impact testing machine for aggregate

impact testing machine for aggregate

1. Purpose

• Quality assessment: It is mainly used to determine the impact resistance of aggregates. Aggregates are crucial components in concrete, asphalt, and other construction materials. By testing their impact resistance, engineers can evaluate the quality and durability of aggregates, ensuring that the final construction products can withstand various external forces and environmental conditions.
• Material selection: Helps in the selection of appropriate aggregates for different construction projects. For high – traffic roads or structures in harsh environments, aggregates with high impact resistance are required, and this testing machine provides reliable data for such selections.

2. Working principle

• Impact mechanism: The machine typically has a hammer or a falling weight. When the test starts, the hammer is lifted to a certain height and then released. The falling hammer strikes the aggregate sample, applying an impact load.
• Measurement and analysis: After the impact, the change in the aggregate’s state, such as the degree of fragmentation, is measured. Based on the test results, the impact value of the aggregate can be calculated, which reflects its ability to resist impact.

3. Technical features

• Precision: It is designed to provide accurate and repeatable test results. Advanced sensors and measurement systems are often incorporated to ensure the reliability of the data.
• Safety: Equipped with safety devices to protect operators during the testing process. For example, there may be enclosures to prevent fragments from flying out when the aggregate is impacted.

4. Standards compliance

• This type of testing machine usually complies with relevant national and international standards, such as ASTM (American Society for Testing and Materials) or BS (British Standards). These standards define the test methods, sample preparation requirements, and acceptance criteria for aggregate impact tests.

Application:
This kind of impact testing machine jbw 300 is used to determine the impact toughness of metal materials under dynamic load. The pendulum of the machine can be raised or released automatically. It is designed according to national standard GB/T3808-1995 “Charpy Impact Test Method for Metals” and ISO standard.
It can be also accordance with ASTM E23 standard as customer’s special request. It has the features of easy operation, high efficiency, safe and reliable. The computer system can do data processing and get the test report. Under the super low  temperature cooling system, it can check the impact performance of materials. The machine is especially suitable for laboratory, metallurgy industry, machinery production, steel plant and other fields.

Specifications: