Zuva Rokutumira:5,Chivabvu,2022

Kana simende yakasanganiswa nemvura, nekuda kwekukwezvana pakati pemamorekuru esimende, kudhumhana kwekufamba kwekupisa kwezvikamu zvesimende mumushonga, mhosva dzakapesana dzemaminerari esimende panguva ye hydration process, uye kumwe kushamwaridzana kwemvura yakanyungudika. firimu mushure mekunge simenti yemaminerari yave hydrated. yakabatanidzwa, kuitira kuti simiti slurry iite chimiro che flocculation. Kuwanda kwemvura inoputika yakaputirwa muhutano hwe flocculation, kuitira kuti pamusoro pezvikamu zvesimende hazvigoni kusanganiswa zvakakwana nemvura, zvichiita kuti kuwedzerwa kwemvura kuwedzere uye kukundikana kuzadzisa basa rinodiwa rekuvaka.

Mushure mekuwedzera iyo superplasticizer, iro hydrophobic boka reinochaja superplasticizer molecule inonangwa yakashambadzirwa pamusoro pesimende particle, uye hydrophilic boka rinonongedza kune ane aqueous solution, richigadzira adsorption firimu pamusoro pesimende particle, kuitira kuti pamusoro. chesimende chimedu chine mutero wakafanana. Pasi pechiito chekugadzirisa magetsi, zvimedu zvesimende zvinoparadzaniswa kubva kune mumwe, uye chimiro che flocculation ye simenti slurry inoparara. Kune rumwe rutivi, mvura yakasununguka muhutano hwe flocculation ye simenti slurry inosunungurwa, iyo inowedzera kusangana kwepamusoro pakati pemasimiti uye mvura, zvichiita kuti kuwedzera kwemvura yemusanganiswa; Uyezve, kutsvedza pakati pezvimedu zvesimende kunowedzerawo nekuda kwekukora kwemvura yakanyungudutswa firimu inoumbwa pamusoro pemasimende esimende. Uyu ndiwo musimboti wekuti mvura inodzikisa maajenti inoderedza kushandiswa kwemvura nekuda kwekushambadza, kupararira, kunyorova uye kudzosa.

Nheyo: Muchidimbu, mumiriri wekudzikisa mvura anowanzo ari surfactant adsorbs pamusoro pemasimende esimende, zvichiita kuti zvimedu zviratidze magetsi. Izvo zvimedu zvinodzingirirana nekuda kwechaji yemagetsi mamwechete, kuitira kuti masimende zviparadzirwe, uye mvura yakawandisa pakati pezvimedu inoburitswa kuderedza mvura. Kune rumwe rutivi, mushure mekuwedzera mvura inoderedza mumiririri, firimu rekushambadza rinoumbwa pamusoro pezvikamu zvesimende, izvo zvinokanganisa hydration speed ye simenti, inoita kuti kukura kwekristaro kwesimende slurry kuve kwakakwana, hurongwa hwetiweki hunowedzera. dense, uye inovandudza simba uye dhizaini density ye simenti slurry.

Kana kudonha kwekongiri kwakangofanana, musanganiswa unogona kuderedza kushandiswa kwemvura unonzi kongiri yemvura inoderedza. Mvura inoderedza mumiriri yakakamurwa kuita yakajairwa yekudzikisa mvura mumiriri uye yakanyanya-inoshanda yekudzikisa mvura. Avo vane mwero wekudzikisa mvura uri pasi kana kuenzana ne8% vanonzi vadzikisiri vemvurawo zvavo, uye avo vane mwero wekudzikisa mvura unodarika 8% vanonzi vadzikisiri vemvura vane hunyanzvi. Zvinoenderana neyakasiyana mhedzisiro iyo superplasticizers inogona kuunza kune kongiri, iyo yakakamurwa kuva yekutanga-simba superplasticizers uye air-entraining superplasticizers.

Nekuunza basa rekuwedzera mvura inodzikisa agent kune chisimbiso chekurapa agent, isu tine kunzwisisa kwakajeka kwedambudziko rekuwedzera mvura inoderedza agent mukuvaka kwechisimbiso kurapa agent. Mukutaura kwakapfava, basa remvura inodzikisa mumiririri inzvimbo inoshanda, iyo inogona kuita kuti masimende ive neiyo electrode yakafanana, uye kusunungura mvura pakati pezvimedu kuburikidza nehunhu hwehumwe hwechaji repulsion, nekudaro ichidzikisa mvura.