Sabbin abubuwan ci gaba a cikin ingantattun ingantattun hanyoyin da zasu iya bayar da mahimmancin bayani game da inganci, karkarar, da kuma bin ka'idodin zanen zane.
Ginin shinge na kankare na iya ganin abubuwan gaggawa, kuma kwangilar tana buƙatar tabbatar da inganci da ƙarfin hali na Cast-a-wurin kankare. Waɗannan abubuwan da suka faru sun haɗa da bayyanar ruwan sama yayin zubadden ruwa, aikace-aikacen da aka shirya da fatattaka a tsakanin 'yan awanni bayan da aka zuba, da kuma maganganun kankare da kuma matsalolin. Ko da ana iya biyan bukatun karfin da sauran gwaje-gwaje na kayan aiki, injiniyoyi na iya buƙatar cirewa da kuma sauyawa ɓangarorin shimfidar wuri saboda suna da damuwa game da ko kayan shiga suna haɗuwa da ƙayyadaddun zane.
A wannan yanayin, petrography da sauran abubuwan da suka dace da su na iya samar da mahimman bayanai game da inganci da ƙwararrun abubuwan da aka ga dama kuma suna haɗuwa da ƙayyadaddun aiki.
Hoto 1 Adadin hagu ya nuna na'urar don auna tsayin tsaran silinda na kankare. Hoto na dama yana nuna alaƙar da ke tsakanin tsayarwar ƙarni da w / c. Chunyu qiao da drip, kamfanin twining
Dokar Abram: "ƙarfin rikitarwa na ƙwarjiyar da aka cakuda ita ce mafi girman gwargwadon rakiyar ruwa mai ruwa."
Farfesa Tuff Baya ga aiwatar da ƙarfin rikitarwa, da ruwa ciminti (W / cm) yanzu ya fifita saboda maye gurbin kayan ciminti kamar su ƙarin ash da slag. Hakanan babbar sigar sigogi ne na kankare. Yawancin karatu sun nuna cewa hadawar kankare tare da w / cm ƙasa da ~ 0.45 suna da dawwama ga daskararren salts a cikin ƙasa.
Capillary pores sune bangare na ciminti slurry. Sun kunshi sarari tsakanin samfuran ciminti da barbashi marasa amfani mara amfani wanda aka cika da ruwa. [2] Capillary pores suna da kyau sosai fiye da ratsa pores kuma bai kamata a rikice da su ba. Lokacin da aka haɗa pores mai tsayayye, ruwa daga yanayin waje na iya ƙaura ta manna. Wannan sabon abu ana kiranta shigar cikin ciki kuma dole ne a rage girman don tabbatar da karkatarwa. Maigidan na microstructure na mai dorewa mai cakuda shine cewa pores ba su da iko maimakon haɗa. Wannan na faruwa ne lokacin da W / cm baya ƙasa da ~ 0.45.
Kodayake yana da wuya a auna gwargwadon auna w /m cm na taurare na musamman na iya samar da mahimmancin kayan tabbaci don binciken tauraruwa. Fluorescence Mustercopy yana samar da mafita. Wannan shi ne yadda yake aiki.
Fluorescence Mustercopy wata dabara ce wacce ke amfani da guduro epoxy da kyanyen haske don haskaka bayanai na kayan. Ana yawanci amfani da shi a cikin ilimin kimiyyar likita, kuma yana da mahimman aikace-aikace a ilimin kimiyya. Aikace-aikacen tsaka-canje na wannan hanyar a kankare ya fara kusan shekaru 40 da suka gabata a Denmark [3]; An daidaita shi a cikin ƙasashen Nordic a 1991 don kimantawa w / c na taurare kankare, kuma an sabunta shi a cikin 1999 [4].
To measure the w/cm of cement-based materials (ie concrete, mortar, and grouting), fluorescent epoxy is used to make a thin section or concrete block with a thickness of approximately 25 microns or 1/1000 inch (Figure 2). Tsarin ya shafi itacen kankare ko satar silinda a cikin tubalan katako (wanda ake kira Blanks) tare da yankin kusan 25 x 50 mm (1 x 2 inci). Ba komai a rufe shi zuwa slide gilashi, an sanya shi a ɗakin kwana, kuma guduro epoxy ana gabatar da shi a ƙarƙashin injin. Kamar yadda W / c yana ƙaruwa, haɗin da adadin pores zai ƙaru, don haka ƙarin epoxy zai shiga cikin manna. Muna bincika flakees a karkashin wani microscope, ta amfani da saitin matatun na musamman don faranta wa Dyes dyes a cikin epoxy resin wuce haddi sigina. A cikin waɗannan hotuna, yankunan baƙi suna wakiltar barbashi mai rauni da barbashi mara amfani mara amfani. Matsar da ɗayan biyun shine m 0%. Cirulla mai haske mai haske shine parfin ra'ayi (ba parcice ba), kuma parlity kuskure ne 100%. Ofaya daga cikin waɗannan siffofin da ke cikin kore "abu" shine manna (Hoto na 2). A matsayin w / cm da prolillated farantin kankare, ƙwararrun kore launi na manna ya zama mai haske da haske (duba Hoto 3).
Hoto na 2. Brryoresce BrryScencece Girman kwance kwance shine ~ 1.5 mm. Chunyu qiao da drip, kamfanin twining
Hoto na 3. Bridoron Searfin flakes ya nuna cewa kamar yadda W / cm Compolaye, manna sannu a hankali zama haske sannu a hankali. Wadannan cakuda suna daure kuma suna dauke da ash ash. Chunyu qiao da drip, kamfanin twining
Mai bincike na hoto ya ƙunshi cire bayanai na adadi daga hotuna. Ana amfani dashi a cikin fannoni daban-daban na kimiya, daga nesa mai nisa na microscope. Kowane pixel a cikin hoton dijital da gaske ya zama abin da bayanai. Wannan hanyar tana ba mu damar haɗa lambobi zuwa matakan launuka daban-daban na haske da aka gani a cikin waɗannan hotunan. A cikin shekaru 20 da suka gabata ko makamancin haka, tare da juyin juya halin tebur a cikin iko da kuma sayen hoto dijital, wanda ya hada da masu samar da manoma na microscop din) suna iya amfani. Yawancin lokaci muna amfani da bincike na hoto don auna matsakaicin rawar da slurry. A tsawon lokaci, mun gano cewa akwai ingantacciyar daidaituwa na ƙididdiga tsakanin W / cm 4 da kuma nuna a cikin wannan adadi (Hoto na 4 da Hoto na 5).
Hoto na 4. Misali na bayanan da aka samo daga tsuntsu mai kyalli. Wannan jadawalin ya sanya adadin pixels a matakin launin toka a cikin hoto guda. Manyan koguna masu uku sun dace da tarawa (Fory kwana), manna (yanki mai launin toka), da kuma void (wanda ba a buɗe shi ba). Haske na manna yana ba mutum damar yin lissafin matsakaicin girman pore da daidaitattun halayenta. Chunyu Qiao da DRP, Twining Comporation Fighari 5. Wannan jadawalin amincewa da su na W / cm cakuda, da kuma pozzolan masarufi. Chunyu qiao da drip, kamfanin twining
A bincike na ƙarshe, ana buƙatar gwaje-gwajen ƙungiyoyi uku don tabbatar da cewa on-site sun hada da hade da haɗi na zane. Har zuwa lokacin da zai yiwu, sami manyan samfuran daga wuraren da suka haɗu da duk ka'idodin yarda da karbuwa, kazalika da samfurori daga masu alaƙa. Za'a iya amfani da ainihin hanyar da aka karɓa azaman samfurin sarrafawa, kuma zaka iya amfani da shi azaman alamomi don kimanta tsarin da ya dace.
A cikin kwarewarmu, lokacin da injiniyoyi da ke da rikodin da aka samo daga waɗannan gwaje-gwaje, yawanci suna karɓar wuri idan wasu manyan halaye na injiniya (kamar ƙarfin ɗakunan injiniya) suna haɗuwa. Ta hanyar samar da ma'aunin adadin da W / cm da samarwa, za mu iya wuce gwaje-gwaje don ayyuka da yawa don tabbatar da cewa cakuda da ake tambaya yana da kyawawan ƙimar da za su fassara zuwa kyakkyawan tsorewa.
David Rothste, Ph.D., PG, Facti shi ne babban Lithropher na DRP, kamfani ne na tagwaye. Yana da shekaru 25 na kwararrun masanin ilimin likitanci gwaninta kuma yana bincika fiye da samfurori 10,000 daga ayyukan sama da 2,000 a duniya. Dr. Chunyu Qiao, babban masanin kimiyya na SPP, kamfanin masanin kimiya, masanin kimiyyar kasa da kayayyakin ciminti. Gwanintarsa ya haɗa da amfani da binciken hoto da kuma girmamawa ta microscopy don yin nazarin ƙwararrun salts, Alkali-silicon halayen, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon, da harin silicon a cikin shuke-shuke shuke-shuke.
Lokacin Post: Satumba 07-2021