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

Isinciphisi samanzi sePolycarboxylate(PCE)sisizukulwana esitsha sesixhobo sokunciphisa amanzi esisebenza kakuhle kakhulu esisetyenziswa kakhulu kwaye sisebenza kakuhle kakhulu kwizixhobo zanamhlanje ezisekwe kwisamente. Sisetyenziswa kakhulu kwikhonkrithi exutyiweyo esele ilungisiwe, i-self-leveling mortar, izinto zokufaka i-grouting, i-repair mortar kunye nekhonkrithi esebenza kakhulu.

1. Indlela yokusebenza

I-Polycarboxylate water reducer luhlobo lwe-surfactant ene-molecular ephezulu ebonakaliswa zii-polyether side chains kunye nee-carboxylic acid main chains. Amandla ayo okunciphisa nokusabalalisa amanzi avela kwiinkalo ezimbini:

1.1. Ukugxothwa ngombane

Ikhonkco eliphambili lemolekyuli yokunciphisa amanzi yePolycarboxylate liqulathe inani elikhulu lamaqela e-carboxyl (-COOH), adityaniswe kwindawo ene-alkaline ukuze enze ii-carboxylate radicals (-COO⁻), ezifunxwa phezu kwamasuntswana esamente, nto leyo eyenza ukuba amasuntswana athwale itshaja efanayo engalunganga, ngaloo ndlela exoshana kwaye ekhuthaza ukusasazeka kwamasuntswana esamente.

1.2. Isiphumo sokuthintela i-Steric

Iintambo ezisecaleni zePolyether ezifana namaqela e-polyoxyethylene (PEO) zithintela amasuntswana esamente ukuba angaphinde ahlangane ngenxa yokuthintela i-steric, ngaloo ndlela ziphucula ukuqina kokusasazeka. Olu phawu lungcono kakhulu kune-naphthalene yendabuko kunye ne-aliphatic water reducers.

2. Indima ephambili kwisamente yesamente

2.1. Iphucula kakhulu ukutyibilika kwamanzi

Xa igcina umlinganiselo wamanzi nesamente ungatshintshi, i-PCE inokuphucula kakhulu ukutyibilika kwesamente, okwenza kube lula ukuyakha nokuyisasaza ngokulinganayo, ngakumbi ifaneleke kwisamente esizilungisa ngokwaso kunye nezinto zokugquma.

2.2. Kuncitshiswe kakhulu ukusetyenziswa kwamanzi

I-PCE inokunciphisa amanzi okuxuba malunga ne-20%-35% ngaphandle kokuchaphazela ukunyibilika, ngaloo ndlela iphucula uxinano kunye namandla e-mortar kwaye iphucule ukuqina.

2.3. Ukuphucula ukugcinwa kwamanzi kunye nokusebenza kolwakhiwo

Ngokusasaza ngokulinganayo amasuntswana esamente, i-PCE inokunciphisa ukuvuza kwamanzi kunye nokwahlukana kwawo, okwenza i-mortar izinze ngakumbi, nto leyo enceda ekugcinweni nasekuphuhlisweni kwamandla okulandelayo.

2.4. Khuthaza impendulo yokufunxwa kwesamente

Ukunciphisa ukuhlangana kweenxalenye zesamente nokuzivumela ukuba zinxibelelane ngokupheleleyo namanzi kuya kunceda ukufana kwendlela yokusabela komswakama kunye nokukhula kwamandla kwangoko kwesamente.

2.5. Phucula iipropati zoomatshini

Ngenxa yesantya sayo esiphezulu sokunciphisa amanzi kunye nolwakhiwo oluncinci, i-samente mortar exutywe ne-PCE inamandla aphezulu okuxinzelela kunye nokugoba, ingakumbi kwi-samente enamandla aphezulu.

3. Iingenelo zokusebenza

Ukunciphisa amanzi ngokufanelekileyo: Xa kuthelekiswa nezinciphisi zamanzi zemveli ezisekelwe kwi-naphthalene kunye ne-lignin, i-PCE inezinga eliphezulu lokunciphisa amanzi kunye nokusebenza okuzinzileyo.

Idosi ephantsi kunye nokusebenza okuphezulu: Ngokwesiqhelo idosi yi-0.1%-0.3% kuphela yezinto ezisebenzisa isamente, nto leyo enokwenza isiphumo esihle kakhulu sokunciphisa amanzi.

Ukuhambelana okuhle: Ingadityaniswa neenkqubo ezahlukeneyo zesamente kunye nomxube, kwaye iyakwazi ukuguquguquka ngokubanzi.

Ukukhuselwa kwendalo kunye nokungabikho kongcoliseko: I-Polycarboxylate water reducer yimveliso eluhlaza neyongamelayo kokusingqongileyo ehlangabezana neemfuno zophuhliso lwanamhlanje oluzinzileyo ekwakheni.

4. Ukusebenza kwizicelo ezisebenzayo

4.1. I-mortar ezenzela umlinganiselo

I-PCE yenza ukuba i-mortar ibe nokuchacha okuhle kunye nokukwazi ukuzibamba, nto leyo efanelekileyo xa kulungiswa umhlaba, i-caulking kunye nokulungiswa.

4.2. Isisincamathelisi sethayile, i-plaster mortar enomgangatho obhityileyo

Phucula indlela yokwakha, yongeza ukunamathelana komaleko wesiseko, kwaye unciphise ukuqhekeka.

4.3. Lungisa i-mortar kunye nezinto zokufaka i-grouting

Nciphisa umlinganiselo wamanzi nesamente, phucula uxinano kunye nokusebenza kwamandla okuqala, kulungele iiprojekthi ezinamandla aphezulu kunye neemfuno zokuhamba kwamanzi aphezulu.

5. Amanyathelo okusebenzisa

5.1. Ulawulo lwedosi

Umthamo ogqithisileyo unokubangela ukunyibilika kwesamente okugqithisileyo, ukuvuza kwamanzi okanye ixesha elide lokuseta, ekufuneka lilungiswe ngokusekelwe kuvavanyo.

5.2. Ukudibanisa nezinye izinto ezixutyiweyo

I-PCE kufuneka ivavanywe ukuba iyahambelana na nee-retarders, ii-air entraining agents, njl.njl. ukuze kuthintelwe ukungqubana kokusebenza.

5.3. Impembelelo yezinto ezisetyenziswa ngokwemvelo

Uhlobo lwesamente, imodulus yokucoleka kwesanti, ubushushu kunye nezinye izinto zinefuthe elikhulu kwisiphumo se-PCE, kwaye umlinganiselo womxube kufuneka uphuculwe ngokweemeko zokwenyani kwindawo leyo.

5.4. Ukugcinwa kunye nokuthuthwa

I-PCE engamanzi kufuneka inganyangeki yingqele, ingangeni elangeni, kwaye ivalwe ukuze igcinwe, ixesha layo lihlala iinyanga ezi-6; iimveliso zomgubo kufuneka zinganyangeki kufuma.

I-Polycarboxylate water reducer idlala indima engenakutshintshwa kwi-samente mortarngokusebenza kwayo okuphezulu kokunciphisa amanzi, ukusasazeka okugqwesileyo kunye nokugcinwa kweplastiki. Ngophuhliso oluqhubekayo lwezixhobo zokwakha eziluhlaza kunye nodaka olusebenza kakuhle, uyilo lokwenziwa kunye netekhnoloji yokusebenzisa i-PCE nayo iyaphuculwa rhoqo. Ukusetyenziswa okunengqiqo kwe-PCE akunakuphucula kuphela ukusebenza kodaka, kodwa kunokunceda ukufezekisa iinjongo ezimbini zokugcina amandla kunye nokunciphisa ukukhutshwa komoya kunye nokuphucula umgangatho wokwakha.