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Concrete Test Hammer: Test Rebound Hammer, Type N

Price $742.81
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Concrete Test Hammer Type:
N
Compressive Strength:
1450 - 10,152psi (10-70mPa)
Impact Energy:
2.207Nm (1.63ft-lbf)
Condition:
New
Minimum Purchase:
1 unit
SKU:
V074.CT-0705

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Rebound Hammer Test Standard: Concrete Testing Hammer, Type N

Concrete Strength Testing

Concrete strength testing is an important process in the construction industry to ensure structures can withstand various environmental and operational conditions. One of the methods used for this purpose is the rebound hammer test, also known as the Schmidt hammer or Swiss hammer test. This non-destructive testing (NDT) method is widely used for concrete strength testing, especially for in-place concrete. The rebound hammer test works by measuring the rebound number of a spring-loaded mass that hits the concrete surface, giving an indication of the concrete’s compressive strength. Understanding the principles and applications of the rebound hammer test is crucial for construction professionals, engineers and quality control specialists. This is a quick and reliable way to test concrete quality and durability, that’s why it’s a must have in the construction industry.

Hardened Concrete

Hardened concrete is the end product of the concrete mixing, placing and curing process. Its strength and durability are key factors in determining the overall quality and performance of a structure. Hardened concrete can be tested using various methods including the rebound hammer test to evaluate its compressive strength and other properties. The rebound hammer test is a quick and reliable way to test concrete strength, that’s why it’s an essential tool for construction professionals. By understanding the properties of hardened concrete and the principles of the rebound hammer test, engineers and quality control specialists can ensure structures meet the required safety and performance standards. This knowledge will help you make informed decisions on the material’s suitability for different applications.

Concrete Test Rebound Hammer, Type N

Meet the Concrete Test Hammer - a toughtool to test concrete rebound. For contractors, engineers and builders who need to quickly and easily test concrete strength and durability. It’s important to use a calibration anvil for accurate readings.

Rebound hammers, also known as concrete test hammers, are used to test the quality and strength of hardened concrete. The apparatus includes specific instruments that ensure consistent and reliable measurements of the rebound number.

What is a Concrete Test Rebound Hammer?

A concrete test rebound hammer, also known as a Schmidt hammer, is a non destructive testing tool to measure the surface hardness of concrete. This tool is necessary for the quality of hardened concrete and estimate the compressive strength. Its portability and ease of use makes it a must have for professionals, engineers and researchers. Simply push the plunger against the concrete surface with the hammer to initiate the test and you can get the data of the material strength and durability, so concrete structures meet the standards.

History and Development of Rebound Hammer

concrete test hammer was invented in 1954 by Ernst O. Schmidt, a civil engineer from Zurich, Switzerland. Schmidt saw the need for a reliable way to test strength and developed this tool. Later Antonio Brandestini commercialized it through his company Proceq. Proceq has since become the leader in production and research of concrete test hammers. Over the years the rebound hammer has evolved with new models and integration of advanced technologies like accelerometers, rebar locators, and optical encoders to improve its accuracy and functionality.

When to Use a Concrete Test Rebound Hammer

A concrete test rebound hammer is a must have tool to estimate the compressive strength of concrete in many applications. It is used to test building foundations, roads and bridges. It is also used to monitor the effect of environmental factors like temperature and humidity on strength. The hammer is useful for in confined spaces like tunnels and pipes and to test concrete in existing structures. Its quick and reliable data makes it a must have to ensure the integrity and safety structures. Concrete at different locations is crucial to evaluate variations in compressive strength and identify weaknesses.

Concrete Test Rebound Hammer, Type N:

  • Accurate, economic and reliable

  • Easy to use for fast and reliable strength

  • Aluminum housing

  • Meets ASTM C805 and other standards

  • Consistent hammer mass for precise impact energy

Included Items:

Rebound Hammer, Type N Technical Data, Specifications, Compressive Strength:

  • Measuring range: 10 to 70 N/mm² compressive strength

  • Impact energy: 2.207 Nm, 1450 - 10,152psi (10-70mPa).

  • Dimensions: 280 x 80 mm (length x diameter)

  • Weight: 1.5 kg

  • Calibration: traceable to NIST.

Curves are used to estimate in-place concrete by establishing a relationship between rebound values and compressive strength.

Affecting Results

Several factors can affect the accuracy of rebound hammer results, including the surface texture and moisture content. The type of form material or finishing used of the surface can also impact the rebound number. Additionally, the vertical distance from the bottom of a placement and the depth of carbonation can influence the results. It is essential to consider these factors when interpreting rebound hammer results and to ensure that the test surface is properly prepared before conducting. Calibration of the rebound hammer is also crucial to obtain reliable results. By understanding the factors that affect results and professionals can ensure that the rebound hammer test is used effectively and accurately, providing a true representation of the concrete’s compressive strength.

Maintenance

To ensure accuracy and reliability of the rebound hammer regular calibration and maintenance is required. Calibration should be done using a grinding stone to maintain the hammer surface hardness. Proper surface preparation of the area is also important to get accurate results. Hammer should be stored in dry place, away from extreme temperature and humidity to prevent damage. By following these maintenance practices you can be sure your rebound hammer will give you consistent and precise readings and the quality.

Concrete Test Hammer: Test Rebound Hammer, Type N

Concrete Test Hammer: Test Rebound Hammer, Type N

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