Calcium formateupfu huchena kana hushoma hweyero, hunogona kukurumidza kumhanyisa simende uye kudzivirira dambudziko rekunonoka kumisa munguva yechando kana tembiricha yakaderera uye mamiriro emvura, kuitira kuvandudza simba rekutanga redhaka. Nhasi ndichakuudza nezvazvocalcium formate kukurumidza kuisa uye kuomesa kongiri chii chakananga?
Calcium formate inomhanyisa kuseta uye kuomesa kongiri ne:
1. Kupfupisa nguva yekutanga yekuisa
2. Kugadzirisa kunonoka kuisa simenti pasi pemamiriro ekupisa
3. Wedzera kuwedzera kwekukura kwesimba rekutanga
4. Kupfupisa nguva yekuvhara mumodule mukugadzirwa kwekongiri dzakagadzirirwa zvikamu
5. Kupfupisa nguva yekongiri kuti isvike pakuremerwa kwayo
Semuenzaniso, Portland simenti inowanzoshandiswa mudhaka rakaoma, iro rinoratidzwa nesimba rakaderera mukutanga uye simba rakakwirira muchikamu chekupedzisira, uye kuwedzera huwandu hwakakodzera hwe calcium formate inobatsira kuvandudza simba rekutanga rechigadzirwa.
MuPortland simende system,calcium formate ine mhedzisiro yekusimudzira coagulation uye simba rekutanga, nekuti iyo formate ion muHCOO- inogona kugadzira kufanana kweAHt neAFm (C₃A·3Ca(HCOO)₂·30H₂OC₃A·Ca(HCOO)·10H₂0, nezvimwewo), izvo zvinoderedza zvakanyanya nguva yekuisa simende.
Pamusoro pe,calcium formateinogona kukurudzira hydration ye calcium silicate, nokuti HCOO- ions inopararira nokukurumidza kupfuura Ca2 + ions, uye inogona kupinda mukati me hydration layer yeC3S neC2S, ichikurumidza kunaya kweCa (OH)₂uye kuora kwe calcium silicate. HCOO- ions inogona zvakare kusunga maatomu esilicon kuti aite neOH- kuburikidza nekuita kwemakemikari, kuitira kuyambuka-akabatana nemapoka silicate, kukurudzira kuumbwa kweCSH gel, nekuvandudza kuoma kwesimba resimende dhaka.
Nguva yekutumira: May-31-2024