Laboratory Asphalt Permeameters

Laboratory Asphalt Permeameters measure the hydraulic conductivity of saturated 6in (152mm) diameter asphalt cores or laboratory-compacted specimens using the falling head method. The simple, easy-to-use method is based on procedures developed at the Florida DOT. A version for 4in (102mm) test specimens is also available but does not meet the sample size requirements for the test method.

An asphalt sample is secured by expanding discs inside a cylinder lined with a replaceable latex membrane. A self-contained manual pump provides a vacuum to draw the membrane against the cylinder during sample placement, as well as pressurizes the membrane during testing to fill voids and eliminate flow down the outside of the specimen. A dial gauge displays pressure applied by the hand pump. Permeability of the prepared specimen is determined by the timing flow of water from the included 500cc Manometer through the sample. Two Latex Membranes are included with each Permeameter, and additional membranes are available as accessories. For more permeable samples, a larger capacity 2,000cc Manometer is available as APA-120. Replacements for the standard 500cc Manometer Tube are available as APA-105.

AP-16 has an acrylic cylinder and tests 6in (152mm) diameter samples, meeting Florida DOT FM 5-565.

AP-14 has a metal cylinder and tests 4in (102mm) diameter samples but does not meet the sample size requirements specified in FM 5-656.

Features:

• The simple design uses a falling head method to determine the hydraulic conductivity of asphalt cores or lab compacted samples
• Convenient dial gauge displays vacuum or pressure applied by hand pump

Included Items:

• 6in or 4in Laboratory Asphalt Permeameter
• Two 6in or 4in Latex Membranes
• 500cc Manometer
• Self-contained Hand Pump

Accessories:

• 4in or 6in Latex Membranes for Lab Asphalt Permeameter fill voids and eliminate outside flow
• 500cc or 2,000cc Manometers for Lab Asphalt Permeameter measure flow through the sample to determine permeability
• MA-30 Large Display Digital Stopwatch times the water flow through the sample