Original
Specification
S U R F A C E W A T E R A B S O R P T I O N T E S T
SURFACE ABSORPTION APPARATUS
BS 1881-208
To assess the concrete surface absorption characteristics. The rate of flow of water per unit area into a concrete surface when subjected to a constant head of 200 mm is measured. The apparatus consist of :
§ Supplied with reservoir, capillary tube, scale and connection to cap
§ Supplied with cap for clamping on to smooth surface and manufactured from clear plastic incorporated a rubber seal complete with clamp mechanism.
§ Mounted on a stand complete with rubber tubing and cup
§ Bore glass tube 1.9mm diameter and 240mm long mounted on scale and support board
§ The scale on a support board reading in mm
§ Test specimen up to 150 mm concrete cube
§ The test cap for rough surface incorporated with knife edge contact
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