SU673893A1 - Device for determining water-tightness of road coatings - Google Patents

Description

(54) DEVICE FOR THE DETERMINATION OF WATER RESISTANCE OF ROAD COVERINGS

The device consists of a cylinder 1 with a stem 2 mixing in it, displacing liquid from the cylinder. In order to move the rod 2 at its end, a piston 3 is mounted, which is its guide. In the piston 3 there are made through holes 4 for the free passage of liquid into the piston and piston cavities of the cylinder. On the top of the cylinder 5 cylinder, there is a drainage valve, “impeller”, for pumping the system and air discharge. The rubber pipes 7 and 8 of the cylinder's floodplain are iarenizhn: the 1st cover 9 is connected with a capacity of 10 for the active fluid of the cylinder and the measuring-x

11, gasketable to sample

12. The mortar chamber is equipped with a valve nipple 13 for venting. At the upper end of the line is located. Plate 14 for use of the pump. Call 15. To measure the flow of liquid, use the measuring bar 16, mounted on the upper rod 2. The operating pressure is recorded by the mano-jvTOTpoM 17, which is set at the bottom. cylinder bore 1. Crankcase 1 cylinder cavity and iO capacity to fill the fillings 18; 18.:

Fixing the stem of the EC is performed by using a stopper 19. For installing the cylinder into the crankshaft using regular screws. 2O-1SH top cover prtbo m ukryoy lena ampoule levels 21.

Execution with holes communicating the cylinder cavity provides the possibility of fluid leakage that will intimidate the aaccum, as a result of which the readings may be distorted, and the drainage to {in the upper 1 rykketsylyvydr will lose the confusing and 10th stem. /

The device works with eaukshshm way.

On the test surface of the asthphalt toa n concrete of the concrete ycTiaShdaSht Shyeritetyu 11 And

Shkujo pressed.:;::;.

Esii aaiitepeHHe p {on a road canvas, take the camera to the spirated hp npH HNaipT with a jack, yatijjaa and the last car frame. Before supplying water, the cavity of cylinder I, rod 2, is raised

673893

in the upper position, which is fixed with a stopper 19, then open the valve 18 and supply water. To remove air from the cavity of the cylinder 1 and the measuring chamber 11, open the valve 13 located on the upper crush 5 of the cylinder 1.

After the appearance of water, the taps 13, b and 18 float close. With the help of adjusting turns 20, the device is installed vertically on level 21. Then the stopper 19 is taken out of the engagement and the loads 15 act on the rod, which creates a non-persistent fluid pressure, as determined by the pressure gauge 17.

Water is filtered into the test material through holes in the measuring chamber.

Depending on the size of the test samples under the measuring chamber, set the appropriate tab 12.

The fluid flow rate is fixed visually according to the scale of the measuring line 16.

The pressure is monitored with a meter 17 and the pressure is adjusted by changing the mass of the load 15.

Claims (2)

1.Patent of France No. 21911732, cl. 6-01 | sr, 1974. 2. USSR author's certificate number 505233, cl. 0-01 08/15, 1975.  -1zp (d uutsidru d ... .