Isamente yeSulphoaluminate

I-Sulfoaluminate Cement (SAC) luhlobo lwesamente olufumana ukuthandwa ngenxa yeempawu zayo ezizodwa kunye neenzuzo ngaphezu kwezinye iintlobo zesamente. I-SAC i-samente ye-hydraulic eyenziwa ngokudibanisa i-sulphoaluminate clinker, i-gypsum, kunye nexabiso elincinci le-calcium sulfate. Kweli nqaku, siza kuphonononga imvelaphi, iimpawu, iingenelo kunye nokusetyenziswa kwesamente ye-sulphoaluminate.

Imvelaphi yesamente yeSulphoaluminate yaqala ukuphuhliswa eChina ngeminyaka yoo-1970. Ekuqaleni yayisetyenziselwa izicelo ezikhethekileyo, ezifana nekhonkrithi yokumisa ngokukhawuleza kunye nodaka lokulungiswa. Kwiminyaka yakutshanje, i-SAC ifumene ukuthandwa njengenye indlela ezinzileyo kwisamente yasePortland.

Iimpawu I-samente ye-sulphoaluminate ineempawu ezininzi ezizodwa ezenza ukuba zahluke kwezinye iintlobo zesamente. Ezi mpawu ziquka:

1. Ukuseta ngokukhawuleza: I-SAC ibeka ngokukhawuleza, kunye nexesha lokumisela malunga nemizuzu eyi-15-20. Oku kuyenza ilungele usetyenziso apho ulungiselelo olukhawulezayo lufuneka, njengemozulu ebandayo okanye xa kufuneka ukulungiswa ngokukhawuleza.
2. Amandla aphezulu kwangethuba: I-SAC inamandla aphezulu aphezulu, inamandla acinezelayo ajikeleze i-30-40 MPa emva kosuku olunye lokunyanga. Oku kuyenza ilungele usetyenziso apho kufuneka amandla kwangethuba, njengakwikhonkrithi yeprecast okanye ukulungiswa.
3. I-carbon footprint ephantsi: I-SAC ine-carbon footprint ephantsi kune-samente yasePortland yendabuko, njengoko idinga ukushisa okuphantsi ngexesha lokuvelisa kwaye iqulethe i-clinker encinci.
4. Ukumelana ne-sulfate ephezulu: I-SAC inokumelana okuphezulu nokuhlaselwa kwe-sulfate, eyenza ifaneleke ukusetyenziswa kwiindawo ezine-sulfate ephezulu, njengeendawo zonxweme.

Izinto eziluncedo Sulphoaluminate samente inika iingenelo ezininzi ngaphezu kwezinye iintlobo zesamente, kuquka:

1. Ukunciphisa i-carbon footprint: I-SAC inomlinganiselo ophantsi wekhabhoni kune-samente yasePortland yendabuko, eyenza ibe yindlela ezinzileyo yokwakhiwa.
2. Ukusetha ngokukhawuleza: I-SAC ibeka ngokukhawuleza, enokugcina ixesha kunye nokunciphisa iindleko zokwakha.
3. Amandla aphezulu kwangethuba: I-SAC inamandla aphezulu aphezulu, anokunciphisa ixesha elifunekayo lokunyanga kunye nokwandisa imveliso.
4. Ukumelana ne-sulfate ephezulu: I-SAC inokumelana okuphezulu nokuhlaselwa kwe-sulfate, enokunyusa ukuqina kwezakhiwo zekhonkrithi kwiindawo ezinzima.

Isebenzisa iSamente yeSulfoaluminate isetyenziswa kwiintlobo ngeentlobo zezicelo, kubandakanya:

1. Ukuseta ngokukhawuleza ikhonkrithi: I-SAC isoloko isetyenziswa kwizicelo apho ulungiselelo olukhawulezayo lufuneka, njengemozulu ebandayo okanye ukulungiswa ngokukhawuleza.
2. Ikhonkrithi yangaphambili: I-SAC isoloko isetyenziselwa ukuveliswa kweemveliso zekhonkrithi zangaphambili, njengemibhobho yekhonkrithi, ii-slabs, kunye neepaneli.
3. Ukulungisa udaka: I-SAC isoloko isetyenziswa njengodaka lokulungiswa kwezakhiwo zekhonkrithi, njengoko ibeka ngokukhawuleza kwaye inamandla aphezulu aphezulu.
4. Ikhonkrithi yokuzimela: I-SAC ingasetyenziselwa ukuvelisa ikhonkrithi yokuzimela, efanelekileyo kwizicelo apho kufuneka indawo egudileyo, esemgangathweni.

Ukuqukumbela Isamente yeSulphoaluminate luhlobo olulodwa lwesamente olubonelela ngeenzuzo ezininzi ngaphezu kwesamente yasePortland. Inomgangatho ophantsi wekhabhoni, iseti ngokukhawuleza, inamandla aphezulu kwangethuba, kwaye iyamelana kakhulu nohlaselo lwesulfate. I-SAC isetyenziselwa usetyenziso oluhlukeneyo, kubandakanywa ikhonkrithi yokumisa ngokukhawuleza, ikhonkrithi ye-precast, i-mortar yokulungisa, kunye ne-self-leveling concrete. Njengoko uzinzo luba yingqwalasela ebaluleke ngakumbi kulwakhiwo, ukusetyenziswa kwe-SAC kunokwenzeka ukuba kunyuke ukuthandwa.