structural condition evaluations and maintenance planning.

 Key Features & Benefits:

• Range of Precision: Measures crack widths from 0.1 mm to 7.0 mm in fine increments

• Durable Construction: Made from UV-stable, shatter-resistant plastic for long-term use

• Transparent Body: Ensures unobstructed viewing of crack lines on any surface

• Dual Scale (Metric/Imperial): Useful for global projects with varied measurement systems

• Pocket-Sized: Fits easily in a shirt pocket or tool pouch — great for field inspections

• Professional Use: Trusted by civil engineers, surveyors, and construction inspectors

• Cost-Effective: No calibration or power needed — always ready for immediate use

 Specifications:

 Frequently Asked Questions (FAQ):

Q1: What is a Crack Width Ruler used for?
It’s used to measure the width of surface cracks in concrete, masonry, and similar building materials during inspections or maintenance assessments.

Q2: What’s the measurement range?
Most rulers measure crack widths from 0.1 mm up to 7.0 mm, with some models extending further.

Q3: Which standards are referenced for this tool?
Measurement practices align with ASTM C823 and BS EN 1504-9, which govern visual inspection and repair protocols.

Q4: Can it be reused multiple times?
Yes, it is made from durable, transparent material designed for long-term use without fading or wear.

Q5: Does it require calibration?
No calibration or maintenance is required — simply use it as a direct comparison tool on the crack surface.