This page collects short MCA-produced videos demonstrating standard ASTM field tests performed on fresh concrete. They are intended as a study aid for anyone preparing for Level I concrete field testing certification, and as a refresher for technicians already working in the field. Select a test below to watch the video.
Measures the temperature of freshly mixed concrete, which affects setting time, strength development, and whether hot- or cold-weather precautions are needed.
ASTM C143 - Slump
Measures the consistency of fresh concrete by how far a cone-shaped sample settles after the mold is lifted.
ASTM C31 - Cylinders
Covers how to make and cure concrete test cylinders in the field so they can later be tested for compressive strength.
ASTM C138 - Density
Measures the density (unit weight) of fresh concrete, which is also used to check yield and estimate air content.
ASTM C231 - Air Content Pressure Method
Measures the air content of fresh concrete using a pressure meter; it is typically used for concrete made with normal-weight aggregates.
ASTM C173 - Air Content Volumetric Method (Roll-A-Meter)
Measures the air content of fresh concrete by agitating the sample with water in a roll-a-meter to release the trapped air; it can be used with any aggregate type, including lightweight aggregates.
