Ib hom kev npaj thiab txheej txheem ntawm alkali-dawb accelerator
Jan 15, 2023
Ib hom kev npaj thiab txheej txheem ntawm alkali-dawb accelerator
Qhov kev tsim kho muaj feem xyuam rau kev ua haujlwm ntawm cov accelerators, tshwj xeeb tshaj yog rau txoj kev npaj ntawm alkali-dawb accelerator.
Cov txheej txheem hauv qab:
Accelerator yog ib qho khoom siv feem ntau siv rau pob zeb. Ntxiv alkali-dawb accelerator rau pob zeb tsis tsuas yog ua kom qhov chaw thiab hardening ceev ntawm cov cement, tab sis kuj txhim kho lub zog thaum ntxov. Zoo heev cohesiveness thiab bonding zog, txo tus nqi rebound, zoo txo cov khoom poob los ntawm rebound, kev txhim kho kev lag luam, thiab txo cov alkaline cement plua plav hauv huab cua, tiv thaiv ib puag ncig thiab ua kom cov kev tsim kho kom zoo. Txawm li cas los xij, cov accelerators tsis muaj alkali feem ntau muaj hydrofluoric acid. Piv txwv li, cn110255955a nthuav tawm cov tsis-alkali kua ceev-setting tus neeg saib xyuas, uas yog tus cwj pwm nyob rau hauv hais tias, los ntawm huab hwm coj feem pua, cov ntaub ntawv raw ntawm non-alkali kua ceev-setting tus neeg saib xyuas muaj xws li cov nram qab no Cheebtsam: txhuas sulfate: 45 feem pua rau 55 feem pua, nano-alumina: 5 feem pua -10 feem pua, hydrofluoric acid: 5 feem pua -10 feem pua, solubilizing tivthaiv: 3 feem pua -7 feem pua, fluorosilicate: 2 feem pua { {17}} feem pua , thaum ntxov zog tivthaiv: 1 feem pua -4 feem pua, ruaj khov Cheebtsam: 0.5-1 feem pua, dej: 20-32 feem pua . Tus nqi ntawm hydrofluoric acid siv nyob rau hauv no alkali-dawb kua accelerator yog siab li 5 feem pua rau 10 feem pua.
Technical realization cov ntsiab lus:
Lub hom phiaj ntawm qhov kev tsim kho tam sim no yog los muab ib hom kev npaj ntawm alkali-dawb ceev-tus neeg saib xyuas. Alkali-dawb ua kua sai-setting tus neeg sawv cev muaj xws li txhuas fluorosilicate, txhuas fluoride, txhuas sulfate, citric acid, polyhydroxy dispersion enhancer, thiab stabilizer, nrog ib tug fluorine ntsiab lus ntawm txog 4.5 feem pua thiab ib tug txhuas cov ntsiab lus ntawm 5 feem pua, nrog kev pab los ntawm qhov zoo heev coagulation accelerator nyhuv ntawm fluorine-aluminium complex tov. Siv fluorosilicic acid ua raw khoom siv hydrofluoric acid txuag nqi thiab muaj kev nyab xeeb dua.
