C25混凝土配比 c25自拌混凝土配合比表

c25\u6df7\u51dd\u571f\u914d\u5408\u6bd4

C25\u6df7\u51dd\u571f\u6c34\u7070\u6bd4\u57280.55\u5de6\u53f3\uff0c\u6c34\u6ce5\u7528300\u5de6\u53f3\u5c31\u591f\u4e86\uff0cPO42.5\u7684\u6c34\u6ce5\u3002
\u914d\u5408\u6bd4\u8981\u6839\u636e\u7802\u3001\u77f3\u5b50\u7684\u7c97\u7ec6\u5927\u5c0f\u53ca\u6df7\u51dd\u571f\u574d\u843d\u5ea6\u8981\u6c42\u6765\u786e\u5b9a\u6c34\u6ce5\u7528\u91cf\uff0c\u8981\u7b80\u5355\u7684\u8bf4\u67d0\u4e2a\u6807\u53f7\u6df7\u51dd\u571f\u7684\u914d\u5408\u6bd4\u662f\u591a\u5c11\u662f\u4e0d\u79d1\u5b66\u7684\u3002
\u6240\u8c13\u6df7\u51dd\u571f\u65bd\u5de5\u914d\u5408\u6bd4\u662f\u6307\u6307\u6df7\u51dd\u571f\u4e2d\u5404\u7ec4\u6210\u6750\u6599\u4e4b\u95f4\u7684\u6bd4\u4f8b\u5173\u7cfb\u3002
\u8c03\u6574\u6b65\u9aa4\uff1a\u8bbe\u8bd5\u9a8c\u5ba4\u914d\u5408\u6bd4\u4e3a\u80f6\u51dd\u6750\u6599\uff1a\u6c34\u6ce5\uff1a\u6c34\uff1a\u7802\u5b50\uff1a\u77f3\u5b50=1\uff1ax\uff1ay\uff1az\uff0c\u73b0\u573a\u7802\u5b50\u542b\u6c34\u7387\u4e3am\uff0c\u77f3\u5b50\u542b\u6c34\u7387\u4e3an\uff0c\u5219\u65bd\u5de5\u914d\u5408\u6bd4\u8c03\u6574\u4e3a\uff1a 1\uff1a(x-y*m-z*n)\uff1ay*\uff081+m\uff09\uff1az*\uff081+n\uff09\u3002

\u6269\u5c55\u8d44\u6599\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u662f\u6df7\u51dd\u571f\u5de5\u7a0b\u4e2d\u5f88\u91cd\u8981\u7684\u4e00\u9879\u5de5\u4f5c\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u6df7\u51dd\u571f\u7684\u987a\u5229\u65bd\u5de5\u3001\u6df7\u51dd\u571f\u5de5\u7a0b\u7684\u8d28\u91cf\u548c\u6df7\u51dd\u571f\u5de5\u7a0b\u7684\u6210\u672c\u3002
\u8bbe\u8ba1\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u7684\u57fa\u672c\u8981\u6c42\uff1a
1\u3001\u6ee1\u8db3\u6df7\u51dd\u571f\u8bbe\u8ba1\u7684\u5f3a\u5ea6\u7b49\u7ea7\u3002
2\u3001\u6ee1\u8db3\u65bd\u5de5\u8981\u6c42\u7684\u6df7\u51dd\u571f\u548c\u6613\u6027\u3002
3\u3001\u6ee1\u8db3\u6df7\u51dd\u571f\u4f7f\u7528\u8981\u6c42\u7684\u8010\u4e45\u6027\u3002
4\u3001\u6ee1\u8db3\u4e0a\u8ff0\u6761\u4ef6\u4e0b\u505a\u5230\u8282\u7ea6\u6c34\u6ce5\u548c\u964d\u4f4e\u6df7\u51dd\u571f\u6210\u672c\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u6df7\u51dd\u571f\u914d\u5408\u6bd4

C25
\u6c34\uff1a175kg\u6c34\u6ce5\uff1a398kg \u7802\uff1a566kg \u77f3\u5b50\uff1a1261kg
\u914d\u5408\u6bd4\u4e3a\uff1a0.44:1:1.42:3.17
\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u662f\u6307\u6df7\u51dd\u571f\u4e2d\u5404\u7ec4\u6210\u6750\u6599\uff08\u6c34\u6ce5\u3001\u6c34\u3001\u7802\u3001\u77f3\uff09\u4e4b\u95f4\u7684\u6bd4\u4f8b\u5173\u7cfb\u3002
\u6709\u4e24\u79cd\u8868\u793a\u65b9\u6cd5\uff1a
\u4e00\u79cd\u662f\u4ee51\u7acb\u65b9\u7c73\u6df7\u51dd\u571f\u4e2d\u5404\u79cd\u6750\u6599\u7528\u91cf\uff0c\u5982\u6c34\u6ce5300\u5343\u514b\uff0c\u6c34180\u5343\u514b\uff0c\u7802690\u5343\u514b\uff0c\u77f3\u5b501260\u5343\u514b\uff1b
\u53e6\u4e00\u79cd\u662f\u7528\u5355\u4f4d\u8d28\u91cf\u7684\u6c34\u6ce5\u4e0e\u5404\u79cd\u6750\u6599\u7528\u91cf\u7684\u6bd4\u503c\u53ca\u6df7\u51dd\u571f\u7684\u6c34\u7070\u6bd4\u6765\u8868\u793a\uff0c\u4f8b\u5982\u524d\u4f8b\u53ef\u5199\u6210\uff1aC:S:G=1:2.3:4.2,W/C=0.6\u3002

\u6269\u5c55\u8d44\u6599
\u6240\u8c13\u6df7\u51dd\u571f\u65bd\u5de5\u914d\u5408\u6bd4\u662f\u6307\u6df7\u51dd\u571f\u4e2d\u5404\u7ec4\u6210\u6750\u6599\u4e4b\u95f4\u7684\u6bd4\u4f8b\u5173\u7cfb\u3002
\u8c03\u6574\u6b65\u9aa4\uff1a\u8bbe\u8bd5\u9a8c\u5ba4\u914d\u5408\u6bd4\u4e3a\uff1a\u6c34\u6ce5\uff1a\u6c34\uff1a\u7802\u5b50\uff1a\u77f3\u5b50=1\uff1ax\uff1ay\uff1az\uff0c\u73b0\u573a\u7802\u5b50\u542b\u6c34\u7387\u4e3am\uff0c\u77f3\u5b50\u542b\u6c34\u7387\u4e3an\uff0c\u5219\u65bd\u5de5\u914d\u5408\u6bd4\u8c03\u6574\u4e3a\uff1a 1\uff1a(x-y*m-z*n)\uff1ay*\uff081+m\uff09\uff1az*\uff081+n\uff09\u3002
\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u662f\u6df7\u51dd\u571f\u5de5\u7a0b\u4e2d\u5f88\u91cd\u8981\u7684\u4e00\u9879\u5de5\u4f5c\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u6df7\u51dd\u571f\u7684\u987a\u5229\u65bd\u5de5\u3001\u6df7\u51dd\u571f\u5de5\u7a0b\u7684\u8d28\u91cf\u548c\u6df7\u51dd\u571f\u5de5\u7a0b\u7684\u6210\u672c\u3002
\uff081\uff09\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u4f9d\u636e\uff1a
\u300a\u666e\u901a\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u89c4\u7a0b\u300b\uff08JGJ 55\u20132011\uff09 \u300a\u6df7\u51dd\u571f\u7ed3\u6784\u65bd\u5de5\u8d28\u91cf\u9a8c\u6536\u89c4\u8303\u300b\uff08GB 50204\u2013 2015\uff09 \u300a\u6df7\u51dd\u571f\u8d28\u91cf\u63a7\u5236\u6807\u51c6\u300b\uff08GB 50164\u20132011\uff09
\u300a\u666e\u901a\u6df7\u51dd\u571f\u62cc\u548c\u7269\u6027\u80fd\u8bd5\u9a8c\u65b9\u6cd5\u300b\uff08GB/T 50080\u20132002\uff09 \u300a\u666e\u901a\u6df7\u51dd\u571f\u529b\u5b66\u6027\u80fd\u8bd5\u9a8c\u65b9\u6cd5\u300b\uff08GB/T 50081\u20132002\uff09
\u300a\u6df7\u51dd\u571f\u5f3a\u5ea6\u68c0\u9a8c\u8bc4\u5b9a\u6807\u51c6\u300b\uff08GB/T 50107\u20132010\uff09\u548c\u7802\u3001\u77f3\u3001\u5916\u52a0\u5242\u3001\u63ba\u5408\u6599\u7684\u76f8\u5173\u6807\u51c6\u3002
\uff082\uff09\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u7684\u539f\u5219\uff1a
1\uff0e\u6df7\u51dd\u571f\u62cc\u5408\u7269\u7684\u548c\u6613\u6027\u80fd\u591f\u6ee1\u8db3\u65bd\u5de5\u7684\u9700\u8981\uff1b
2\uff0e\u6df7\u51dd\u571f\u7684\u5f3a\u5ea6\u80fd\u591f\u6ee1\u8db3\u8bbe\u8ba1\u7684\u8981\u6c42\uff1b
3\uff0e\u6df7\u51dd\u571f\u5e94\u6709\u826f\u597d\u7684\u8010\u4e45\u6027\uff1b
4. \u5728\u6ee1\u8db3\u4e0a\u8ff0\u7684\u8981\u6c42\u65f6\uff0c\u5c3d\u91cf\u51cf\u5c11\u6210\u672c\uff0c\u589e\u52a0\u6548\u76ca\u3002
2000\u5e7412\u670828\u65e5\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\u5efa\u8bbe\u90e8\u6279\u51c6\uff0c\u4e8e2001\u5e744\u67081\u65e5\u8d77\u65bd\u884c\u884c\u4e1a\u6807\u51c6\u300a\u666e\u901a\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u89c4\u7a0b\u300b\uff08JGJ 55\u20132000\uff09\u3002\u539f\u884c\u4e1a\u6807\u51c6\u300a\u666e\u901a\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u89c4\u7a0b\u300b\uff08JGJ/T 55-96\uff09\u540c\u65f6\u5e9f\u6b62\u3002
\u8fd9\u6b21\u6539\u6807,\u4e3b\u8981\u662f\u5bf9\u539f\u884c\u4e1a\u6807\u51c6\u300a\u666e\u901a\u6df7\u51dd\u571f\u914d\u5408\u6bd4\u8bbe\u8ba1\u89c4\u7a0b\u300b(JGJ/T55-96)\u8fdb\u884c\u4e86\u4fee\u8ba2\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u6df7\u51dd\u571f\u914d\u5408\u6bd4

一、c25混凝土配合比 1、C25混凝土配合比水泥 :水  :砂  : 碎石 372 :175 :593 : 1260 1 :0.47 :1.59 : 3.39 2、调整水灰比调整水灰比为0.42,用水量为175kg,水泥用量为Mco=175/0.42=417kg,按重量法计算砂、石用量分别为:Mso==579kg,Mgo=1229kg 3、混凝土配合比的试配、调整与确定试用配合比1和2,分别进行试拌:配合比1:水泥:水:砂:碎石 = 372:175:593:1260 = 1:0.47:1.59:3.39;试拌材料用量为:水泥:水:砂:碎石 = 8.5:4.0:13.52:28.82kg;拌和后,坍落度为30mm,达到设计要求;配合比2: 水泥:水:砂:碎石 = 417:175:579:1229 = 1:0.42:1.39:2.95 试拌材料用量为:水泥:水:砂:碎石 =9.6:4.03:13.34:28.42kg 拌和后,坍落度仅20mm,达不到设计要求,故保持水灰比不变,增加水泥用量500g,增加拌和用水210g,再拌和后,坍落度达到35mm,符合设计要求。此时,实际各材料用量为:水泥:水:砂:碎石 = 10.1:4.24:13.34:28.42kg 经强度检测(数据见试表),第1组、2组配合比强度均符合试配强度要求,综合经济效益,确定配合比为第1组,即:水泥 :水 :砂  :碎石 1 :0.47 : 1.59 :3.39 372 :175 :593 :1260kg/m3





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