目前，业内还没有就如何铺设一个有青蛙的砖单元达成共识。raybet 苹果下载模压砖是在模压砖的承重面上的凹陷。青蛙减轻了砖块的重量，使其更容易从模板上移除。ASTM规范c62(建筑砖)，c216(面砖)，和c652(空心砖)都对青蛙的大小设置了限制。青蛙不能离砖块边缘超过3/4英寸。任何深度超过3/8英寸的青蛙都被视为与岩心一样。深度小于3/8英寸的青蛙不会影响到单位的净面积。一些专家说，含有青蛙的砖块应该与青蛙一起放置，这样青蛙就完全被灰泥填满了。如果在砖的底部铺上蛙，蛙可能无法完全填满灰泥。这将使砖墙只有面壳层，产生的墙强度低于全砂浆层。 Other experts say brick should be laid with the frog down. They give two reasons. First, a uniform bed of mortar can be laid more easily on the face that doesn't contain the frog. If the frog is less than 3/8 inch deep, the mortar bed should be able to fill the frog. Second, if the frog is laid up, it can hold water, which may contribute to early brick deterioration. Most masonry walls built today are not highly stressed bearing walls. Water penetration and resulting freeze-thaw damage are greater problems. Thus, I recommend laying brick with the frog on the bottom.