Uphuculo lwesiphumo se-hydroxypropyl methylcellulose kugcino lwamanzi lodaka lwesakhiwo

1. Imfuneko yokugcinwa kwamanzi e-hydroxypropyl methylcellulose

Ukugcinwa kwamanzi eludaka kubhekiselele kubuchule bodaka ukugcina amanzi. Udaka olunokugcinwa kakubi kwamanzi luthanda ukopha kunye nokwahlula ngexesha lokuthuthwa kunye nokugcinwa, oko kukuthi, amanzi adada ngaphezulu, kunye nesanti kunye nesamente ishona ngaphantsi. Kufuneka ihlaziywe kwakhona ngaphambi kokusetyenziswa. Zonke iintlobo zeziseko ezifuna udaka ekwakhiweni zinokufunxa okuthile kwamanzi. Ukuba ukugcinwa kwamanzi omdaka kubi, i-mortar edibeneyo edibeneyo iya kuxutywa ngokukhawuleza ukuba i-mortar edibeneyo idibene nebhloko okanye isiseko ngexesha lokusetyenziswa kodaka. Kwangaxeshanye, umphezulu wodaka uphuphuma amanzi emoyeni, nto leyo ebangela ukufuma okunganelanga eludaka ngenxa yokuphelelwa ngamanzi emzimbeni, nto leyo echaphazela ukuhanjiswa kwesamente ngakumbi, kwaye kwangaxeshanye kuchaphazela uphuhliso oluqhelekileyo lwamandla odaka. , okubangela amandla, ngakumbi ujongano phakathi kodaka oluqinileyo kunye nomgangatho wesiseko. iba ngaphantsi, ibangela ukuba udaka luqhekeke kwaye liwe. Ngodaka olunokugcinwa kakuhle kwamanzi, i-cement hydration yanele ngokwaneleyo, amandla anokuphuhliswa ngokuqhelekileyo, kwaye inokubophelela ngakumbi kwisiseko sesiseko.

2. Iindlela zemveli zokugcina amanzi

Isisombululo sendabuko kukunkcenkceshela isiseko, kodwa akunakwenzeka ukuqinisekisa ukuba isiseko sinomanzi ngokulinganayo. Injongo efanelekileyo ye-hydration ye-cement mortar kwisiseko kukuba: imveliso ye-cement hydration ingena kwisiseko kunye nenkqubo yesiseko esithatha amanzi, senze "uqhagamshelwano oluphambili" olusebenzayo kunye nesiseko, ukuze kufezekiswe amandla afunekayo ebhondi. Ukunkcenkceshela ngokuthe ngqo kumphezulu wesiseko kuya kubangela ukusasazwa okunzulu ekufunxeni kwamanzi kwisiseko ngenxa yokungafani kobushushu, ixesha lokunkcenkceshela, kunye nokufana kwamanzi. Isiseko sinokufunxa okuncinci kwamanzi kwaye siya kuqhubeka nokufunxa amanzi kumdaka. Ngaphambi kokuba i-cement hydration iqhube, amanzi axutywe, achaphazela ukungena kwe-cement hydration kunye nemveliso ye-hydration kwi-matrix; isiseko sinokufunxa okukhulu kwamanzi, kwaye amanzi kumdaka ageleza ukuya kwisiseko. Isantya semfuduko esiphakathi siyacotha, kwaye kwakhiwe umaleko otyebileyo wamanzi phakathi kodaka kunye ne-matrix, ekwachaphazela amandla ebhondi. Ngoko ke, ukusebenzisa indlela yokunkcenkceshela isiseko esiqhelekileyo akuyi kuphumelela kuphela ukusombulula ngokufanelekileyo ingxaki yokutshatyalaliswa kwamanzi aphezulu kwisiseko sodonga, kodwa kuya kuchaphazela amandla okubambisana phakathi kodaka kunye nesiseko, okubangelwa ukugoba kunye nokuqhekeka.

3. Indima ye-hydroxypropyl methylcellulose ekugcineni amanzi

Ukugcinwa kwamanzi kwi-hydroxypropyl methylcellulose kuneenzuzo ezininzi:

(1). Ukusebenza okugqwesileyo kokugcinwa kwamanzi kwenza ukuba udaka luvuleke ixesha elide, kwaye luneenzuzo zokwakhiwa kwendawo enkulu, ubomi benkonzo ende emgqomeni, kunye nokuxuba ibhetshi kunye nokusetyenziswa kwebhetshi.

(2). Ukusebenza kakuhle kokugcinwa kwamanzi kwenza i-samente kwi-mortar i-hydrated ngokupheleleyo, iphucula ngokufanelekileyo ukusebenza kwe-bonding yodaka.

(3). Udaka lunomsebenzi ogqwesileyo wokugcinwa kwamanzi, okwenza ukuba udaka lungabi lula ukuhlukana kunye nokopha, kwaye luphucula ukusebenza kunye nokwakhiwa kodaka.