Izithasiselo ze-powder mortar ezomile yizinto ezisetshenziselwa ukuthuthukisa ukusebenza kwezingxube zodaka olusekelwe kusimende.

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? Okulandelayo yisingeniso sokuqukethwe okuyinhloko kwezithasiselo zodaka olomile olulethwe yi-Jianshe Net ukuze zisetshenziswe.

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, kusukela ku-1% kuya ku-3%, kodwa abe nomphumela obalulekile. Zivame ukukhethwa ngokuvumelana nezidingo zefomula yomkhiqizo ukuthuthukisa ukusebenza, ukubeka, amandla, ukuncipha, nokumelana nesithwathwa sodaka.

Yiziphi izinhlobo ezivame ukusetshenziswa zezithasiselo ze-powder mortar ezomile?

Impushana ye-latex ehlakazeka kabusha

I-EVA copolymeringathuthukisa izici ezilandelayo odakeni lwempushana eyomile:

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 kwempushana ye-latex ehlakazeka kabusha odakeni olunamekwe olwendlalelo oluncane, isibopho sethayela le-ceramic, uhlelo lwangaphandle lokuvala udonga, nezinto zokuzilinganisa phansi kubonise imiphumela emihle.

I-ejenti yokugcina amanzi kanye nokuqina

Izithako ezigcina amanzi ikakhulukazi zihlanganisa ama-cellulose ethers, ama-starch ether, njll. I-cellulose ether esetshenziswa odakeni lwempuphu eyomile ikakhulukazi i-methyl hydroxyethyl cellulose ether (MHEC) kanyei-hydroxypropyl methyl cellulose ether(HPMC).

I-ejenti yokunciphisa amanzi

Umsebenzi oyisisekelo wama-ejenti okunciphisa amanzi ukunciphisa isidingo samanzi sodaka, ngaleyo ndlela uthuthukise amandla awo okucindezela. Ama-ejenti amakhulu okunciphisa amanzi asetshenziswa odakeni lwempuphu owomile ahlanganisa i-casein, i-ejenti yokunciphisa amanzi esekwe ku-naphthalene, i-melamine formaldehyde condensate, ne-polycarboxylic acid. I-Casein iyi-Super Plasticizer esebenza kahle kakhulu, ikakhulukazi odakeni oluncane oluncane, kodwa ngenxa yokuthi iwumkhiqizo wemvelo, 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-accelerator asetshenziselwa ukusheshisa ukumiswa kanye nokuqina kodaka, i-Calcium formate ne-Lithium carbonate asetshenziswa kakhulu, kanti i-Aluminate ne-Sodium metasilicate nayo ingasetshenziswa njengama-accelerator. Ama-retarders asetshenziselwa ukunciphisa ukumiswa kanye nokuqina kodaka. I-tartaric acid, i-citric acid nosawoti wayo kanye ne-Gluconic acid isetshenziswe ngempumelelo.

I-ejenti engangeni manzi

I-ejenti engangeni manzi ikakhulukazi ihlanganisa: I-Iron(III) chloride, i-organic silane compound, i-fatty acid salt, i-polypropylene fiber, i-Styrene-butadiene nezinye izinhlanganisela ze-macromolecular. I-iron(III) chloride ejenti engangeni manzi inomphumela omuhle ongangeni manzi, kodwa kulula ukubangela ukugqwala kokuqiniswa kanye nezingxenye ezishumekiwe 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 lwempuphu eyomile ihlanganisa i-alkali resistant glass fiber, polyethylene fibre (polypropylene fiber), high-high and high modulus polyvinyl alcohol fiber (i-polyvinyl alcohol fiber), i-wood fiber, njll. Evame ukusetshenziswa kakhulu amandla aphezulu futhi 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.