Chidule:
Makampani omanga ali ndi gawo lofunika kwambiri pakupanga dziko lamakono, lomwe simenti ndiye maziko omangira. Kwa zaka zambiri, ofufuza ndi mainjiniya akhala akupitiliza kufunafuna njira zowongolera ubwino ndi magwiridwe antchito a simenti. Njira imodzi yabwino imaphatikizapo kuwonjezera zowonjezera, zomwe calcium formate yakhala wosewera wodziwika bwino.
yambitsani:
Simenti ndi gawo lofunika kwambiri pa ntchito yomanga ndipo imafuna kukonzanso kosalekeza kuti ikwaniritse zosowa za makampani. Kuwonjezera zowonjezera kwakhala njira yothandiza yokonzanso mbali zosiyanasiyana za simenti. Calcium formate, yomwe imapangidwa ndi calcium oxide ndi formic acid, yakopa chidwi cha kuthekera kwake kokonzanso makhalidwe a simenti. Nkhaniyi ikufuna kufotokoza njira zomwe calcium formate imakhudzira ubwino ndi magwiridwe antchito a simenti.
Kapangidwe ka mankhwala a calcium formate:
Musanafufuze za momwe calcium formate imakhudzira simenti, ndikofunikira kumvetsetsa kapangidwe kake ka chinthu ichi. Calcium formate ndi ufa woyera wa kristalo wokhala ndi formula ya mankhwala Ca(HCOO)2. Ndi wosungunuka m'madzi ndipo uli ndi mphamvu zosakanikirana. Kuphatikiza kwapadera kwa calcium ndi ma ayoni a formate kumapereka mphamvu zapadera za chinthucho, zomwe zimapangitsa kuti chigwiritsidwe ntchito m'njira zosiyanasiyana, kuphatikizapo kukonza simenti.
Njira:
Kuphatikizidwa kwa calcium formate mu zosakaniza za simenti kumabweretsa njira zingapo zomwe zimathandizira kuti magwiridwe antchito akhale abwino. Njira imodzi yayikulu imaphatikizapo kukhathamiritsa kwa simenti mwachangu. Calcium formate imagwira ntchito ngati chothandizira, kulimbikitsa mapangidwe a ma hydrate monga calcium silicate hydrate (CSH) ndi ettringite. Kuthamanga kumeneku kumapangitsa kuti nthawi yokhazikika ikhale yofulumira komanso kukula kwamphamvu koyambirira.
Kuphatikiza apo, calcium formate imagwira ntchito ngati malo opangira madzi kuti madzi alowe, zomwe zimakhudza kapangidwe ka simenti. Kusintha kumeneku kumapangitsa kuti madzi azikhala ochulukirapo komanso ofanana, zomwe zimathandiza kuti madzi azikhala olimba komanso kuti asamalowe.
Kuphatikiza apo, calcium formate imagwira ntchito mu pozzolanic reaction, pomwe imakhudzana ndi calcium hydroxide kuti ipange CSH gel yowonjezera. Izi sizimangothandiza kukula kwa mphamvu komanso zimachepetsa chiopsezo cha kuchedwa kwa ettringite kupanga (DEF), chinthu chomwe chingasokoneze kulimba kwa simenti kwa nthawi yayitali.
Kukweza khalidwe la simenti:
Kukula kwa Mphamvu Poyamba:
Kuthekera kwa calcium formate kufulumizitsa madzi a simenti kumatanthauza kusintha kwakukulu pakukula kwa mphamvu koyambirira. Izi ndizofunikira kwambiri pamapulojekiti omanga komwe mphamvu imafunika kupezeka mwachangu. Nthawi yofulumira yokhazikika yomwe imalimbikitsidwa ndi calcium formate ingayambitse kuchotsa mawonekedwe mwachangu komanso kupita patsogolo mwachangu kwa zomangamanga.
Kulimba kwamphamvu:
Calcium formate imawonjezedwa kuti isinthe kapangidwe ka simenti, zomwe zimapangitsa kuti zinthu zikhale zolimba kwambiri. Kuchuluka kwa kachulukidwe ndi kufalikira kwa ma hydrate mofanana kumathandizira kuti zinthu zisawonongeke ndi mankhwala, kuzizira komanso kusungunuka, komanso kuwonongeka. Chifukwa chake, kapangidwe ka simenti yothiridwa ndi calcium formate kamakhala ndi moyo wautali.
Chepetsani kulowerera kwa madzi:
Chimodzi mwa zinthu zofunika kwambiri zomwe zimakhudza kulimba kwa konkire ndi kulola kwake kulowa. Calcium formate imachepetsa kulola kulowa mwa kukhudza kapangidwe ka ma pore a simenti. Kupangidwa kwa matrix yolimba yokhala ndi ma pores opyapyala kumachepetsa kulowa kwa madzi ndi zinthu zowopsa, motero kumawonjezera kukana kwa konkire kuti isawonongeke.
Kuchepetsa Alkali Silica Reaction (ASR):
Kafukufuku wapeza kuti calcium formate imatha kuchepetsa chiopsezo cha alkali-silica reaction, njira yowopsa yomwe ingayambitse kutupa kwa gel ndikusweka mu konkire. Mwa kukhudza kapangidwe ka ma pore ndi kapangidwe ka mankhwala a simenti, calcium formate imathandiza kuchepetsa kuwonongeka komwe kungachitike chifukwa cha ASR.
Zowonjezera magwiridwe antchito:
Kukonza bwino makina:
Mphamvu ya calcium formate pa hydration ya simenti imakhudza bwino kugwira ntchito kwa konkire yatsopano. Nthawi yokhazikika komanso kuchuluka kwa hydration kumathandiza kukonza kayendedwe ka madzi, zomwe zimathandiza kuyika ndi kukanikiza konkire. Izi ndizothandiza makamaka pamene kuyika kosavuta ndikofunikira.
kuwongolera kutentha:
Kugwiritsa ntchito calcium formate mu simenti kumathandiza kuchepetsa zotsatira za kutentha kwambiri panthawi yokonza. Kufulumizitsa nthawi yokhazikitsa zomwe zimapangitsa kuti calcium formate ikule kungathandize kuti simenti ikule mwachangu komanso kuchepetsa kuopsa kwa mavuto okhudzana ndi kutentha monga kusweka kwa kutentha.
Zinthu zofunika kuziganizira pa nkhani yokhazikika:
Calcium formate ili ndi zinthu zomwe zimakwaniritsa zolinga za makampani omanga. Kuchuluka kwake kwa zinthu zotayira kumathandiza kugwiritsa ntchito zinyalala, ndipo mphamvu zake pa kulimba ndi moyo wautali zimathandiza kuchepetsa mavuto onse okhudzana ndi chilengedwe omwe amadza chifukwa chosintha ndi kukonza nyumba zokalamba.
Mavuto ndi Zoganizira:
Ngakhale ubwino wogwiritsa ntchito calcium formate mu simenti ndi woonekeratu, mavuto ndi zolepheretsa zomwe zingachitike ziyenera kuganiziridwa. Izi zingaphatikizepo kukwera mtengo, kuyanjana ndi zosakaniza zina, komanso kufunika koyang'anira mosamala mlingo kuti tipewe zotsatirapo zoyipa. Kuphatikiza apo, magwiridwe antchito a nthawi yayitali komanso kulimba kwa konkriti yokonzedwa ndi calcium formate pansi pa mikhalidwe inayake yachilengedwe kumafuna kafukufuku wowonjezereka ndi maphunziro akumunda.
Pomaliza:
Kuphatikiza calcium formate mu simenti ndi njira yabwino yowonjezerera ubwino ndi magwiridwe antchito a zinthu zofunika kwambiri zomangirazi. Kudzera mu njira yake yogwirira ntchito yambiri, calcium formate imafulumizitsa madzi, imakonza kapangidwe kake kakang'ono ndipo imathandizira pazinthu zosiyanasiyana zofunika, kuphatikizapo kukula kwa mphamvu koyambirira, kulimba kwambiri komanso kuchepa kwa kulowa kwa madzi. Pamene makampani omanga akupitilizabe kusintha, ntchito ya zowonjezera monga calcium formate pakukonza zinthu za simenti ikuyembekezeka kukhala yofunika kwambiri. Kafukufuku wowonjezereka ndi ntchito zothandiza mosakayikira zidzawululanso momwe calcium formate ingagwiritsidwire ntchito bwino komanso moyenera mu simenti, zomwe zimapanga njira yopangira nyumba zolimba komanso zokhazikika.
Nthawi yotumizira: Disembala-05-2023