Plaster water retention tester

                                                         Plaster water retention tester

Gypsum water retention tester product introduction: is based on the stucco gypsum building materials industry standard of the People's Republic of China (JC/T517-2004) developed and used to detect the stucco gypsum the determination of water retention, at the same time can also be used for cement, mortar water retention test.



Gypsum water retention tester technical parameters:

♦ buchner funnel, the inner diameter of 150 mm, 65 MML, 2 mm aperture, hole number 169.

♦ seismic vacuum gauge 0 to 0.1 MPa

♦ vacuum negative pressure of 0.1 MPa

♦ T scraper, by hard wear-resistant material thickness is 1 mm.

♦ the suction filter bottle of 5000 ml.

♦ supply voltage: 220 v, 50 hz.

♦ appearance size: 700 * 400 * 600 mm

♦ power: 200 w

♦ net weight: 30 kg



The experimental steps:

A, according to the cloth type hopper inner diameter cut A medium speed quantitative filter paper, its spread in the bottom of the funnel, filter and filter paper moistened with water. Cloth type hopper on the suction filter bottle, open the vacuum pump, the suction filter for one minute, remove the cloth type hopper, using filter paper will next residual supplier Shanghai rong meter of water wipe after weighing experiment instrument co., LTD (G1), accurate to 0.1 grams.

B, using standard diffusion degree of water consumption of gypsum slurry placed in the cloth after weighing type hopper, with T scraping board in the funnel vertical rotating flat, keep the slurry thickness within the scope of the (10 + / - 0.5) mm, wiping cloth type funnel wall on the remnants of gypsum slurry, weighing (G2), accurate to 0.1 grams. From mixing is to weigh the finished time interval should not be greater than 5 minutes.

C, after weighing the cloth type hopper on the suction filter bottle, to start the vacuum pump. For 30 seconds to negative pressure switch to (53.33 + 0.67) kpa. The suction filter for 20 minutes, then remove the funnel, using filter paper under residual water wipe mouth, weighing (G3), precision is 0.1 grams.

If two consecutive measured water retention and its average difference is not greater than 3%, in the average as test water retention, otherwise should redo the test.

                                                                     Shijiazhuang jing jin machinery equipment installation co., LTD