Dynamic Modulus Test
GCTS provides three solutions for dynamic modulus testing on asphalt pavement specimens: the AMPT-15, ADM-100, and APT-100.
The Asphalt Mixture Performance Tester (AMPT-15) is a compact, cost-effective system designed for a range of asphalt tests per AASHTO, ASTM, and NCHRP standards. Its mobile cart design and intuitive software enhance efficiency. The system can be upgraded with accessories for comprehensive testing.
The Automated Dynamic Modulus Testing System (ADM-100) is an advanced, high-productivity system capable of generating a complete Master Curve for up to six specimens in under two days. It features an automated rotating table and non-contact optical micrometers within an environmental chamber, eliminating the need for manual adjustments and door openings, thus reducing test time and operator intervention.
The Asphalt Pavement Tester (APT-100) is a versatile, affordable device that performs various asphalt tests including Dynamic Modulus, Resilient Modulus, Beam Fatigue, and Direct Tension. It is modular for easy test setup and includes a dynamic actuator for loads up to 70 Hz. The system’s environmental chamber allows rapid temperature adjustments for multiple specimens, facilitating quicker Master Curve generation and verification.
AMPT-15
HIGHLIGHTS
- 19 kN static load capacity
- 17 dynamic load capacity
- 70 Hz maximum testing frequency
- 50 mm actuator stroke
- -10°C to +70°C temperature control
- 0.2% temperature control accuracy
- 250 kPa confining pressure capacity
- Available accessories to perform the following tests:
- Dynamic modulus
- Flow time
- Flow number
- Resilient modulus
- Beam flexural fatigue
- Indirect tension
- Semi-circular bending
- Texas Overlay
- Direct tension (SVECD)
TRANSDUCER SPECIFICATIONS
- 22 kN load cell
- 345 kPa pressure sensor
- 50 mm actuator LVDT
- ±1 mm displacement sensor
- -50°C to +250°C temperature sensor
ADM-100
HIGHLIGHTS
- Generate full master curve for six specimens in two days
- Non-contact deformation sensors with 0.5 micron repeatability
- 85 kN dynamic load capacity
- 100 kN static load capacity
- 100 mm axial stroke
- 1200 mm vertical opening
- 600 mm horizontal opening
- Temperature control from -15°C to 70°C
APT-100
HIGHLIGHTS
- Economical solution for advanced asphalt testing
- 100 kN static axial load capacity
- 85 kN dynamic axial load capacity
- 70 Hz maximum loading frequency
- 100 mm actuator stroke
- Precise, accurate, quiet and compact
- Temperature control from -15 °C to +60 °C
- Available accessories to perform the following tests:
- Dynamic modulus
- Flow time
- Flow number
- Resilient modulus
- Beam flexural fatigue
- Indirect tension
- Semi-circular bending
- Texas Overlay
- Direct tension (SVECD)
Relevant Standards
AASHTO T 342 Standard Method of Test for Determining Dynamic Modulus of Hot-Mix Asphalt Concrete Mixtures
AASHTO T 378 Determining the Dynamic Modulus and Flow Number for Asphalt Mixtures Using the Asphalt Mixture Performance Tester (AMPT) (formerly TP 79)
AASHTO R 84 Developing Dynamic Modulus Master Curves for Asphalt Mixtures Using the Asphalt Mixture Performance Tester (AMPT) (formerly PP 61)
ASTM D3497 Standard Test Method for Dynamic Modulus of Asphalt Mixtures
EN 12697-25 Bituminous mixtures. Test methods for hot mix asphalt. Cyclic compression test
NCHRP 9-19 Superpave Support and Performance Models Management
NCHRP 9-29 Simple Performance Tester for Superpave Mix Design
