NCAT Asphalt Content Furnace

NCAT Asphalt Content Furnace – Accurate Asphalt Content Analysis Tool

The NCAT Asphalt Content Furnace is a professional-grade testing solution for determining the asphalt content in hot-mix asphalt (HMA) mixtures using the ignition method. As a cornerstone of pavement quality assurance, this furnace helps engineers and technicians verify that asphalt mixtures meet design specifications and performance standards using a rapid and environmentally friendly testing process.

The NCAT furnace is widely used in labs and quality control environments for asphalt content analysis, offering reliable results with minimal operator intervention. Its integrated electronic balance continuously monitors sample weight during the test, saving technician time and increasing throughput.

Explore this advanced testing solution in Certified MTP’s product inventory: NCAT Asphalt Content Furnace.

How the NCAT Asphalt Content Furnace Works

The furnace operates on the ignition method, an industry-accepted approach for asphalt content testing that eliminates the need for hazardous solvent extraction. A sample of the hot-mix asphalt is placed in the furnace chamber, and once the test begins, the internal system heats the sample to high temperatures, burning off the asphalt binder while the embedded electronic balance records weight loss.

Key aspects include:

• Automatic detection of test endpoint based on weight change criteria
• Automatic or manual test modes for operational flexibility
• Automatic compensation for temperature effects on sample and basket assembly
• Large sample capacity (testing up to ~5,000 g of HMA)

Because the ignition method eliminates solvents, it greatly reduces testing costs, handling risks, and waste disposal concerns compared to traditional solvent extraction procedures.

For alternative configurations and accessory options, see the NCAT Ignition Furnace, 240V and the NCAT Ignition Furnace with Accessory Kit, 240V for enhanced field readiness.

Test Procedure and Results

To perform a test:

1. Enter sample weight and calibration details on the furnace interface.
2. Place the sample on the hearth tray inside the furnace chamber.
3. Close the door and start the test. The system runs automatically or under manual oversight depending on operator preference.
4. At endpoint detection, the furnace will stop the test, indicate with a notification, and unlock the chamber door.
5. Results are printed or exported for analysis.

Test results are typically expressed as asphalt content per total HMA weight, with accuracy to approximately ±0.11%—making the NCAT ignition furnace suitable for routine quality control, acceptance testing, and research.

Key Advantages

• Fast testing: Processes samples in 30–45 minutes for typical 1,200–1,800 g specimens.
• Large capacity: Capable of testing up to ~5,000 g, ideal for high-volume lab work.
• Environmental performance: The high-temperature afterburner with ceramic filtration reduces ignition emissions by up to 95%.
• User flexibility: Automatic or manual modes allow tailored testing protocols.
• Data interface: RS-232 port allows data transfer to PCs for graphical analysis and reporting.

For labs requiring full setup accessories, Certified MTP also offers the NCAT Asphalt Content Furnace Starter Kit, which includes baskets, trays, protection gear, and necessary tools for safe and efficient operation.

Applications

The NCAT Asphalt Content Furnace is used in:

• Construction and transportation quality control
• Research facilities evaluating mix designs
• Materials testing laboratories ensuring compliance with industry standards

It meets test methods like AASHTO T308 and ASTM D6307, which are benchmarks for asphalt content testing in the pavement industry.

For broader materials testing needs—such as concrete, soil, and aggregate testing—Certified MTP provides a wide range of equipment under its Construction Materials Testing Equipment category.

Final Thoughts

The NCAT Asphalt Content Furnace is a robust and efficient tool for asphalt content determination. Its combination of automation, environmental safety, and large sample capacity makes it indispensable for modern pavement testing programs and quality control labs. Whether used for daily QC tasks or detailed research studies, this furnace delivers accurate, repeatable, and traceable results critical for infrastructure performance and compliance.