Reliability Analysis of UTP Water Permeameter for Concrete Samples

The main factor that is indirectly proportional to permeability is durability. Concrete
durability depends largely on the ease (or difficulty) with which fluids (water, carbon
dioxide, oxygen) in the form of liquid or gas can migrate through the hardened concrete
mass since concrete is a porous material. The consistency and accuracy of permeameter
in producing results is of utmost important. This research is to determine the reliability of
UTP Air Permeameter that has been developed in the concrete technology laboratory of
UTP since there is no verification of the reliability of this test method compares other test
methods. This project establishes the respond of UTP Permeameter on concrete samples
age 3, 7, 28 and 56 days. Besides that, it also established correlations results obtained
from UTP Permeameter and other tests method. Concrete samples were cast based on
four different grades, which is grade 30, 40, 50 and 60. From this, the samples were
moulded into slab and cube. Compressive strength tests was conducted on cube samples
while UTP Permeameter test was conducted on slab samples which were cored into
cylindrical cube. In conclusion, this project had accomplished its objective. From the
correlation of the data obtained, the UTP Air Permeameter is a reliable device. Further
laboratory test can be carried out by setting up different values such as different pressure
or different grades.