2011標準混凝土配合比快速自動計算表

水泥混凝土配合比快速自動計算表,,,,,,,,,,,,,

承包單位：,,,,,,,,,試樣編號：,,,,

監(jiān)理單位：,,,,,,,,,記錄編號：,,,,

結(jié)構(gòu)名稱,,,,,,,,,設(shè)計標號,,,,

使用部位,,,,,,,,,計算日期,,,,

1）、配合比設(shè)計依據(jù)：《普通混凝土配合比設(shè)計規(guī)程》JGJ55-2011；,,,,,,,,,,,,,

2）、材料選擇：水泥采用,,,,"?ce,g",P·O,42.5,級；,水泥強度富余系數(shù),,,γc,1.09,%。

中砂（河砂）；5～25mm連續(xù)級配卵石及飲用水；,,,,,,,,,,,,,

高效減水劑、膨脹劑、F類Ⅱ級粉媒灰、S95級礦粉。,,,,,,,,,,,,,

1、確定試配強度：,,,,,,,,,,,,,

"?cu,k",10,"?cu,0","=?cu,k+1.645δ",,,16.58,,強度標準差,,δ,4.0,,

2、計算水膠比：,,,"W/B=aa×?b/(?cu,0＋aa×ab×?b)",,,,,,=,0.761691557,,,

碎石,aa,ab,卵石,aa,ab,,?ce,"=γc*?ce,g",,,46.325,,

,0.53,0.2,,0.49,0.13,,?b,=γf*γs*?ce,,,28.6056875,,

粉煤灰影響系數(shù)γf和礦粉影響系數(shù)γs,,,,,,,,,,,,,

種類摻量（%）,,,,粉煤灰影響系數(shù)γf,,,,礦粉影響系數(shù)γs,,,,,

0,,,,1.00,,,,1.00,,,,,

10,,,,0.85～0.95,,,,1.00,,,,,

20,,,,0.75～0.85,,,,0.95～1.00,,,,,

30,,,,0.65～0.75,,,,0.90～1.00,,,,,

40,,,,0.55～0.65,,,,0.80～0.90,,,,,

50,,,,-,,,,0.70～0.85,,,,,

注:1采用I級粉煤灰宜取上限值。,,,,,,,,,,,,,

"2采用S75級礦粉宜取下限值,采用S95礦粉宜取上限值,采用S105級礦粉可取上限值加0.05。",,,,,,,,,,,,,

3當超出摻量時，粉煤灰和礦粉影響系數(shù)應(yīng)經(jīng)試驗確定。,,,,,,,,,,,,,

3、根據(jù)坍落度及碎石最大粒徑選取用水量：,,,,,,,,,,,,,

拌合物稠度,,,卵石最大粒徑,,,碎石最大粒徑,,,,,,,

項目,,指標,10,20,40,16,20,40,,,,,

維勃稠度mm,,15~20,175,160,145,180,170,155,,,,,

,,10~15,180,165,150,185,175,160,,,,,

,,5~10,185,170,155,190,180,165,,,,,

坍落度mm,,10~30,190,170,150,200,185,165,,,,,

,,30~50,200,180,160,210,195,175,,,,,

,,50~70,210,190,170,220,205,185,,,,,

,,70~90,215,195,175,230,215,195,,,,,

"a.當水灰比在0.4~0.8范圍時,按上表取值.",,,,,,,,,,,,,

b.當水灰比小于0.4或大于0.8的混凝土及采用特殊工藝的混凝土用水量由試驗確定。,,,,,,,,,,,,,

"c.流動性，大流動性混凝土的用水量，以上表90mm的用水量為基礎(chǔ)，每增加20mm用水量增加5kg,",,,,,,,,,,,,,

計算未摻外加劑時混凝土的用水量。,,,,,,,,,,,,,

摻外加劑時混凝土的用水量按mwa=mwo(1-β),,,,,,,,,,,,,

依據(jù)施工要求坍落度設(shè)計為150～230mm，MW0（減水劑減水率20%～40%）,,,,,,,,,,,,,

未摻減水劑用水量,MWO,240.8333333,kg,公式：mwo=215+(N36-90)/20*5,,,,,,設(shè)計坍落度,,,200

摻減水劑用水量,MWa,190.2583333,kg,公式：mwa=mwo(1-β),,,,,,減水劑減水率β,,,21%

調(diào)整用水量,,185,kg,,,,,,,,,,

4、計算膠材用量(W/B按經(jīng)驗取值)：Mb0=MW0/W/B,,,,,,,,,,,,,

膠材用量:,,243,kg,水用量:,,185,kg,,,,,,

5、確定砂率為βs,,,,,,,,,,,,,

混凝土沙率取值表,,,,,,,,,,,,,

水膠比（W/B),,卵石最大粒徑(%),,,,,,碎石最大粒徑(%),,,,,

,,10,,20,,40,,16,,20,,40,

0.40,,26,32,25,31,24,30,30,35,29,34,27,32

0.50,,30,35,29,34,28,33,33,38,32,37,30,35

0.60,,33,38,32,37,31,36,36,41,35,40,33,38

0.70,,36,41,35,40,34,39,39,44,38,43,36,41

"a.坍落度小于或等于６０mm,按上表取值",,,,,,,,,,,,,

"b.坍落度大于或等于１００mm,按上表取值基礎(chǔ)上按坍落度每增加２０mm,砂率增大１％予以調(diào)整．",,,,,,,,,,,,,

"c.坍落度大于６０mm或小于１００mm的混凝土及摻外加劑和摻合料,砂率經(jīng)試驗確定．",,,,,,,,,,,,,

砂率為βs,,42%,,,,,,,,,,,

6、采用絕對體積法計算砂、石用量：,,,,,,,,,,,,,

Mco/3.1+Mso/2.65+Mgo/2.7+Mwo+10=1000Mso=,,,,,,,,,,砂Mso,818,kg,

Mso/Mso+Mgo=βsMgo=,,,,,,,,,,石Mgo,1129,kg,

7、摻粉媒灰、膨脹劑后水泥用量：水泥=Wco-Wco*,,,,,,,0.1,粉媒灰替換量-Wco*,,,0,膨脹劑摻量,

,-Wco*,0.2,礦粉摻量,,,,,,,,,,

水泥用量,,170,kg,,,,,,,,,,

8、粉媒灰用量,,,,,,,24,kg,,,,,

9、膨脹劑用量,,,,,,,0,kg,,,,,

10、礦粉用量,,,,,,,49,kg,,,,,

11、減水劑用量（摻量為膠凝材料的%）：,,,,,,,4.46900057,kg,,,摻量,2.3%,

12、其它材料用量不變，則初步配合比為：,,,,,,,,,,,,,

水泥,河砂,碎石,粉煤灰,膨脹劑,礦粉,減水劑,水,容重,,,,,

170,818,1129,24,0,49,4.46900057,185,2379,,,,,

1.00,4.81,6.64,0.14,0.00,0.29,0.03,1.09,