Daim ntawv thov ntawm silicon hmoov
Silicon hmoov yog tus cwj pwm los ntawm cov khoom siv zoo kawg nkaus (qhov nruab nrab cov hmoov me me yog 0.1um, tsuas yog ob peb puas tawm ntawm cov ntawv ua hmoov av) thiab thaj tsam loj (15000m2 / kg). Thaum silica hmoov ntxiv ntxiv rau pob zeb ua, nws lub zog muaj raws li hauv qab no:
(1) Lub cev ua si. Vim tias nws cov lus tau zoo, nws nyob rau lub qhov hws ntawm cov cement ntau, ua rau cov roj slurry ntau dua, txhim kho microstructure ntawm MAAs thiab sib sau ua ke, thiab yog li txhim kho macroscopic lub cev-lub cev muaj zog (lub zog, impermeability, durability, elastic modulus, thiab lwm yam) ntawm cov khoom siv pob zeb.
(2) Kev fab tshuaj lom neeg. Lub ntsiab lus tseem ceeb ntawm silicon hmoov silica (Sio2) nyob rau hauv cov xwm txheej ntawm alkaline excitation, nag lossis daus nrog cov cement hydration Ca (OH2) hnov mob, tsim nrog hydraulic lub zog ntawm silicate gel, hydrated calcium silicate gel (tseem hu ua CSH gel), cov gel txhaws rau hauv cov hlab ntsha, capillary pore ua me dua, thiab tsis ua ntxiv, lub compactness ntawm qhob tuaj yeem ua kom zoo heev. Thiab lub zog ntawm calcium silicate hydrate gel muaj ntau dua li ntawm Ca (OH) 2 gel. Yog li, silicon hmoov muaj ob qhov zoo ntawm volcanic tshauv nyhuv thiab cov nyhuv ua haujlwm, uas tuaj yeem txhim kho qhov ntshav thiab ua kom sib xyaw ntawm cov pob zeb ua ke tshiab, thiab ua tiav lub hom phiaj ntawm kev nkag siab txhim kho cov pob zeb ua kom zoo.
