烧结普通砖的尺寸为240mm×115mm×53mm,已知其孔隙率为37%,干燥质量为2487g,浸水饱和后质量为2984g。试求该砖的体积密度、密度、吸水率、开口孔隙率及闭口孔隙率。

V0=24×11.5×5.3=1463 cm³<br/>体积密度: <img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1541731779689162edd4536d64f489c31909e50c66904.png" alt="上传图片">得<br/>密度:<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15417317944369a84a7880f9b45849d872c7fe36aeb15.png" alt="上传图片"><br/>吸水率:&nbsp;<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1541731817036000045dc074940e1aeab41742861a21b.png" alt="上传图片"><br/>吸入水的质量为2984-2487=497(g),即开口孔隙体积为497 cm³<br/>开口孔隙率:<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/154173184340324f2046be87642a09f589b5e9221a892.png" alt="上传图片"><br/>闭口孔隙率:&nbsp;<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1541731856357d85083e4443c427390c7b607dd70cab0.png" alt="上传图片">