6in Unbonded Capping Neoprene Pad Cap, 70 Durometer (12/Pk)

6in Unbonded Capping Neoprene Pad Cap, 70 Durometer (12 Pack)

Compression Testing of Concrete Cylinders: Neoprene Pads Overview

For accurate compression testing of concrete cylinders, two 6in Unbonded Capping Neoprene Pads are required. These pads ensure uniform load distribution by filling surface irregularities at the cylinder ends during testing. They are essential for maintaining compliance with industry standards such as ASTM C1231/1231M and AASHTO T 22.

Key Features of 6in Neoprene Pads:

• Specifically designed for 6x12in concrete cylinders.
• Available durometers: 50, 60, and 70.
• Thickness: 0.5in (12.7mm).
• Reusable up to 100 times under proper conditions.
• Compatible with 6in Steel Retainer Sets, which are sold separately and required to secure the pads at both ends of the cylinder.

Choosing the Right Neoprene Pad:

Compression pads are available in various hardness levels (measured by durometer) to handle different concrete strengths:

• 50 Durometer: For concrete strengths between 1,500-6,000 psi (10-40 MPa).
• 60 Durometer: For concrete strengths between 2,500-7,000 psi (17-50 MPa).
• 70 Durometer: Ideal for concrete strengths between 4,000-7,000 psi (28-50 MPa). With user qualification testing, 70 durometer pads can also handle strengths up to 12,000 psi (80 MPa).

Advantages of Neoprene Pads:

• Provide a consistent and reliable alternative to traditional sulfur capping methods.
• Greatly reduce the time and mess associated with other capping techniques.
• Ensure proper distribution of stress while compressing the cylinder, leading to more accurate test results.

Applications of 70 Durometer Pads:

The 6in 70 Durometer Pads are particularly useful for testing higher-strength concrete. They are suitable for standard testing within 4,000-7,000 psi and can be qualified by users for high-strength concrete up to 12,000 psi, making them versatile for a wide range of applications.

Standards Compliance:

Neoprene Pad Caps are tested and meet the following test method standards:

• ASTM C1231/1231M: Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders.
• AASHTO T 22: Standard Method of Test for Compressive Strength of Cylindrical Concrete Specimens.

Packaging Options:

Neoprene pads are sold individually or in packs of 12 to meet varying quantity needs.

Additional Accessories:

To complete your setup, a 6in Steel Retainer Set is required. These retainers securely hold the Neoprene Pads in place during testing, ensuring consistent and accurate results.

Why Use Neoprene Pads for Compression Testing?

Neoprene pads are an efficient, reusable, and cost-effective solution for high-precision concrete strength testing. Their ability to accommodate surface irregularities and their compliance with testing standards make them a trusted option for laboratories and construction sites worldwide.