Microsilica hmoov yog ib qho kev ua tau zoo ntawm cov ntxhia hauv cov khoom siv pozzolanic, uas tuaj yeem ua rau lub qhov hws ntawm cov cement hais, thiab tib lub sijhawm tsim cov gel nrog cov khoom siv dej, thiab ua rau cov khoom siv alkaline magnesium oxide los tsim cov gel.
1. Concrete microsilica hmoov yog siv los tsim cov qib siab -qib pob zeb (C70 thiab siab dua), ua kom muaj zog thiab kev ua haujlwm ntawm cov pob zeb.
2. Tsim cov impermeability siab (Ntau dua los yog sib npaug rau P30) thiab tus kheej -waterproof structural qhob rau siv nyob rau hauv subways, tunnels, thiab hauv qab daus ntawm high- nce vaj tse.
3. Qhov loj me me ntawm microsilica hmoov yog qhov tsim nyog, muaj zog ceev, siab hardness thiab zoo hnav tsis kam. Nws tuaj yeem txhim kho qhov tensile, compressive, cuam tshuam lub zog thiab hnav tsis kam ntawm cov khoom kho, thiab kev puas tsuaj tuaj yeem nce los ntawm 0.5 mus rau 2.5 npaug.
4. Microsilica hmoov tuaj yeem ua kom cov thermal conductivity, hloov cov khoom nplaum thiab txhim kho cov nplaim hluav taws kub.
5. Nws tuaj yeem txo qis exothermic ncov kub ntawm epoxy resin curing cov tshuaj tiv thaiv, txo cov linear expansion coefficient thiab shrinkage tus nqi ntawm cov khoom kho, yog li tshem tawm cov kev ntxhov siab sab hauv thiab tiv thaiv kev tawg.
6. Vim yog qhov loj me me thiab tsim nyog faib ntawm microsilica hmoov, nws tuaj yeem txo thiab tshem tawm cov sedimentation thiab stratification phenomena.
7. Microsilica hmoov yog cov ntshiab huv, nrog cov ntsiab lus impurity tsawg thiab ruaj khov lub cev thiab tshuaj lom neeg, uas endows cov khoom kho nrog zoo rwb thaiv tsev kev ua tau zoo thiab arc tsis kam.
8. Hauv kev tsim cov khoom siv Marine thiab tshuaj lom neeg, vim muaj qhov ntom ntom ntawm cov pob zeb microsilica hmoov, nws muaj txiaj ntsig zoo tiv thaiv kev nkag mus thiab yaig ntawm sulfate thiab chloride ions rau hauv cov pob zeb, zam kev xeb ntawm cov pob zeb ua pob zeb thiab yog li txuas ntxiv kev pab cuam lub neej ntawm cov pob zeb.
9. Cov tshuaj muaj pes tsawg leeg ntawm microsilica hmoov yog silicon dioxide (SiO2), uas yog ib qho inert tshuaj thiab tsis hnov tsw tshuaj nrog feem ntau cov kua qaub thiab cov hauv paus. Microsilica hmoov yog sib npaug sib npaug thiab npog qhov chaw ntawm cov khoom, thiab muaj zog tiv thaiv corrosion, ua rau muaj zog tiv thaiv cavitation yaig los ntawm 3 mus rau 16 zaug.
10. Qhov ntom ntom ntawm microsilica hmoov yog tsawg: ib qho yog nruab nrab ntawm 0.2 thiab 0.8, thiab lwm qhov yog nyob nruab nrab ntawm 1.0 thiab 2.2. Raws li cov khoom siv polymer filling, nws yuav tsum tau siv tsawg dua li lwm cov pob zeb hauv av, muaj qhov hnyav me me, txuag cov khoom siv polymer, thiab yog li tuaj yeem txo cov nqi khoom.
11. Frost tsis kam ntawm microsilica hmoov: Tom qab 300 mus rau 500 ceev khov -thaw cycles, tus txheeb ze elastic modulus ntawm microsilica hmoov nce 10 mus rau 20%, thaum cov pob zeb zoo tib yam nce 30 mus rau 73% tom qab 25 mus rau 50 cycles. Yog li ntawd, Frost tsis kam ntawm pob zeb tuaj yeem txhim kho.
12. Thaum ntxov lub zog ntawm microsilica hmoov: Microsilica hmoov pob zeb ua kom luv lub sij hawm induction thiab muaj cov yam ntxwv ntawm lub zog thaum ntxov. Cov yam ntxwv no txhua yam zoo heev!
13. Nyob rau hauv kev txuag dej, kev nthuav dav thiab choj engineering tej yaam num, pob zeb tsis tsuas yog xav tau cov ntsiab lus saum toj no, tab sis kuj muaj cov kev cai nruj heev rau nws hnav tsis kam thiab yaig tsis kam. Nws yog ib qho tsim nyog yuav tau ntxiv microsilica hmoov rau pob zeb.
14. Microsilica hmoov muaj kev ua haujlwm zoo heev thiab dej- txo kev ua haujlwm, ua rau nws tsim nyog los ua ib qho kev sib xyaw rau thaum ntxov - lub zog thiab siab - lub zog pob zeb yuav tsum tau siv rau kev tsim kho sai. Admixtures rau siab - lub zog shotcrete siv rau kev txhawb nqa thaum lub sij hawm tsim kho ntawm tunnels, subways, thiab loj lub hauv paus pit lug; Admixtures rau pob zeb siv nyob rau hauv underwater tsim tej yaam num (xws li choj piers, DAMS, drilling platforms, thiab lwm yam).
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