Improved Florida Department of Transportation Testing Procedure for PermeabilityDetermination of Florida Concrete

摘要

The Florida Department of Transportation, has taken the lead in developing newtechniques and equipment to measure concrete permeability. The objective of this research project is to: (1) develop a new unit that will allow for the digital readout of the flow rate, (2) increase the water storage capacity so that refilling during a test is not required, (3) design the necessary peripheral equipment to capture the flow data and store it in a laptop computer, (4) provide additional capabilities to conduct 4 tests simultaneously, and (5) make the device able to measure the nitrogen permeability of the concrete. All of these objectives have been met and the two new units are currently undergoing checkout and fine-tuning.