Silica Fume Rau Lub Tsev Pob Zeb

Microsilica, tseem hu ua silica fume, yog cov khoom siv los ntawm kev tsim cov silicon thiab ferrosilicon alloys. Nws yog cov hmoov zoo heev uas muaj cov amorphous silica uas yog 100 npaug me dua li cov cement nplej. Thaum ntxiv rau pob zeb, microsilica txhim kho nws lub zog, ua haujlwm ntev, thiab ua haujlwm tau zoo.

Microsilica feem ntau yog ntxiv rau pob zeb ntawm tus nqi ntawm 5 feem pua ​​​​rau 10 feem pua ​​​​ntawm qhov hnyav ntawm cov cement. Nws reacts nrog calcium hydroxide nyob rau hauv cov cement los tsim ntxiv calcium silicate hydrate (CSH) gel, uas nyob rau hauv lub pores nyob rau hauv lub pob zeb thiab ua rau nws ntau ntom thiab impermeable. Qhov no ua rau muaj zog compressive ntau dua, muaj zog dua, thiab txhim kho kev tiv thaiv kev puas tsuaj thiab tshuaj tua kab mob.

Ntxiv nrog rau nws cov txiaj ntsig ntawm lub cev, microsilica tuaj yeem txhim kho kev ruaj khov ntawm cov pob zeb ntau lawm. Vim tias nws yog cov khoom lag luam los ntawm lwm cov txheej txheem kev lag luam, kev siv microsilica hauv pob zeb tuaj yeem pab txo cov khoom pov tseg thiab txo qhov cuam tshuam ib puag ncig ntawm cov pob zeb ntau lawm.

Silicon dioxide (SiO2) content: >85 feem pua

Poob ntawm ignition (LOI):<4%

Specific surface area: >15, 000 m2/kg

Qhov ceev: 250-700 kg/m3

Xim: grey los yog dawb

Fineness: >90% dhau los ntawm 45µm sieve

Cov ntsiab lus chloride:<0.05% (by weight of silica fume)

NTA:

Zoo heev, cov khoom siv hmoov (feem ntau yog 100 npaug me dua li cov cement zoo tib yam)

High content of silicon dioxide (typically >85 feem pua)

Reactive thiab pozzolanic cov ntaub ntawv uas chemically reacts nrog calcium hydroxide los tsim ntxiv calcium silicate hydrate (CSH) gel, uas ua rau ib tug denser thiab muaj zog pob zeb matrix.

KEV PAB CUAM:

Nce compressive zog thiab durability

Txo permeability thiab susceptibility rau tshuaj tua kab mob

Txhim kho tsis kam rau kev puas tsuaj thiab cuam tshuam

Txhim khu kev tiv thaiv kom khov-thaw cycles

Txo los ntshav thiab cais cov pob zeb sib xyaw

Ua kom muaj zog tiv thaiv alkali-silica

Muaj peev xwm txo qis hauv cov ntsiab lus cement, ua rau txo qis CO2 emissions thiab txo cov pa roj carbon hneev taw

ZHEN IB INTERNATIONAL CO., LTD yog ib lub tuam txhab tshwj xeeb hauv Metallurgical & Refractory cov khoom, koom ua ke ntau lawm, ua, muag thiab importing thiab exporting lag luam.
Kev tsim khoom txhua xyoo thiab muag ntau dua 150,000 tons.
Peb lub Hoobkas npog thaj tsam ntawm 30,{1}} square metres, nws muaj cov cuab yeej ua tiav cov khoom siv niaj hnub no, ob lub hauv paus loj xws li hydro-metallurgy, ob lub chaw soj nstuam tseem ceeb thiab lub chaw kuaj cov ntaub ntawv metallurgical nrog ntau tus kws tshawb fawb laus.