Imboni yezokwakha idlula ushintsho olukhulu, iqhutshwa yisidingo esiphuthumayo sezakhiwo ezihlala isikhathi eside, ezisebenza kangcono, futhi ezibiza kancane kuyo yonke impilo yazo. Enkabeni yalokhu kuguquka kunezinto ezithuthukisiwe zokwakha — izinhlanganisela ezintsha kanye namafomula ayinkimbinkimbi adlula kakhulu amandla kakhonkolo nensimbi evamile. Phakathi kwalezi, i-Ultra-High Performance Concrete (UHPC) igqama njengoshintsho olukhulu, inikeza amandla okucindezela angaphezu kuka-20,000 psi kanye nokuqina okuphawulekayo okumelana nokuqhekeka, ukugqwala, nokonakala kwemvelo. Konjiniyela, osonkontileka, nabanikazi bamaphrojekthi abafuna ukwakha ingqalasizinda emelana nesikhathi, ukuqonda lezi zinto zokwakha ezithuthukisiwe akuseyona into yokuzikhethela — kubalulekile. Lesi sihloko sihlola uhla oluphelele lwezinto ezithuthukisiwe zokwakha, sigxile kakhulu ku-UHPC, izifundo zangempela zomhlaba, kanye nesiqondiso sokukhetha umlingani ofanele wephrojekthi yakho elandelayo. Ekugcineni, uzobona ukuthi kungani izinkampani ezibheka phambili ziphendukela ku-德州中科新材料有限公司 ukuze zithole izixazululo ezisezingeni eliphezulu eziletha imiphumela elinganisekayo.

Izinto zokwakha ezithuthukisiwe zibhekisela esizukulwaneni esisha sezinto ezenziwe ngobunjiniyela ezinamandla athuthukile kakhulu emishinini, amakhemikhali, noma ezakhiweni uma kuqhathaniswa nezinto zokwakha ezijwayelekile. Lezi zihlanganisa i-Ultra-High Performance Concrete, ama-fiber-reinforced polymers, ukhonkolo ozilapha, ama-high-performance grouts, nama-nano-modified composites. Umehluko omkhulu usezakhiweni zazo ezincane: izinto zokwakha ezithuthukisiwe ziklanywa ezingeni lezinhlayiyana ukuze kuthuthukiswe ukuminyana, ukubopha, nokumelana nengcindezi. Isibonelo, i-UHPC isusa i-coarse aggregate ngokuphelele futhi isebenzisa inani elikhulu lezinsimbi noma imicu yokwenziwa, idale i-matrix enamandla kakhulu futhi eguquguqukayo. Lokhu kusho ukuthi izakhiwo ezakhiwe ngamasu athuthukisiwe okwakha ngokhonkolo zingamelana nemithwalo eyeqisayo, imijikelezo yokushisa nokubanda, nokuhlaselwa amakhemikhali ngaphandle kokonakala. Enye inzuzo enkulu izikhathi zokwakha ezisheshayo — izinto eziningi ezithuthukisiwe ziphola ngokushesha, zivumela amaphrojekthi ukuthi asuke ekuthelweni aye ekuthwaleni umthwalo emahoreni kunasezinsukwini. Ukunciphisa ukugcinwa kungenye inzuzo ephoqelelayo; ngoba lezi zinto zimelana nokuqhekeka nokugqwala, abanikazi bayonga kakhulu ekulungiseni phakathi nempilo yonke yesakhiwo. Noma ngabe wakha amabhuloho, izindonga eziphakeme, noma phansi kwezimboni, ukufaka izinto zokwakha ezithuthukisiwe kumibandela yakho kuholela emiphumeleni ephephile, enomnotho, futhi esimeme kakhulu.

Ukwamukelwa kwezinto zokwakha ezithuthukisiwe emhlabeni wonke kuyashesha, kuqhutshwa yisidingo sokulungisa ingqalasizinda esigugile kanye nokuhlangabezana nezindinganiso eziqinile zokusebenza. E-United States kuphela, izinkulungwane zamabhuloho ahlukaniswa njengangenaphutha ekwakhiweni, futhi amaningi adinga ukulungiswa izinto zokwakha ezijwayelekile ezingakwazi ukukuletha ngokwezomnotho. Izinto zokwakha ezithuthukisiwe ezifana ne-UHPC zinikeza isixazululo ngokunikeza amandla aphezulu kakhulu ezingxenyeni ezincanyana, zinciphisa umthwalo ofile kanye nokusetshenziswa kwezinto. Ngokufanayo, ama-fiber-reinforced polymers asetshenziswa ukusonga izinsika nemishayo ukuze kuthuthukiswe ukumelana nokuzamazama komhlaba, engeza amandla ngaphandle kokwandisa isisindo. Izindlela zokwakha ezithuthukisiwe zikathayela nazo zithuthukisa ukuphepha kwabasebenzi ngoba izinhlanganisela eziningi ezithuthukisiwe ziyazihlanganisa, zisusa isidingo sokudlidliza futhi zinciphise umsebenzi endaweni yokwakha. Kubacacisi, ijika lokufunda libandakanya ukuqonda imiklamo yokuxuba, izidingo zokwelapha, kanye namasu okubeka, kodwa umvuzo ekusebenzeni mkhulu. Njengoba amakhodi nezindinganiso eziningi zithuthuka ukuze zifake lezi zinto, umgoqo wokwamukelwa uyaqhubeka nokwehla. Izinkampani ezitshala imali ezintweni zokwakha ezithuthukisiwe manje zizoba nethuba lokuncintisana ekuwineni amaphrojekthi adinga ukuphila isikhathi eside nokumelana nezimo.

I-Ultra-High Performance Concrete imele inhlanganisela ephezulu kakhulu yezinto zokwakha ezithuthukisiwe. Ngokungafani nokhonkolo ojwayelekile, i-UHPC ayinazo izinhlayiya ezinkulu; esikhundleni salokho, isebenzisa ukupakwa okuminyene kwezimpushana ezicolekile — usimende, i-silica fume, i-quartz flour — kuhlanganiswe nenani eliphezulu lezinsimbi noma imicu ephilayo kanye nesilinganiso esiphansi samanzi ku-binder. Umphumela wukuthi kutholakala into ezuza amandla okucindezela adlula ama-20,000 psi (140 MPa) futhi ngokuvamile ifinyelela ku-30,000 psi ngaphansi kwezimo ezilawulwayo. Esinye sezici ezihlaba umxhwele kakhulu ukukhula kwayo ngokushesha kwamandla: i-UHPC ingakhiqiza ngaphezu kwe-15,000 psi ezinsukwini nje ezingama-24, okusheshisa kakhulu izinhlelo zokwakha. Lokhu kuyenza ifaneleke kakhulu ezingxenyeni ezakhiwa ngaphambilini okufanele zikhishwe esikhunjeni ngokushesha, kanye nasekulungiseni okuphuthumayo lapho isikhathi sokuvalwa komgwaqo sibalulekile. Ngaphezu kwamandla, i-UHPC inikeza ukuqina okungavamile. Ukungena kwayo kancane kakhulu kwamanzi — ngenxa yokungabikho kwezimbotshana ezincane — kuvimbela amanzi, ama-chloride, nezinye izinto ezinolaka ukuthi zingangeni emzimbeni wekhonkolo. Lokhu kusho ukuthi izakhiwo ezakhiwe ngalolu daba lokwakha oluthuthukisiwe azibonisi ukuqhekeka nhlobo ngaphansi kwemithwalo yokusebenza, futhi zimelana nomonakalo wokushisa nokubanda, ukusabela kwe-alkali-silica, kanye nokuhlaselwa yi-sulfate kalula.

Izindlela zokusetshenziswa kwe-UHPC ekwakhiweni kukakhonkolo kwethuthukile zibanzi futhi ziya zikhula. Kubunjiniyela bamabhuloho, i-UHPC isetshenziselwa ukuxhuma okwenziwa endaweni phakathi kwamaphaneli ezitezi abunjiwe kanye naphakathi kwemishayo, kuqedwa amaphuzu abuthakathaka avame ukubangela ukuqhekeka nokugqwala. Izinto zokwakha ezibunjiwe ezifana namaphaneli angaphandle azacile, izitebhisi, kanye nezithunzi zomthunzi zizuzisa emandleni e-UHPC okudala izimo ezinciphile, ezinhle ngezilinganiso eziphezulu zamandla nesisindo. Amaphrojekthi wokulungisa nokuvuselela nawo asebenzisa i-UHPC ekufuleleni, ekugoqeni, nasekugcwaliseni amajoyinti ngoba inamathela kahle kakhulu kukhonkolo okhona futhi inikeza ukuvikelwa kwesikhathi eside. Ezindaweni ezithikamezeka ukuzamazama komhlaba, izingxenye ze-UHPC zingaklanywa ukuze zihlakaze amandla ngokusebenzisa ukuhlanganiswa kwemicu, kuthuthukiswe ukuqina nokuvimbela ukwehluleka okuyinhlekelele. Ezitezi zezimboni nasezindleleni, i-UHPC imelana nokugqokwa nokushaywa kangcono kakhulu kunekhonkolo ejwayelekile, inciphisa isikhathi sokuma komsebenzi nezindleko zokulungisa. Ngakunye kwalawa macala okusetshenziswa kubonisa ukuthi kungani i-UHPC ingeyona nje intuthuko encane kodwa inguquko eyisisekelo kulokho okungenzeka ngezinto zokwakha ezithuthukile. Njengoba izindleko zokukhiqiza ziqhubeka zehla futhi ukujwayelana nayo phakathi kosonkontileka kukhula, i-UHPC isesimweni sokuba ithuluzi elijwayelekile kuzo zonke izikhali zonjiniyela.

Ibhubesi elikhulu lomgwaqo onqamula izwe eMidwest United States lalibhekene nokuqhekeka okukhulu emalungeni amaphaneli akhiwe ngaphambilini (precast deck panel joints) emva kweminyaka emithathu nje yokusetshenziswa. Umnikazi, efuna isixazululo sesikhathi eside, wacacisa ukuthi kusetshenziswe i-UHPC closure pour kusetshenziswa ingxube yobunikazi enikezwe i-德州中科新材料有限公司. Amalunga aklelwe ukuthi abe ububanzi obungu-6 amaintji futhi agcwaliswa nge-UHPC eziqinisekayo (self-consolidating) engadingi ukudlidliziswa. Ngemva kokubekwa, impahla yathola amandla angaphezu kuka-16,000 psi emahoreni angu-24, okwavumela ibhuloho ukuthi liphinde livulekele ukuthutha emahoreni angu-48. Ukuhlolwa okuphelele okwenziwa eminyakeni emihlanu kamuva kwembula ukuthi awekho amaqhekeka kunoma yimaphi amalunga angu-120, naphezu kwemithwalo enzima yamaloli nezimo zobusika ezinzima ezibandakanya usawoti wokuncibilikisa iqhwa. Ukujula kokungena kwe-chloride ku-UHPC kwakungaphansi kuka-2 mm, uma kuqhathaniswa nokungaphezu kuka-20 mm kukhonkolo ojwayelekile oseduze kwamalunga. Leli cala likhombisa ngokusobala ukuthi izinto zokwakha ezithuthukisiwe zingawaqeda amaphutha avame kakhulu emabhulohweni — ukuwohloka kwamalunga — futhi zinikeze impilo yokusebenza engaphezu kweminyaka engu-75 ngokunakekelwa okuncane. Umnikazi wephrojekthi ubike ukwehla okungu-60% ezindlekweni zomjikelezo wokuphila uma kuqhathaniswa nokusebenzisa ukhonkolo olusebenza kahle kakhulu (high-performance concrete) wendabuko.

Umkhiqizi wekhonkolo owenziwe ngaphambilini eNingizimu-mpumalanga ubengaphansi kwengcindezi yokuletha ama-bridge girder angu-200 omklamo wokushintshana komgwaqo onomkhawulo wesikhathi. Ngokushintsha kusuka kukhonsathi evamile engu-10,000 psi kuya kufomula ye-UHPC eyakhiwe yi-德州中科新材料有限公司, umkhiqizi wehlisa umjikelezo wokwelapha kusuka ezinsukwini eziyi-7 kuya emahoreni angu-18 kuphela. Lokhu kwavumela izindawo ezifanayo zokuthela ukuthi ziphinde zisetshenziswe kabili ngesonto esikhundleni sokukanye, okuphumelelayo ekuphindaphindeni umthamo wokukhiqiza. Isikhathi somklamo wonke sancishiswa ngama-40%, okonga usonkontileka izigidi ezinkulu ezimweni zokulimala kanye nezindleko eziphezulu. Ama-girder e-UHPC nawo abenesisindo esincishisiwe ngama-30% kunama-girder avamile alinganayo ngoba i-cross-section yayincishiswa kuyilapho kugcinwa umthamo ofanayo wokulayisha. Lokhu kwanciphisa izindleko zokuthutha futhi kwavumela amakhreyini amancane ukuze akwazi ukuphakamisa. Impumelelo yalo mklamo iholele umkhiqizi ukuthi aguqule wonke umugqa wakhe wemikhiqizo e-prestressed uye ku-UHPC, embeka njengomholi ekwakhiweni kwekhonkrithi ethuthukile. Lezi zibonelo zangempela ziyabonisa ukuthi izinto zokwakha ezithuthukile akuzona nje ithiyori — ziletha ukonga okulinganisekayo, amashejuli asheshayo, nokusebenza okuphezulu okuqondile okuthuthukisa inzuzo yabanikazi nosonkontileka ngokufanayo.

Uma kukhulunywa ngezinto ezithuthukisiwe zokwakha, ubuchwepheshe bomhlinzeki wakho bubaluleke ngangokwenani lezinto ngokwazo. I-Dezhou Zhongke New Materials Co., Ltd. ibe ngumholi wezobuchwepheshe obuphezulu ekwakhiweni kwezinto zokuhlanganisa ukhonkolo (concrete admixtures) kanye nezindlela ezithuthukisiwe zokwakha kusukela ngo-2003, inesikhungo sokucwaninga nokuthuthukisa (R&D) esizinikele ekwakheni izingxube ze-UHPC ezenziwe ngokwezidingo ezithile zephrojekthi. Ngokungafani nabahlinzeki abajwayelekile, sinikeza ukwesekwa okuphelele kwezobuchwepheshe endaweni yomsebenzi — kusukela ekuthuthukisweni kwezingxube, ukuhlolwa kwamaqoqo, ukuhlinzekwa ngesiqondiso sokubekwa, kuya ekuqapheni ikhwalithi. Ithimba lethu liyaqonda ukuthi yonke iphrojekthi inezidingo ezihlukile: ibhuloho endaweni ebandayo lidinga ukumelana nokushintshashintsha kwamazinga okushisa (freeze-thaw resistance) okuhlukile kunaleso sesakhiwo sasolwandle esivezwa uketshezi lukasawoti, futhi imboni yokwakha ngamaphaneli (precast plant) idinga ukukhula kwamandla kusenesikhathi okuhlukile kunalokho kokulungisa endaweni. Sisebenza ngokuqondile nonjiniyela bakho ukwenza izinto zihambisane nezidingo zakho eziqondile, siqinisekisa ukuthi uthola ukusebenza okuphezulu kakhulu ngaphandle kokukhokhela izici ezingadingekile.

Ukusebenza ngendlela efanele ngezindleko kungenye yezinsika zom пропозиция yethu yokubaluleka. Ngokuthuthukisa ukupakishwa kwezinhlayiyana kanye nomthamo we-fiber, sinciphisa inani le-binder elidingekayo ukuze sifinyelele amandla ahlosiwe, sithobe izindleko zezinto kuyilapho sigcina izakhiwo ezisezingeni eliphezulu. Izinto zethu ezithuthukisiwe zokwakha zisekelwa ukuhlolwa okuqinile kwezinkampani zangaphandle kanye nezitifiketi, okukunikeza ukuzethemba ekuthobeleni izindinganiso ze-ASTM, AASHTO, kanye nezindinganiso zendawo. Sikunikeza nokusekelwa kwezokuthutha ukuze kuqinisekiswe ukuthi izinto zifika ngesikhathi futhi zisesimweni esihle, ngisho nakumasevisi akude. Ukukhetha i-德州中科新材料有限公司 kusho ukusebenzisana nethimba elihlala linolwazi lwakamuva ngezinto zokwakha ezithuthukisiwe futhi eletha lolo lwazi kuwo wonke amaphrojekthi. Noma ngabe udinga ingxube evamile ye-UHPC yokuxhuma amabhuloho noma ingxube ekhethekile yokwakha okwenziwa ngaphambilini, sinolwazi namandla okuletha.Vakashela ikhasi lethu lasekhaya ukuze ufunde kabanzi ngenkampani yethu nokuzibophezela kwethu ekusunguleni izinto ezintsha. Ukuze uthole imininingwane eningiliziwe yomkhiqizo, hlola ikhasi lethu le-IMIKHIQIZO, lapho uzothola khona uhla lwethu olugcwele lwezithasiselo zikakhonkolo zokusebenza okuphezulu nezixazululo ze-UHPC. Ungafunda futhi ngomlando wethu namakhono ezobuchwepheshe ekhasini lethu elithi IKHASI LETHU NGAYE, futhi hlala unolwazi ngezitayela zemboni ngokusebenzisa i-IKHASI LEZINDABA.

Ubufakazi bucacile: izinto zokwakha ezithuthukisiwe ezinjenge-UHPC akuseyona imikhiqizo encane egcinelwe amaphrojekthi ocwaningo. Ziyizixazululo ezingabazekayo, ezingabizi kakhulu eziletha ukuqina okuphezulu, ukwakha okusheshayo, kanye nezindleko eziphansi zomjikelezo wokuphila. Njengoba izidingo zengqalasizinda zikhula futhi izabelo zokugcina zincipha, abanikazi nosonkontileka abamukela lobu buchwepheshe bazothola inzuzo enkulu yokuncintisana. Kusukela ekuqedeni ukuqhekeka kwamajoyinti emabhulohweni kuya ekusheshiseni ukukhiqizwa kwe-precast ngama-40%, izinzuzo ziyabonakala futhi zisheshe zitholakale. I-德州中科新材料有限公司 ilungele ukukusiza ukuthi wenze ushintsho ngokuqondisa kochwepheshe, ukwakheka okukhethekile, nokusekelwa okuthembekile. Ungavumeli iphrojekthi yakho elandelayo isale emuva — xhumana nathi namuhla ukuze uthole ukubonisana kwamahhala nesilinganiso. Ndawonye, singakha izakhiwo ezihlala isikhathi eside, zisebenze kangcono, futhi zingabizi kakhulu esikhathini eside.Xhumana nathi ngekhasi lethu lokusekela ukuze uqale ingxoxo.

Izinto zokwakha ezithuthukisiwe yizinto ezenziwe ngobunjiniyela ezinamandla amakhulu emishinini, amakhemikhali, nangokomzimba uma ziqhathaniswa nokhonkolo ojwayelekile, insimbi, noma ugcino. Zihlanganisa i-Ultra-High Performance Concrete (UHPC), ama-polymer aqiniswe ngemicu, ukhonkolo oluzilungisayo, nezingxube ezishintshwe nge-nano. Umehluko omkhulu amandla aphezulu (i-UHPC idlula ama-psi angu-20,000), ukungena kwamanzi okuphansi kakhulu, izikhathi zokuqina ezisheshayo, nokuqina okukhulu ekukhandeni, ukugqwala, nasekuphindaphindweni kokushisa nokubanda. Lezi zakhiwo zivumela izingxenye ezincane, amabanga amade, nokunciphisa ukulungiswa ngesikhathi sokuphila kwesakhiwo.

I-UHPC ithola amandla angavamile ngokusebenzisa izindlela ezihlanganisiwe: ayisebenzisi amatshe amakhulu (coarse aggregate), kodwa isebenzisa izimpushana ezicwengekile eziminyene (usimende, i-silica fume, i-quartz flour); ifaka inani elikhulu lezinsimbi noma imicu yokwenziwa ukuze ithole ukuqina nokulawula ukuqhekeka; futhi igcina isilinganiso esiphansi kakhulu samanzi nokubopha (ngokuvamile 0.18–0.22). Lokhu kwakha i-matrix ehlangene kakhulu, enezimbotshana ezimbalwa (low-porosity) ekwazi ukumelana nengcindezi yokucindezela engaphezu kuka-20,000 psi futhi ikhule ibe ngaphezu kuka-15,000 psi phakathi namahora angu-24. Ukwakheka okuminyene kwe-microstructure kubuye kuvimbele ukungena kwamanzi nama-chloride, okunikeza i-UHPC ukuqina okuvelele.

I-UHPC isetshenziswa ezinhlelweni eziningi ezahlukene, okuhlanganisa ukuxhumana kwamabhuloho akhiwa endaweni, izinsimbi zamabhuloho ezenziwe ngaphambilini, amaphaneli amancane ezakhiwo, izitebhisi, izivikelo zelanga, ukulungiswa kongqimba olungaphezulu, ukulungiswa kwezakhiwo ezindala, izitezi zezimboni, nezakhiwo ezimelana nokuqhuma. Kubaluleke kakhulu lapho amandla aphezulu, isisindo esincane, ukwakhiwa okusheshayo, noma ukuqina kwesikhathi eside kubalulekile. Ukuxhumana kwamajoyinti amabhuloho kuwukusetshenziswa okuvame kakhulu, ngoba i-UHPC iqeda ukuqhekeka okuvame ukwenzeka kulezi zindawo zokuhlangana.

Yebo, uma kuhlolwa ngokwesisekelo somjikelezo wokuphila, izinto zokwakha ezithuthukisiwe zivame ukonga kakhulu kunezinye ezijwayelekile. Nakuba izindleko zokuqala zento ngemitha eyi-cubic ingase ibe phezulu, ukonga kuvela ezingxenyeni ezincanyana (ukusetshenziswa kwento encane), ukwakha okusheshayo (ukunciphisa izindleko zabasebenzi nemishini), izindleko eziphansi zokuthutha, kanye nokunciphisa kakhulu izindleko zokulungisa nokugcina emashumini eminyaka. Emaphrojekthini amaningi, abanikazi babona ukuncishiswa kuka-40–60% ezindlekweni zizonke zomjikelezo wokuphila.

I-UHPC idinga ukulungiswa okuthile ekuphathweni kwayo, kodwa akunzima ukusebenza nayo uma kunikezwa umhlahlandlela ofanele. Iningi lezingxube ze-UHPC ziyazihlanganisa, okusho ukuthi zigeleza kalula ezifinyelelweni ngaphandle kokudlidliza. Okubalulekile okumele kucatshangelwe ukulawula okunembile kwamanzi (okuvame ukunikezwa ezikhwameni ezilungele ukusetshenziswa noma amabhantshi akalwe ngaphambilini), izikhathi zokuxuba ezinde ukuze kuqinisekiswe ukusabalalisa kwemicu, kanye nezinyathelo ezifanele zokwelapha (ezifana nokumboza ngendwangu emanzi noma ukufaka ikhompawundi yokwelapha). Abahlinzeki abathembekile abafana ne-德州中科新材料有限公司 banikeza ukwesekwa kwezobuchwepheshe endaweni ukuze baqeqeshe amaqembu futhi baqinisekise ukubekwa okuyimpumelelo.

I-UHPC nezinye izinto ezithuthukile zihlanganiswa amazinga amaningana, okuhlanganisa i-ASTM C1856 (Umkhuba Ojwayelekile Wokwenza Nokuhlola Amasampula E-UHPC), i-ASTM C39 (ukuhlola amandla okucindezela), ne-AASHTO M 335 (yokusetshenziswa kwamabhuloho). Izinkampani eziningi ze-DOT zombuso zinemibandela yazo ye-UHPC ezakhiweni zomgwaqo omkhulu. Abahlinzeki abafana ne-德州中科新材料有限公司 baqinisekisa ukuthi imikhiqizo yabo iyahlangabezana noma yeqe lawa mazinga futhi banikeza imibiko yokuhlola eqinisekisiwe yeqoqo ngalinye.

Izinto zokwakha ezithuthukisiwe zinomthelela ekusimameni ngezindlela eziningi: amandla azo aphezulu avumela izingxenye ezinciphile, kunciphisa ubuningi bukakhonkolo nosimende obudingekayo; impilo ende yokusebenza isho ukulungiswa okuncane kanye nemfucuza encane yokudilizwa; ukwakha okusheshayo kunciphisa ukusetshenziswa kukaphethiloli emishinini; futhi imixube eminingi ye-UHPC ifaka izinto zokwakha ezingezelelwe ezifana ne-silica fume ne-slag, okuyimikhiqizo eyinsalela yezimboni. Ezinye izinto zokwakha ezithuthukisiwe nazo zivumela ukusetshenziswa kwezinto ezivuselelwayo ezihlanganisiwe noma imicu ngaphandle kokunciphisa ukusebenza kahle.

Yebo ngokuphelele. I-UHPC imelana ngokukhethekile nokonakala ngenxa yokushisa nokubanda kanye nokukhipha usawoti, ngoba ukungena kwayo kancane kakhulu kuvimbela amanzi ukuba angene ku-matrix. Ezivivinyweni zaselabhorethri, i-UHPC ngokuvamile ibonisa ukulahleka kwesisindo esingaphansi kuka-0.1% ngemva kwemijikelezo engu-300 yokushisa nokubanda, uma kuqhathaniswa nokhonkolo ojwayelekile ovame ukwehluleka ngemva kwemijikelezo engu-100. Isifundo esichazwe kulesi sihloko — ibhuloho e-Midwest elingenawo noma yimuphi ukuqhekeka ngemva kobusika obuhlanu — liqinisekisa ukusebenza okuhle kakhulu ezindaweni ezibandayo.

Bheka umphakeli onobuchwepheshe obufakazelwe ezintweni zokwakha ezithuthukile, umlando wemisebenzi ephumelelayo, kanye nekhono lokuhlinzeka ngamafomula enziwe ngokwezifiso. Umphakeli kufanele anikeze ukwesekwa kwezobuchwepheshe endaweni, idatha yokuhlolwa kwezinkampani zangaphandle, nokwethembeka kwezokuthutha. I-德州中科新材料有限公司 inolwazi olungaphezu kweminyaka engamashumi amabili kuma-admixtures kakhonkolo asebenza kahle kakhulu kanye ne-UHPC, enethimba elizinikele le-R&D kanye nezinsizakalo ezibanzi zokusekela. Ungahlola amakhono abo ku-ikhasi lethu elithi ABOUT US.

Isikhathi sokulethwa sincike esilinganisweni kanye nokwenziwa ngokwezifiso okudingekayo. Ezingxenyeni ezijwayelekile ze-UHPC, abahlinzeki abaningi bangakwazi ukuletha phakathi kwamaviki angu-2–4 ngemva koku-oda. Ukwakheka ngokwezifiso kungadinga amaviki angu-4–8 ukuze kuthuthukiswe, kuhlolwe, futhi kugunyazwe. Kungcono ukuthi uxhumane nomhlinzeki ngesikhathi sokuklama ukuze uqinisekise ukuthi impahla ilungiselelwe kahle futhi ilungele ukuqala ukwakha. Xhumana ithimba lethu lokusekela ekuqaleni kohlelo lwakho lomsebenzi ukuze kuhleleke ukulethwa nokusekelwa kwezobuchwepheshe.