关于筛分的问题？？？？？？？？？？？ [复制链接]

31.5对应31.5Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
25对应19Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
20对应16Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
16对应13.2Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
10对应9.5Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
5对应4.75Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
2.5对应2.36Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
1.25对应1.18Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
0.63对应0.6Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
0.315对应0.3Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
0.16对应0.15Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
0.075不变Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

圆孔筛与方孔筛的对应关系 表2Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
圆孔筛孔径(mm)        对应的方孔筛孔径(mm)                Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
      100                                        75        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
      80                                        63        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
      63(或60)                              53        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
      50                                        37.5        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
     40                                        31.5        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
     31.5(或30)                           26.5        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
     25                                       19        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
     20                                       16Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
    16                                       13.2        Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
    10                                       9.5Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
    5                                         4.75Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   2.5                                       2.36Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   1.25                                     1.18Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   0.63                                     0.6Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   0.315                                   0.3Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   0.16                                     0.15Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
   0.075                                   0.075Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
　        　Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
注：圆孔筛系列中小于1.25mm的本来就是方孔筛。Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
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。Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

学习了Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

多谢了Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

感谢大家，路过学习学习Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

下来看看啊,谢了Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

谢了Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

学习了！Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

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。Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

是的，那个对照是错的Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

是的，那个对照是错的Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
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！Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ

是的，那个对照是错的Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ
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！Ú=€Px5µ!bbs.3c3t.com²AGùÙ¸îdÐ