When compressive strength tests of laboratory-cured cylinders fail to meet the specified acceptance criteria, core tests are commonly used to verify the strength and to obtain acceptance of the ...

This video illustrates a flexural test performed on a fiber-reinforced concrete beams using a universal testing machine from ADMET. ASTM C1609 is a standard test method used to determine the flexural ...

Almost a century old, the 90-minute rule for mixed concrete has dictated how mixed concrete is handled. Here's why it matters ...

Concrete suppliers and contractors are sometimes accused of producing or placing low-strength concrete. While low-strength concrete does occasionally occur, many times reported cylinder strengths are ...