砂篩分自動生成系統(tǒng)

二級公路建設(shè)項目,,,,,,,,,,,,,,,分計篩余篩孔,分計上限質(zhì)量,分計下限質(zhì)量,實際控制

砂篩分試驗記錄（試表23-2）,,,,,,,,,,,,,,,4.75,50,0,0～50

合同段：,,,A1,,,工程編號：,,,,,,本表編號：,,,2.36,75,0,0～75

工程名稱：,,,,,,,,,施工單位：,,,,,,1.18,125,50,50～125

試樣編號：,,,,,,,,,施工路段：,,,,,,0.6,100,155,100～155

取樣地點：,,,工地料場,,,,,,取樣說明：,,,河砂,,,0.3,110,145,110～145

"篩孔尺寸（mm）

",分計篩余質(zhì)量（g）,,,,,,,,,,"分計篩余（%）

","累計篩余（%）

","通過百分率（%）

",,0.15,40,100,40～100

,1,,,2,,,平均,,,,,,,,累計,500,450,

9.5,,,,,,,,,,,,,,,篩孔,上限,下限,實際

4.75,19.7,,,29.7,,,24.7,,,,4.9,4.9,95.1,,4.75,10,0,4.9

2.36,62.7,,,59.1,,,60.9,,,,12.2,17.1,82.9,,2.36,25,0,17.1

1.18,117.7,,,88.1,,,102.9,,,,20.6,37.7,62.3,,1.18,50,10,37.7

0.6,96.7,,,88.0,,,92.4,,,,18.5,56.2,43.8,,0.6,70,41,56.2

0.3,116.2,,,141.2,,,128.7,,,,25.7,81.9,18.1,,0.3,92,70,81.9

0.15,62.3,,,88.5,,,75.4,,,,15.1,97.0,3.0,,0.15,100,90,97.0

篩底,24.7,,,5.4,,,,,,,,,,,水泥混凝土Ⅱ區(qū)級配范圍,,,

∑,500.0,,,,,,,,,,細(xì)度模數(shù)Mx,,2.79,細(xì)度模數(shù)MX計算方式:=(A0.15+A0.3+A0.6+A1.18+A2.36)-5*A4.75/100-A4.75,,,,

篩分曲線,,,,,,,,,,,備注：,,,式中：A0.15…Ａ0.3…A4.75為各篩余百分率,,,,

,,,,,,,,,,,,,,篩孔:9.5㎜篩適用于水泥混凝土用天然砂;4.75㎜適用于瀝青路面及基層用天然砂、石屑機制砂等。,,,,

,,,,,,,,,,,,,,細(xì)集料篩分取樣：烘干樣品約500克，準(zhǔn)確至0.5克.,,,,

,,,,,,,,,,,Mx=3.1～3.7為粗砂,,,"試驗器材:1\標(biāo)準(zhǔn)篩.2\天平:稱量1000g,感量不大于0.5g,3\篩搖機.4\烘箱.5\其它",,,,

,,,,,,,,,,,Mx=2.3～3.0為中砂,,,試驗方法:1\干篩法,,,,

,,,,,,,,,,,Mx=1.61～2.2為細(xì)砂,,,,"備注:如為特別細(xì)砂時,樣品可減少至400克.含泥量超過5%,不宜采用干篩法,無篩搖機時,可用手篩.",,,

,,,,,,,,,,,,,,,2\水洗法,,,

,,,,,,,,,,,,,,,"備注:要求全套篩孔組成套篩,但不需要0.075㎜篩.",,,

,,,,,,,,,,,備注:,,,"說明:試驗方法中,無論方法1或2,均需要進(jìn)行兩次平行試驗以平均試驗值為測定值.而且,無論方法1\2中,所有各篩的分計篩余量和剩余量的總質(zhì)量與篩分前試樣總質(zhì)量的差值不得超過后者的1%."