Testing process and apparatus for determining absorption properties of porous specimen
AssigneeUniversite du Quebec a Montreal
InventorsPaul Lavallee, Michel Kuntz
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Abstract
Testing process and apparatus for determining absorption properties of a porous specimen. The porous specimen is brought in a predetermined state of contact with the body of water held by a reservoir, for inducing water absorption in the porous specimen. A weight of the porous specimen is monitored for a predetermined time period once the contact is established to produce weight data over time. The predetermined state of contact is maintained substantially constant during the time period by permanent circulation of water in the reservoir. The absorption properties of the porous specimen are determined as a function of the weight data over time.
Claims26
A testing process for determining absorption properties of a porous specimen, comprising:
- bringing the porous specimen in a predetermined state of contact with the body of water for inducing water absorption in the porous specimen;
- monitoring a weight of the porous specimen for a predetermined time period once the contact is established to produce weight data over time;
- maintaining the predetermined state of contact substantially constant during the predetermined time period;
- and
- determining the absorption properties of the porous specimen as a function of the weight data over time.
A testing apparatus for determining absorption properties of a porous specimen, comprising:
- a reservoir adapted to hold a body of water;
- a support extending over the reservoir, for hanging the porous specimen;
- a means for controllably effecting a relative displacement of the reservoir and the support toward each other to bring the porous specimen in a predetermined state of contact with the body of water for inducing water absorption in the porous specimen;
- a means for maintaining the state of contact substantially constant during a predetermined time period;
- and
- a weighing means for measuring a weight of the porous specimen hanged by the support during the predetermined time period and providing weight data over time based on the weight;
- whereby the absorption properties are determinable as a function of the weight data.
The testing apparatus according to claim 14, wherein the reservoir comprises a water supply chamber provided with the water supply inlet, and a measurement chamber provided with the water overflow and adapted to receive the porous specimen, the water supply and the measurement chambers being separated by a partitioning wall extending in front of the water supply inlet at a distance therefrom and upwardly projecting out of the body of water, the wall having a bottom opening for water communication between the water supply and measurement chambers.
Dependencies are inferred from the claim text.