防(Fang)冻(Dong)剂(Ji)混(Hun)凝(Ning)土(Tu)在(Zai)负(Fu)温(Wen)下(Xia)硬(Ying)化(Hua),(?)并(Bing)在(Zai)规(Gui)定(Ding)养(Yang)护(Hu)条(Tiao)件(Jian)下(Xia)达(Da)到(Dao)预(Yu)期(Qi)性(Xing)能(Neng)以(Yi)及(Ji)在(Zai)低(Di)温(Wen)下(Xia)防(Fang)止(Zhi)物(Wu)料(Liao)中(Zhong)水(Shui)分(Fen)结(Jie)冰(Bing)的(De)物(Wu)质(Zhi)。(?)使(Shi)得(De)负(Fu)温(Wen)下(Xia)混(Hun)凝(Ning)土(Tu)的(De)正(Zheng)常(Chang)施(Shi)工(Gong),(?)降(Jiang)低(Di)混(Hun)凝(Ning)土(Tu)拌(Ban)和(He)物(Wu)中(Zhong)的(De)冰(Bing)点(Dian)。(?)可(Ke)以(Yi)与(Yu)减(Jian)水(Shui)剂(Ji)、(?)引(Yin)气(Qi)剂(Ji)等(Deng)复(Fu)合(He)防(Fang)冻(Dong),(?)效(Xiao)果(Guo)更(Geng)好(Hao)。(?)用(Yong)于(Yu)各(Ge)种(Zhong)混(Hun)凝(Ning)土(Tu)工(Gong)程(Cheng),(?)在(Zai)寒(Han)冷(Leng)季(Ji)节(Jie)施(Shi)工(Gong)时(Shi)使(Shi)用(Yong)。(?)
使(Shi)混(Hun)凝(Ning)土(Tu)在(Zai)0℃(?)到(Dao)-15℃(?)的(De)负(Fu)温(Wen)环(Huan)境(Jing)中(Zhong)正(Zheng)常(Chang)水(Shui)化(Hua);(?)降(Jiang)低(Di)冰(Bing)点(Dian),(?)提(Ti)高(Gao)混(Hun)凝(Ning)土(Tu)早(Zao)期(Qi)强(Qiang)度(Du)。(?)
防(Fang)冻(Dong)剂(Ji)可(Ke)其(Qi)成(Cheng)份(Fen)可(Ke)分(Fen)为(Wei)强(Qiang)电(Dian)解(Jie)质(Zhi)无(Wu)机(Ji)盐(Yan)类(Lei)((?)氯(Lu)盐(Yan)类(Lei)、(?)氯(Lu)盐(Yan)阻(Zu)锈(Xiu)类(Lei)、(?)无(Wu)氯(Lu)盐(Yan)类(Lei))(?)、(?)水(Shui)溶(Rong)性(Xing)有(You)机(Ji)化(Hua)合(He)物(Wu)类(Lei)、(?)有(You)机(Ji)化(Hua)合(He)物(Wu)与(Yu)无(Wu)机(Ji)盐(Yan)复(Fu)合(He)类(Lei)、(?)复(Fu)合(He)型(Xing)防(Fang)冻(Dong)剂(Ji)。(?)
分(Fen)冰(Bing)点(Dian)降(Jiang)低(Di)型(Xing)和(He)表(Biao)面(Mian)活(Huo)性(Xing)剂(Ji)型(Xing)两(Liang)类(Lei)。(?)降(Jiang)低(Di)冰(Bing)点(Dian)的(De)有(You)低(Di)碳(Tan)醇(Chun)类(Lei)、(?)二(?)元(Yuan)醇(Chun)及(Ji)酰(Xian)胺(An)类(Lei)等(Deng)。(?)表(Biao)面(Mian)活(Huo)性(Xing)剂(Ji)型(Xing)能(Neng)使(Shi)物(Wu)料(Liao)在(Zai)表(Biao)面(Mian)形(Xing)成(Cheng)疏(Shu)水(Shui)性(Xing)吸(Xi)收(Shou)膜(Mo),(?)如(Ru)酸(Suan)性(Xing)磷(Lin)酸(Suan)酯(Zhi)胺(An)盐(Yan)、(?)烷(Wan)基(Ji)胺(An)、(?)脂(Zhi)肪(Fang)酸(Suan)酰(Xian)胺(An)、(?)有(You)机(Ji)酸(Suan)酯(Zhi)、(?)烷(Wan)基(Ji)丁(Ding)二(?)酰(Xian)亚(Ya)胺(An)等(Deng)。(?)如(Ru)在(Zai)混(Hun)凝(Ning)土(Tu)中(Zhong)为(Wei)掺(Chan)入(Ru)冬(Dong)季(Ji)施(Shi)工(Gong)混(Hun)凝(Ning)土(Tu)中(Zhong)能(Neng)使(Shi)混(Hun)凝(Ning)土(Tu)在(Zai)负(Fu)温(Wen)下(Xia)硬(Ying)化(Hua),(?)并(Bing)在(Zai)规(Gui)定(Ding)时(Shi)间(Jian)内(Nei)达(Da)到(Dao)足(Zu)够(Gou)防(Fang)冻(Dong)强(Qiang)度(Du)。(?)
可(Ke)制(Zhi)成(Cheng)粉(Fen)状(Zhuang)或(Huo)液(Ye)体(Ti)。(?)用(Yong)以(Yi)防(Fang)止(Zhi)混(Hun)凝(Ning)土(Tu)在(Zai)冬(Dong)季(Ji)负(Fu)温(Wen)下(Xia)施(Shi)工(Gong)产(Chan)生(Sheng)的(De)冻(Dong)涨(Zhang)破(Po)坏(Huai)。(?)使(Shi)得(De)负(Fu)温(Wen)下(Xia)混(Hun)凝(Ning)土(Tu)的(De)正(Zheng)常(Chang)施(Shi)工(Gong)。(?)其(Qi)主(Zhu)要(Yao)成(Cheng)分(Fen)为(Wei)亚(Ya)硝(Xiao)酸(Suan)钠(Na)、(?)碳(Tan)酸(Suan)盐(Yan)、(?)氯(Lu)化(Hua)钙(Gai)、(?)亚(Ya)硝(Xiao)酸(Suan)钙(Gai)、(?)尿(Niao)素(Su)、(?)乙(Yi)二(?)醇(Chun)等(Deng)。(?)它(Ta)们(Men)可(Ke)以(Yi)降(Jiang)低(Di)混(Hun)凝(Ning)土(Tu)拌(Ban)和(He)物(Wu)中(Zhong)的(De)冰(Bing)点(Dian)。(?)也(Ye)可(Ke)以(Yi)与(Yu)减(Jian)水(Shui)剂(Ji)、(?)引(Yin)气(Qi)剂(Ji)等(Deng)复(Fu)合(He)防(Fang)冻(Dong),(?)效(Xiao)果(Guo)更(Geng)好(Hao)。(?)
防(Fang)冻(Dong)组(Zu)分(Fen)可(Ke)改(Gai)变(Bian)混(Hun)凝(Ning)土(Tu)液(Ye)相(Xiang)浓(Nong)度(Du),(?)降(Jiang)低(Di)冰(Bing)点(Dian),(?)使(Shi)得(De)混(Hun)凝(Ning)土(Tu)在(Zai)负(Fu)温(Wen)下(Xia)有(You)液(Ye)相(Xiang)存(Cun)在(Zai),(?)使(Shi)水(Shui)泥(Ni)仍(Reng)能(Neng)继(Ji)续(Xu)水(Shui)化(Hua)。(?)
减(Jian)水(Shui)组(Zu)分(Fen)可(Ke)减(Jian)少(Shao)混(Hun)凝(Ning)土(Tu)拌(Ban)合(He)用(Yong)水(Shui)量(Liang),(?)从(Cong)而(?)减(Jian)少(Shao)了(Liao)混(Hun)凝(Ning)土(Tu)中(Zhong)的(De)成(Cheng)冰(Bing)量(Liang),(?)并(Bing)使(Shi)冰(Bing)晶(Jing)粒(Li)度(Du)细(Xi)小(Xiao)且(Qie)均(Jun)匀(Yun)分(Fen)散(San),(?)减(Jian)小(Xiao)对(Dui)混(Hun)凝(Ning)土(Tu)的(De)破(Po)坏(Huai)应(Ying)力(Li)。(?)
引(Yin)气(Qi)组(Zu)分(Fen)是(Shi)引(Yin)入(Ru)一(Yi)定(Ding)量(Liang)的(De)微(Wei)小(Xiao)封(Feng)闭(Bi)气(Qi)泡(Pao),(?)减(Jian)缓(Huan)冻(Dong)胀(Zhang)应(Ying)力(Li)。(?)
早(Zao)强(Qiang)组(Zu)分(Fen)是(Shi)能(Neng)提(Ti)高(Gao)混(Hun)凝(Ning)土(Tu)早(Zao)期(Qi)强(Qiang)度(Du),(?)增(Zeng)强(Qiang)混(Hun)凝(Ning)土(Tu)抵(Di)抗(Kang)冰(Bing)冻(Dong)的(De)破(Po)坏(Huai)能(Neng)力(Li)。(?)
亚(Ya)硝(Xiao)酸(Suan)盐(Yan)一(Yi)类(Lei)的(De)阻(Zu)锈(Xiu)剂(Ji)可(Ke)以(Yi)在(Zai)一(Yi)定(Ding)程(Cheng)度(Du)上(Shang)防(Fang)止(Zhi)氯(Lu)盐(Yan)对(Dui)钢(Gang)筋(Jin)的(De)锈(Xiu)蚀(Shi)作(Zuo)用(Yong),(?)同(Tong)时(Shi)兼(Jian)具(Ju)防(Fang)冻(Dong)与(Yu)早(Zao)强(Qiang)作(Zuo)用(Yong)。(?)
以(Yi)上(Shang)就(Jiu)是(Shi)
成(Cheng)都(Du)中(Zhong)道(Dao)弘(Hong)建(Jian)材(Cai)小(Xiao)贴(Tie)士(Shi),(?)希(Xi)望(Wang)有(You)所(Suo)帮(Bang)助(Zhu)~