Chii chinoitika kana dope raoma?

Kana dhaka raoma, chirongwa chinonzi hydration chinoitika. Hydration ndiko kuita kwemakemikari pakati pemvura uye cementitious zvinhu mumusanganiswa wedhaka. Izvo zvikamu zvekutanga zvedhaka, izvo zvinopinda hydration, zvinosanganisira simende, mvura, uye dzimwe nguva zvimwe zvinowedzera kana zvinosanganiswa. Kuomesa kunosanganisira matanho anokosha anotevera:

1. Kusanganiswa uye kushandiswa:
   • Pakutanga, dhaka rinosanganiswa nemvura kuti rive paste inoshanda. Paste iyi inozoiswa panzvimbo yezvishandiso zvakasiyana siyana zvekuvaka, sekuvaka zvidhinha, kuisa mataira, kana kupa.
2. Hydration Reaction:
   • Kana yangoiswa, dhaka racho rinoita kemikari inonzi hydration. Kuita uku kunosanganisira simende zvinhu zviri mudhaka zvinosunga nemvura kuita mahydrates. Iyo yekutanga simende zvinhu mumadhaka mazhinji iPortland simende.
3. Setting:
   • Sezvo hydration reaction inofambira mberi, dhaka rinotanga kuisa. Kugadzika (setting) zvinoreva kuomesa kana kuomarara kwedhaka. Nguva yekumisikidza inogona kusiyanisa zvichienderana nezvinhu zvakaita serudzi rwesimende, mamiriro ekunze, uye kuvapo kwezvinowedzera.
4. Kurapa:
   • Mushure mekugadzika, dhaka rinoramba richiwana simba kuburikidza nenzira inonzi kupora. Kurapa kunosanganisira kuchengetedza unyoro hwakakwana mukati medhaka kwenguva yakareba kubvumira kupedzwa kwe hydration reaction.
5. Kuvandudza Simba:
   • Nokufamba kwenguva, dhaka rinowana simba rayo rakagadzirirwa sezvo hydration reaction inoenderera mberi. Simba rekupedzisira rinokanganiswa nezvinhu zvakaita sekuumbwa kwemusanganiswa wedhaka, mamiriro ekurapa, uye kunaka kwezvinhu zvinoshandiswa.
6. Kuomesa (Surface Evaporation):
   • Nepo kuseta uye kurapa kuri kuenderera mberi, pamusoro pedhaka panogona kuita sekuoma. Izvi zvinokonzerwa nekubuda kwemvura kubva pamusoro. Nekudaro, zvakakosha kuziva kuti iyo hydration reaction uye kukura kwesimba kunoenderera mukati medhaka, kunyangwe kana pasi ichiita seyakaoma.
7. Kupedzwa kweHidration:
   • Iyo yakawanda ye hydration reaction inoitika mukati memazuva mashoma ekutanga kusvika masvondo mushure mekushandisa. Zvisinei, nzira yacho inogona kuenderera mberi zvishoma nezvishoma kwenguva yakareba.
8. Kuomesa Kwekupedzisira:
   • Kana iyo hydration reaction yapera, dhaka rinowana mamiriro ayo ekupedzisira akaomarara. Izvo zvinokonzeresa zvinopa rutsigiro rwechimiro, kunamatira, uye kusimba.

Zvakakosha kutevedzera nzira dzekurapa dzakafanira kuti uve nechokwadi chekuti dhaka rinowana simba rayo rakagadzirwa uye kusimba. Kurumidza kuomeswa, kunyanya panguva yekutanga hydration, kunogona kutungamirira kune nyaya dzakadai sekuderedzwa kwesimba, kuputika, uye kusanamatira zvakanaka. Unyoro hwakakwana hwakakosha pakukura kwakazara kwezvinhu zvecementiti mudhaka.

Hunhu chaihwo hwedhaka rakaomeswa, kusanganisira kusimba, kusimba, uye kutaridzika, zvinoenderana nezvinhu zvakaita semusanganiswa dhizaini, kurapa mamiriro, uye nzira yekushandisa.