Vim li cas silicon-grey pob zeb ua rau tawg?
Oct 28, 2024Tso lus
Vim li cas silicon-grey pob zeb ua rau tawg?
Cov laj thawj tseem ceeb vim li cas silica fume pob zeb (micro-silica hmoov pob zeb) yog qhov ua rau tawg hauv qee kis muaj xws li:
Shrinkage:silica fume qhob nyob rau hauv cov txheej txheem hydration yuav tshwm sim qhuav shrinkage tshwm sim, tshwj xeeb tshaj yog nyob rau hauv thaum ntxov theem, vim dej evaporation thiab cement hydration cov tshuaj tiv thaiv, ua rau cov pob zeb ntim txo, ua rau tawg.
Dej-binder ratio:Txhawm rau txhim kho lub zog ntawm cov pob zeb, cov dej-binder piv feem ntau txo. Yog tias qhov sib piv ntawm cov dej-binder tsawg dhau, nws yuav ua rau cov pob zeb tsis sib xws hauv cov txheej txheem sib xyaw thiab nchuav, uas yuav cuam tshuam rau nws qhov kev ua tau zoo tag nrho thiab kev ua haujlwm tawg.
Kev kho tsis zoo:Qhob xav tau kev kho kom zoo thaum lub sij hawm hardening txheej txheem kom muaj qhov chaw ntub dej kom zoo. Yog tias kev saib xyuas tsis txaus, nws tuaj yeem ua kom dej evaporation thiab ua rau muaj kev pheej hmoo ntawm kev tawg.
Kev hloov kub:Cov pob zeb yuav muaj kev hloov pauv kub tom qab nchuav, tshwj xeeb tshaj yog nyob rau hauv huab cua kub lossis txias, thiab qhov kub hloov pauv yuav ua rau cov khoom nthuav dav thiab cog lus tsis sib xws, ua rau tawg.
Txoj kev tsim kho:Yog tias qhov kev tsim kho tsis raug thaum lub sij hawm pouring, vibrating thiab smoothing txheej txheem, nws yuav ua rau muaj kev tsis xws luag nyob rau hauv lub pob zeb, xws li npuas los yog pores, cuam tshuam nws tag nrho cov qauv stability.
Cov ntsiab lus dej:Cov dej noo adsorption ntawm silica fume tuaj yeem ua rau pob zeb kom qhuav sai heev nyob rau theem pib, ua rau muaj kev tawg.
Txhawm rau txo qhov kev pheej hmoo ntawm cov kab nrib pleb hauv wollastonite pob zeb, cov kev ntsuas hauv qab no tuaj yeem ua tau: tswj cov dej-binder piv, ntxiv dag zog rau kev kho, xaiv cov txheej txheem tsim kho tsim nyog, thiab ntsuas qhov cuam tshuam ntawm qhov kub thiab txias ntawm cov pob zeb ua ntej kev tsim kho.
Yog tias koj xav tau, thov hu rau peb hauv qab no.
