Ngaba ukuphakama kokugcinwa kwamanzi kwidaka lodaka, kungcono?

Ukugcinwa kwamanzi yipropathi ebalulekileyo yodaka lodaka njengoko luchaphazela ngokuthe ngqo ukusebenza kwalo, ixesha lokumisela, kunye namandla omatshini. Nangona kunjalo, ubudlelwane phakathi kokugcinwa kwamanzi kunye nokusebenza kodaka lwe-plaster alukho ngokuthe ngqo, kwaye akukho mpendulo ecacileyo yokuba ukugcinwa kwamanzi aphezulu, kungcono udaka lwe-plaster.

Ukugcinwa kwamanzi kubhekiselele kwisakhono sodaka lodaka ukugcina amanzi ngaphandle kokuphuma kwegazi okanye ukwahlula. Ngokubanzi, ugcino lwamanzi oluphezulu luthetha ukuba udaka lodaka lunokugcina amanzi amaninzi kwaye luhlala lusebenza ixesha elongeziweyo, elinokuba luncedo kwizicelo ezithile. Nangona kunjalo, ukugcinwa kwamanzi ngokugqithiseleyo kunokukhokelela kwiingxaki ezifana nokunciphisa, ukuqhekeka, kunye nokunciphisa amandla omatshini, okunokuthi kube nefuthe elibi ekusebenzeni kodaka lwe-plaster.

Xa kufikwa kugcino lwamanzi lwesamente yodaka, isixa esifanelekileyo sixhomekeke kwizinto ezahlukeneyo ezifana nodidi lwesamente, ubushushu obuthile kunye nokufuma, indlela yokuxuba, kunye nesiphumo esifunekayo. Umzekelo, kwiimeko ezishushu nezomileyo, ukugcinwa kwamanzi kwi-plaster mortar kufuneka kube phezulu ukukhusela ukomisa ngokugqithiseleyo, kanti kumaqondo obushushu abandayo, ukugcinwa kwamanzi okuphantsi kunokukhethwa ukukhawulezisa ixesha lokumisela.

Enye yeenzuzo eziphambili zokugcinwa kwamanzi aphezulu kwi-plaster mortar kukuba inokuphucula ukusebenza, okwenza kube lula ukusasazeka kunye nokugudisa phezu kwemiphezulu. Oku kunokuba luncedo kwizicelo apho kufunwa ukugudiswa kunye nokugqitywa, njengokutyabeka okuhombisa okanye ukulungiswa kweendonga ezonakalisiweyo okanye iisilingi. Ukugcinwa kwamanzi aphezulu kunokuphucula ibhondi phakathi kodaka lwe-plaster kunye ne-substrate, ukwandisa amandla ayo onke.

Nangona kunjalo, ukugcinwa kwamanzi ngokugqithisileyo kunokukhokelela kwiingxaki ezifana nokuqhekeka, ukucutha, kunye nokunciphisa amandla omatshini. Xa udaka lodaka lunamanzi amaninzi, lungathatha ixesha elide ukuseta kwaye lube lukhuni, nto leyo enokukhokelela ekuqhekekeni nasekucuthekeni. Ukongezelela, amanzi angaphezulu anokunciphisa ukudibanisa phakathi kwe-plaster mortar kunye ne-substrate, enokunciphisa amandla ayo onke kunye nokuqina.

Ukufezekisa ukugcinwa kwamanzi okufanelekileyo kwi-plaster mortar, izongezo ezahlukahlukeneyo zingasetyenziswa. Ngokomzekelo, ukongeza i-cellulose ethers, njenge-methyl cellulose okanye i-hydroxypropyl methylcellulose, inokuphucula ukugcinwa kwamanzi ngaphandle kokunciphisa amandla omatshini. Ezinye izongezo ezifana ne-air-entraining agents zingasetyenziselwa ukwandisa ukusebenza kunye nokunciphisa umngcipheko wokuqhekeka kunye nokunciphisa.

Isishwankathelo, ubudlelwane phakathi kokugcinwa kwamanzi kunye nokusebenza kodaka lwe-plaster luyinkimbinkimbi, kwaye akukho mpendulo elinganayo malunga nokuba ukugcinwa kwamanzi okuphezulu kungcono. Ukugcinwa kwamanzi okufanelekileyo kuxhomekeke kwizinto ezahlukeneyo, kwaye ibhalansi kufuneka ibethwe phakathi kokusebenza, ixesha lokumisela, kunye namandla omatshini. Ngokuqonda iipropati ze-plaster mortar kunye nokusebenzisa izongezo ezifanelekileyo, kunokwenzeka ukufezekisa ukugcinwa kwamanzi ngokufanelekileyo kwisicelo esinikezelweyo.