Kwenzeka ntoni xa udaka loma?

Xa udaka loma, kwenzeka inkqubo eyaziwa ngokuba yihydration. I-Hydration yindlela yokusabela kweekhemikhali phakathi kwamanzi kunye nemathiriyeli yesamente kwiumxube wodaka. Amalungu aphambili odaka, angena emanzini, aquka isamente, amanzi, kwaye ngamanye amaxesha izongezo ezongezelelweyo okanye imixube. Inkqubo yokomisa ibandakanya ezi zigaba zilandelayo:

1. Ukuxuba kunye nesicelo:
   • Ekuqaleni, udaka luxutywa namanzi ukwenza intlama esebenzayo. Olu ncamatheliso luthi ke lusetyenziswe kumphezulu wolwakhiwo olwahlukeneyo, njengokubeka izitena, ufakelo lweethayile, okanye unikezelo.
2. Intshukumo yokuHlunywa kwamanzi:
   • Xa sele isetyenzisiwe, udaka lwenzeka kwikhemikhali ebizwa ngokuba yi-hydration. Le ntshukumo ibandakanya imathiriyeli yesamente kudaka olubophelelayo ngamanzi ukwenza iihydrates. Eyona mathiriyeli yesamente esisiseko kuninzi lodaka yisamente yasePortland.
3. Ulungiselelo:
   • Njengoko i-hydration reaction iqhubeka, udaka luqala ukuseta. Ukumisela kubhekiselele ekuqinisweni okanye ekuqinisweni kwentlama yodaka. Ixesha lokumisela lingahluka ngokusekelwe kwizinto ezifana nohlobo lwesamente, iimeko zokusingqongileyo, kunye nobukho bezongezo.
4. Ukunyanga:
   • Emva kokumiswa, udaka luyaqhubeka ukufumana amandla ngenkqubo ebizwa ngokuba kukunyanga. Ukunyanga kubandakanya ukugcina umswakama owaneleyo ngaphakathi kodaka ixesha elide ukuvumela ukugqitywa kwempendulo ye-hydration.
5. Uphuhliso lwamandla:
   • Ngokuhamba kwexesha, udaka lufezekisa amandla alo ayiliweyo njengoko i-hydration reaction iqhubeka. Amandla okugqibela aphenjelelwa zizinto ezifana nokubunjwa komxube wodaka, iimeko zokunyanga, kunye nomgangatho wezinto ezisetyenzisiweyo.
6. Ukomisa (uMphunga woMphezulu):
   • Ngelixa ukusetwa kunye neenkqubo zokunyanga ziqhubeka, umphezulu wodaka unokubonakala usomile. Oku kubangelwa kukuphuphuma kwamanzi kumphezulu. Nangona kunjalo, kubalulekile ukuba uqaphele ukuba ukuphendulwa kwe-hydration kunye nophuhliso lwamandla luqhubeka ngaphakathi komdaka, nokuba ubuso bubonakala bomile.
7. Ukugqityezelwa koKukhutshelwa kwamanzi:
   • Uninzi lwempendulo ye-hydration yenzeka kwiintsuku ezimbalwa zokuqala ukuya kwiiveki emva kokufakwa kwesicelo. Nangona kunjalo, inkqubo inokuqhubeka ngesantya esisezantsi ixesha elide.
8. Ukuqina kokugqibela:
   • Emva kokuba i-hydration reaction igqityiwe, i-mortar ifezekisa imeko yayo yokugqibela yokuqina. Izinto ezibangelwayo zibonelela ngenkxaso yesakhiwo, ukubambelela, kunye nokuqina.

Kubalulekile ukulandela iindlela ezifanelekileyo zokunyanga ukuqinisekisa ukuba udaka lufumana amandla alo ayiliweyo kunye nokuqina. Ukomisa okukhawulezayo, ngakumbi ngexesha lokuqala kwe-hydration, kunokukhokelela kwimibandela efana nokunciphisa amandla, ukuqhekeka, kunye nokubambelela kakubi. Umswakama owaneleyo uyimfuneko ekuphuhliseni ngokupheleleyo izinto ze-cementitious kwi-mortar.

Iimpawu ezithile zodaka olomileyo, kubandakanywa amandla, ukuqina, kunye nokubonakala, kuxhomekeke kwizinto ezifana noyilo lokuxuba, iimeko zokuphilisa, kunye nobuchule bokusebenzisa.