Step 1: place the glass plate in the horizontal position. Wipe the glass plate, cutting cone circular mould, agitator and stirring pot with a wet cloth to make the surface wet without water stains.Place the truncated cone round die in the center of the glass plate and cover it with a wet cloth for use;
Step 2: weigh 300g of cement and pour into the mixing pot.Add the recommended amount of admixture and 87g or 105g of water and stir immediately (120s slow, 15s stop, 120s fast).
Third step, the net will be mixed slurry into a truncated cone round die quickly, scrape to evenness with scraper, lift truncated cone round mode according to the vertical direction, at the same time open a stopwatch to time, President of net cement slurry flow on the glass, and 30 s, with straightedge perpendicular flow take part of two direction of maximum diameter, average as neat cement paste fluidity.
After using the method mentioned above, it is necessary to scrape the clean cement slurry on the glass board with a scraper, and then wipe the glass board with a wet cloth again for the next experiment.
