水刷石在阴、阳角处往往不易做得平直。主要原因是在做完上一节阳角,接着做第二节罩面水泥石子浆时,靠尺对正第一节已做好的阳角,然后用铁板将灰浆挤出,原灰浆占据的地方被石子挤严,水泥浆被冲掉后,就比上一节的水刷石面略低。因此,做阳角时,在下一节水刷石面贴靠尺,要比前一节已做好的阳角略高1～2mm,经过抹平,压实、冲洗,上下节的阳角面就直了。阴角不直,是由于操作问题,因此在做阴角时,要分为两个平面操作,先在底子上 Water brush stone is often not easy to straighten in the yin and yang corners. The main reason is that after finishing the upper section of the Yang angle, and then doing the second quarter of the cement grout, the right angle of the first section is corrected by the ruler, and then the mortar is extruded out of the iron plate, and the original mortar is occupied. The place was squeezed tightly by the stones and the grout was washed off, which was slightly lower than the brush stone on the previous section. Therefore, when doing the angulation, in the next section, the stone face of the water brush is closer to the ruler than the one already done in the previous section. After the trowel is smoothed, it is compacted and rinsed, and the angulations of the upper and lower corners are Straighten. The inside corner is not straight, it is due to the operation problem, so when doing the inside corner, it must be divided into two plane operations, first on the base