Silicon Powder Elevate Lub zog thiab Durability ntawm pob zeb li cas?

Kev koom ua ke me me ntawm microsilica rau hauv pob zeb, ua ke nrog cov dej-txo cov neeg ua haujlwm siab, txhim kho ntau yam ntawm lub cev thiab cov khoom siv ntawm cov pob zeb. Piv txwv li, nws txo qis kev sib cais thiab los ntshav ntawm cov pob zeb, ua kom cov pob zeb ua tau zoo, ua kom cov pob zeb ua kom muaj zog thaum ntxov thiab tom qab, txo cov permeability ntawm chloride ions, zoo txhim kho cov tshuaj tiv thaiv corrosion thiab hnav, thiab tswj kev ncaj ncees ntawm cov pob zeb thaum lub sij hawm underwater tsim. . Nyob rau hauv luv luv, silica fume yog dav siv nyob rau hauv high-durability, high-strength pob zeb.

Kev cuam tshuam rau cov pob zeb sib xyaw Vim yog cov khoom zoo heev thiab thaj chaw loj ntawm silica fume, nws cov dej xav tau yog 130% ~ 150% ntawm cov cement zoo tib yam, yog li qhov fluidity ntawm cov pob zeb txo qis thaum cov ntsiab lus silica fume nce. Yuav kom tswj tau qhov fluidity ntawm pob zeb zoo dua, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov dej-txo cov neeg ua haujlwm siab. Qhov sib ntxiv ntawm silica fume ho txhim kho cov cohesiveness thiab dej tuav ntawm pob zeb.

Kev cuam tshuam rau cov khoom siv tawv tawv

(1) Kev cuam tshuam rau pob zeb muaj zog: Raws li silica fume yog cov khoom siv pozzolanic heev nrog rau thaj chaw loj tshwj xeeb, nws nthuav tawm cov nyhuv pozzolanic muaj zog thaum ntxov, txhim kho lub zog ntawm pob zeb. Nws yog qhov tsim nyog rau kev ua cov pob zeb muaj zog (xws li C80 lossis txawm C100).

(2) Kev cuam tshuam rau pob zeb ua haujlwm ntev: Kev suav nrog silica fume hauv pob zeb hloov nws cov qauv sab hauv. Cov tshuaj tiv thaiv ntawm cov khoom zoo thiab cov khoom siv pozzolanic zoo heev txhim kho lub pore qauv ntawm pob zeb, txo cov porosity, thiab ua rau kom compactness. Txawm li cas los xij, tom qab ntxiv silica fume, nws adsorbs air-entraining agents, uas ua rau kom nce tus nqi ntawm cov cua nkag mus ua kom tiav cov ntsiab lus cua xav tau.

Silica fume qhob nthuav qhia ntau dua shrinkage dua li pob zeb tsis muaj silica fume.

Silica fume pob zeb muaj kev tiv thaiv siab rau sulfate thiab chloride nres.

Silica fume muaj txiaj ntsig zoo hauv mitigating alkali-aggregate cov tshuaj tiv thaiv hauv pob zeb.

Silica fume pob zeb muaj qhov ua haujlwm siab rau kev puas tsuaj.