AZA 0938 STANDARD PENETROMETER

Description

AZA 0938 Standard Penetrometer: Reliable Consistency Testing for Bituminous Materials by Azalab

The Azalab AZA 0938 Standard Penetrometer is a robust and dependable manual instrument designed for accurately determining the consistency of bituminous materials, including bitumen, asphalt, and other semi-solid substances such as greases and waxes. This essential piece of laboratory equipment is widely used in civil engineering laboratories, road construction projects, and material testing facilities where a reliable and straightforward method for assessing material hardness and softness is required. The AZA 0938 adheres to the fundamental principles of penetration testing, offering a cost-effective yet precise solution for classifying and grading bituminous binders according to international standards such as ASTM D5 and EN 1426.

The AZA 0938 Standard Penetrometer in Bitumen Consistency Testing

The penetration test is a fundamental and widely accepted method for quantifying the hardness or softness of bitumen. It measures the vertical depth, in tenths of a millimeter (0.1 mm), to which a standard needle, under a specified load (typically 100 grams), will penetrate a sample in a fixed duration (commonly 5 seconds) at a controlled temperature (usually 25°C). The AZA 0938 Standard Penetrometer performs this test with the reliability expected from a classic mechanical design. A higher penetration value signifies a softer material, which is crucial for pavements in colder climates to prevent cracking. Conversely, a lower value indicates a harder, more viscous material, preferred for roads in hotter regions to resist rutting and deformation. This measurement is vital for ensuring the asphalt mixture’s suitability for specific environmental conditions and its long-term performance.

Robust Mechanical Design for Consistent Performance: The AZA 0938 is built for durability and long-term performance, featuring a sturdy cast iron base that provides excellent stability during testing, minimizing vibrations that could affect results. Its rigid uprights ensure precise vertical movement of the plunger assembly. The core of the AZA 0938’s operation lies in its precision-engineered mechanical components. A fine-adjustment mechanism, typically a rack and pinion system, allows the operator to accurately position the needle tip to just touch the surface of the sample. The manual release button initiates the free fall of the plunger, and a manual lock arrests its movement precisely at the end of the timed interval, which is typically controlled by an external stopwatch.

Key Features for Practical and Accurate Testing: The Azalab AZA 0938 Standard Penetrometer combines simplicity with functionality to deliver accurate results:

• Precision Dial Gauge: Equipped with a clear and easy-to-read dial gauge for measuring the penetration depth, typically with a resolution of 0.1 mm.
• Manual Release and Lock: Provides direct control over the test, allowing experienced operators to execute tests efficiently.
• Sturdy Construction: Heavy-duty cast iron base and robust frame ensure stability and durability in demanding laboratory environments.
• Adjustable Leveling: Features leveling screws on the base and a built-in spirit level to ensure the instrument is perfectly horizontal, a critical factor for accurate penetration.
• Standard Accessories: Supplied complete with standard penetration needle(s), calibrated weights (e.g., 50g, 100g to achieve the standard 100g load), and standard sample cups.
• Optional Enhancements: While a standard model, optional accessories like a magnifying lens and a low-voltage illuminator (as seen on more advanced models) can be added for improved visibility and ease of initial contact.

Applications and Compliance with Global Standards: The AZA 0938 Standard Penetrometer is an indispensable tool in various sectors. Its primary application is in the testing of bitumen and asphalt for road construction and civil engineering, playing a vital role in quality assurance programs to ensure compliance with material specifications. It is also suitable for consistency testing of other semi-solid materials in the petroleum, pharmaceutical, and food industries. This instrument is designed to fully comply with established international standards, including ASTM D5 (Standard Test Method for Penetration of Bituminous Materials), EN 1426 (Bitumen and bituminous binders – Determination of needle penetration), and AASHTO T49. This compliance ensures that test results are universally recognized and valid for regulatory and certification purposes.

The Azalab Commitment to Quality and Reliability: Azalab is dedicated to providing high-quality, reliable laboratory equipment that supports accurate and essential material analysis. The AZA 0938 Standard Penetrometer embodies our commitment to delivering dependable instruments that stand the test of time. We understand the importance of precise measurements in ensuring the integrity and longevity of infrastructure projects. Our focus on robust construction and adherence to international standards ensures that the AZA 0938 will be a valuable and trusted asset in any testing laboratory.

Further Information and Resources: For detailed test procedures, specific sample preparation guidelines, and the precise environmental conditions required for penetration testing, please refer to the latest versions of ASTM D5, EN 1426, or other applicable local standards. You can also visit the Azalab official website for product manuals, support, and to explore our comprehensive range of material testing equipment.

• Q: Is an external stopwatch required for testing?
  • A: Yes, since the AZA 0938 is a standard manual model, an external stopwatch is required to accurately time the 5-second penetration duration.

Specifications:

• Model: AZA 0938
• Operation: Manual
• Measurement: Dial Gauge
• Resolution: 0.1 mm (1 Penetration Unit)
• Measurement Range: Typically 0-400 penetration units (0-40 mm) or wider.
• Load: Standard 100g (adjustable with additional weights)
• Plunger Weight: Typically 47.5g (standard for 2.5g needle to make 50g movable weight)
• Base: Robust Cast Iron/Steel with Leveling Screws and Spirit Level
• Vertical Adjustment: Rack and Pinion for Fine Adjustment
• Needle Release/Lock: Manual Button/Lever
• Timing: Requires External Stopwatch (not included)
• Included Accessories: Penetration Needle (standard 2.5g), Calibrated Weights (50g, 100g), Sample Containers (e.g., Ø 55 x h:35 mm, aluminium)
• Standards Compliance: ASTM D5, EN 1426, AASHTO T49, IP 49, IS 1203 (check specific model for full compliance details)
• Dimensions (Approx.): [Insert W x D x H, e.g., 200 x 250 x 400] mm
• Weight (Approx.): [Insert Weight, e.g., 6-10] kg

FREQUENTLY ASKED QUESTIONS (FAQ):

• Q: What is the main use of the AZA 0938 Standard Penetrometer?
  • A: It is used to measure the consistency (hardness or softness) of bituminous materials like bitumen and asphalt, as well as other semi-solid substances.
• Q: How does a manual penetrometer differ from a semi-automatic or digital one?
  • A: The AZA 0938 is fully manual; the operator controls the release and locking of the needle and reads the penetration depth directly from a dial gauge, typically using an external stopwatch for timing. Semi-automatic and digital models automate timing and/or measurement.
• Q: What standards does the AZA 0938 comply with?
  • A: It is designed to conform to widely recognized standards such as ASTM D5, EN 1426, and AASHTO T49.
• Q: What is the resolution of the measurement?
  • A: The dial gauge typically provides readings with a resolution of 0.1 mm (or 1 penetration unit).