Silica Fume rau kev txhim kho pob zeb muaj zog
Silica fume yog siv nyob rau hauv kev ua tau zoo pob zeb siv, xws li txuas hniav, txoj kev loj, chaw nres tsheb, thiab cov tsev siab, qhov twg siab zog thiab durability yog yuav tsum tau.Nws kuj yog siv nyob rau hauv precast qhob khoom, shotcrete, thiab refractory ntaub ntawv.Silica fume kuj tseem siv tau rau hauv cementitious grouts thiab mortars.
Hauj lwm lawm
Kev piav qhia
Silica fume yog cov khoom lag luam los ntawm kev tsim cov hlau silicon thiab ferrosilicon alloys, thiab nws yog cov khoom siv pozzolanic heev uas tuaj yeem siv los ua ib feem hloov rau cov cement hauv pob zeb. Thaum siv hauv pob zeb, silica fume tuaj yeem txhim kho nws lub zog thiab kav ntev.
Silica fume hais me me heev thiab muaj thaj chaw siab, uas ua rau lawv muaj zog heev nrog cov calcium hydroxide uas tsim thaum lub sij hawm hydration ntawm cement. Cov tshuaj tiv thaiv no tsim ntxiv calcium silicate hydrate (CSH) gel, uas yog thawj binder hauv pob zeb. Qhov ntxiv CSH gel nce qhov ntom ntawm cov pob zeb, ua rau txo qis ntawm nws cov porosity thiab permeability, uas ua rau nws lub zog thiab durability.
Tsis tas li ntawd, kev sib koom ua ke ntawm silica fume rau hauv pob zeb kuj tseem tuaj yeem txo cov ntshav thiab shrinkage uas tshwm sim thaum lub sijhawm kho. Kev ntshav yog qhov tshwm sim uas cov dej tau nce mus rau saum npoo ntawm cov pob zeb tshiab, tawm hauv qab ib txheej ntawm cov cement thiab aggregates uas tsis tshua ntom thiab tsis muaj zog dua li cov pob zeb. Shrinkage yog qhov txo qis hauv ntim uas tshwm sim raws li cov pob zeb qhuav thiab kho, uas tuaj yeem ua rau tawg thiab lwm yam kev puas tsuaj.
Specification
Lub ntiajteb txawj nqus tshwj xeeb: 2.2-2.3
Qhov ceev: 500-700 kg/m3
Qhov chaw saum npoo: 15, 000-30, 000 m2/kg
Poob ntawm ignition: <5 feem pua
Cov dej noo: <3 feem pua
Fineness:> 95% dhau 45 micron sieve
NTA:
Silica fume yog cov khoom siv pozzolanic reactive heev uas zoo heev thiab muaj qhov chaw siab.
Nws yog ib tug byproduct ntawm zus tau tej cov silicon hlau thiab ferrosilicon alloys.
Nws yog tsim los ntawm amorphous silicon dioxide thiab ntau lwm yam kab kawm.
KEV PAB CUAM:
Silica fume tuaj yeem txhim kho lub zog, ua haujlwm ntev, thiab ua haujlwm tsis zoo ntawm pob zeb.
Nws kuj tseem tuaj yeem txo cov permeability thiab ua rau muaj kev tiv thaiv rau cov tshuaj chloride ion nkag mus, uas muaj txiaj ntsig zoo hauv cov qauv uas raug rau ib puag ncig hnyav.
Kev siv cov silica fume tuaj yeem txo qhov kev pheej hmoo ntawm kev tawg thiab txhim kho kev ua haujlwm ntawm cov pob zeb.
Nws yog cov khoom siv hauv eco-phooj ywg raws li nws siv cov khoom pov tseg uas yuav muab pov tseg rau hauv qhov chaw pov tseg.
Cim npe nrov: silica fume rau kev txhim kho pob zeb muaj zog
Xa kev nug
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