急！谁能提供一份道路路缘石C30的配合比 [复制链接]

路缘石普通C30砾石砼配合比设计说明书™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
使用部位：中央分隔带路缘石、中沟盖板、中沟集水井盖板™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
坍 落 度：30～50mm ™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
材    料：中方县盛泰料场:中砂™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        中方县盛泰料场:5~31.5mm™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        水泥：金大地水泥有限公司 P.O32.5级™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
1）、确定试配强度，取δ=5.0Mpa™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        fch=fce+1.645δ =30+1.645×5.0Mpa=38.225 Mpa™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
2)、计算水灰比：™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        W/C=A×fce/(fcu.o+A×B×fce)  ™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        =0.50×32.5×1.13/(38.225+0.50×0.61×32.5×1.13)™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        =18.36/49.43™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        =0.37取水灰比为0.43™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
3)、用水量取170kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
4)、水泥用量取W/C=0.43™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        CO=WO/（W/C）=170/0.43=395Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
5)、砂率取31%™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        假定砼湿表观密度为2350Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        则S砂=（2350-395-170）×0.31=553Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
      G碎石=2350-395-170-553=1232Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
6）、初步配合比为：C:S:G:W=395:553:1232:170™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
      =1:1.40:3.19:0.43™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
7)、试拌材料用量，每盘料取0.035m3™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
      C=395×0.035=13.8Kg             S=553×0.035=19.4Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
    G=1232×0.035=43.1Kg            W=170×0.035=6.0Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        8）、增加两组关联配合比，水灰比分别增加0.05和减少0.05,用水量不变,砂率不变。™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
9）、a1增加0.05则水灰比为0.48,用水量不变W1=170Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        C1=W/(W/C)=170/0.48=354Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        D1砂率不变  31%™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        假定砼湿表观密度为2350Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        则S1 =(2350-170-354)×0.31=566Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        G1 =2350-170-354-566=1260Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        配合比为C1:S1:G1:W1=354:566:1260:170™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
                =1:1.60:3.56:0.48™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
10)、试拌材料用量，每盘料取0.035m3™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
          C1=354×0.035=12.4Kg       S1=566×0.035=19.8Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        G1=1260×0.035=44.1Kg      W1=170×0.035=6.0Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
11)、a2减少0.05则水灰比为0.38用水量不变W2=170Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        C1=W/(W/C)=170/0.38=447Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        d砂率不变   31%™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        假定砼湿表观密度为2350Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
          则S2=(2350-170-447)×0.31=537Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        G2 =2350-170-447-537=1196Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        配合比为C2:S2:G2:W2 =447:537:1196:170™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
=1:1.20:2.68:0.38™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        试拌材料用量,每盘料取0.035m3™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        C2=447×0.035=15.6Kg          S2=537×0.035=18.8Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        G2=1196×0.035=41.9Kg          W2=170×0.035=6.0Kg™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
        待28天试配强度结果出来,再决定试验配合比。™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ
详细请下载下面附件：™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ

选定水灰比、确定砂率、计算水泥用量、计算水用量、计算砂用量、计算石子用量，合计等2400™n ÊdÚ[ Ï4bbs.3c3t.comøp?¯rëÔ