Luluphi usetyenziso lwe-cellulose ethers kwikhonkrithi?

I-cellulose ethers yinxalenye ebalulekileyo yokwenziwa kwekhonkrithi yale mihla, inegalelo kwiipropati ezahlukeneyo kunye nokusebenza okubalulekileyo kwizicelo zokwakha. Ukusuka ekomelezeni ukusebenza ukuya ekuphuculeni ukuqina, i-cellulose ethers idlala indima ebalulekileyo ekwandiseni ukusebenza kwekhonkrithi.

Ukugcinwa kwamanzi: I-ethers ye-cellulose isebenza njengeejenti zokugcina amanzi kwimixube yekhonkrithi. Bafunxa amanzi angaphezulu, bawathintele ukuba angabi ngumphunga ngokukhawuleza ngexesha lenkqubo yokunyanga. Le hydration ixesha elide iphakamisa amandla kunye nokuqina kwekhonkrithi, ukunciphisa umngcipheko wokuqhekeka kunye nokuqinisekisa ukufakwa kwe-hydration efanayo kuwo wonke umxube.

Ukuphuculwa kokuSebenza: Ngokulawula i-rheology ye-concrete mixes, i-cellulose ethers iphucula ukusebenza, okwenza izinto zibe lula ukuphatha kunye nokulawula ngexesha lokubeka kunye nokugqiba. Oku kusebenza okuphuculweyo kuququzelela ukuhlanganiswa okufanelekileyo kunye nokudibanisa, okukhokelela kwikhonkrithi efanayo kunye ne-voids embalwa kunye nokungafezeki.

Ukubambisana okuphuculweyo kunye nokuBambisana: I-ethers ye-cellulose igalelo ekudibaniseni kunye nokubambelela kwikhonkrithi, inceda ukuhlanganisa amacandelo ahlukeneyo omxube, kubandakanywa i-aggregates, i-samente kunye namanzi. Oku kukhuthaza ukudibanisa okungcono phakathi kwekhonkrithi kunye nezinto zokuqinisa, ezifana neentsimbi zetsimbi okanye iifayili, ukuphucula ukunyaniseka kwesakhiwo kunye nokusebenza kwekhonkrithi.

Ukwahlula okuncitshisiweyo kunye nokuphuma kwegazi : Ukwahlula kunye nokuphuma kwegazi ziingxaki eziqhelekileyo kwimixube yekhonkrithi, apho i-aggregates enzima ihlala khona, kwaye amanzi angaphezulu aphakama phezulu, okukhokelela ekuhanjisweni okungafaniyo kwezithako. I-cellulose ethers inceda ukukhusela ukuhlukana kunye nokuphuma kwegazi ngokuzinzisa umxube, ngaloo ndlela iqinisekisa ukuhambelana okufanayo kunye ne-homogeneity kuyo yonke ikhonkrithi.

Ixesha lokumisela eliLawulwayo: I-ethers ye-cellulose ingasetyenziselwa ukulawula ixesha lokumisela ikhonkrithi, ukuvumela uhlengahlengiso ukuhlangabezana neemfuno ezithile zeprojekthi. Ngokulibazisa okanye ukukhawuleza inkqubo yokumisela, i-cellulose ethers yenza iikontraka ukuba ziphucule iishedyuli zomsebenzi kwaye zilungelelanise iimeko ezahlukeneyo zokusingqongileyo ngaphandle kokunciphisa umgangatho okanye ukusebenza kwekhonkrithi.

UkuPhucuka okuPhuculweyo: Ikhonkrithi equlethe i-cellulose ethers ibonisa ukumpompa okuphuculweyo, okwenza kube lula ukuthuthwa kunye nokubeka kwiindawo ekunzima ukufikelela kuzo okanye kwiindawo eziphakamileyo. Lo mhlaba uluncedo kakhulu kwiiprojekthi zolwakhiwo olukhulu apho ukubekwa ngokufanelekileyo kwekhonkrithi kubalulekile kwimveliso nokhuseleko.

Ukumelana ne-Sagging kunye ne-Slump: I-ethers ye-cellulose inceda ukuthintela ukugoba kunye nokudilika kwi-concrete esanda kuxutywa, ukugcina ukumila kunye nokuzinza ngexesha lokuthutha, ukubekwa kunye nokunyanga. Oku kuxhathisa kwi-deformation kuqinisekisa ukuba ikhonkrithi igcina ifom ejoliswe kuyo kunye nengqibelelo yesakhiwo, naphantsi kobunzima bayo kunye nefuthe lomxhuzulane.

Ukuncitshiswa kwePermeability kunye nePorosity: Ngokuphucula ukudibanisa kunye nokuxutywa kweengxube zekhonkrithi, i-cellulose ethers inegalelo ekunciphiseni ukunyanzeliswa kunye ne-porosity kwikhonkrithi eqinile. Oku kwandisa ukuxhathisa kwayo ekungeneni kwamanzi, ukuhlaselwa kweekhemikhali, kunye nemijikelo ye-freeze-thaw, ngaloo ndlela yandisa ubomi benkonzo kunye nokuqina kwezakhiwo zekhonkrithi.

Ukuhambelana kunye neZongezo: I-cellulose ethers iyahambelana noluhlu olubanzi lwee-admixtures zekhemikhali kunye nezongezo ezisetyenziswa kwikhonkrithi, ezifana ne-air-entraining agents, i-superplasticizers, kunye ne-set-retarding agents. Oku kuhambelana kuvumela ukuqulunqwa kwemixube yekhonkrithi eyenziwe ngokwezifiso ezilungiselelwe iimfuno ezithile zokusebenza kunye neemeko zokusingqongileyo.

Ukuzinza kokusiNgqongileyo: I-ethers ye-cellulose ithathwe kwimithombo evuselelekayo, efana ne-pulp yeplanga okanye i-cotton, ezenza ukuba zibe zikhetho ezihambelana nokusingqongileyo kwii-synthetic additives kwi-concrete. Ukonakaliswa kwebhayoloji kunye netyhefu ephantsi ngakumbi inegalelo kwimisebenzi yokwakha ezinzileyo, ukulungelelaniswa nogxininiso olukhulayo lwezinto zokwakha eziluhlaza kunye nobuchwepheshe.

I-cellulose ethers idlala indima eninzi ekuphuculeni ukusebenza, ukusebenza, kunye nokuqina kwekhonkrithi. Ukusuka ekuphuculeni ugcino lwamanzi kunye nokusebenza ukuya ekucutheni ukungeneka kunye nempembelelo yokusingqongileyo, iipropathi eziguquguqukayo ze-cellulose ethers zizenza izongezo eziyimfuneko kwimiqulu yekhonkrithi yale mihla, inegalelo kukhuseleko, olusebenzayo ngakumbi, kunye neendlela zokwakha ezizinzileyo.