Icyuma cya fibre cyashimangiye beto (SFRC) ni ubwoko bushya bwibikoresho bigizwe no guterwa no kongeramo amafaranga make yicyuma muri beto. Yateye imbere mu rugo no mu mahanga mu myaka yashize. Itsindira amakosa yimbaraga za kanseri nto, urugero ruto rwanyuma nubukungu bwa beto. Ifite imitungo myiza nk'imbaraga za kanseri, kunyeganyega, kurwanya imiti ye, irwanya imiti, kurwanya umunaniro no gukomera. Byakoreshejwe muburyo bwubuhanga bwa hydraulic, umuhanda nikiraro, kubaka nibindi bikoresho byubwubatsi.

 

一.Gutezimbere fibre ya steel yashimangiye beto

 

Fibre yashimangiye beto (FRC) ni amagambo ahinnye ya fibre ashimangiwe. Mubisanzwe ni igikoma gishingiye kuri sima kigizwe na sima Paste, minisiteri cyangwa fibre na fibre na fibre, fibre idasanzwe cyangwa fibre kama bashimangiye ibikoresho. Nibintu bishya byubaka byakozwe muburyo buke kandi busa na fibre nziza kandi nziza hamwe nimbaraga za kanseri yinshi, kurambura hejuru no kurwanya alkali hejuru ya alkali muri matrix. Fibre muri beto irashobora kugabanya ibisekuru bya kare muri beto kandi no kwagura ibice munsi yimbaraga zidasanzwe, gutsinda neza imbaraga zidasanzwe, no kurwara imiti mibi ya beto, kandi bitezimbere cyane imikorere yo kudatungana, kutarwanya amazi, kurwanya ubukonje no gukumira ibintu bifatika. Fibre yashimangiye beto, cyane cyane fibre yicyuma yashimangiye beto, yakuruye byinshi kandi byita ku bahanga mu masomo n'ubuhanga mu nzego zifatika kubera imikorere yayo. 1907 Impuguke mu Buso Soviet B П. Hekpocab yatangiye gukoresha fibre fibre yashimangiye beto; Mu 1910, HF Porter yasohoye raporo y'ubushakashatsi kuri fibre ngufi yashimangiye beto, avuga ko iyo fibre ngufi igomba gutatanya kuri beto kugirango ishimangire ibikoresho bya Matrix; Mu 1911, Graham ya Amerika yongeyeho fibre yicyuma muri beto isanzwe kugirango yiteze imbaraga no gutuza kwa beto; Mu myaka ya za 1940, Amerika, Ubwongereza, Ubufaransa, Ubudage, Ubuyapani n'ibindi bihugu byakoze ubushakashatsi bwinshi bwo kunoza ibyuma kugira ngo baterenduke imiterere ya fibre yicyuma kugirango itezimbere imbaraga zibanga hagati ya fibre na marix vuruza; Mu 1963, JP Rorualdi na GB Batson basohoye impapuro ku rwego rwo guteza imbere ibyuma byaciwe, kandi bashyira imbere imbaraga za fibre zaciwe na beto ishingiye ku ibyuma bifatika bigira uruhare rugaragara Mu guhangayikishwa na mine (igitekerezo cya fibre), bityo utangire icyiciro gifatika cyiterambere ryibi bikoresho bishya. Kugeza ubu, hamwe no gukwirakwiza no gushyira mu bikorwa fibre ya steel yashimangiye beto, kubera ikwirakwizwa ritandukanye rya fibre rishingiye kuri beto, ahanini ni ubwoko bwa fibre. gushimangira beto.

 

二.Gushimangira uburyo bwa fibre ya feri yashimangiye beto

 

1.Umukanishi. Igitekerezo cyukanika rushingiye ku gitsina gashingiye ku nyigisho ya fibre ikomeza kandi ihujwe no kugabura ibiranga fibre ya steel i Beto. Muriyi nyigisho, abahigo bafatwa nkibipimo bibiri byicyiciro cyicyiciro cya fibre nkicyiciro kimwe na matrix nkikindi cyiciro.

 

Poroy Spacing. Igitekerezo cya fibre, kizwi kandi nkigitekerezo cyo kurwanya Crack, gisabwa ukurikije imirongo ya elastique. Iyi nyigisho ifata ko ingaruka zo gushimangira fibre zifitanye isano gusa na fibre imwe yakwirakwijwe (byibuze intera).

 

三.Isesengura ryakozwe na fibre ya fibre ya Steel yashimangiye beto

 

1.Ibyuma bya fibre byashimangiye beto.Icyuma cya fibre cyashimangiye beto ni ubwoko bwumwanda ugereranije na bene yashyizweho no kongeramo umubare muto wa karubone, ibyuma bidafite ishingiro na fibre na frp muri beto. Umubare uvanze na fibre ibyuma muri rusange 1% ~ 2% by ingano, mugihe 70 ~ 100kg ibyuma bivanze muri buri metero nziza ya beto kuburemere. Uburebure bwa fibre ibyuma bugomba kuba 25 ~ 60m, diameter igomba kuba 0.25 ~ 1.25mm, hamwe nuburebure bwuburemere bugomba kuba busanzwe bugomba kuba busanzwe, ntishobora kunoza ibintu bisanzwe, kunyerera, kunama , kwambara no kurwanya ibihano, ariko nanone uzamure imbaraga zo kuvunika no kurwanya ingaruka za beto, no kunoza cyane imyigaragambyo no kunoza imiti, cyane cyane Ubwuzuzanye bushobora kwiyongera inshuro 10 ~ 20. Imiterere ya mashini ya fibre ya steel yashimangiye beto kandi bifatika ugereranije mubushinwa. Iyo ibikubiye muri fibre ya steel ari 15% ~ 20% hamwe nubutaka bwa sima ni 0.45, imbaraga za tensile ziyongera kuri 500% ~ 180%, imbaraga zingirakamaro zirigera kuri 10 ~ 20 Times, imbaraga zumunanizo ziyongera kuri 15 ~ 20, ubuhanga bworoshye bwiyongera kuri 14 ~ 20, kandi kwambara bitera imbere cyane. Kubwibyo, fibre ya feri yashimangiye beto ifite ibintu byiza byumubiri na robine kuruta beto.

2.Rebrid fibre beto. Amakuru yubushakashatsi afatika yerekana ko fibre yicyuma ntabwo iteza imbere imbaraga zituje rya beto, cyangwa ndetse igabanya; Ugereranije na beto yoroshye, hari ibintu byiza kandi bibi (kwiyongera no kugabanuka kwimitanya, no kurwanya ihohoterwa rya fibre yashimangiye beto no gukumira indwara za plastike kare. Byongeye kandi, fibre fibre yashimangiye beto ifite ibibazo bimwe na bimwe, nka dosage nini, igiciro kinini, ingese kandi nta nkomyi kandi nta kurwanywa biturika biterwa n'umuriro, bikaba byagize ingaruka ku bikorwa byayo. Mu myaka yashize, intiti zimwe na zimwe zo mu rugo ndetse no hanze zatangiye kwitondera storete fibre nziza (HFRC), ngerageza kuvanga imitungo itandukanye, wigire kuri mugenzi wawe, kandi ukine ingaruka "nziza hybrid" mu nzego zitandukanye kandi Gupakira ibyiciro byo kuzamura ibintu bitandukanye bya beto, kugirango duhuze ibyifuzo byimishinga itandukanye. Ariko, kubijyanye n'imiterere yacyo itandukanye, cyane cyane imiyoboro ya buri munaniro no kunanirwa, amategeko yiterambere hamwe nimizigo yangiritse cyangwa imbaraga zo kuvanga Hagati y'ibice by'ibikoresho bigizwe no gushimangira no gushimangira uburyo bwo gushimangira, imikorere ya Famigue, uburyo bwo gutsindwa n'ikoranabuhanga ryo kubaka, ibibazo yo kuvanga igishushanyo mbonera bigomba kwigwa.

3.Imyanda ya fibre yicyuma yashimangiye beto.Monolithic fibre ishimangira beto ntabwo byoroshye kuvanga neza, fibre biroroshye gutera imbere, umubare wa fibre nini, kandi ikiguzi ni kinini cyane, kigira ingaruka kumigambi yayo. Binyuze mu mubare munini wubwubatsi nubushakashatsi bushya, ubwoko bushya bwimiterere ya fibre ya fibre, layer fibre fibrefd beto (lsfrc). Umubare muto wa fibre ihanamye ikwirakwizwa hejuru no hepfo yumuhanda plab, naho hagati iracyari urwego rurerure. Fibre ibyuma muri LSFRC muri rusange ikwirakwizwa intoki cyangwa muburyo bwa mashini. Fibre yicyuma ni ndende, kandi uburebure bwa diametteri muri rusange hagati ya 70 ~ 120, yerekana kugabana ibice bibiri. Utitaye kumiterere ya mashini, ibi bintu ntabwo bigabanya cyane cyane fibre yicyuma, ahubwo yirinda ibintu bya fibre agglomeration ya fibre mu kuvanga fibre za fibre zishimangiwe. Byongeye kandi, umwanya wa steber fibre ya stered muri beto ifite ingaruka zikomeye ku mbaraga zihindagurika rya beto. Ingaruka zo gushimangira ibyuma bya fibre munsi ya beto nibyiza. Hamwe n'umwanya wa Steber fibre ya Steel wazamutse, ingaruka zo gushimangira zigabanuka cyane. Imbaraga zoroheje za LSFRC zirenze 35% zirenze zirenze iyo ngwato rusanzwe hamwe nindi miterere ivanze, iri munsi gato ugereranije nubwa fibre ya stegral yashimangiye. Ariko, LSFRC irashobora kuzigama ibiciro byinshi, kandi ntakibazo cyo kuvanga bigoye. Kubwibyo, LSFRC ni ibintu bishya hamwe ninyungu nziza nubukungu hamwe nibisabwa mugari hamwe nibisabwa mugari, bikwiye kuganwa no gusaba mubwubatsi bwa pavement.

 

4.Amaguru ya Hybrid fibre.Firefe ya Hybrid fibre yashimangiye beto (LHFRC) nibikoresho bigizwe no kongeramo fibre ishingiye kuri LSFRC kandi Hagarika Imbaraga nini cyane hamwe nimbaraga ndende za kanseri hamwe nicyuma cyo hejuru Fibre beto na beto yo hejuru murwego rwo hagati. Irashobora gutsinda intege nke za LSFRC umurongo uhuza urutonde kandi wirinde ibyago byumutekano nyuma yicyuma cyo hejuru ikaramurwa. LHFRC irashobora kuzamura cyane imbaraga zihindagurika rya beto. Ugereranije na beto isanzwe, imbaraga zayo zoroheje zoroshye kuri 20%, kandi ugereranije na LSFRC, imbaraga zayo zoroheje ziyongereyeho 2,6%, ariko ntizikomera kuri moteri ya elaxitse. Imyitwarire ya elaxitse ya lhfrc ni 1.3% kurenza iyo ya beto byoroshye na 0.3% munsi ya lsfrc. LHFRC irashobora kandi kongera imbaraga zihindagurika kwa beto, kandi indangagaciro yacyo igoye ni inshuro 8 za beto zidasanzwe na 1,3 kuri LSFRC. Byongeye kandi, kubera imikorere itandukanye ya fibre ebyiri cyangwa nyinshi muri LHFRC muri beto, hakurikijwe imyumvire myiza ya fibre na fibre nziza muri beto, kuramba, gukomera, gukomera, guhanagura , imbaraga zoroheje nimbaraga za kanseri yibikoresho, kunoza ubuziranenge bwibintu no gutembera ubuzima bwa serivisi yibikoresho.

-Abstract (Ubwubatsi bwa Shanxi, Vol. 38, No 11, Chen Huiqing)