Summary: Kwayoyin da ke da girman kwayar ƙasa ƙasa da 4.75 mm, banda kwayoyin laushi da kuma masu lalacewa, waɗanda aka samo daga dutsun ƙasa, goge-goge ko datti na masana'antu bayan cire ƙasa, sakawa da tacewa na injiniya, ana sani da yashi da aka yi na injina...
Kwayoyin da ke da girman ƙwaya ƙasa da 4.75 mm, banda ƙwayoyin laushi da masu tsatsa, waɗanda aka ƙirƙira daga ƙwayoyi, sharar gida ko kuma ɓarnar ƙanshi na masana'antu bayan cire ƙasa, daskarewa da tacewa, ana fi sani da kankara wanda aka yi da na’ura. Kwayoyin da girman ƙwayar su ke ƙasa da 75 μm a cikin ƙafafun masana’anta ana kiransu da foda dutse.
Shin ƙura a cikin yashin injiniya yana da amfani? Yaya za a sarrafa adadin ƙura? Ga amsoshin.
4 nau'ikan ƙura a cikin yashin injiniya
(1) Foda kyauta: Kwayoyin foda dutse ba sa haɗuwa da juna ba kuma ba sa shaƙa a saman ƙananan ƙwayoyin yashi, kuma za su iya motsawa kyauta a karkashin tasiri na iska da nauyi.
(2) Ganyayyaki na ƙasa: Kwayoyin ƙasa suna haɗuwa sosai don samar da ƙwayar ƙasa mai girma, kuma ƙwayoyin suna haɗuwa da juna. Wannan nau'in ganyayyakin ƙasa yana da wahalar cirewa ta amfani da kayan aikin zaɓar ƙasa na gargajiya saboda girman ƙwayoyin da nauyin ganyayyakin.
(3) Ganyayyaki na haɗuwa: Akwai ƙananan ƙwayoyin dutse da suka kama saman yashi tare da girman ƙwayoyin da ya fi girma. Idan saman ƙwayoyin yashi ya yi daidaito, ƙananan ƙwayoyin dutse sun sauƙaƙe cirewa ta hanyar ƙarfin injiniya, amma idan saman ƙwayoyin yashi ya yi rashin daidaito, ƙananan ƙwayoyin dutse da ƙwayoyin yashi sun kama juna sosai, yana da wahala a raba su ta hanyoyin injiniya na yau da kullum.
(4) Gurasa mai faɗaɗa: A kan saman ƙananan ƙasa, sau da yawa akwai faɗaɗa ko ramuka masu zurfi waɗanda ke da fadi daga 'yan goma zuwa dubban maicen. Sau da yawa waɗannan ramuka suna cike da yawan ƙananan ƙananan duwatsu. Wannan shine hanyar da za a riƙe ƙananan duwatsu sosai.
Aikin ƙananan duwatsu a cikin ƙasa mai ƙarfi da aka yi da injiniya
ruwan jiki
Bincike ya nuna cewa ettringite da aka samar a farkon shigarwa zai zama monosulfur calcium sulfoaluminate a lokacin da ya gabata, wanda zai rage ƙarfin siminti, amma ƙara ƙananan duwatsu masu cike da c
2. Tasirin cikewa
Furanin dutse na iya cika rami a cikin konkrita kuma ya yi aiki azaman mai cika konkrita don kara nauyin konkrita, don haka ya yi aiki azaman hadaddiyar abu mara aiki. Dangane da halayen ƙarancin kayan haɗi da kuma aikin haɗin da ba shi da kyau, ana iya mayar da martani sosai ta amfani da konkritan yashi mai ƙarfi matsakaiciya da ƙasa.
3. tasirin riƙe ruwa da ƙara kauri
ƙarfafa yumbu na ƙarfe na cikin siminti yana ƙunshe da furfuran dutse, wanda zai iya rage haɗarin rabuwa da zubar da haɗin siminti. Tunda furfuran dutse na iya shan ruwa a cikin siminti, yana ƙara yawan amfani da ruwa a kowace mita cubic na siminti. Saboda haka, ƙarin furfuran dutse zai ƙara wa siminti ta hanyar wahala. Bugu da ƙari, ƙara furfuran dutse na iya rage ƙwanƙwasa na siminti da kuma komawa da ƙarin ruwa mai danshi na siminti. Domin, ko da yake siminti ya yi taƙaita, ruwan da furfuran dutse ya sha zai fitar a hankali.
Ko da foda dutse yana taka muhimmiyar rawa a cikin siminti na yashi da injiniya, ba mafi kyau ba ne. Nazarai sun gano cewa adadin foda dutse yakamata ya dace. Babban bangare na foda dutse a cikin yashin injiniya shine kalsium karbonet, amma sakamakon hydration ba iyaka bane kuma kuma ana iyakanta shi ta bangaren siminti. Idan adadin foda dutse ya yi yawa, ba zai taimaka wa haɗuwa tsakanin kayan gini da siminti ba, saboda foda dutse mai kyauta za ta bayyana a cikin siminti ko a yankin canji na interface, wanda hakan zai rage ingancin siminti.
Sarrafa abun da ke cikin kayan dutse a cikin yashi da aka yi da injiniya
Bisa ga bukatun takamaiman tsarin gini, domin cimma abun da ake bukata na kayan dutse, akwai wasu hanyoyi don sarrafa abun da ke cikin kayan dutse:
(1) Hanyar rarraba busasshiyar kayan: Ana amfani da hanyar rarraba busasshiyar kayan a wurin aikin rarraba na biyu, kuma yashin da ya fi ƙanƙanta fiye da milimita 5 ana kai shi kai tsaye ta hanyar jigilar kaya zuwa ajiyar yashi mai kyau, hakan yana rage asarar kayan dutse. A yayin aikin rarraba, wasu daga cikin kayan dutse ana haɗa su a cikin ƙura kuma ana rasa su, sannan kuma na'urar tattara ƙura
(2) Ƙirƙirar rami mai hade: mashin yin yashi yana da nau'ikan rami biyu a cikin aikin: dutse-a-dutse da dutse-a-karfe. Abun ƙarfe na dutse a cikin yadudduka na ƙarfe da aka yi da rami na ƙona dutse-a-karfe ya fi girma, amma farantin kariya mai jure-rashin amfani yana lalacewa da sauri kuma farashinsa ya fi girma. Abun ƙarfe na dutse a cikin yadudduka na ƙarfe da aka yi da rami na ƙona dutse-a-dutse ya fi ƙanƙanta kuma farashinsa ya fi ƙanƙanta. Hadawar hanyoyin ƙona biyu za ta iya sarrafa abun ƙarfe na dutse da kyau.
(3) Ƙirƙirar hade: Haɗa injin yin yadudduka da injin rod a cikin masana'antar don ƙara ƙarfe
(4) Hanya ta samar da kayan gini ba ruwa ba: Babban aikin samar da ƙarfe na ƙarfe shine cewa ƙasa bayan rushewa da aikin yin ƙarfe, ana kai shi kai tsaye zuwa allo mai rawa, inda aka rarraba abubuwa masu girma fiye da milimita 5, kuma ƙarfe ƙananan milimita 5 ana kai shi kai tsaye zuwa akwatin ƙarfe na ƙarshe ta hanyar kai tsaye, wanda zai iya rage asarar ƙarfe.
(5) Mayar da ƙarfe: Amfani da kayan aikin mayar da ƙarfe don mayar da ƙarfe da aka rasa a yayin rarraba, bushewa da samar da ƙarfe, sannan a hada ƙarfe da aka mayar da shi daidai a cikin fi
Bayan daukar hanyoyin da aka ambata a sama, za a iya sarrafa abun da ƙasa ta dutse ke da shi a cikin samar da yashi a kewayon 10-15%.
Samun Magani
Aika Sako