Iziphumo ze-HPMC kunye ne-CMC kwiNdlela yokuSebenza yeKhonkrithi

I-Hydroxypropyl methylcellulose (HPMC) kunye ne-carboxymethyl cellulose (CMC) zombini zi-ethers ze-cellulose ezisetyenziswa ngokuqhelekileyo njengezongezo kwiifom zekhonkrithi. Bakhonza iinjongo ezahlukeneyo kwaye banokuba nemiphumo ebalulekileyo ekusebenzeni kwekhonkrithi. Nazi iziphumo ze-HPMC kunye ne-CMC ekusebenzeni kwekhonkrithi:

1. Ugcino lwamanzi: Zombini i-HPMC kunye ne-CMC ziiarhente ezisebenzayo zokugcina amanzi. Baphucula ukusebenza kunye nokungaguquguquki kwekhonkrithi entsha ngokulibazisa ukuphuphuma kwamanzi ngexesha lokumisela kunye nokunyanga. Oku kugcinwa kwamanzi ixesha elide kunceda ekuqinisekiseni i-hydration eyaneleyo yeengqungquthela ze-samente, ukukhuthaza ukuphuhliswa kwamandla afanelekileyo kunye nokunciphisa umngcipheko wokuqhekeka kwe-shrinkage.
2. Ukusebenza: I-HPMC kunye ne-CMC zisebenza njenge-rheology modifiers, ziphucula ukusebenza kunye nokuhamba kwemixube yekhonkrithi. Baphucula ukubambisana kunye nokuthambisa komxube, okwenza kube lula ukubeka, ukudibanisa, nokugqiba. Oku kuphucula ukusebenza kuququzelela ukuxinwa okungcono kunye nokunciphisa amathuba okuba ne-voids okanye i-honeycombing kwikhonkrithi eqinile.
3. Ukubambelela: I-HPMC kunye ne-CMC ziphucula ukunamathela kwekhonkrithi kwii-substrates ezahlukeneyo, kubandakanywa i-aggregates, i-fibers yokuqinisa, kunye ne-formwork surfaces. Bakhulisa amandla ebhondi phakathi kwezixhobo zesamente kunye nee-aggregates, behlisa umngcipheko wokudityaniswa okanye ukudityaniswa. Oku kubambelela okwandisiweyo kunegalelo ekuqina okupheleleyo kunye nokunyaniseka kwesakhiwo sekhonkrithi.
4. Ukungena emoyeni: I-HPMC kunye ne-CMC inokusebenza njengeejenti zokungenisa umoya xa zisetyenziswe kwimixube yekhonkrithi. Banceda ukwazisa amaqamza amancinci kumxube, ophucula ukuxhathisa ukunyibilika komkhenkce kunye nokuqina ngokuvumela utshintsho lwevolumu olubangelwa kukuguquguquka kobushushu. Ukungena komoya okufanelekileyo kunokuthintela umonakalo ovela kwiqabaka kunye nokunyuka kwemozulu ebandayo.
5. Ixesha lokumisela: I-HPMC kunye ne-CMC inokuchaphazela ixesha lokumisela imixube yekhonkrithi. Ngokulibazisa ukusabela kwe-hydration yesamente, banokwandisa ixesha lokuqala kunye nelokugqibela lokumisela, ukubonelela ixesha elingakumbi lokubeka, ukudibanisa, kunye nokugqiba. Nangona kunjalo, idosi egqithisileyo okanye imixube ethile inokukhokelela kwixesha elide lokumisela, kufuna uhlengahlengiso olunononophelo ukuhlangabezana neemfuno zeprojekthi.
6. I-Crack Resistance: I-HPMC kunye ne-CMC zenza igalelo ekuxhathiseni ukuqhekeka kwekhonkrithi eqinisiweyo ngokomeleza ukudityaniswa kwayo, ukuqina, kunye nokuqina. Banceda ukunciphisa ukubunjwa kwe-shrinkage cracks kunye nokunciphisa ukusasazeka kweentanda ezikhoyo, ngokukodwa kwiindawo ezithintelweyo okanye ezixinzelelekileyo. Olu phuculo lokumelana nokuqhekeka kwandisa ukuqina kwexesha elide kunye nokusebenza kwezakhiwo eziphathekayo.
7. Ukuhambelana: I-HPMC kunye ne-CMC ziyahambelana noluhlu olubanzi lwe-concrete admixtures kunye nezongezelelo, ezivumela iinketho zokuqulunqa ezininzi. Zingasetyenziswa ngokubambisana nezinye ii-admixtures ezifana ne-superplasticizers, i-accelerators, i-retarders, kunye nezixhobo ezongezelelweyo ze-cementitious ukufezekisa iinjongo zokusebenza ezithile ngelixa ugcina ukuhambelana kunye nokuzinza ngokubanzi.

I-HPMC kunye ne-CMC zidlala indima ebalulekileyo ekwandiseni ukusebenza kwekhonkrithi ngokuphucula ukugcinwa kwamanzi, ukusebenza, ukubambelela, ukunyanzeliswa komoya, ixesha lokubeka, ukuchasana nokuqhekeka, kunye nokuhambelana. Iipropathi zabo eziguquguqukayo zibenza ukuba izongezo ezixabisekileyo zokuphucula imixube yekhonkrithi kunye nokufezekisa iimpawu zokusebenza ezinqwenelekayo kwizicelo ezahlukeneyo zokwakha.