Iziphumo ze-HPMC kunye ne-CMC ekusebenzeni kweKhonkrithi

IHydroxypropyl methylcellulose (HPMC) kunye necarboxymethyl cellulose (CMC) zombini zii-cellulose ethers ezisetyenziswa kakhulu njengezongezo kwi-concrete formulations. Zisebenza ngeenjongo ezahlukeneyo kwaye zinokuba nefuthe elikhulu ekusebenzeni kwe-concrete. Nazi iziphumo ze-HPMC kunye ne-CMC ekusebenzeni kwe-concrete:

1. Ukugcinwa Kwamanzi: Zombini i-HPMC kunye ne-CMC zizixhobo ezisebenzayo zokugcina amanzi. Ziphucula ukusebenza kakuhle kunye nokuhambelana kwekhonkrithi entsha ngokulibazisa ukufuma kwamanzi ngexesha lokuseta kunye nokunyanga. Oku kugcinwa kwamanzi ixesha elide kunceda ukuqinisekisa ukufuma okwaneleyo kwamasuntswana esamente, kukhuthaza uphuhliso oluphezulu lwamandla kunye nokunciphisa umngcipheko wokuqhekeka.
2. Ubuchule bokusebenza: I-HPMC kunye ne-CMC zisebenza njengezilungisi ze-rheology, ziphucula ukusebenza kakuhle kunye nokuhamba kakuhle kwemixholo yekhonkrithi. Ziphucula ukuhambelana kunye nokuthamba komxube, zenza kube lula ukubeka, ukuhlanganisa, kunye nokugqiba. Oku buchule bokusebenza obuphuculweyo kwenza kube lula ukuxinana ngcono kwaye kunciphisa amathuba okuba kubekho imingxuma okanye ukubola kwekhonkrithi kwikhonkrithi eqinileyo.
3. Ukuncamathelisa: I-HPMC kunye ne-CMC ziphucula ukunamathela kwekhonkrithi kwiindawo ezahlukeneyo, kuquka ii-aggregates, ii-fibre zokuqinisa, kunye neendawo ze-formwork. Ziyandisa amandla okubopha phakathi kwezinto eziqinisa isamente kunye nee-aggregates, zinciphisa umngcipheko wokuqhekeka okanye ukwahlukana. Oku kunamathela okwandileyo kunceda ekuqineni ngokubanzi kunye nokuqina kwesakhiwo sekhonkrithi.
4. Ukungena komoya: I-HPMC kunye ne-CMC zinokusebenza njengee-arhente zokungenisa umoya xa zisetyenziswa kwimixube yekhonkrithi. Zinceda ekungeniseni amaqamza amancinci omoya kumxube, nto leyo ephucula ukumelana nokunyibilika komkhenkce kunye nokuqina ngokwamkela utshintsho lomthamo olubangelwa kukutshintshatshintsha kobushushu. Ukungena komoya ngokufanelekileyo kunokuthintela umonakalo ovela kwiqhwa kunye nokukhula kwemozulu ebandayo.
5. Ixesha Lokuseta: I-HPMC kunye ne-CMC zinokuchaphazela ixesha lokuseta imixube yekhonkrithi. Ngokulibazisa ukusabela kokufuma kwesamente, zinokwandisa amaxesha okuqala nawokugqibela okuseta, zinike ixesha elingakumbi lokubeka, ukuhlanganisa, kunye nokugqiba. Nangona kunjalo, idosi egqithisileyo okanye iifomyula ezithile zinokukhokelela kwixesha elide lokuseta, zifuna ukulungiswa ngononophelo ukuze kuhlangatyezwane neemfuno zeprojekthi.
6. Ukumelana neeCrack: I-HPMC kunye ne-CMC zinegalelo ekumelaneni neeCrack kwikhonkrithi eqinileyo ngokuphucula ukuhambelana kwayo, ukuqina kwayo, kunye nokuqina kwayo. Zinceda ekunciphiseni ukwakheka kweeCrack ezinciphayo kwaye zinciphise ukwanda kweeCrack ezikhoyo, ngakumbi kwiindawo ezithintelweyo okanye ezinoxinzelelo olukhulu. Oku kumelana neeCrack okuphuculweyo kuphucula ukuqina kwexesha elide kunye nokusebenza kwezakhiwo zekhonkrithi.
7. Ukuhambelana: I-HPMC kunye ne-CMC ziyahambelana noluhlu olubanzi lwezixube zekhonkrithi kunye nezongezo, nto leyo evumela iindlela ezahlukeneyo zokwenziwa. Zingasetyenziswa kunye nezinye izixube ezifana nee-superplasticizers, ii-accelerators, ii-retarders, kunye nezixhobo ezongezelelweyo ze-cementitious ukufezekisa iinjongo ezithile zokusebenza ngelixa zigcina ukuhambelana kunye nozinzo ngokubanzi.

I-HPMC kunye ne-CMC zidlala indima ebalulekileyo ekuphuculeni ukusebenza kwekhonkrithi ngokuphucula ukugcinwa kwamanzi, ukusebenza kakuhle, ukunamathela, ukungena komoya, ixesha lokuseta, ukumelana nokuqhekeka, kunye nokuhambelana. Iimpawu zazo eziguquguqukayo zenza zibe zezona zongezo zixabisekileyo zokuphucula umxube wekhonkrithi kunye nokufezekisa iimpawu zokusebenza ezinqwenelekayo kwizicelo ezahlukeneyo zokwakha.