Menene Ya faru Idan Kankara Yayi Jika sosai?

1. Gabatarwa

Kankareshine ginshikin ginin zamani. Tun daga tituna da gadoji zuwa gidaje da manyan gine-gine, tsayin daka da iyawar sa sun sa ya zama kayan gini da aka fi so a duniya. Duk da haka, aikin kankare ya dogara sosai a kan nau'in haɗuwa. Ɗaya daga cikin abubuwan da suka fi mahimmanci shine rabon ruwa-zuwa-ciment (w/c). Duk da yake ruwa yana da mahimmanci don samar da ruwa da aiki, yawancin shi zai iya haifar da matsaloli masu yawa.KimaCell® ya bincika abin da ke faruwa lokacin da kankare ya yi yawa, yana nazarin sakamakon akan ƙarfi, dorewa, ƙayatarwa, da aiki na dogon lokaci.

2. Matsayin Ruwa a Kan Kankara

Ruwa a cikin kankare yana amfani da dalilai da yawa:

• Ƙaddamar da halayen sinadaran da siminti (hydration)
• Yana haɓaka iya aiki don sakawa da ƙarewa
• Yana sauƙaƙe haɗawa da haɓakawa

Duk da haka, kawai kusan 25-30% na ruwa ta nauyin siminti ana buƙata don cikakken hydration. Duk wani ƙarin ruwa yana ƙara ƙimar w/c kuma yana dilutes haɗin, yana lalata samfurin ƙarshe.

3. Fahimtar Ratio-zuwa Siminti

Matsakaicin w/c shine rabon nauyin ruwa zuwa nauyin nauyinsiminti da aka yi amfani da shi a cikin haɗin kai. Ƙananan rabo yana kaiwa zuwa mafi girma ƙarfi da karko amma rage aiki. Matsayi mafi girma yana inganta ƙarfin aiki amma yana rage ƙarfi kuma yana ƙara porosity. Madaidaitan rabo yawanci kewayo daga 0.4 zuwa 0.6 don yawancin aikace-aikacen tsarin.

4. Alamomin Kankare Dake Da Yawa

Lokacin da kankare ya jika sosai, alamun labari da yawa suna fitowa:

• Yawan zubar jini (ruwa yana tashi sama)
• Rarraba tari dasiminti manna
• Lokacin saitawa a hankali
• Ƙimar slump sama da ƙayyadaddun ƙima
• Laitance saman ko ƙura

5. Tasiri akan Ƙarfin Ƙarfi

Ƙarfin matsi shine mafi mahimmancin kayan kankare a aikace-aikacen tsari. Ruwan da ya wuce kima yana haifar da ƙara yawan porosity na capillary, wanda ya raunana matrix. Bincike ya nuna cewa karuwar w/c rabo daga 0.4 zuwa 0.6 na iya rage karfin matsawa har zuwa 30%. Wannan asara yana lalata ƙarfin ɗaukar nauyi kuma yana iya haifar da gazawar tsarin da bai kai ba.

6. Tasiri akan Dorewa

Dorewa yana nufin ikon kankare don jure yanayin muhalli kamar daskarewar hawan keke, bayyanar sinadarai, da abrasion. Ruwa da yawa yana ƙara haɓakawa, yana sa kankare ya fi sauƙi ga:

• Shigar da sinadarin chloride da lalata ƙarfin ƙarfe
• Sulfate harin da alkali-silica dauki
• Shigar danshi yana haifar da lalacewa-narkewa

7. Fatsawa da Ragewa

Abubuwan da ke cikin ruwa mafi girma yana haifar da raguwar bushewa yayin da cakuda ke rasa ruwa mai yawa. Wannan yana haifar da:

• Fashewar filastik
• Bushewar shrinkage fasa
• Crazing (lafiya ta fashe)

Wadannan tsaga suna rage mutunci da kyawun simintin kuma suna iya zama hanyoyin ruwa da sinadarai.

8. Karancin Sama

Ganyen rigar yakan haifar da ƙarancin ƙarewar ƙasa saboda:

• Zubar da jini da rashin lafiya
• Kurar kura (rauni mai saurin lalacewa)
• Rashin ƙarancin mannewa na sutura da ƙarewa

Irin waɗannan lahani ba kawai kayan ado ba ne amma har ma suna aiki, musamman a cikin benaye da shimfidar layi.

9. Kayyade Lokaci da Matsalolin Magancewa

Yawaitarigar kankareyana ɗaukar tsayi don saitawa. Tsawaita lokacin saiti yana rikitar da jadawalin gini kuma yana iya haifar da rashin isasshen magani. Maganin da ba daidai ba zai iya haifar da:

• Rashin cika ruwa
• Rashin haɓaka ƙarfin ƙarfi
• Fashewar saman

10. Rarraba da hada zuma

Ruwan da ya wuce gona da iri zai iya haifar da tara tarin nauyi ya daidaita yayin da mai sauƙin siminti ya tashi, yana haifar da rarrabuwa. Wannan yana haifar da:

• Haɗin zuma (babu a cikin siminti)
• Rashin daidaituwa na rarraba kayan
• Rage mutuncin tsarin

11. Damuwa na Ayyuka na Tsawon Lokaci

Ruwan kankare da yawa na iya wuce binciken farko amma yana fama da:

• Rage tsawon rayuwa
• Farkon tabarbarewa
• Ƙara farashin kulawa

Wadannan al'amura galibi suna tasowa bayan shekaru, suna yin ikon sarrafa haɗuwa da wuri mai mahimmanci.

12. Tsaro da Haɗarin Tsari

Membobin tsarin da aka yi daga siminti mai rauni suna haifar da haɗari mai tsanani:

• Gimshikai da katako maiyuwa ba za su goyi bayan nauyin ƙira ba
• Filayen fashe ko fashe-fashe na iya cutar da mazauna ciki
• Ƙarƙashin haɓakar haɓakawa na ƙarfafawa zai iya haifar da rushewa

13. Tasirin Tattalin Arziki

Yin amfani da ruwa mai yawa a cikin haɗuwa zai iya rage farashin ɗan gajeren lokaci ta hanyar inganta aikin aiki, amma tasirin tattalin arziki na dogon lokaci ya haɗa da:

• Kudin gyarawa da gyarawa
• Abubuwan da ake bin doka
• Rage rayuwar sabis

14. Mafi Kyawun Halaye Don Gujewa Kankalin Jika Yawaitu

Don hana yawan ruwa:

• Amfanimasu rage ruwa or masu yin filastik
• Yi amfani da sarrafa batching da hadawa
• Yi gwaje-gwajen slump kuma daidaita abun cikin ruwa daidai
• Koyar da ma'aikatan kan layi game da daidaituwar haɗuwa

Ruwa takobi ne mai kaifi biyu a cikin kankare. Duk da yake yana da mahimmanci don samar da ruwa da iya aiki, yawan ruwa yana lalata kusan kowace ƙayyadaddun ƙayyadaddun ƙayyadaddun siminti. Daga raguwar ƙarfi da dorewa zuwa ƙarar tsagewa da lahani na sama, haɗarin jika fiye da kima suna da mahimmanci. Ta hanyar fahimtar illolin da yin amfani da ƙira mai kyau da sarrafa inganci, waɗannan haɗarin za a iya rage su, tabbatar da dawwama kuma amintaccen tsarin siminti.

At Kima Chemical, Mun samar da high quality-gina-sa additivesciki har da:

HPMC(Hydroxypropyl Methylcellulose) - don kyakkyawar riƙewar ruwa da iya aiki

MHEC(Methyl Hydroxyethyl Cellulose) - manufa don daidaitaccen danko da aikace-aikacen santsi

RDP(Redispersible Polymer Powder) - don ingantaccen ƙarfin haɗin gwiwa, sassauci, da juriya
Ko kuna kera kankare don ƙarewa mai santsi, ƙwanƙwasa ƙwanƙwasa, ko aikace-aikace masu sassauƙa a cikin tsarin rufin zamani,Kima Chemicaladditives suna taimaka muku isar da samfuran dorewa masu inganci, abokan cinikin ku za su iya amincewa da su.