Dab tsi yog qhov kev ceev faj rau cov muaj pes tsawg leeg ntawm antifreeze?
May 27, 2024
Tam sim no, cov tuam txhab tsim khoom ua vaj tse feem ntau siv cov tshuaj tiv thaiv kab mob sib xyaw uas suav nrog cov tshuaj tiv thaiv kab mob, lub zog thaum ntxov, cua nkag mus, thiab cov khoom txo cov dej. Txoj hauv kev no tsis yog tsuas yog txo cov tswv yim kev ua haujlwm uas xav tau los ntawm cov neeg tsim khoom ua vaj tsev tab sis kuj tseem pab tswj kev ua haujlwm zoo ntawm ob qho tib si antifreeze tus neeg sawv cev thiab cov txheej txheem tsim khoom ua vaj tse. Thaum cov tshuaj tiv thaiv kab mob sib xyaw ua ke koom nrog ntau yam sib xyaw, yuav tsum tau saib xyuas rau cov hauv qab no:
Cov ntsiab lus dej hauv Antifreeze Agents:Tus nqi ntawm cov dej qhia thaum lub sij hawm npaj cov tshuaj tiv thaiv kab mob yuav tsum tau saib xyuas. Cov ntsiab lus dej siab nrog cov khoom siv tsis zoo tuaj yeem ua rau tus neeg sawv cev tiv thaiv nws tus kheej khov. Yog li ntawd, high-concentration khoom yuav tsum tau ua ntej.
Tswj cov ntsiab lus Inorganic ntsev:Tus nqi ntawm qee cov ntsev inorganic siv hauv cov tshuaj tiv thaiv kab mob thiab lub zog thaum ntxov yuav tsum tau tswj hwm. Ntau cov ntsev inorganic ua haujlwm ob qho tib si ua cov tshuaj tiv thaiv kab mob thiab cov tsuj roj. Kev siv ntau dhau tuaj yeem cuam tshuam tsis zoo rau cov dej-txo tus nqi thiab kev ua haujlwm ntawm cov pob zeb, nrog rau kev ua haujlwm ntev ntawm cov pob zeb.
Kev xaiv cov ntsev uas tsim nyog Inorganic:Nws yog ib qho tseem ceeb uas yuav tau xaiv cov ntsev inorganic uas tsim nyog rau cov tshuaj tiv thaiv kab mob thiab cov khoom muaj zog thaum ntxov kom tsis txhob muaj crystallization thiab nag lossis daus ntawm qhov kub thiab txias, uas tuaj yeem thaiv cov kav dej thiab cuam tshuam cov pob zeb ntau lawm.
Kev siv Organic Antifreeze Cheebtsam:Thaum siv cov khoom siv organic raws li cov khoom siv tshuaj tiv thaiv kab mob, qhov ntau npaum li cas yuav tsum tsis txhob siab dhau, vim tias nws yuav cuam tshuam rau lub zog mus ntev ntawm cov pob zeb.
Tswj cov chloride thiab Alkali Cov ntsiab lus:Cov ntsiab lus chloride thiab alkali hauv cov tshuaj tiv thaiv kab mob yuav tsum tau tswj kom tsis txhob muaj kev phom sij rau kev ua haujlwm ntawm cov pob zeb.
Hauv kev xaus, kev tsim cov tshuaj tiv thaiv kab mob tsis yog tsuas yog sib xyaw cov khoom sib txawv. Kev sim validation yog tsim nyog los txiav txim seb qhov sib xyaw ua ke ntawm ntau cov khoom xyaw yog additive lossis counteractive. Tsis tas li ntawd, qhov cuam tshuam ntawm txhua yam ntawm cov pob zeb ua tau zoo yuav tsum tau txiav txim siab zoo raws li cov khoom siv raw, sib tov proportions, thiab cov kev xav tau.
Kev cuam tshuam ntawm Antifreeze Agents rau kev ua tau zoo ntawm pob zeb
Kev ua haujlwm ntawm cov pob zeb tshiab:Feem ntau cov tshuaj tiv thaiv kab mob, tshwj xeeb tshaj yog hom muaj zog thaum ntxov, ua kom cov dej tawm ntawm cov cement clinker minerals, ua rau cov kua theem ua kua. Yog li, qhov sib ntxiv ntawm cov tshuaj tiv thaiv kab mob tuaj yeem txhim kho qhov tshwm sim los ntshav ntawm cov pob zeb hauv qab xoom xoom. Thaum ntxov muaj zog antifreeze cov neeg ua haujlwm luv luv lub sij hawm ntawm cov pob zeb, pab nws qhov chaw thiab hardening nyob rau hauv sub-zero kub, tab sis lawv yuav tsum tau siv ceev faj nyob rau hauv ntev-ntev thauj npaj-sib tov pob zeb.
Lub zog:Raws li kev tshawb fawb los ntawm Yang Yingzi li al., khov nyob rau hauv sub-zero ib puag ncig ua rau muaj kev puas tsuaj tsawg heev rau cov qauv sab hauv ntawm mortar thiab cement paste tab sis cuam tshuam rau thaum ntxov thiab lig zog ntawm pob zeb. Qhov no feem ntau yog los ntawm kev tsim cov hnab dej hauv qab ntawm cov coarse aggregates thaum lub sij hawm vibration ntawm cov pob zeb tshiab. Thaum cov pob zeb tshiab khov, qhov nthuav dav tshwm sim los ntawm kev hloov pauv ntawm cov dej ua rau "debonding" ntawm coarse aggregates los ntawm cov cement paste, uas ua rau poob ntau lub zog txawm tias tom qab rov qab mus rau qhov kub thiab txias. Kev sib koom ua ke ntawm cov tshuaj tiv thaiv kab mob, los ntawm kev sib xyaw ua ke ntawm kev txo cov dej (txo cov dej-cement piv thiab cov yeeb yaj kiab dej tuab), huab cua nkag (txo cov kev ntxhov siab Frost heave), lub zog thaum ntxov (txhawb cov qauv tsim ntxov), thiab antifreeze (txo qis lub khov. taw tes ntawm cov kua theem), zoo heev txo cov txheej txheem kev puas tsuaj nyob rau hauv cov pob zeb nyob rau hauv sub-zero tej yam kev mob. Yog li ntawd, cov pob zeb uas muaj cov tshuaj tiv thaiv kab mob ua rau pom muaj zog ntau dua li kev siv cov pob zeb nyob rau hauv ob qho tib si sub-zero thiab qhov kub thiab txias. Qhov no qhia tau hais tias lub luag haujlwm tseem ceeb ntawm cov tshuaj tiv thaiv kab mob yog txhawm rau txhim kho thaj chaw hloov pauv ntawm kev sib tshuam ntawm cov pob zeb hauv qab xoom xoom.
Kev ceev faj rau kev siv tshuaj tiv thaiv kab mob
Qhov ntau npaum ntawm cov tshuaj tiv thaiv kab mob yuav tsum tau hloov kho raws li qhov kub thiab txias hloov kom ntseeg tau tias lawv cov tshuaj tiv thaiv kab mob thiab lub zog thaum ntxov. Qhov ntau npaum li cas yuav tsum tau tswj nyob rau hauv ib tug ntau yam, raws li ib co antifreeze thiab thaum ntxov zog Cheebtsam ncaj qha koom nyob rau hauv lub hydration txheej txheem ntawm cement. Kev siv ntau dhau tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub pob zeb ua haujlwm. Yog hais tias qhov kub thiab txias poob qis dhau ntawm daim ntawv thov ntau yam ntawm cov tshuaj tiv thaiv kab mob, kev ntsuas hluav taws xob tsim nyog rau cov pob zeb tshiab tshiab tseem yuav tsum tau coj los tiv thaiv Frost puas.
