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A halin yanzu yanayin da ci gaban Brib na karfafa gwiwa

Brib Reinforcece (SFRC) wani sabon nau'in kayan damfara wanda za'a iya zuba shi da fesa ta hanyar ƙara adadin ɗan ƙaramin ƙarfe zuwa ga kankare. Ya bunkasa cikin sauri a gida da kuma kasashen waje a cikin 'yan shekarun nan. Ya mallaki kasawar ƙananan tenerile, ƙarami mafi girman elongation da kuma dukiyar da kankare. Yana da kyawawan abubuwan da ke da ƙarfi kamar ƙarfi, ƙarfin juriya, ƙarfin juriya, crack juriya, da juriya da girman kai da babban tauri. An yi amfani da shi a Injin Injiniyanci, hanya da gada, gini da sauran filayen injiniya.

 

一.Ci gaban ƙarfe na fiber karfafa kankare

 

Fiber karfafa kankare (FRC) shine raguwa na Fiber karfafa karen kwalliya. Yana da yawanci hadari ne da ke tattare da ciminti na ciminti, turmi ko kankare da ƙarfe fiber, kayan fiber na kwayar halitta. Wani sabon kayan gini ne da aka samu ta hanyar watsar da gajere da kyawawan dillalai da tsayin daka da tsayayya da alkalin alkali. Fiber a cikin kankare na iya iyakance ƙarni na farkon a kankare da kuma fadada lahani na waje kamar ƙarancin ƙarfi na kankare, da kuma inganta ayyukan rashin ƙarfi na sannu, mai hana ruwa, juriya da sanyi da kariyar kariyar kankare. Fiber karfafa kankare, musamman fiber karfafa kankare, ya jawo hankalin sosai a cikin da'irar Injiniya da Injiniyan Injiniya ne. 1907 SOVIET SOR B П. Hekpoab ya fara amfani da mohirber karfafa kankare; A cikin 1910, Porter Porter buga rahoton bincike a kan gajeren fiber karforforreces ya kamata a magance wasu fashin karfe don karfafa matrix kayan; A cikin 1911, Graham na Amurka ya kara kirji cikin kankare don inganta ƙarfi da kwanciyar hankali; A shekarun 1940, Amurka, Burtaniya, Faransa, Jamus, Jamus, Jamus, Jamus ta yi bincike da yawa kan ta amfani da daskararre, da kuma fasahar masana'antar ta masana'antu da kuma inganta siffar karfe fiber don inganta ƙarfin haɗin tsakanin fiber da kankare matrix; A shekarar 1963, JP Romaldi da GB Batson sun buga takarda a kan crack da aka kulla yarjejeniya da karfin ƙarfe wanda ke da matukar tasiri ga zargin A cikin damuwa na tensile (ka'idar fadada), saboda haka fara matakin ci gaba na wannan sabon kayan saiti. Har zuwa yanzu, tare da yaduwar Briber karfafa kankare, saboda karfafa fiber da aka karfafa kankare da kuma yayyanber hybrid karfafa kankare.

 

二.Karfafa tsarin ƙarfe na Brib na karfafa gwiwa

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1.Composite ka'idar. Ka'idar da kayan aikin da aka haɗa sun dogara da ka'idar da ke tattare da abubuwan feya na fiber da aka haɗe tare da rarraba halayen zaruruwa a kankare. A cikin wannan ka'idar, ana ɗaukar bukukuwan azaman kayan aiki biyu tare da fiber a matsayin lokaci ɗaya da matrix a matsayin sauran lokaci.

 

Fiber bautar. Fiber ba ka'idar ta, wanda kuma aka sani da crack jingina ka'idar, an gabatar da shi dangane da makanikai na zamani. Wannan ka'idar ta riƙe cewa tasirin ƙarfafa na zaruruwa yana da alaƙa da bayanan juzu'i na gefe-grouping (ƙarami ƙarami).

 

三.Bincike kan matsayin ci gaban ƙarfe na Brib Karfafa Kulawa

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1.Brib Karfafa Kulawa.Briber karfafa gwiwa wani nau'in in mun gwada da suttura da kuma yawan shugabanci da aka kafa ta hanyar ƙara karamin adadin carbon karfe, bakin karfe da fribers zuwa talakawa kankare. Adadin adadin ƙarfe na ƙarfe gabaɗaya 1% ~ 2% ta ƙara, yayin da 70 ~ 100kger fiber an gauraye a kowane mita na kankare ta nauyi. Tsawon zare na ƙarfe ya zama 25 ~ 60mm, diamita ya kamata ya zama 0.25 ~ 7 ~ 700mm, da mafi kyawun rabo daga diamita ya kamata ya zama 50 ~ 700. Idan aka kwatanta shi da tsayin daka, da ba zai iya ba da agaji ba. , sa da crack juriya, amma kuma inganta karfin karaya da tasiri na kankare, kuma inganta gajiya da karkoshin Tsarin, musamman wuya za'a iya ƙara da 10 ~ 20 sau. Abubuwan da ke cikin injin ƙarfe na Brib Karfafa gwiwa da talakawa kwatankwacin China. Lokacin da abun ciki na ƙarfe shine 15% ~ 20% da kuma raguwar ciminti yana ƙaruwa da kashi 120 ~ 180%, karfin tasirin yana ƙaruwa da 10 ~ 20 sau, tasirin karfin ƙara ƙaruwa da 15 ~ 20, karfin sassauƙa yana ƙaruwa da 14 ~ 20, kuma sanannen juriya shima yana inganta muhimmanci sosai. Saboda haka, ƙwaƙwalwar uwar garken fitar da kankare yana da mafi kyawun kayan jiki da na injiniyoyi fiye da yadda aka tsara.

2.ybbridbridber kankare. Bayanan bincike masu dacewa suna nuna cewa Fiber na ƙarfe bai inganta ƙarfin ƙarfin gwiwa ba, ko ma ya rage shi; Idan aka kwatanta da bayyana kankare, akwai ingantacce kuma mara kyau (karuwa da raguwa) ko kuma hanzarta batun karfafawa, tasiri da kuma rigakafin farkon filastik shrinkage na kankare. Bugu da kari, fiber na karfafa gwiwa yana da wasu matsaloli, kamar manyan sashi, babban farashi, tsatsa kuma kusan babu aikace-aikacensa ga fashewar digiri. A cikin 'yan shekarun nan, masana kasashen waje suka fara kulawa da karamar fitowar ta fiber (HFRC), suna ƙoƙarin haɗawa da juna, kuma suna yin wasa ga "ingantaccen tasiri" a matakai daban-daban kuma Loading matakai don haɓaka kaddarorin musamman na kankare, don biyan bukatun ayyukan daban-daban. Koyaya, game da kaddarorin kayan aikinta daban-daban, musamman mahallin ci gaba da lalacewa a ƙarƙashin tsayayyen yanayi, dangantakar da aka daidaita da kuma haɗa yawan haɓaka, dangantakar Tsakanin abubuwan haɗin abubuwa, haɓaka tasiri da karfafa tsarin, aikin gona gajiya, injin gini, matsalolin hade Yawan ƙimar ƙimar yana buƙatar ci gaba.

3.LAYEDN FIBER FIR KARANTA.Monolithic fiber na karfafawa kankare ba sauki don haɗawa ba, zaren yana da sauƙin haɗawa, adadin fiber yana da girma, kuma farashin yana da girma, wanda ke shafar aikace-aikacensa mai yawa. Ta hanyar babban adadin aikin injiniya da ka'idoji, sabon nau'in firayi fiber, fiber mai kare dangi (LSFRC), an gabatar da shi. Smallaramin adadin firam na ƙarfe a ko'ina aka rarraba a saman saman da ƙananan hanyoyin hanya slab, kuma tsakiya har yanzu yana da fili kamewa. Fiber na ƙarfe a cikin LsfRC gabaɗaya an rarraba shi da hannu ko da hannu. Feriber na ƙarfe ya dade, kuma tsawon diamita Racoer gaba ɗaya ne tsakanin 70 ~ 120, yana nuna rarraba abubuwa biyu. Idan ba tare da shafar kayan aikin na ba, wannan kayan ba kawai rage yawan girman ƙarfe ba, amma kuma yana nisanta sabon agogon na fiber na fiber karforced. Bugu da kari, matsayin ƙarfe fiber Layer a kankare yana da tasiri sosai akan karfin mantural na kankare. Hasashen ƙarfafa na ƙarfe na ƙarfe a ƙasan kankare shine mafi kyau. Tare da matsayin ƙarfe fiber Layer ya matsa, tasirin haɓaka yana raguwa sosai. Strupural karfin Lsfrc ya fi 35% sama da na fili kankare tare da wannan haɓaka ƙarfe na fiber mai karfafa gwiwa. Koyaya, LSFRC na iya ajiye farashi mai yawa, kuma babu matsala ga haɗuwa. Sabili da haka, LsfrC sabon abu ne tare da amfanin zamantakewa da tattalin arziki da tattalin arziƙi da kuma manyan lokuta na aikace-aikace, wanda ya cancanci shahara da aikace-aikacen gini.

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4.Fiber na Fiber Fiber.Layer matuban karfafa gwiwa (LHFRC) Littattafai ne da ƙara 0.1% Polypropylene fiber da kuma babban yanki na enllah da maɗaukaki na estongation a cikin babba da ƙananan ƙarfe Fiber kankare da fili kankare a tsakiyar tsakiyar. Zai iya shawo kan rauni na Lsfrc matsakaici na fili kankare da hana yiwuwar haɗarin aminci bayan saman murfin ƙarfe ya lalace. LHFRC na iya inganta ƙarfin ƙwarewar kankare. Idan aka kwatanta shi da bayyane kankare, ƙarfin sa na fili kankare yana ƙaruwa da lsfrc, ƙarfinsa mai ƙarfi yana ƙaruwa da ƙananan ƙwayoyin cuta na daskararre. Modul na Modulus na roba na LHFRC shine 1.3% sama da na fili na pold da 0.3% ƙasa da na LSFRC. Har ila yau, LHFRC na iya haɓaka haɓakar ƙwarewar kankare, da maɓallin ta da ƙarfi yana kusan sau 8 ne na plaverd poust na fili. Bugu da ƙari, saboda abubuwan da suka dace da fiber guda biyu ko fiye a cikin LHFRC a cikin kankare, da ƙwararrun masarar injiniya za a iya amfani da su sosai inganta ƙarfi da haɓaka sosai haɓaka ƙarfi , ƙarfin ƙarfi da ƙarfin tensile na kayan, inganta ingancin kayan da kuma tsawanta rayuwar sabis na kayan.

-Abstract (Shanxi gine-gine, kundi 38, No. 11, Chen Huiqing)


Lokaci: Jun-05-2024