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Before you start your ImPACT baseline or post-injury test, make sure you carefully read the instructions and watch the video below.
- Methods For Testing Compressive Strength of Concrete
- Combined Methods of Strength Testing
- Choosing A Compressive Strength Method
1. Rebound Hammer or Schmidt Hammer (ASTM C805) Method:A spring release mechanism is used to activate a hammer which impacts a plunger to drive into the surface of the concrete. The rebound distance from the hammer to the surface of the concrete is given a value from 10 to 100. This measurement is then correlated to the concretes’ strength. Pros:Re...
A combination of these methods for measuring the compressive strength is sometimes used to ensure quality control and quality assurance of a concrete structure. A combined method results in a more comprehensive overview of your slab, allowing you to confirm strength data by using more than one testing method. The accuracy of your strength data will...
Tests like the rebound hammer and penetration resistance technique, while easy to perform, are considered less accurate than other testing methods (Science Direct). This is because they do not examine the center of the concrete element, only the curing conditions directly below the surface of the slab. Practices, such as the ultrasonic pulse veloci...
Post concrete inspection of concrete structures is essential to check for any damage or defects that may require repair. Immediately after stripping the formwork, all concrete members casted are carefully inspected and any defective work or small defects ...
concrete. Inadequate surface preparation is one of the most common causes of concrete protection system failures. This guide provides information and recommendations for the evaluation and preparation of concrete surfaces that are to receive a protective system. Various protection systems and their descriptions are provided in ACI 515.2R.
Aug 26, 2014 · The present study aims to develop a pendulum impact test method to determine the impact resistance of Ultra-High-Performance Fibre-Reinforced Concrete (UHPFRC).
Jun 20, 2018 · Post-injury testing, like baseline testing, is comprised of computerized assessments that measure reaction time, memory capacity, speed of mental processing, and executive functioning scores for memory (visual and verbal), reaction, and speed.
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It’s a computerized test that measures memory, attention span, visual and verbal problem solving. ImPACT has two primary uses: before the onset of an activity, a baseline test is conducted to measure the athlete’s performance baseline. In the event of an injury, a post-injury test
