Post Zuva: 20, Jun, 2022

3. Iyo Mechanism yekuita yevanhu vepedyo

Iyo Mechanism yemvura inoderedza mumiririri kuti uvandudze iyo fluidity yekongiri musanganiswa inonyanya kusanganisira kupararira maitiro uye lubricating mhedzisiro. Mvura inoderedza mumiririri ndeyechokwadi chaicho, mumwe mugumo wemberi wenguva refu molecular inokanganisa mumvura - hydrophilic broup, uye imwe mugumo ndeyekusagadzikana mumvura - hydrophobic group.

a. Kupararira: Pashure pokunge simende ichisanganiswa nemvura, nekuda kwekukwezva kwemvura, simende slurry inoumba chimiro chemvura, kuti mvura yemvura yakasanganiswa yakaputirwa muzvikamu zveSement uye haigoni kutora chikamu mahara kuyerera uye lubrication. Mhedzisiro, nokudaro inokanganisa iyo fluidity yemusanganiswa wekongiri. Apo mvura ichidzora mumiririri inowedzerwa, nekuti mvura inoderedza mumhanzi mamorekuru inogona kuve yakadhindwa pamusoro pechikamu chechidimbu, chamhepo chichava chakashata (kazhinji chakashata), kugadzira lectrostatic kudzora mhedzisiro, iyo inosimudzira kupararira kweiyo simenti zvidimbu uye kuparadzwa kweiyo floccolity chimiro. .

b. Lubrication: Iyo Hydrophilic Boka iri Mukuru wePamusoro, saka iyo adsorption firimu remuviri pane iyo mamalekita yakagadziriswa, uye iyi firimu yemvura ine girimu rakanaka rinogona kuderedza kunyatso kutsvedza Kuramba pakati peiyo simenti zvikamu, saka nekuvandudza iyo fluidity yekongiri.

Mhedzisiro yemvura kuderedza kongiri, nezvimwe.

a. Set nguva. Superplasticasters kazhinji haina kudzosera maitiro, uye inogona kutosimudzira hydration uye kuomesa kwesimendi. Iyo yakadzoserwa yakakura supplasticastizer inyonganiso yemukurulastionzader uye kudzoreredza. Mumamiriro ezvinhu akajairika, kuitira kuti unonoke iyo hydration yeiyo simende uye kuderedza kurasikirwa kwekutsvedza, imwe huwandu hwedzinza rinowedzerwa kumvura inoderedza mumiririri.

b. Zvirimo zvegesi. Parizvino, iyo inowanzoshandiswa polycarbox yePolycarlate yemvura inoderedza ine mhepo yezvinyorwa, uye mhepo yezvinyorwa zvekongiri haifanire kunge yakanyanya, neimwe nzira esimba richaderedzwa zvakanyanya.

c. Kuchengeta kwemvura.

Superplastionders haabatsire zvakanyanya kuderedza kubuda ropa kwekongiri, uye kungatowedzera kubuda ropa. Concrete kubuda ropa kunowedzera kana iyo Dosage iri kunyanyisa.