Izinto Zokunciphisa Amanzi Kwikhonkrithi: Uphononongo Olupheleleyo

Isishwankathelo

Izinto Zokunciphisa Amanzi(ii-WRA) zidlala indima ebalulekileyo kubuchwepheshe bekhonkrithi yanamhlanje, nto leyo evumela ukuba kuphuculwe ukusebenza, amandla, kunye nokuqina ngelixa kugcinwa umlinganiselo ophantsi wamanzi ukuya kwisamente. Eli phepha lihlola iintlobo, iindlela, iingenelo, kunye nemingeni yee-WRA, imiphumo yazo kwiimpawu zekhonkrithi, kunye neendlela zazo zexesha elizayo kulwakhiwo oluzinzileyo.

1. Intshayelelo

1.1 Inkcazo yeeArhente zokunciphisa amanzi

Iiarhente zokunciphisa amanzi (ii-WRA) ziikhemikhali ezixutywayo ezinciphisa ubungakanani bamanzi afunekayo ukuze kufezekiswe ukusebenza okunikiweyo kwikhonkrithi. Ngokuphucula ukusasazeka kwesamente kunye nokunciphisa uxinzelelo lomphezulu, ii-WRA zonyusa amandla, ukuqina, kunye nokusebenza kakuhle kokubekwa.

1.2 Ukubaluleka kwee-WRA kwiTekhnoloji yeConcrete

Ikhonkrithi sesona sixhobo sokwakha sisetyenziswa kakhulu, kwaye ukuphucula iimpawu zayo kubalulekile ekusebenzeni kakuhle kweendleko, ukuzinza, kunye nokusebenza ixesha elide. Ii-WRA zivumela ikhonkrithi ukuba isebenze kakuhle ngaphandle kokunyusa umthamo wamanzi, ngaloo ndlela zithintela ukunciphisa amandla kunye nemiba enxulumene nokuncipha.

1.3 Uphuhliso Lwembali

Ukusetyenziswa kwee-WRA kwaqala ekuqaleni kwenkulungwane yama-20 ngokungeniswa kwee-lignosulfonates. Kwiminyaka emininzi edlulileyo, inkqubela phambili ikhokelele ekuphuhlisweni kwezinto zokunciphisa amanzi ezisebenzisa umbane ophezulu (ii-superplasticizers) ezatshintsha iteknoloji yekhonkrithi.

1.4 Iinjongo zolu phononongo

• Ukwahlulahlula nokuchaza ii-WRA ezahlukeneyo.

• Ukuchaza iindlela zabo zokusebenza.

• Ukugxininisa iingenelo kunye nemingeni enxulumene nee-WRA.

• Ukuhlalutya impembelelo yazo ekusebenzeni okubonakalayo.

• Ukuhlola iindlela zekamva kwitekhnoloji ye-WRA.

2. Iintlobo zeearhente zokunciphisa amanzi

Ii-WRA zihlulwe ngokwendlela ezisebenza ngayo kunye nokwakheka kweekhemikhali.

2.1 Izinto Eziqhelekileyo Zokunciphisa Amanzi (Iiplastiki)

Ezi zinciphisa umthamo wamanzi nge-5–10% kwaye ziphucula ukusebenza kakuhle. Zisetyenziswa kakhulu kulwakhiwo ngokubanzi.
Imizekelo: IiLignosulfonates, ii-hydroxycarboxylic acids.

2.2 Izinto Zokunciphisa Amanzi Eziphezulu (iiSuperplasticizers)

Ezi zinokunciphisa umthamo wamanzi ukuya kuthi ga kwi-40%, nto leyo evumela ukuba kubekho ikhonkrithi enamandla aphezulu nekwaziyo ukuziqinisa.
Imizekelo: Ii-ether zePolycarboxylate (PCE), i-sulfonated melamine formaldehyde, i-sulfonated naphthalene formaldehyde.

2.3 Izinciphisi zamanzi ezisebenza kakuhle kakhulu

Ezi WRAs ziphambili zenzelwe ukusetyenziswa okukhethekileyo njengekhonkrithi esebenza kakhulu (UHPC) kunye nekhonkrithi eprintiweyo nge-3D.

3. Indlela Yokusebenza

Ii-WRA zisebenza ngeendlela ezahlukeneyo ukuphucula ukuhamba kwamanzi kunye nokufuma kwesamente.

3.1 Indlela yokuSasaza

Amasuntswana esamente atsala iimolekyuli zamanzi ngokwendalo aze ahlangane. Ii-WRA ziyasasaza la masuntswana, nto leyo evumela ukufuma okungcono kwesamente kunye nokunciphisa imfuno yamanzi.

3.2 Ukugxothwa kweTshaja yomphezulu

Uninzi lwee-WRA zizisa iitshaja ezimbi kumasuntswana esamente, nto leyo ebangela ukugxojwa kunye nokuthintela ukuxinana, ngaloo ndlela kuphucula ukusebenza kakuhle.

3.3 Isiphumo sokuThintela okuNciphisa iSteric

Ii-Superplasticizers, ingakumbi ezo zisekelwe kwi-PCE, zenza umaleko okhuselayo ojikeleze amasuntswana esamente, nto leyo ewathintela ukuba angasondeli kakhulu kwaye agcine ukunyibilika ixesha elide.

3.4 Ukuphucula Ukwanda Kokufuma Kwamanzi

Ngokunciphisa imfuno yamanzi, ii-WRA zikhuthaza inkqubo yokufunxa amanzi esebenza kakuhle, nto leyo ekhokelela kwi-matrix eqinileyo neqinileyo yekhonkrithi.

4. Iingenelo kunye nokusetyenziswa kwee-WRA

4.1 Ukuphuculwa Kokusebenza

Ii-WRA zivumela ukufakwa lula, zinciphisa iimfuno zabasebenzi kunye namandla.

4.2 Amandla Aphuculweyo

Umlinganiselo ophantsi wamanzi nesamente uphumela ekuphuculeni amandla okuxinzelela nokutsalwa.

4.3 Ukuncipha kokuncipha kunye nokuqhekeka

Amanzi agqithisileyo kwikhonkrithi akhokelela ekuncipheni okubangelwa kukufuma, nto leyo ii-WRA ezinceda ekunciphiseni.

4.4 Ukuqina Okunyukileyo

Ngokunciphisa ukungena kwamanzi, ii-WRA ziphucula ukuxhathisa imijikelo yokuqandisa, ukuhlaselwa ngamakhemikhali, kunye nokuvezwa kwe-sulfate.

4.5 Usetyenziso kwiintlobo ezahlukeneyo zekhonkrithi

• Ikhonkrithi eLungele ukuxuba: Iphucula ukusebenza kakuhle kwezothutho kunye nokubekwa kwazo.

• Ikhonkrithi esele yenziwe: Iphucula ukuzaliswa kwesikhunta kunye nokwanda kwamandla.

• Ikhonkrithi Ezidibanisayo (SCC): Ivumela ukuhambahamba ngaphandle kokwahlulwahlulwa.

• Ikhonkrithi eSebenza ngokuPhezulu (HPC): Yomeleza ukuqina kwayo kunye nomthamo wayo wokuthwala umthwalo.

5. Impembelelo kwiZakhiwo zeKhonkrithi

5.1 Iipropati zekhonkrithi ezintsha

5.1.1 Ubuchule bokusebenza kunye nokungaqhubi kakuhle

Isiphumo esiphambili se-WRAs sikwixabiso lokuwa, elilinganisa ukuhamba kwamanzi kwekhonkrithi.

5.1.2 Umxholo womoya

Ii-WRA zinokuchaphazela umoya ongaphakathi, zifuna ulawulo olufanelekileyo lwedosi ukuze kuthintelwe ukunciphisa amandla.

5.1.3 Ixesha Lokubeka

Ii-Superplasticizers zinokulibazisa ixesha lokubeka izinto, nto leyo eluncedo xa kushushu kodwa ifuna ukujongwa ukuze kuthintelwe ukulibaziseka okugqithisileyo.

5.2 Iipropati zekhonkrithi eziqinileyo

5.2.1 Uphuhliso lwaMandla

Umlinganiselo ophantsi wamanzi nesamente ubangela ukuba amandla aphezulu kwangoko nangexesha elide.

5.2.2 Uphuculo Lokuqina

Ukuncipha kokungena kwamanzi kuphucula ukumelana nokungena kwamanzi kunye nokungena kwekloride.

5.2.3 Ukuncipha kunye nokuqhekeka

Ii-WRA zinceda ekulawuleni ukuncitshiswa kwamanzi ngokunciphisa ukulahleka kwamanzi okungeyomfuneko.

6. Ukuhambelana nezinye izinto ezidityanisiweyo

6.1 Ukusebenzisana nabaRetarders kunye nabaAccelerators

Ii-WRA zinokudityaniswa nee-retarders ukuze zisebenze ixesha elide okanye nee-accelerators ukuze zilungelelaniswe ngokukhawuleza.

6.2 Impembelelo kwiiarhente zoQeqesho loMoya

Ii-WRA ezigqithisileyo zinokunciphisa umoya, nto leyo echaphazela ukumelana nokuqandusela komkhenkce.

6.3 Ukuhambelana nezinto ezongezelelweyo zesamente (ii-SCM)

Ii-WRA ziphucula ukusasazeka kothuthu lweempukane, umsi we-silica, kunye nekhonkrithi esekwe kwi-slag.

7. Izinto eziqwalaselwayo kwiNdalo nakwizoqoqosho

7.1 Iinkalo zozinzo

• Ii-WRA zinegalelo ekwakheni ngendlela eluhlaza ngokunciphisa ukusetyenziswa kwesamente.

• Ukusetyenziswa kwamanzi kancinci kukhuthaza imizamo yokulondoloza.

7.2 Ukonga iindleko

Nangona ii-WRA zongeza kwiindleko zezinto zokwakha, zinciphisa iindleko zabasebenzi, zokugcina izinto kunye nokulungisa.

7.3 Ukunciphisa iNyathelo yeKhabhoni

Umthamo wesamente ophantsi uthetha ukuba kunciphisa ukukhutshwa kweCO₂.

8. Izifundo zeTyala kunye neZicelo eziSebenzayo

8.1 Izakhiwo Eziphakamileyo

Ii-WRA zonyusa ukufuthwa kwamanzi kunye namandla kwizakhiwo ezithe nkqo.

8.2 Iiprojekthi zeZiseko zoPhuhliso

Ukuqina okuphuculweyo kunceda iibhulorho, iitonela kunye neendlela ezinkulu.

Ukuprintwa kwekhonkrithi ye-3D 8.3

Ii-WRA zesizukulwana esitsha zivumela ulawulo oluchanekileyo malunga nokuprintwa kunye nokuseta.

9. Imingeni kunye nophuhliso lwexesha elizayo

9.1 Imida yee-WRA zangoku

• Ukuthatha idosi egqithisileyo kunokubangela ukwahlulwahlulwa.

• Ezinye ii-WRA zisebenzisana ngendlela engalindelekanga neentlobo ezithile zesamente.

9.2 Uphuhliso kwi-WRAs ezisekelwe kwiPolymer

Ii-WRA ezisekelwe kwi-PCE zibonelela ngokusebenza okuphezulu kunye neziphumo ebezingalindelekanga ezincinci.

9.3 Iindlela Zekamva kwiTekhnoloji yoXuba lweConcrete

• Uphuhliso lwee-WRA ezisekelwe kwibhayoloji.

• Ukudibanisa okuhlakaniphileyo okunokulungiswa kwepropathi ngexesha langempela.

Izinto Zokunciphisa Amanzizidlala indima ebalulekileyo kubuchwepheshe bekhonkrithi yanamhlanje, zibonelela ngamandla aphuculweyo, ukuqina, kunye nokuzinza. Uphando lwexesha elizayo lufanele lugxile kwi-WRAs ezinobuhlobo nokusingqongileyo kunye nokuphuculwa kokusebenza kweenkqubo ezahlukeneyo zekhonkrithi.