Dab tsi yog cov txiaj ntsig ntawm alkali-dawb accelerants?

Accelerators yog ib qho khoom siv tsis tseem ceeb hauv kev tsim vaj tsev. Lawv tso cai rau cov pob zeb los teeb tsa thiab ua kom tawv sai, tsim kom muaj zog kom tau raws li cov kev cai tshwj xeeb ntawm kev txau, kev tsim kho sai, los yog kev tiv thaiv dej thiab kev tiv thaiv. Txij li feem ntau cov accelerators muaj Cl- thiab alkali hlau ions, lawv ua rau muaj kev phom sij rau cov pob zeb ua haujlwm thiab cov hlau sab hauv, thiab tuaj yeem tsim kev puas tsuaj rau tib neeg thaum tsim kho. Txhawm rau txo qhov tsis zoo ntawm cov accelerators tom qab lub zog ntawm pob zeb thiab txhim kho kev tsim kho ib puag ncig, cov kws tshawb fawb txawv teb chaws tau pib tsim cov accelerators uas tsis yog-alkaline hauv xyoo 1970s. Niaj hnub no, tsis yog-alkaline accelerator technology yog siab heev thiab dav siv.

Non-alkaline accelerators muaj kev cuam tshuam me me rau tom qab lub zog ntawm cov pob zeb thiab tuaj yeem txhim kho nws cov kav ntev, ua rau lawv qhov tseem ceeb hauv ib puag ncig engineering. Lawv haum rau ntau hom cement, xws li Portland cement, slag cement, thiab cov cement sib xyaw. Lawv tshwj xeeb tshaj yog tsim rau kev npaj cov cement tshwj xeeb thiab cov khoom lag luam nrog cov kev cai tshwj xeeb. Yog li ntawd, hloov alkaline accelerators nrog non-alkaline accelerators yog ib qho kev inevitable. Tam sim no, feem ntau siv cov kua uas tsis yog-alkaline accelerators yog aluminium sulfate-based. Lub ntsiab tseem ceeb ntawm aluminium sulfate-based accelerators yog aluminium sulfate. Aluminium ions tuaj yeem hnov ​​​​mob nrog cov khoom siv dej ntawm cov cement ua rau cov cement paste teeb, ua tiav cov txiaj ntsig ntawm kev teeb tsa sai.

Hauv kev tsim vaj tsev, ob txoj kev siv feem ntau yog: qhuav txau thiab txau ntub. Cov tshuaj tsuag qhuav siv cov hmoov accelerators, thaum ntub txau siv cov kua accelerators. Cov tsoos tshuaj tsuag pob zeb feem ntau yog siv cov txheej txheem ziab qhuav thiab siv cov alkaline accelerators, tab sis qhov no ua rau cov plua plav tseem ceeb, qhov chaw ua haujlwm tsis zoo, thiab muaj kev puas tsuaj loj rau cov neeg ua haujlwm tsim kho. Nrog rau kev txhim kho sai ntawm kev tsim kho, kev cuam tshuam ib puag ncig tau dhau los ua qhov tseem ceeb, ua rau Tuam Tshoj los tawm tswv yim rau kev tsim kho kom ruaj khov thiab kev tsim kho ib puag ncig. Tsis yog-alkaline kua accelerators tau tshwm sim los teb. Lawv yog synthesized los ntawm sulfoaluminate, ester plasticizers, catalysts, thiab lwm yam chemical Cheebtsam. Lawv tsim nyog rau kev tsim kho vaj tse, cov pob zeb hauv qab dej, thiab kho cov dej xau thaum muaj xwm ceev. Cov kua dej uas tsis yog-alkaline accelerators muaj cov ntsiab lus alkali tsawg, ua rau muaj kev phom sij tsawg rau cov neeg ua haujlwm thiab ib puag ncig, thiab tsis ua rau muaj kev cuam tshuam alkali-tag nrho, daws qee qhov teeb meem cuam tshuam nrog alkaline accelerators.

Txawm hais tias tsis yog-alkaline accelerators muaj ntau qhov zoo, lawv tsis muaj qhov tsis zoo. Txawm nyob hauv kev xaiv lossis kev tsim kho, ntau yam teeb meem yuav tshwm sim.

Kev ua tau zoo ntawm cov tsis-alkaline accelerators yog nyob ntawm cov cement nws tus kheej, ntau npaum li cas, thiab ib puag ncig yam. Hauv kev siv cov tswv yim, lawv feem ntau tsis ua tiav cov txiaj ntsig xav tau thiab yuav ua rau muaj teeb meem xws li kev teeb tsa ua vaj tse sai heev, ua rau muaj teeb meem hauv cov dej tsis zoo thiab kev kho thaum muaj xwm txheej ceev. Yog tias koj ntsib cov teeb meem no thiab tsis paub yuav daws lawv li cas, thov hu rau pab neeg muaj kev paub ntawm Borida txhua lub sijhawm.