砖砌体的灰缝在砌体中起着找平、结合上下左右砖面传递荷载的作用。因此 ,无论是水平灰缝或者垂直灰缝都应达到饱满度、密实度和粘结度的要求 ,以保证砌体绝对的整体性。砖砌体的灰缝一般采用水泥砂浆或水泥混合砂浆砌成。在大多数的楼层中砂浆设计强度低于红砖砌块强度。因此 The gray seam of the brickwork plays a role of leveling in the masonry, and the function of transferring the load on the upper, lower, left and right brick surfaces is played. Therefore, both the level of gray joints or vertical ash joints should reach the fullness, density and adhesion requirements in order to ensure the absolute integrity of the masonry. Gray joints of brick masonry generally use cement mortar or cement mixed mortar. Mortar design strength is lower than that of red brick in most floors. therefore