It s good for sieve aggregate.
Roller meter concrete air test.
Volumetric method aci technician workbo.
Readings of percent of air are directly obtained from the liquid level on the scale.
Disassemble the meter empty the base and examine the contents to be sure that there are no portions of undisturbed tightly packed concrete in the base.
Dual clamping system with o ring seal for upper and lower chambers.
Lightweight concrete roll a meter is a lightweight version of the popular roller meter.
Used for the rolling method of measuring entrained.
Set the roller meter upright and loosen the top to let the air pressure inside stabilize.
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Constructed from cast aluminum with window graduated from 0 to 10 in 0 25 subgraduations.
It is specifically required by astm and aashto standards for use with concrete mixes that contain lightweight aggregates.
Lightweight roll a meter is a volumetric air meter for testing concrete mixes.
This aluminum roll a meter is used to determine the air content of concrete mixes containing lightweight aggregate.
In the meter you have a known volume of air at a known pressure in a sealed air pot with an unknown volume of air being contained inside the sample of wet concrete.
Astm c173 concrete air meter test volumetric method.
It has quizzes and two practice tests to prepare you for the test.
This method of testing can be used on any type of concrete lightweight regular weight or heavy weight.
It is required for use with lightweight aggregate concrete but can reliably be used with any mix.
The liquid level is considered stable when it doesn t change more than 0 25 air within a 2 minute period.
Determine air content specific gravity and free moisture test of aggregates.
Lightweight roller meter determines entrained air content of fresh mix concrete fly ash and other lightweight aggregates.
Go to the online aci course.
If portions of undisturbed concrete are found the test is invalid.
This test s purpose is to get the air content of a sample of concrete using a pressure meter.
H 2796a roll a meter air indicator.
It is a simple and accurate device for measuring the air content of concrete mixes.
H 2795p volumetair air meter.
