泛亚体育

泛亚体育　　BUZHIBUJUEYIJINGDAOLEBEIKAOFUXIDEZUIHOUJIEDUAN，WEILEZUOHAOBEIKAOFUXI，XIAMIANYOUCHUGUOLIUXUEWANGXIAOBIANWEINIJINGXINZHUNBEILE“2020ERJIJIANZAOSHISHIZHENGSHIWUKAODIANZHISHI: HUNNINGTUSHIGONG”，CHIXUGUANZHUBENZHANJIANGKEYICHIXUHUOQUGENGDUODEKAOSHIZIXUN!

　　2020二级建造师市政实务考点知识: 混凝土施工

　　混凝土施工

　　HUNNINGTUDESHIGONGBAOKUOYUANCAILIAODEJILIANG，HUNNINGTUDEJIAOBAN、YUNSHU、JIAOZHUHEHUNNINGTUYANGHUDENGNEIRONG。

　　（一）原材料计量

　　GEZHONGJILIANGQIJUYINGANJILIANGFADEGUIDINGDINGQIJIANDING，BAOCHIJILIANGZHUNQUE。ZAIHUNNINGTUSHENGCHANGUOCHENGZHONG，YINGZHUYIKONGZHIYUANCAILIAODEJILIANGPIANCHA。DUISHASHILIAODEHANSHUILVDEJIANCE，MEIYIGONGZUOBANBUYINGSHAOYUYICI。YUQISHIGONGYINGZENGJIACEDINGCISHU，GENJUSHASHILIAOSHIJIHANSHUILIANGDIAOZHENGSHASHILIAOHESHUIDEYONGLIANG。

　　（二）混凝土搅拌、运输和浇筑

　　1.混凝土搅拌

　　HUNNINGTUBANHEWUYINGJUNYUN，YANSEYIZHI，BUDEYOULIXIHEMISHUIXIANXIANG。JIAOBANSHIJIANSHIHUNNINGTUBANHESHIDEZHONGYAOKONGZHICANSHU，SHIYONGJIXIEJIAOBANSHI，ZIQUANBUCAILIAOZHUANGRUJIAOBANJIKAISHIJIAOBANQI，ZHIKAISHIXIELIAOSHIZHI，YANXUJIAOBANDEZUIDUANSHIJIANYINGFUHEBIAO2K312014DEGUIDING。

　　注: 泛亚体育当掺入外加剂时，外加剂应调成适当浓度的溶液再掺入，搅拌时间宜延长；

　　CAIYONGFENCITOULIAOJIAOBANGONGYISHI，JIAOBANSHIJIANYINGANGONGYIYAOQIUBANLI；

　　DANGCAIYONGQITAXINGSHIDEJIAOBANSHEBEISHI，JIAOBANDEZUIDUANSHIJIANYINGANSHEBEISHUOMINGSHUDEGUIDINGBANLI，HUOJINGSHIYANQUEDING。

泛亚体育　　HUNNINGTUBANHEWUDETANLUODUYINGZAIJIAOBANDIDIANHEJIAOZHUDIDIANFENBIESUIJIQUYANGJIANCE。MEIYIGONGZUOBANHUOMEIYIDANYUANJIEGOUWUBUYINGSHAOYULIANGCI。PINGDINGSHIYINGYIJIAOZHUDIDIANDECEZHIWEIZHUN。RUHUNNINGTUBANHEWUCONGJIAOBANJICHULIAOQIZHIJIAOZHURUMODESHIJIANBUCHAOGUO15minSHI，QITANLUODUKEJINZAIJIAOBANDIDIANJIANCE。ZAIJIANCETANLUODUSHI，HAIYINGGUANCHAHUNNINGTUBANHEWUDENIANJUXINGHEBAOSHUIXING。

　　2.混凝土运输

　　（1）HUNNINGTUDEYUNSHUNENGLIYINGMANZUHUNNINGTUNINGJIESUDUHEJIAOZHUSUDUDEYAOQIU，SHIJIAOZHUGONGZUOBUJIANDUAN。

泛亚体育　　（2）YUNSONGHUNNINGTUBANHEWUDERONGQIHUOGUANDAOYINGBULOUJIANG、BUXISHUI，NEIBIGUANGHUAPINGZHENG，NENGBAOZHENGXIELIAOJISHUSONGCHANGTONG。

　　（3）HUNNINGTUBANHEWUZAIYUNSHUGUOCHENGZHONG，YINGBAOCHIJUNYUNXING，BUCHANSHENGFENCENG、LIXIDENGXIANXIANG，RUCHUXIANFENCENG、LIXIXIANXIANG，ZEYINGDUIHUNNINGTUBANHEWUJINXINGERCIKUAISUJIAOBAN。

　　（4）HUNNINGTUBANHEWUYUNSHUDAOJIAOZHUDIDIANHOU，YINGANGUIDINGJIANCEQITANLUODU，TANLUODUYINGFUHESHEJIYAOQIUHESHIGONGGONGYIYAOQIU。

　　（5）YUBANHUNNINGTUZAIXIELIAOQIANXUYAOCHANJIAWAIJIAJISHI，WAIJIAJIDECHANLIANGYINGANPEIHEBITONGZHISHUZHIXING。CHANRUWAIJIAJIHOU，YINGKUAISUJIAOBAN，JIAOBANSHIJIANYINGGENJUSHIYANQUEDING。

　　（6）YANJINZAIYUNSHUGUOCHENGZHONGXIANGHUNNINGTUBANHEWUZHONGJIASHUI。

　　（7）CAIYONGBENGSONGHUNNINGTUSHI，YINGBAOZHENGHUNNINGTUBENGLIANXUGONGZUO，SHOULIAODOUYINGYOUZUGOUDEHUNNINGTU。BENGSONGJIANXIESHIJIANBUYICHAOGUO15min。

　　3.混凝土浇筑

　　（1）浇筑前的检查

　　JIAOZHUHUNNINGTUQIAN，YINGJIANCHAMOBAN、ZHIJIADECHENGZAILI、GANGDU、WENDINGXING，JIANCHAGANGJINJIYUMAIJIANDEWEIZHI、GUIGE，BINGZUOHAOJILU，FUHESHEJIYAOQIUHOUFANGKEJIAOZHU。ZAIYUANHUNNINGTUMIANSHANGJIAOZHUXINHUNNINGTUSHI，XIANGJIEMIANYINGZAOMAO，BINGQINGXIGANJING，BIAOMIANSHIRUNDANBUDEYOUJISHUI。

　　（2）混凝土浇筑

　　1）HUNNINGTUYICIJIAOZHULIANGYAOSHIYINGGESHIGONGHUANJIEDESHIJINENGLI，YIBAOZHENGHUNNINGTUDELIANXUJIAOZHU。DUIYUDAFANGLIANGHUNNINGTUJIAOZHU，YINGSHIXIANZHIDINGJIAOZHUFANGAN。

泛亚体育　　2）HUNNINGTUYUNSHU、JIAOZHUJIJIANXIEDEQUANBUSHIJIANBUYINGCHAOGUOHUNNINGTUDECHUNINGSHIJIAN。TONGYISHIGONGDUANDEHUNNINGTUYINGLIANXUJIAOZHU，BINGYINGZAIDICENGHUNNINGTUCHUNINGZHIQIANJIANGSHANGYICENGHUNNINGTUJIAOZHUWANBI。

泛亚体育　　3）CAIYONGZHENDAOQIZHENDAOHUNNINGTUSHI，MEIYIZHENDIANDEZHENDAOYANXUSHIJIAN，YINGYIHUNNINGTUBIAOMIANCHENGXIANFUJIANG、BUCHUXIANQIPAOHEBUZAICHENLUOWEIZHUN。

　　（三）混凝土养护

　　泛亚体育（1）一般混凝土浇筑完成后，应在收浆后尽快予以覆盖和洒水养护。对干硬性混凝土、炎热天气浇筑的混凝土、大面积裸露的混凝土，有条件的可在浇筑完成后立即加设棚罩，待收浆后再予以覆盖和养护。

　　（2）SASHUIYANGHUDESHIJIAN，CAIYONGGUISUANYANSHUINI、PUTONGGUISUANYANSHUINIHUOKUANGZHAGUISUANYANSHUINIDEHUNNINGTU，BUDESHAOYU7d。CHANYONGHUANNINGXINGWAIJIAJIHUOYOUKANGSHENDENGYAOQIUYIJIGAOQIANGDUHUNNINGTU，BUSHAOYU14d。SHIYONGZHENKONGXISHUIDEHUNNINGTU，KEZAIBAOZHENGQIANGDUTIAOJIANXIASHIDANGSUODUANYANGHUSHIJIAN。CAIYONGTUSHUABOMOYANGHUJIYANGHUSHI，YANGHUJIYINGTONGGUOSHIYANQUEDING，BINGYINGZHIDINGCAOZUOGONGYI。CAIYONGSULIAOMOFUGAIYANGHUSHI，YINGZAIHUNNINGTUJIAOZHUWANCHENGHOUJISHIFUGAIYANMI，BAOZHENGMONEIYOUZUGOUDENINGJIESHUI。

泛亚体育　　（3）DANGQIWENDIYU5℃SHI，YINGCAIQUBAOWENCUOSHI，BUDEDUIHUNNINGTUSASHUIYANGHU。（TONGDATIJIHUNNINGTUYAOQIU）

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