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液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)价(Jia)格(Ge)

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什(Shi)么(Me)样(Yang)的(De)粉(Fen)体(Ti)速(Su)凝(Ning)剂(Ji)可(Ke)以(Yi)合(He)格(Ge)

您(Nin)的(De)当(Dang)前(Qian)位(Wei)置(Zhi):(?) 首(Shou) 页(Ye) >> 资(Zi)讯(Xun)中(Zhong)心(Xin) >> 行(Xing)业(Ye)新(Xin)闻(Wen)

什(Shi)么(Me)样(Yang)的(De)粉(Fen)体(Ti)速(Su)凝(Ning)剂(Ji)可(Ke)以(Yi)合(He)格(Ge)

发(Fa)布(Bu)日(Ri)期(Qi):(?)2024-01-31 作(Zuo)者(Zhe):(?) 点(Dian)击(Ji):(?)

  粉(Fen)体(Ti)速(Su)凝(Ning)剂(Ji)是(Shi)一(Yi)种(Zhong)能(Neng)促(Cu)进(Jin)混(Hun)凝(Ning)土(Tu)迅(Xun)速(Su)凝(Ning)聚(Ju)硬(Ying)化(Hua)的(De)外(Wai)加(Jia)剂(Ji)是(Shi)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)重(Zhong)要(Yao)的(De)组(Zu)成(Cheng)资(Zi)料(Liao)。(?)近(Jin)年(Nian)来(Lai),无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji)成(Cheng)为(Wei)速(Su)凝(Ning)剂(Ji)研(Yan)讨(Tao)的(De)新(Xin)方(Fang)向(Xiang)。(?)根(Gen)据(Ju)欧(Ou)洲(Zhou)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)标(Biao)准(Zhun)(《(?) European Specificationfor Sprayed Concrete Guidelines》(?))对(Dui)速(Su)凝(Ning)剂(Ji)的(De)定(Ding)义(Yi),(?)Na0含(Han)量(Liang)不(Bu)超(Chao)过(Guo)1%的(De)速(Su)凝(Ning)剂(Ji)为(Wei)无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji),其(Qi)余(Yu)为(Wei)碱(Jian)性(Xing)速(Su)凝(Ning)剂(Ji)。(?)掺(Chan)加(Jia)无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji)的(De)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)具(Ju)有(You)后(Hou)期(Qi)抗(Kang)压(Ya)强(Qiang)度(Du)保(Bao)有(You)率(Lu)高(Gao)、(?)耐(Nai)久(Jiu)性(Xing)好(Hao)和(He)安(An)全(Quan)环(Huan)保(Bao)等(Deng)优(You)势(Shi)在(Zai)国(Guo)外(Wai)地(Di)道(Dao)工(Gong)程(Cheng)中(Zhong)得(De)到(Dao)了(Liao)广(Guang)泛(Fan)运(Yun)用(Yong)。(?)而(?)我(Wo)国(Guo)现(Xian)行(Xing)标(Biao)准(Zhun)《(?)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)用(Yong)速(Su)凝(Ning)剂(Ji)》(?)并(Bing)未(Wei)给(Gei)出(Chu)无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji)的(De)明(Ming)确(Que)定(Ding)义(Yi)及(Ji)功(Gong)能(Neng)要(Yao)求(Qiu),因(Yin)而(?),(?)国(Guo)内(Nei)无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji)运(Yun)用(Yong)案(An)例(Li)较(Jiao)少(Shao)。(?)

  目(Mu)前(Qian)我(Wo)国(Guo)铁(Tie)路(Lu)地(Di)道(Dao)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)用(Yong)液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)多(Duo)以(Yi)铝(Lu)酸(Suan)盐(Yan)硅(Gui)酸(Suan)盐(Yan)类(Lei)碱(Jian)性(Xing)速(Su)凝(Ning)剂(Ji)为(Wei)主(Zhu)。(?)中(Zhong)国(Guo)铁(Tie)道(Dao)科(Ke)学(Xue)研(Yan)讨(Tao)院(Yuan)选(Xuan)取(Qu)目(Mu)前(Qian)施(Shi)工(Gong)中(Zhong)运(Yun)用(Yong)的(De)20种(Zhong)液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)进(Jin)行(Xing)匀(Yun)质(Zhi)性(Xing)检(Jian)测(Ce)速(Su)凝(Ning)剂(Ji)总(Zong)碱(Jian)含(Han)量(Liang)均(Jun)在(Zai)10%~20%,(?)pH值(Zhi)接(Jie)近(Jin)14,属(Shu)强(Qiang)碱(Jian)性(Xing)。(?)该(Gai)类(Lei)速(Su)凝(Ning)剂(Ji)具(Ju)有(You)掺(Chan)量(Liang)小(Xiao)、(?)凝(Ning)聚(Ju)时(Shi)间(Jian)快(Kuai)等(Deng)长(Chang)处(Chu)但(Dan)是(Shi)在(Zai)水(Shui)泥(Ni)水(Shui)化(Hua)过(Guo)程(Cheng)中(Zhong)引(Yin)入(Ru)了(Liao)很(Hen)多(Duo)碱(Jian)性(Xing)物(Wu)质(Zhi),导(Dao)致(Zhi)混(Hun)凝(Ning)土(Tu)后(Hou)期(Qi)强(Qiang)度(Du)丢(Diu)失(Shi)严(Yan)峻(Jun),(?)耐(Nai)久(Jiu)性(Xing)下(Xia)降(Jiang),(?)且(Qie)对(Dui)施(Shi)工(Gong)人(Ren)员(Yuan)的(De)眼(Yan)睛(Jing)和(He)皮(Pi)肤(Fu)有(You)腐(Fu)蚀(Shi)性(Xing)伤(Shang)害(Hai)。(?)

  针(Zhen)对(Dui)上(Shang)述(Shu)问(Wen)题(Ti)采(Cai)用(Yong)无(Wu)碱(Jian)液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)与(Yu)碱(Jian)性(Xing)液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)进(Jin)行(Xing)同(Tong)条(Tiao)件(Jian)比(Bi)照(Zhao)实(Shi)验(Yan),(?)研(Yan)讨(Tao)两(Liang)种(Zhong)液(Ye)体(Ti)速(Su)凝(Ning)剂(Ji)对(Dui)喷(Pen)发(Fa)混(Hun)凝(Ning)土(Tu)抗(Kang)压(Ya)强(Qiang)度(Du)、(?)体(Ti)积(Ji)稳(Wen)定(Ding)性(Xing)及(Ji)抗(Kang)冻(Dong)功(Gong)能(Neng)的(De)影(Ying)响(Xiang)规(Gui)律(Lu),为(Wei)无(Wu)碱(Jian)速(Su)凝(Ning)剂(Ji)在(Zai)高(Gao)速(Su)铁(Tie)路(Lu)地(Di)道(Dao)初(Chu)期(Qi)支(Zhi)护(Hu)的(De)推(Tui)广(Guang)运(Yun)用(Yong)供(Gong)给(Gei)依(Yi)据(Ju)。(?)

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