I-Polycarboxylate water reducer (PCE) ku-samente mortar

Isinciphisi samanzi se-Polycarboxylate(I-PCE)iyisizukulwane esisha somshini wokunciphisa amanzi osebenza kahle kakhulu onesicelo esikhulu kakhulu kanye nokusebenza okuhle kakhulu ezintweni zesimanje ezisekelwe kusimende. Isetshenziswa kabanzi kukhonkolo exutshwe kakade, kukhonkolo ozimele, ezintweni zokugaya, kukhonkolo wokulungisa kanye nakonkolonkolo osebenza kahle kakhulu.

1. Indlela yokwenza

I-Polycarboxylate water reducer uhlobo lwe-surfactant enama-molecule amaningi ebonakala ngamaketanga aseceleni e-polyether kanye namaketanga amakhulu e-carboxylic acid. Amakhono ayo okunciphisa nokuhlakaza amanzi avela kakhulu ezicini ezimbili:

1.1. Ukuxoshwa ngogesi

Uchungechunge oluyinhloko lwe-molecule ye-Polycarboxylate water reducer luqukethe inani elikhulu lamaqembu e-carboxyl (-COOH), ahlanganiswa endaweni ene-alkaline ukuze akhe ama-carboxylate radicals (-COO⁻), afakwe ebusweni bezinhlayiya zesimende, okwenza izinhlayiya zithwale ishaja efanayo engemihle, ngaleyo ndlela zixoshane futhi zikhuthaze ukuhlakazeka kwezinhlayiya zesimende.

1.2. Umphumela wokuvimbela we-Steric

Amaketanga aseceleni e-polyether afana namaqembu e-polyoxyethylene (PEO) avimbela izinhlayiya zesimende ukuthi zingaphinde zihlangane ngenxa yokuphazamiseka kwe-steric, ngaleyo ndlela kuthuthukiswe ukuqina kokuhlakazeka. Lesi sici singcono kakhulu kunezinciphisi zamanzi zendabuko ze-naphthalene kanye ne-aliphatic.

2. Indima eyinhloko ku-samente mortar

2.1. Kuthuthukisa kakhulu ukugeleza kwamanzi

Uma kugcinwa isilinganiso samanzi nosimende singashintshi, i-PCE ingathuthukisa kakhulu ukugeleza kosimende, okwenza kube lula ukwakha nokusabalala ngokulinganayo, ikakhulukazi okufanelekela izinto zosimende ezizilinganisayo kanye nezinto zokufaka i-grouting.

2.2. Kuncishiswe kakhulu ukusetshenziswa kwamanzi

I-PCE inganciphisa amanzi axubayo cishe ngo-20%-35% ngaphandle kokuthinta ukugeleza, ngaleyo ndlela ithuthukise ubuningi namandla e-mortar futhi ithuthukise ukuqina.

2.3. Thuthukisa ukugcinwa kwamanzi kanye nokusebenza kokwakhiwa

Ngokuhlakaza ngokulinganayo izinhlayiya zesimende, i-PCE inganciphisa ukuvuza kwamanzi kanye nokuhlukaniswa, okwenza udaka luzinze kakhudlwana, okusiza ekugcinweni nasekuthuthukisweni kwamandla okulandelayo.

2.4. Khuthaza ukusabela kokumanziswa kwesimende

Ukunciphisa ukuhlangana kwezinhlayiya zesimende nokuzivumela ukuthi zithintane ngokugcwele namanzi kuzosiza ukufana kokusabela komswakama kanye nokukhula kwamandla okuqala kwesimende.

2.5. Thuthukisa izakhiwo zemishini

Ngenxa yesilinganiso sayo sokunciphisa amanzi esiphezulu kanye nesakhiwo sayo esincane, udaka lukasimende oluhlanganiswe ne-PCE lunamandla aphezulu okucindezela nokuguquguquka, ikakhulukazi kudaka olunamandla aphezulu.

3. Izinzuzo zokusebenza

Ukunciphisa amanzi okusebenza kahle kakhulu: Uma kuqhathaniswa nezinciphisi zamanzi zendabuko ezisekelwe ku-naphthalene kanye ne-lignin, i-PCE inezinga eliphezulu lokunciphisa amanzi kanye nokusebenza okuzinzile.

Isilinganiso esiphansi kanye nokusebenza okuphezulu: Ngokuvamile isilinganiso singu-0.1%-0.3% kuphela wezinto ezisimende, okungafeza umphumela omuhle kakhulu wokunciphisa amanzi.

Ukuhambisana okuhle: Kungahlanganiswa nezinhlelo ezahlukene zesimende kanye nezingxube, futhi kuyakwazi ukuzivumelanisa nezimo kabanzi.

Ukuvikelwa kwemvelo kanye nokungabi nokungcola: I-Polycarboxylate water reducer iwumkhiqizo oluhlaza futhi onobungani nemvelo ohlangabezana nezidingo zentuthuko yesimanje eqhubekayo ekwakheni.

4. Ukusebenza kahle kwezicelo ezisebenzayo

4.1. Udaka oluzilinganisayo

I-PCE yenza ukuthi udoti ube nokugeleza okuhle kanye nekhono lokuzibamba, elifanelekela ukulinganisa umhlabathi, ukuvala i-caulking kanye nokulungisa.

4.2. I-adhesive yethayela, udaka oluyingqimba encane

Thuthukisa umuzwa wokwakha, thuthukisa ukunamathela kwesendlalelo sesisekelo, futhi unciphise ukuqhekeka.

4.3. Lungisa izinto zokubopha udoti kanye ne-grouting

Nciphisa isilinganiso samanzi nosimende, thuthukisa ubuningi kanye nokusebenza kwamandla okuqala, okulungele amaphrojekthi anamandla aphezulu kanye nezidingo zokugeleza okuphezulu.

5. Izinyathelo zokuqapha zokusetshenziswa

5.1. Ukulawula umthamo

Umthamo oweqile ungabangela ukugeleza ngokweqile kwe-mortar, ukuvuza kwamanzi noma isikhathi eside sokusetha, okudingeka silungiswe ngokusekelwe esivivinyweni.

5.2. Ukuhlanganiswa nezinye izingxube

I-PCE idinga ukuhlolwa ukuthi iyahambisana yini nama-retarder, ama-air entraining agents, njll. ukuze kugwenywe ukungqubuzana kokusebenza.

5.3. Ithonya lezinto zokusetshenziswa

Uhlobo lwesimende, i-modulus yokucwebezela kwesihlabathi, izinga lokushisa nezinye izinto zinethonya elikhulu emphumeleni we-PCE, futhi isilinganiso sokuxuba sidinga ukulungiswa ngokwezimo zangempela endaweni.

5.4. Ukugcinwa kanye nokuthuthwa

I-PCE ewuketshezi idinga ukuvikela iqhwa, ingangeni elangeni, futhi ivalwe ukuze igcinwe, isikhathi sokuphila seshelufu ngokuvamile siyizinyanga eziyi-6; imikhiqizo yempuphu idinga ukuvikela umswakama.

I-polycarboxylate water reducer idlala indima engenakuphindwa ku-samente mortarngokusebenza kwayo okuphezulu kokunciphisa amanzi, ukuhlakazeka okuhle kakhulu kanye nokugcinwa kwepulasitiki. Ngokuthuthuka okuqhubekayo kwezinto zokwakha eziluhlaza kanye nodaka olusebenza kahle kakhulu, ukwakheka kokwakheka kanye nobuchwepheshe bokusetshenziswa kwe-PCE nakho kuyathuthukiswa njalo. Ukusetshenziswa okunengqondo kwe-PCE akugcini nje ngokuthuthukisa kakhulu ukusebenza kodaka, kodwa futhi kusize ekufezeni imigomo emibili yokonga amandla kanye nokunciphisa ukukhishwa komoya kanye nokuthuthukisa ikhwalithi yokwakha.