The Asphalt Mixture Uniaxial Penetration Indenter Head is a key loading component used for penetration testing of asphalt mixtures. It is designed to apply concentrated load under controlled conditions to evaluate the high-temperature stability and deformation resistance of asphalt mixtures, providing essential data for mix design, quality control, and performance assessment in highway, bridge, and airport pavement engineering.

Asphalt Mixture Uniaxial Penetration Indenter Head

Model:TD746-JA

I. Product Overview

This indenter is used for the uniaxial penetration test of asphalt mixtures and serves as a key loading component for determining the penetration strength of asphalt mixtures. By applying a concentrated load to the specimen under specified conditions, it simulates actual traffic loading and is used to ev aluate the high-temperature stability and deformation resistance of asphalt mixtures. The product is suitable for performance verification during mix design as well as quality inspection after construction. It can be used for both laboratory-molded specimens and field core samples.

The indenter is designed for standard cylindrical specimens with diameters of 100 mm or 150 mm and a height of 100 mm. Two specifications are available, including a large indenter and a small indenter, to meet different testing requirements. The product complies with the requirements of JTG D50-2017.

II. Technical Parameters

1.Indenter hardness: HRC 10–30

2.Upper indenter size: 50 × 50 × 10 mm

3.Lower indenter size:

(1) Large indenter: φ42 × 50 mm

(2) Small indenter: φ28.5 × 50 mm

III. Product Features

1. Reasonable structural design ensures stable loading and effectively guarantees the accuracy and repeatability of test results.

2. Manufactured using high-quality materials, possessing excellent wear resistance and deformation resistance, resulting in a long service life.

3. High-precision surface machining of the indenter ensures uniform contact with the specimen, reducing errors caused by localized stress concentration.

4. Available in large and small indenter sizes to meet the requirements of different specimen sizes and testing standards.

5. Compatible with various asphalt testing machines, offering strong compatibility and can be used as a standard laboratory component or as a replacement accessory.

6. Suitable for both laboratory testing and on-site engineering testing, with a wide range of applications.

IV. Application Areas

Asphalt mixture mix design experiments;

High-temperature stability testing of road engineering projects;

Quality testing of highway, airport, and bridge engineering projects;

Laboratory material performance research and teaching experiments;

On-site core sample testing in engineering projects.