Umhla wokuPoswa:19 Feb,2024
Iimpawu zendlela yokwakha:
(1) Xa uyila umlinganiselo womxube wekhonkrithi, ukusetyenziswa okudibeneyo kwe-agent ephezulu yokunciphisa amanzi kunye ne-air-entraining agent isombulula iimfuno zokuqina kwezakhiwo eziphathekayo kwiindawo ezibandayo kakhulu;
(2) Ngokubandakanya amacandelo okugcina i-slump kwi-high-performance-reduction admixtures, impembelelo yokushisa okuphezulu ehlobo ekusebenzeni kwekhonkrithi ixazululwa;
(3) Ngokuhlalutya kovavanyo, impembelelo yomxholo wodaka kwikhonkrithi ekusebenzeni kunye namandla oxinzelelo lwekhonkrithi;
(4) Ngokudibanisa isanti erhabaxa kunye nesanti ecolekileyo kumlinganiselo othile, into yokuba uhlobo olunye lwesanti yekhonkrithi ayinako ukuhlangabezana nokusebenza kwekhonkrithi iyasonjululwa;
(5) Izinto ezichaphazela ukusebenza kwekhonkrithi zichazwe, kwaye impembelelo yezinto ezimbi ekusebenzeni kwekhonkrithi iyagwenywa ngexesha lokwakhiwa kwekhonkrithi.
Umgaqo osebenzayo we-arhente yokunciphisa amanzi esebenza kakhulu:
(1) Ukusabalalisa: I-agent yokunciphisa amanzi i-adsorbed i-directionally adsorbed phezu kwendawo yeengqungquthela zesamente, ibenza bathwale intlawulo efanayo ukwenza i-electrostatic repulsion, ekhuthaza amaqhekeza e-samente ukuba ahlakazeke omnye komnye, atshabalalise isakhiwo se-flocculation eyenziwe udaka lwesamente, kwaye lukhupha inxalenye yamanzi asongiweyo.Ukwandisa ngokufanelekileyo ukumanzi komxube wekhonkrithi.
(2) I-Lubricant effect: I-agent yokunciphisa amanzi ineqela elinamandla kakhulu le-hydrophilic, elenza ifilimu yamanzi phezu kweengqungquthela ze-samente, ukunciphisa ukuchasana kwe-sliding phakathi kweengqungquthela ze-samente, ngaloo ndlela iphucula ngakumbi umbane wekhonkrithi.
(3) Isithintelo se-steric: I-agent yokunciphisa amanzi ine-hydrophilic polyether side chains, eyenza i-hydrophilic i-dimensional adsorption layer kwi-surface ye-cement particles, ebangela ukuphazamiseka kwe-steric phakathi kwamaqhekeza e-samente, ngaloo ndlela iqinisekisa ukuba ikhonkrithi ineempawu ezintle.ukudilika.
(4) Ukukhutshwa okucothayo kwempembelelo yamasebe e-copolymerized: Ngexesha lokuvelisa kunye nokulungiselela inkqubo ye-agent entsha yokunciphisa amanzi, amatyathanga e-branched anemisebenzi ethile yongezwa.Le khonkco ye-branched ayinayo kuphela i-steric hindrance effect, kodwa ingasetyenziselwa ngexesha lokunyuswa okuphezulu kwe-samente.Iipolycarboxylic acids ezineziphumo zokusasaza zikhutshwa kwindawo yealkaline, ephucula isiphumo sokusasazeka kwamasuntswana esamente kwaye ilawule ngokufanelekileyo ilahleko yokudilika kwekhonkrithi ngexesha elithile.
Ixesha lokuposa: Feb-19-2024