我国江南一带,施工中常用内三度和外三度来衡量砌砖的质量。什么是内三度呢?它指的是砖的强度、砌筑砂浆强度和砌体灰缝的砂浆饱满度。这三项指标的高低,是砖砌体的内在质量好坏的标志,直接影响砖砌体的强度。因此砖使用前先要进行原材料检验,强度要符合要求;砌筑砂浆要事先进行试 In Jiangnan area of ​​China, the quality of masonry bricks is commonly measured in the third and third degree in construction. What is the internal third degree? It refers to the strength of the brick, the strength of the masonry mortar and the mortar fullness of the masonry mortar joint. The level of these three indicators is a sign of the internal quality of the brickwork, directly affecting the strength of the brickwork. Therefore, before the bricks are used, the raw materials must be inspected and the strength must meet the requirements; the masonry mortar must be tested in advance.