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铁路高性能混凝土外加剂的适应性研ç©?/h1>
发布时间ï¼?019-04-23   å‘布者:admin

ã€(mo)(mo)€ã€(mo)(mo)€åœ(she)(she)¨é«˜é€Ÿé(yi)“(shan)路工程建设è(juan)¿‡ç¨‹ä(yu)¸­(fu)(fu)ï¼(ben)Œä(wu)¼šç”¨åˆ°å¾ˆå(guo)¤šç§(zhou)æ–½(dan)å·(chen)(chen)¥åŽŸææ–™ï¼(ben)Œè(Œè)¿™äº(bang)›ææ–™æ‰€å…·æœ‰çš(fei)„性能(shi)将直接影(jiang)å“(yu)åˆ°é“è(ci)·¯å·(chen)(chen)¥ç¨‹å»ºè(hong)®¾è´¨é‡ã€(mo)(mo)‚å(xiao)(xiao)…¶ä¸­ï¼Œ(ren)(ren)(ren)最基本çš(fei)„æ–½(dan)å·(chen)(chen)¥ææ–™å°±æ˜(tuan)¯æ··å‡åœŸï¼(ben)Œæ˜¯æ•´ä¸ªå·(chen)(chen)¥ç¨‹å»ºè(hong)®¾å¿(jian)…不å(hong)(hong)¯å°‘(gan)çš(fei)„,(ren)(ren)(ren)åœ(she)(she)¨å®žé™…æ–½(dan)å·(chen)(chen)¥ä¸­(fu)(fu)ï¼(ben)Œä(wu)¸ºäº(bang)†é…ç½®å‡ºé«˜æ€§èƒ½(shi)æ··å(feng)(feng)‡åœ(she)(she)Ÿï(qian)¼Œ(ren)(ren)(ren)就需(ying)è¦(xia)(xia)å¾€æ··å(feng)(feng)‡åœ(she)(she)Ÿé(yi)‡Œé¢æ·»åŠ å¤–加剂ï¼(ben)Œè(Œè)€Œæ··å‡åœŸå’Œå¤–加剂之间æ˜(tuan)¯å…·æœ‰ä¸€å®šé(zheng)€‚å(xiao)(xiao)º”(pai)(pai)æ€(hao)§çš„(qing)ï¼(ben)Œè(Œè)‹¥é€‚å(xiao)(xiao)º”(pai)(pai)æ€(hao)§å¼ºï¼(ben)Œå°±å(hong)(hong)¯ä»¥ç¡®ä¿æ··å(feng)(feng)‡åœ(she)(she)Ÿçš„(qing)æ€(hao)§èƒ½(shi)满足æ (luo)‡å(jiong)‡†(ai)è¦(xia)(xia)æ±‚ã€(mo)(mo)‚为äº(bang)†ä¿è¯é“(shan)路工程ç(xu)š„(qing)建è(hong)®¾è´¨é‡ï¼(ben)Œå°±éœ(an)€è¦(xia)(xia)ç ”(ye)ç©(chu)¶é«˜æ€(hao)§èƒ½(shi)æ··å(feng)(feng)‡åœ(she)(she)Ÿä¸­(fu)(fu)çš(fei)„外加剂适å(xiao)(xiao)º”(pai)(pai)æ€(hao)§æ–¹(nan)面的(qing)问题ï¼(ben)Œå¹¶é’ˆå(guo)¯¹è¿(ma)(ma)™ä(yu)º›é—®é¢˜ï¼(ben)Œé‡‡å(hong)(hong)–有效å(guo)œ°æŽªæ–½(dan)解决è¿(ma)(ma)™ä(yu)º›å­(ying)˜åœ¨çš(fei)„问题,(ren)(ren)(ren)è¿(ma)(ma)™åŒæ (luo)·ä(feng)¹Ÿæ˜(tuan)¯çŽ°é˜¶æ®µé“è(ci)·¯å»ºè(hong)®¾å(ti)•ä½éœ(an)€è¦(xia)(xia)é‡ç‚(liao)¹è§£å†³çš„(qing)问题ã€(mo)(mo)?

ã€(mo)€ã€(mo)€1聚羧é…(yan)¸æ··凝å(fen)œŸå¤–加å‰(ji)‚所具有的适å(xiao)º”æ€(hao)§é—®é¢(chui)?/span>

  外å(yi)Š (ji)å‰(ji)‚适应(pai)(pai)(pai)性就是当外å(yi)Š (ji)å‰(ji)‚处于相同条ä»(xi)(xi)¶ç(duo)š„(qing)时å(duo)€™ï¼Œ(ren)由于水泥ä¸(juan)åŒè€(yao)Œä(wu)½¿å¾—ä(zhan)½¿ç”¨æ•ˆ(han)果存在差异性,(ren)有æ(qun)—¶å‡ ä¹Ž(¹Ž)å®(yue)Œå(han)…¨(guai)(guai)ä¸(juan)åŒã€‚近年来ï¼(ben)Œè(Œè)šç¾§é…¸åœ¨é“è·¯å»ºè®¾ä¸­è¢«å¹¿æ³›åº”(pai)(pai)(pai)用,(ren)在高铁工程建设中çš(fei)(fei)„å(fan)®ž(lin)éª(nan)Œè(Œè)¡¨æ˜Žï¼Œ(ren)其适应(pai)(pai)(pai)性比è¾(cha)ƒå·®ï¼(ben)Œæ‰€å«çš„(qing)混凝(ji)土原æ(shou)æ–™ç»(zi)(zi)„å(fan)ˆ†ä»(xi)(xi)¥åŠäº§åœ°ç­(jiang)‰å› (› )素发生ç(xi)š„(qing)ç»(zi)(zi)†å¾®æ”(lu)¹å(gui)˜éƒ(ting)½ä¼šä½¿æ–°æ‹(ma)Œæ··å‡å(fen)œŸæ‰€å…·æœ‰çš(fei)(fei)„性能æ”(lu)¹å(gui)˜ï¼(ben)Œè(Œè)¯¥ç‰(jian)¹ç(gui)‚¹ä¸(juan)Žè˜(nao)系减水å(cun)‰‚(qiang)适应(pai)(pai)(pai)性以(hu)及稳å®(yue)šæ€§è¾ƒå¼ºç‰¹ç‚¹æ˜¯å®(yue)Œå(han)…¨(guai)(guai)ä¸(juan)åŒçš(fei)(fei)„。想要è(ci)§£å†(cong)³è¯¥é—®é¢˜ï¼(ben)Œå(han)°±ä¸(juan)å¯ä»(xi)(xi)¥å±€é™(yao)äºŽæ­é…è¯•éªŒç»(zi)(zi)„å(fan)ˆ†ä»(xi)(xi)¥åŠæ›´æ¢æ(shou)æ–™æ–¹é(gui)¢ï¼(ben)Œå(han)º”(pai)(pai)(pai)该突破传ç»(zi)(zi)Ÿæ€ç»´æ–¹å(gui)¼(fang)ï¼(ben)Œå(han)œ¨(œ¨)发展、整(qi)体以(hu)及å(mian)®è§‚视角上进一步探索以(hu)及研究ã€?/span>

  2å¯(fen)¹é€‚应性造成影响(chen)的ä(qiao)¸»è¦å› ç´?/span>

ã€(mo)€ã€(mo)€2.1å¤(chan)–å(yi)Š å‰‚本(long)身的因素

ã€(mo)(mo)€ã€(mo)(mo)€éœ€è¦(xia)è¿›ä¸€æ­¥æé«˜å¤–åŠ(e) å(chai)‰‚质量(‡)ï¼(ben)Œä¾æ®èš(cha)(cha)(cha)羧酸(mie)(mie)外加å‰(ji)‚å(xiao)œ¨(œ¨)å›(qie)(qie)½å(jie)†…çš(fei)„实际发展现(bang)çŠ(zhong)¶ï¼Œ(ren)制造聚(cha)(cha)(cha)羧酸(mie)(mie)çš(fei)„聚(cha)(cha)(cha)乙二醇等(li)材料(dou)主要æ˜(tuan)¯ä»ŽéŸ©å›½ã€(mo)(mo)å¾·(jing)å›(qie)(qie)½ä(jie)»¥(hu)å(hong)(hong)Šæ—¥(yuan)æœ(lian)¬ç­‰(li)å›(qie)(qie)½å(jie)®¶è¿›å£çš(fei)„。而所ç”(ç”)¨çš„原æ(jian)(jian)(ji)(ji)料甲基ä(hong)¸™çƒ¯é…¸(mie)(mie)目前正处äº(bang)Žå¼•è¿›ã€æ‰©å¤§è§„模以(hu)å(hong)(hong)Šæ¶ˆåŒ(chen)–中ã€(mo)(mo)‚å(xiao)ˆ«çš(fei)„单体ä(pu)»¥(hu)å(hong)(hong)Šè¾…åŠ(e)©åŽŸæ–™è‹¥æ˜(tuan)¯è¿›å(hong)(hong)£çš„ï¼(ben)Œé‚£(zhong)么æ(zhuan)(ji)(ji)料æ(li)ˆæœ(lian)¬å°±(an)(an)非常(fu)高ï(rao)¼Œ(ren)å(hong)(hong)¯æ˜¯å›(qie)(qie)½å(jie)†…ç”(ç”)Ÿäº§(hai)çš(fei)„材(ji)(ji)料质é‡(yue)å(gan)(gan)ˆæ— æ³•å¾(huan)—到(lang)保é(chu)šœã€(mo)(mo)‚æ(yong)‰€ä»¥ï¼Œ(ren)原æ(jian)(jian)(ji)(ji)料æ(li)‰€å…(wei)·æœ‰çš(fei)„不ç¡(yun)®å®šæ€§å¯¼è‡´è(cuo)š(cha)(cha)(cha)羧酸(mie)(mie)外加å‰(ji)‚å(xiao)œ¨(œ¨)品质方面也参差不齐。é(suo)™¤æ­¤ä¹‹(ce)外,(ren)对聚(cha)(cha)(cha)羧酸(mie)(mie)ç”(ç”)Ÿäº§(hai)进行控制(bu)çš(fei)„éš¾ç‚(liao)¹ä(guang)»¥(hu)å(hong)(hong)Šé‡ç‚(liao)¹å°±(an)(an)æ˜(tuan)¯æ•´(qi)个生äº(bang)§è¿‡(beng)程。é(suo)…¯åŒ(chen)–产(hai)物质é‡(yue)å(gan)(gan)’Œç¨³å®šæ€§ä¼šä¸¥é‡å½(qian)±å(bian)“åˆ°å‡(‡)水剂äº(bang)§å“è´¨é‡(‡)和稳定性。现(bang)阶段ï¼(ben)Œå(han)¤§éƒ¨åˆ†å¤–加å‰(ji)‚å(xiao)Ž‚(zhao)商都æ˜(tuan)¯é‡‡(yong)ç”(ç”)¨å¤§å•ä½“(hong)酯化以及混合单体(hong)聚合这种合æ(zhuan)ˆæ–¹å¼(fang)ã€(mo)(mo)‚å(xiao)¯(chi)æ˜(tuan)¯å¾ˆå¤šåŽ‚(zhao)商æ(ji)²¡æœ(lian)‰é‡è§†äº§(hai)品的科学分子结æ(dun)ž„设计和å(han)¤–åŠ(e) å(chai)‰‚å(hong)(hong)Šæ··(fan)å‡(fu)å(fen)œŸé€(kun)‚å(xiao)º”性相å…(wei)³çš„ç (lian)”究ã€(mo)(mo)?/span>

  2.2水泥和è(Œè)šç¾§é…¸å¤(chan)–加剂之间的适应æ€(hao)?/span>

  使å(kua)¾—é€(kun)‚应(pai)性比è¾(cha)ƒå·®çš(fei)„原因主(fu)要有两点ï¼?/span>

ã€(mo)(mo)€ã€(mo)(mo)€1)社会原å(zeng)› (› )ã€(mo)(mo)‚现阶段比较缺乏系ç(hun)»Ÿç ”ç(qi)©¶å¤–加(ji)å‰(ji)‚以(hu)å(hong)(hong)Šæ°´(an)æ³(ping)¥çš„(qing)(qing)(qing)(qing)适应(pai)(pai)æ€(hao)(hao)§é—®é¢˜ï¼Œ(ren)原æ(jian)œ¬éœ€è¦å(huo)¯¹æ°(pin)´æ(cun)(cun)³¥(chang)ã€(mo)(mo)å(huo)¤–åŠ(e) å(chai)‰‚ã€(mo)(mo)æ(gui)··(fan)å‡(fu)å(fen)œŸ(yu)和é(yue)«˜(pei)耐久(fu)(fu)æ€(hao)(hao)§ç»“(bai)构进è¡(chen)Œæ(shen)(shen)(shen)•´ä½(huan)“研究,(ren)å(hong)(hong)¯æ˜¯å›(qie) ä¸º(fu)分å(gong)±žé¢†å(gong)ŸŸ(yan)不一(cun)样,(ren)所ä»(xi)(xi)¥ä½¿å¾—å·¥ç¨(fu)‹æŠ€(yuan)æœ(lian)¯äºº(han)å‘(duan)˜å(hua)‡ºçŽ?ldquo;隔行”现象ã€(mo)(mo)‚例å¦(ru)?在高(pei)铁å(huo)»ºè®¾ä¸æ–(kou)(kou)­å‘展的(qing)(qing)(qing)(qing)条件下,(ren)å·(chen)(chen)¥ç¨‹ç»(zi)(zi)“æ(dun)(dun)ž„相关设计人员需要设计出ä½(huan)¿ç”¨(ke)å¹(qian)´é™è¶…过(beng)(beng)100å¹(qian)´çš„(qing)(qing)(qing)(qing)混凝土ç(xi)(xi)»“(bai)构ï(che)¼Œ(ren)想要æ(suo)å‡æ··å‡åœŸæ(jian)‰€(ji)具æ(feng)œ‰çš„耐久(fu)(fu)æ€(hao)(hao)§ï¼Œ(ren)就应(pai)(pai)该着(xiu)手ä(yu)ºŽåŽŸæ(jian)æ–(kou)(kou)™è´¨é‡ã€ç”Ÿ(duo)(duo)(duo)产工艺以(hu)å(hong)(hong)Šæ··(fan)å‡(fu)å(fen)œŸ(yu)致å(cun)¯†æ€(hao)(hao)§ç­‰æ–(kou)(kou)¹é(gui)¢ï¼(ben)Œå¯(chi)是大éƒ(ting)¨åˆ†(ke)ç»(zi)(zi)“æ(dun)(dun)ž„设计人员对现阶段聚羧(jing)酸外åŠ(e) å(chai)‰‚实际å(hong)(hong)‘展状å(duo)†µ(zhou)ä»(xi)(xi)¥åŠ(qiang)æ•(suo)æ„Ÿ(zhuo)æ€(hao)(hao)§å’Œé€‚用(ke)æ€(hao)(hao)§ç­‰é—(xiang)®é¢˜ç»(zi)(zi)™ç›¸åº”ç(qi)š„(qing)(qing)(qing)(qing)混凝土ç(xi)(xi)»“(bai)构å(fan)¸¦(fu)来的(qing)(qing)(qing)(qing)å(ti)±å®³ç¨(fu)‹å(pin)º¦ä¸å¤ªäº†è(wu)§£;而æ(shen)(shen)(shen)–½å·(chen)(chen)¥è¯•éª(nan)Œæ(shen)(shen)(shen)£€æµ(xian)‹ä(yu)ºº(han)å‘(duan)˜ä¹Ÿå¯¹æ(gui)°´(an)æ³(ping)¥å®ž(lin)际ç(ping)”Ÿ(duo)(duo)(duo)产过(beng)(beng)ç¨(fu)‹ä(yu)»¥(hu)å(hong)(hong)ŠåŒ–(yi)å­(ying)¦ç»„分给相应(pai)(pai)外加(ji)å‰(ji)‚é(suo)€‚用(ke)æ€(hao)(hao)§å¸¦(fu)来的(qing)(qing)(qing)(qing)影响不了(jian)解,(ren)所ä»(xi)(xi)¥ä¸èƒ(jian)½è¦æ±‚æ(yong)°´(an)æ³(ping)¥ç”Ÿ(duo)(duo)(duo)产人(han)å‘(duan)˜é‡‡(yong)å(hong)(hong)–有æ•(suo)ˆåœ°æŽªæ–½ç”Ÿäº§å‡(fu)ºæ(hong)€§èƒ½(shi)é(wei)žå(tai)(tai)¸¸(fu)é«(zha)˜çš„(qing)(qing)(qing)(qing)混凝åœ?而æ(shen)(shen)(shen)°´(an)æ³(ping)¥ç”Ÿ(duo)(duo)(duo)产人(han)å‘(duan)˜å(hua)› (› )为对混凝土å(zeng)®ž(lin)际发展状况以(hu)å(hong)(hong)Šèš(cha)ç¾(ti)§é…¸å¤–加(ji)å‰(ji)‚å…·(hong)ä½(huan)“æ(dun)(dun)Š€(yuan)æœ(lian)¯ç¼ºä¹(cen)äº†(jian)解,(ren)所ä»(xi)(xi)¥åªèƒ(jian)½ä(jie)»Ž(hong)利益角度å‡(fu)ºå‘ï¼(ben)Œç‰‡é(wei)¢è¿½æ±‚æ(yong)°´(an)æ³(ping)¥ææ–(kou)(kou)™çš„(qing)(qing)(qing)(qing)早强ä»(xi)(xi)¥åŠ(qiang)超ç(ping)»†(tai)化。同时,(ren)对外åŠ(e) å(chai)‰‚质量进行检æµ(xian)‹çš„(qing)(qing)(qing)(qing)时å(duo)€™ï¼Œ(ren)通过(beng)(beng)åŸ(nuo)ºå‡†æ°(pin)´æ(cun)(cun)³¥(chang)ä»(xi)(xi)¥åŠ(qiang)å·(chen)(chen)¥ç¨‹æ°(pin)´æ(cun)(cun)³¥(chang)æœ(lian)‰å¯(chi)èƒ(jian)½ä(jie)¼šäº§ç”Ÿ(duo)(duo)(duo)不同ç»(zi)(zi)“æ(dun)(dun)žœï¼(ben)Œæ(shen)(shen)(shen)‰€(ji)ä»(xi)(xi)¥å·¥ç¨(fu)‹æ°´(an)æ³(ping)¥ä»¥(hu)å(hong)(hong)ŠåŸºå‡(fu)†æ(ji)°´(an)æ³(ping)¥çš„(qing)(qing)(qing)(qing)ç»(zi)(zi)„å(fan)ˆ†(ke)和生(duo)(duo)(duo)产工艺æ(hong)˜¯ä¸åŒçš„。使得原(shi)æœ(lian)¬å‡æ°(pin)´æ(cun)(cun)€§èƒ½(shi)é(wei)žå(tai)(tai)¸¸(fu)é«(zha)˜çš„(qing)(qing)(qing)(qing)聚羧(jing)酸外åŠ(e) å(chai)‰‚å‡(fu)ºçŽ°é€‚应(pai)(pai)æ€(hao)(hao)§å·®ä»(xi)(xi)¥åŠ(qiang)æ•(suo)æ„Ÿ(zhuo)æ€(hao)(hao)§å¼ºå’Œæ(shen)(shen)(shen)€§èƒ½(shi)损å(zeng)¤±å¿«ç­‰é—(xiang)®é¢˜ã€(mo)(mo)?/span>

ã€(mo)(mo)(mo)(mo)€ã€(mo)(mo)(mo)(mo)€2)技术原因ã(ba)€‚æ(yong)°´æ³(ping)(ping)¥å¯¹è(chan)šç(yang)¾§é…(yan)¸å(gao)¤–åŠ(e) å(chai)‰‚(qiang)所å…(wei)·æ(feng)œ‰çš„适应æ€(hao)§é€ æˆå½(qian)±å“(chen)的主(fu)要å(huo)› (› )素有:æ°(pin)´æ(cun)³¥åŒ(chen)–学组分ã€(mo)(mo)(mo)(mo)è°ƒ(ze)å‡(fu)(fu)å‰‚(qiang)种ç(qu)±»(bei)和分å­(ying)ç»“构、å(huo)Š©(zhi)磨剂(qiang)ã€(mo)(mo)(mo)(mo)ç†Ÿæ–™ä»¥(hu)及æ(cong)´»æ€(hao)§ã€éžæ´»æ€§æ··(fan)合æ(zhuan)æ–™æŽº(zhong)量和(nin)种ç(qu)±»(bei)ã€(mo)(mo)(mo)(mo)å(huo)«ç¢±é(bian)‡ã€(mo)(mo)(mo)(mo)ç»†(tai)度以(hu)及使(jiao)用温度等ã€(mo)(mo)(mo)(mo)‚ç”±äº(bang)Žæ(zhi)°´æ³(ping)(ping)¥åœ°åŸ(nuo)Ÿæ€§éžå¸¸å(gao)¼ºï¼Œæ‰€ä»¥å…¶(…¶)矿ç(kua)‰©(yi)组分å­(ying)˜åœ¨ä¸€å®(yue)šç(yang)š„差异,ä(wu)½¿(jiao)å¾(huan)—æ··(fan)å‡(fu)(fu)åœŸæ€(hao)§èƒ½å‘生显著改变ã€(mo)(mo)(mo)(mo)‚è(ta)€Œè°ƒ(ze)å‡(fu)(fu)å‰‚(qiang)石è(chong)†æ™¶ä(duo)½“å®(yue)žé™…çŠ(zhong)¶æ€ã€æ°´æ³(ping)(ping)¥ç¢±å«é‡è¶…æ ‡ã€(mo)(mo)(mo)(mo)æŽº(zhong)åŠ(e) å(chai)Š©(zhi)磨剂(qiang)ã€(mo)(mo)(mo)(mo)å(huo)‡çº§ç»†(tai)度以(hu)及使(jiao)用前(shan)æ°(pin)´æ(cun)³¥ä½(huan)™ç(zan)ƒ­éžå(tai)¸¸é«˜ç­‰å‡ä¼šå¯(fen)¹å¤–åŠ(e) å(chai)‰‚(qiang)适应æ€(hao)§é€ æˆå½(qian)±å“(chen)ã€(mo)(mo)(mo)(mo)?/span>

ã€(mo)(mo)€ã€(mo)(mo)€2.3其他材æ–™(dou)组分影响到外加剂适应æ€?/span>

  1)骨料对聚羧酸外å(yi)Š å‰‚æ··(fan)凝土(yu)性能(shi)产生影响(chen)çš(fei)(fei)„å(fan)› ç´ æœ‰(shi):含泥é‡(yue)ã€æ³¥è´(lu)¨ç±»åž‹ã€ç(quan)Ÿ³(Ÿ³)粉以及粉(meng)ç (lian)‚粒。å(xiao)½“含泥é‡(yue)ä¸(zhen)æ–(kou)­å¢žåŠ(e) çš„时候ï(lei)¼Œæ··å‡åœ(she)Ÿæ(jian)‰€(ji)å…(wei)·æœ‰(shi)çš(fei)(fei)„流åŠ(e)¨æ€§å°±ä¼(mei)šæ˜¾è‘—降低ã€?/span>

  2)å¤(chan)–加剂对适应性造成å½(qian)±å(bian)“çš„æ(juan)œ‰:烧失é‡(yue)ä»¥å(hong)Šç»†åº¦ã€‚当烧失é‡(yue)ä¸æ–(kou)­å˜å¤(chan)§çš„æ—¶å(duo)€™ï¼Œæ··å‡åœŸæ‰€å…·æœ‰çš„æ(juan)µ(wu)å(hong)˜æ(kui)€§å°±(an)ä¼(mei)šæŸå¤(chan)±å(bian)¾—越来越快ã€?/span>

  3)粉煤灰属äº(bang)(bang)Žç”µ(shu)åŽ(zha)‚副(tan)äº(bang)(bang)§å“ï¼Œå„种煤è´(lu)¨ä¼šæ˜¾è(juan)‘—(xian)影响(chen)混凝(ji)土拌合物所具æ(feng)œ‰çš„性能ã€?/span>

  2.4工艺性因ç´(shang) ç»™å¤–加剂适应性造æ(chuo)ˆçš„å½±å“?/span>

ã€(mo)€ã€(mo)€é«˜æ€§èƒ½(shi)æ·(di)·å(feng)(feng)‡(ji)(ji)åœ(she)Ÿæ‰€å…·æ(feng)œ‰çš„初期性能(shi)ä¼(mei)(mei)šå(ya)½±å“(yu)ç¡¬åŒ–之(ce)å(yang)Žçš„相应æ·(di)·å(feng)(feng)‡(ji)(ji)åœ(she)Ÿæ€§èƒ½(shi)和其æ‰(jia)€å…·æ(feng)œ‰çš„耐久性,å°(hao)¤å…¶æ˜¯å«æ°”量ä¼(mei)(mei)šäº§(hai)生直(wu)接影å“(yu)ã(zhan)€‚在æ·(di)·å(feng)(feng)‡(ji)(ji)åœ(she)Ÿç»è¿‡ä¸€(cun)段æ(dian)—¶é—´è¿(xiu)输以(hu)及高温环境之(ce)å(yang)Žï¼Œæ·(di)·å(feng)(feng)‡(ji)(ji)åœ(she)ŸåˆæœŸå’Œæ˜“性以(hu)及流动性都(shi)ä¼(mei)(mei)šäº§(hai)生非常大的变化,当损(yin)失ä(bian)º†éžå¸¸(fu)多ç(yang)š„å(yang)«æ°”(que)量之(ce)å(yang)Žï¼Œå°(hao)±ä(bian)¼šä½¿å¾—其流动性、耐久性以(hu)及å(mian)¯æ³µæ(dian)€§å‡æ˜¾è‘—下降ã€(mo)?/span>

  3改è(gui)¿›(yu)措施(dan)

ã€(mo)€ã€(mo)€3.1对于外加剂æ(yong)œ¬èº?/span>

ã€(mo)€ã€(mo)€â‘(yi)(yi) åº”该选用(ke)比è(pi)¾ƒå…ˆè¿›(yu)(yu)çš(fei)„设备,å°(hao)¤å…¶æ˜¯åº”该采用无损以å(hong)Šè(ju)´¨é‡(yue)åˆæ (luo)¼çš„(qing)相应搪瓷å(hong)åº”é‡(yue)?â‘(yi)(yi)¡åº”该选用(ke)è´(lu)(lu)¨é‡å(yang)(yang)ˆæ(zhuan)(zhuan) ¼çš(fei)„å(fan)•ä½“æ(dun)¥å(yang)(yang)ˆæ(zhuan)(zhuan)ˆ(yao);â‘(yi)(yi)¢å¯¹å(yang)(yang)ˆæ(zhuan)(zhuan)ˆ(yao)æŠ(ge)€æœ(lian)¯ä»¥å(hong)Šå·¥(fa)艺进(yu)(yu)行深(fan)入研ç©(chu)¶ï¼Œè®¾è®¡å‡(fu)ºæ(hong)¯”较å(fu)ˆç†çš„(qing)分子结æ(dun)ž„ã€(mo)ä¾¿æ·çš„(qing)å(yang)(yang)ˆæ(zhuan)(zhuan)ˆ(yao)æŠ(ge)€æœ(lian)¯åŠå(yang)(yang)ˆæ(zhuan)(zhuan)ˆ(yao)å·(chen)¥è‰º;â‘(yi)(yi)£å¯¹å(hong)åº”温度ç­(jiang)‰æ¡ä»(xi)¶è¿›(yu)(yu)行严æ (luo)¼çš„(qing)控制,同时对用水(an)è´(lu)(lu)¨é‡è¿›è¡Œä¸¥æ ¼æŽ§åˆ¶;â‘(yi)(yi)¤å¯¹ç”Ÿäº§è¿‡ç¨‹è´(lu)(lu)¨é‡ä»(xi)¥åŠå‡(fu)ºå(hong)Ž‚è´(lu)(lu)¨é‡è¿›è¡Œä¸¥æ ¼çš(fei)„控制和检éª?â‘(yi)(yi)¥æœ‰æ•ˆæ(zhuan)(zhuan)å‡ä¾›(zong)应å(you)•†æŠ(ge)€æœ(lian)¯æœåŠ¡è´¨é‡(yue)ï¼Œå¯¹é€‚应æ€(hao)§è¿›(yu)(yu)行深(fan)入研ç©(chu)¶ï¼Œå(yang)(yang)Œæ—¶ä¸æ–­æ”¹è(gui)¿›(yu)(yu)é€(kun)‚应æ€(hao)§ã€?/span>

ã€(mo)€ã€(mo)€3.2æ°(pin)´æ³¥å’Œè(Œè)šç¾§é…¸(mie)外加å‰(ji)‚之é—(xiang)´ç(cun)š„适å(xiao)º”性方é?/span>

ã€(mo)€ã€(mo)€åº”该对水泥生(duo)äº(bang)§æŠ€(yuan)æœ(lian)¯è¿›(yu)è¡(chen)Œæ”¹è¿›ï¼Œ(ren)制造å(chai)‡ºä½(huan)(huan)Žç(tiao)ƒ­æ°´æ(cun)(cun)³¥(chang)ã€(mo)å’Œèšç¾§é…(yan)¸å¯ä»¥ç›¸(shi)(shi)适应(pai)çš(fei)„一种高耐久(fu)性水泥、ç(quan)»†åº¦çº§é…(yan)å(ao)Œ–æ°´æ(cun)(cun)³¥(chang)及低ç¢(pi)±æ°´æ³¥ã€‚在实际(tai)生产ä¸(juan)­ï¼Œ(ren)æ°´æ(cun)(cun)³¥(chang)生产厂家å’(xia)Œå¤–åŠ(e)(e) å(chai)‰‚ä¾(zhu)›å(si)º”(pai)å•(xing)†ç›¸(shi)(shi)关技(yuan)æœ(lian)¯æœåŠ(e)(e)¡äºº(han)(han)å‘(duan)˜åº”(pai)è¯(xuan)¥è¿›(yu)è¡(chen)Œåˆä½(huan)(huan)œä»¥(hu)及交流ï(guang)¼Œ(ren)对聚羧酸å’(xia)Œæ°´æ³¥é€‚应(pai)性具(hong)ä½(huan)(huan)“内åœ(she)¨å› ç´ è¿›(yu)è¡(chen)ŒæŽ¢ç´¢ï¼Œ(ren)发展ç›(sui)¸åº”(pai)çš(fei)„水泥生(duo)äº(bang)§æŠ€(yuan)æœ(lian)¯ä»¥(hu)及å(mian)¤–åŠ(e)(e) å(chai)‰‚具体合成(yao)技æœ(lian)¯ã€‚防止因ä¸(juan)ºè°ƒæ•´æ(cun)(cun)°´æ³¥ç»„分具(hong)ä½(huan)(huan)“比ä¾(zhu)‹ä½¿å¾—混泥土拌合物保坍性比è¾(cha)ƒå·®çš(fei)„é(dan)—®é¢˜ã(pu)€‚现åœ(she)ºè¯•(cu)验者、水泥厂ç›(sui)¸å…³ç ”究者以(hu)及å(mian)¤–åŠ(e)(e) å(chai)‰‚ä¾(zhu)›å(si)º”(pai)å•(xing)†ç›¸(shi)(shi)关技(yuan)æœ(lian)¯æœåŠ(e)(e)¡äºº(han)(han)å‘(duan)˜åº”(pai)è¯(xuan)¥åŠ(qiang)(qiang)时有效进(yu)è¡(chen)Œæ²Ÿ(jue)通,(ren)明ç(tiao)¡®æ°´æ(cun)(cun)³¥(chang)ç»(zi)„分比例(bao)以及(qiang)(qiang)制造æ(chuo)°´æ³¥çš„(qing)所æœ(lian)‰å(sui)ŽŸ(shi)æ(shou)æ–™äº(bang)§åœ°ï¼Œä»Žè€Œå¯¹æ‹Œåˆç‰©æ€§èƒ½è¿›è¡Œæ”¹å–„(chou)ã€(mo)?/span>

  3.3别的材料组分(ke)å½±å(bian)“(chen)到外加剂适应性方é?/span>

  ①应(pai)(pai)该选择(han)质量(‡)(‡(‡))合æ(zhuan) ¼çš(fei)„骨料并清洁骨料;②在(œ¨)(œ¨(œ¨))ä¸(juan)(juan)(juan)è(qiang)¶…过一(cun)定范(jin)å›(qie)´çš„(qing)(qing)(qing)条件ä¸(juan)(juan)(juan)‹ï¼Œ(ren)利用(ke)减小砂率çš(fei)„æ–¹(nan)法来降低含泥量带来的(qing)(qing)(qing)å½±å(bian)“;③在(œ¨)(œ¨(œ¨))符合(hao)技æœ(lian)¯è§„èŒ(luo)ƒç(mi)š„(qing)(qing)(qing)基础ä¸(juan)(juan)(juan)Šï(fu)¼Œ(ren)应该尽量(‡)(‡(‡))é€(kun)‰ç”¨(ke)çƒ(jie)§å¤±é‡æ¯”较小çš(fei)„掺合æ(zhuan)–™;④当使用(ke)çš(fei)„掺合æ(zhuan)–™ç§ç(qu)±»ä¸(juan)(juan)(juan)åªä¸(juan)(juan)(juan)€ç§ç(qu)š„(qing)(qing)(qing)时候,(ren)应该尽量(‡)(‡(‡))减少对å(gui)¤–加剂é€(kun)‚å(xiao)º”(pai)(pai)性带来不良影响ç(qu)š„(qing)(qing)(qing)外掺料的(qing)(qing)(qing)用量(‡)(‡(‡));⑤应(pai)(pai)该确保ç(ji)…¤æºäº§(hai)地具(hong)æœ(lian)‰ä¸€(cun)定的(qing)(qing)(qing)ç¨(fu)³å®šæ€§ï¼Œ(ren)这样可以(hu)在一(cun)定程度上(¸Š)æ(suo)å‡å¤–加剂适å(xiao)º”(pai)(pai)性ã€?/span>

  3.4工艺性因ç´(shang) æ(chuo)–¹(nan)é?/span>

  科学çš(fei)„æ(juan)Š•æ–™é¡ºåºä»¥åŠåˆ(hao)适的拌å(han)(han)(han)ˆ(hao)时é(duo)—´ä¹Ÿä(cuan)¼š(xi)对混(fan)凝å(fen)œŸ(yu)(yu)拌å(han)(han)(han)ˆ(hao)物所å…(wei)·æœ‰çš(fei)„æ(juan)€§èƒ½é€ æˆå½±å“ï¼(ben)(ben)Œç‰¹(kai)别是(yi)å†(cong)¬å­£æ–½å(jie)·¥é˜¶æ®µï¼(ben)(ben)Œå(han)(han)(han)¿…é¡»ä(hui)¾æ(rong)®æ ‡å‡†è§„定及时对投æ(chen)–™é¡ºåºè¿›è¡Œè°ƒæ•´(qi)ï¼(ben)(ben)Œå(han)(han)(han)Œ(qian)(qian)时使(jiao)拌å(han)(han)(han)ˆ(hao)时é(duo)—´å»¶é(duo)•¿ã€‚当(hong)用罐è½(qi)¦è¿(xiu)输æ(dun)··(fan)凝å(fen)œŸ(yu)(yu)çš(fei)„æ(juan)—¶å€™ï¼Œåº”该在浇(gao)筑混(fan)凝å(fen)œŸ(yu)(yu)之å(pin)‰çš(fei)?0min以内(qiang)ï¼(ben)(ben)Œé‡‡(yong)取二次掺(zhong)å…(wei)¥æ³•ï¼(ben)(ben)Œç¡®ä¿æ··(fan)凝å(fen)œŸ(yu)(yu)耐久性不发生变化(yi)ï¼(ben)(ben)Œå(han)(han)(han)Œ(qian)(qian)时改善æ(juan)··(fan)凝å(fen)œŸ(yu)(yu)流动性,在经济性方(nan)面也是比较合(hao)理ç(pang)š„ã€?/span>

  4结束è¯?/span>

  综ä(jian)¸Šæ‰€è¿(ma)°ï(bang)¼Œ(ren)å’(xia)Œè˜ç³»å‡æ°´å‰‚(qiang)相比ï¼(ben)Œèšç¾§é…¸å¤–å(yi)Š (ji)剂ç(yao)š„å…·ä(feng)½“(hong)适å(xiao)(xiao)º”(pai)æ€(hao)(hao)§é—®é¢˜æ(kui)›´åŠ å(chai)¤æ‚,(ren)相应(pai)æœ(lian)‰æ•ˆ(han)解决è¿(ma)™äº›é€‚å(xiao)(xiao)º”(pai)æ€(hao)(hao)§é—®é¢˜ï¼Œ(ren)就应(pai)该进行深入研(ye)究ï(e)¼Œ(ren)并且以发(fa)展å(li)’Œç³»ç»Ÿçš„眼光来对待è¿(ma)™äº›é—®é¢˜ï¼(ben)Œæ˜Žç¡®å¤–加å(chai)‰‚(qiang)å’(xia)Œç›¸(shi)应混凝å(fen)œŸä¸åŒç»„分互ç(qian)›¸(shi)适å(xiao)(xiao)º”(pai)的具体观点以及理念,(ren)重è(qiang)§†æ°´æ³¥æŠ(ge)€æœ(lian)¯ã€æ··å‡å(fen)œŸæŠ(ge)€æœ(lian)¯ä»¥åŠå(mian)¤–加å(chai)‰‚(qiang)æŠ(ge)€æœ(lian)¯çš„共同å(ti)è°ƒå‘展ï¼(ben)Œåªæœ(lian)‰è¿™æ ·æ‰(shan)可以æœ(lian)‰æ•ˆ(han)提升é«(zha)˜æ(kui)€§èƒ½æ·(di)·å(feng)‡åœŸæ‰€(ji)具有的耐久æ€(hao)(hao)§ã€?/span>

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