关于筛分的问题？？？？？？？？？？？ [复制链接]

31.5对应31.5mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
25对应19mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
20对应16mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
16对应13.2mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
10对应9.5mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
5对应4.75mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
2.5对应2.36mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
1.25对应1.18mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
0.63对应0.6mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
0.315对应0.3mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
0.16对应0.15mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
0.075不变mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

圆孔筛与方孔筛的对应关系 表2mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
圆孔筛孔径(mm)        对应的方孔筛孔径(mm)                mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
      100                                        75        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
      80                                        63        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
      63(或60)                              53        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
      50                                        37.5        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
     40                                        31.5        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
     31.5(或30)                           26.5        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
     25                                       19        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
     20                                       16mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
    16                                       13.2        mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
    10                                       9.5mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
    5                                         4.75mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   2.5                                       2.36mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   1.25                                     1.18mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   0.63                                     0.6mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   0.315                                   0.3mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   0.16                                     0.15mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
   0.075                                   0.075mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
　        　mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
注：圆孔筛系列中小于1.25mm的本来就是方孔筛。mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
摘录自《JTJ058-2000公路工程集料试验规程》，已作废，因为现在国标用石筛子也已改为方孔，因此现在有效的《公路工程集料试验规程(JTG E42-2005)》已取消这个表。mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

学习了mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

多谢了mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

感谢大家，路过学习学习mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

下来看看啊,谢了mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

谢了mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

学习了！mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

楼上的不对，严重抗议 ，建议把桥涵规范和 GB14685 对照起来看，你就知道了 ，就是最近的，就没有错。mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

是的，那个对照是错的mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

是的，那个对照是错的mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
以前2000版集料的那个对照是错的，要是有那本规范，你可以看一下，前面大量的内容已经告诉我们真真的对照是什么了，可是最后又来一个方孔筛和圆孔筛的对照表，和前面的主要内容明显矛盾，大多数人只看后面那个对照就以为是正确的，我觉得已经误导很多人了！mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§

是的，那个对照是错的mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§
以前2000版集料的那个对照是错的，要是有那本规范，你可以看一下，前面大量的内容已经告诉我们真真的对照是什么了，可是最后又来一个方孔筛和圆孔筛的对照表，和前面的主要内容明显矛盾，大多数人只看后面那个对照就以为是正确的，我觉得已经误导很多人了！mþD¦ÃQabbs.3c3t.com¤S-ˆÎ³ç-§