The mortar is used for layered maso

The mortar is used for layered masonry so that the cofferdam built has better stability. During the construction of masonry, it is necessary to choose the stones and appropriate materials for masonry in advance to maximize the quality of stones and masonry so that they meet the standards of use. Before laying the stones, the stones must be moistened and then mortar so that the quality of the masonry can be guaranteed. In the process of laying stone due to lack of compactness between the stones will be a certain gap, and the width of the gap is also very large. If the space is too large, it can cause water seepage problems. if the gap is too small, skew and arc may occur