Yiziphi izinhlobo ezahlukene zodaka olomile?Ukusetshenziswa kwempushana ye-latex ehlakazeka kabusha

Udaka lwempuphu eyomile lusho into eyimbudumbudu noma eyimpuphu eyakhiwe ngokuxubana okungokomzimba kwezinhlanga, izinto zikasimende ezingaphili, nezithasiselo ezomisiwe futhi zahlolwa ngengxenye ethile.Yiziphi izithasiselo ezivame ukusetshenziselwa udaka lwempushana eyomile?Udaka lwempushana eyomile ngokuvamile lisebenzisa usimende wase-Portland njengento kasimende, futhi inani lempahla kasimende ngokuvamile libalelwa ku-20% kuya ku-40% wodaka olomile lwempuphu;Ama-aggregate amaningi amahle ayisihlabathi se-quartz futhi adinga inani elikhulu lokwelashwa kwangaphambili okunjengokomiswa nokuhlolwa ukuze kuqinisekiswe ukuthi usayizi wezinhlayiyana zazo nekhwalithi ihlangabezana nezidingo zefomula;Ngezinye izikhathi umlotha we-fly, i-slag powder, njll. nazo zengezwa njengezixube;Ama-Admixtures ngokuvamile asetshenziswa ngamanani amancane, asukela ku-1% kuya ku-3%, kodwa abe nomphumela obalulekile.Zivame ukukhethwa ngokuvumelana nezidingo zefomula yomkhiqizo ukuze kuthuthukiswe ukusebenza, ukubekwa, amandla, ukuncipha, nokumelana nesithwathwa sodaka.

Yiziphi izinhlobo ezivame ukusetshenziswa zezithasiselo ze-powder mortar ezomile?

Impushana ye-latex ehlakazeka kabusha

I-latex powder e-redispersible ingathuthukisa izici ezilandelayo ku-powder mortar omile:

① Ukugcinwa kwamanzi nokusebenza kodaka olusanda kuxutshwa;

② Ukusebenza okuhlanganisayo kwezendlalelo eziyisisekelo ezihlukene;

③ Ukuguquguquka nokusebenza kokuguqulwa kodaka;

④ Amandla okugoba nokubumbana;

⑤ Ukumelana nokugqoka;

⑥ Ukuqina;

⑦ Ukuqina (ukungangenisi).

Ukusetshenziswa kwei-latex powder ehlakazeka kabushaodakeni olunamekwe ngongqimba oluncane, i-ceramic tile binder, uhlelo lwangaphandle lokufakwa odongeni, nezinto zokuzilinganisa phansi kubonise imiphumela emihle.

I-ejenti yokugcina amanzi kanye nokuqina

Ama-thickeners okugcina amanzi ikakhulukazi ahlanganisai-cellulose ethers, isitashi ether, njll. I-cellulose ether esetshenziswa odakeni lwempushana eyomile ngokuyinhloko i-methyl hydroxyethyl cellulose ether (I-MHECkanye ne-hydroxypropyl methyl cellulose ether (I-HPMC).

I-ejenti yokunciphisa amanzi

Umsebenzi oyisisekelo wama-ejenti okunciphisa amanzi ukunciphisa isidingo samanzi sodaka, ngaleyo ndlela kuthuthukiswe amandla awo okucindezela.Ama-ejenti amakhulu okunciphisa amanzi asetshenziswa odakeni lwempuphu owomile afaka i-casein, i-ejenti yokunciphisa amanzi esekwe ku-naphthalene, i-melamine formaldehyde condensate, ne-polycarboxylic acid.I-Casein iyi-superplasticizer enhle kakhulu, ikakhulukazi udaka lwezingqimba ezincanyana, kodwa ngenxa yemvelo yayo, ikhwalithi yayo kanye nentengo ngokuvamile kuyashintshashintsha.Ama-ejenti okunciphisa amanzi ochungechunge lweNaphthalene avame ukusetshenziswa i-β-Naphthalenesulfonic acid formaldehyde condensate.

I-coagulant

Kunezinhlobo ezimbili zama-coagulants: i-accelerator ne-retarder.Ama-accelerating agents asetshenziselwa ukusheshisa ukumiswa kanye nokuqina kodaka, futhi i-calcium formate ne-lithium carbonate isetshenziswa kabanzi.I-Aluminate ne-sodium silicate nayo ingasetshenziswa njengama-ejenti asheshisayo.I-retarder isetshenziselwa ukwehlisa ukumiswa kanye nokuqina kodaka, futhi i-tartaric acid, i-citric acid nosawoti wayo, kanye ne-gluconate isetshenziswe ngempumelelo.

I-ejenti engangeni manzi

Ama-agent okuvimbela amanzi ikakhulukazi ahlanganisa izinhlanganisela ze-polymer ezifana ne-iron chloride, izinhlanganisela ze-organic silane, ama-fatty acid salts, imicu ye-polypropylene, nerabha ye-styrene butadiene.I-agent ye-iron chloride yokuvimbela amanzi inomphumela omuhle wokuvimbela amanzi, kodwa ijwayele ukugqwala kwezinsimbi zensimbi nezingxenye ezishunyekiwe zensimbi.Ama-salts e-calcium angancibiliki akhiqizwa ukusabela kukasawoti we-acid enamafutha ane-calcium ions endaweni yokufaka usimende ezindongeni zama-capillaries, adlala indima ekuvimbeni izimbotshana futhi enze lezi zindonga zamashubhu e-capillary zibe izindawo ezingaphansi kwe-hydrophobic, ngaleyo ndlela edlala indima yokungangeni kwamanzi.Izindleko zeyunithi zale mikhiqizo ziphansi, kodwa kuthatha isikhathi eside ukuxuba udaka ngokulinganayo namanzi.

i-fiber

Imicu esetshenziselwa udaka lwempushana eyomile ihlanganisa i-alkali resistant glass fiber, polyethylene fiber (polypropylene fiber), high-high and high modulus polyvinyl alcohol fiber (polyvinyl alcohol fiber),i-wood fiber, njll. Okuvame ukusetshenziswa kakhulu amandla aphezulu kanye ne-high modulus polyvinyl alcohol fibers kanye ne-polypropylene fibers.Amandla aphezulu kanye nemicu ye-polyvinyl alcohol ye-modulus ephezulu inokusebenza okungcono kanye nenani eliphansi kunemicu ye-polypropylene engenisiwe.Ama-fibers asatshalaliswa ngendlela engafanele futhi ngokulinganayo ku-matrix kasimende, futhi asondelene kakhulu nosimende ukuvimbela ukwakheka nokuthuthukiswa kwama-microcracks, okwenza i-matrix yodaka iminyene, futhi ngaleyo ndlela ibe nokusebenza okungangeni kwamanzi kanye nomthelela omuhle kakhulu kanye nokumelana nokuqhekeka.Ubude buyi-3-19 mm.

I-Defoamer

Okwamanje, ama-polysiloxanes asetshenziswa embonini ye-polysiloxanes eyomile, ikakhulukazi i-polysiloxane.Ukusetshenziswa kwama-defoamers akukwazi nje ukulungisa okuqukethwe kwe-bubble, kodwa futhi kunciphise ukuncipha.Ezinhlelweni ezisebenzayo, ukuze kuthuthukiswe ukusebenza okuphelele, izithasiselo eziningi zidinga ukusetshenziswa ngesikhathi esisodwa.Kuleli qophelo, kuyadingeka ukunaka ithonya elihlangene phakathi kwezithasiselo ezihlukahlukene.Ngaphezu kwalokho, kuyadingeka futhi ukunaka inani lezithasiselo ezingeziwe.Kumbalwa kakhulu ukukhombisa umphumela wezithasiselo;Kakhulu, kungase kube nemiphumela engemihle.