Konkriti Wodzipangira nokha (SCC) ndiukadaulo wamakono wonkriti womwe umayenda pansi pa kulemera kwake kuti mudzaze fomu popanda kufunikira kwa makina oyenda. Phindu lake limaphatikizapo kugwirira ntchito bwino, kuchepa ndalama, ndikulimbikitsidwa. Kukwaniritsa mikhalidweyi kumafunikira kuwongolera kwenikweni kwa kusakaniza, nthawi zambiri ndi thandizo la ma Adminiture ngati hydroxypropyl (hpmc). Cellulose ether elymer imachita mbali yofunika yosintha za spc, kukonza bata yake ndi mawonekedwe ake.
Katundu ndi ntchito za HPMC
Hydroxypypyl methylcellulose (hpmc) ndiopanda poizoni, kusungunuka police-madzi wochokera ku cellulose. Malo ake ofunikira akuphatikizapo:
Kusintha kwa Vission: HPMC kumawonjezera mawilo othetsera matenda am'madzi, kukulitsa chilengedwe cha thixotropic cha kusakaniza konkriti.
Kusunga kwamadzi: ili ndi kuthengo kwabwino kwamadzi, komwe kumathandizira kugwiritsidwa ntchito konkriti pochepetsa madzi.
Zotsatira ndi Coutheon: HPMC imathandizira kulumikizana pakati pa magawo osiyanasiyana mu konkriti, kukulitsa katundu wake.
Kulimbikitsa Kukhazikika: Zimakhazikitsa kuyimitsidwa kwa ophatikizidwa mu kusakaniza, kuchepetsa tsankho komanso magazi.
Zinthu izi zimapangitsa kuti hpmc ikhale yosangalatsa mu SCC, monga imayendera zovuta monga tsankho, magazi, komanso amasungabe maluwa osasunthika popanda kusokonekera.
Udindo wa HPMC mu konkriti yodziletsa
1. Kusintha kwa kugwirira ntchito
Ntchito yoyamba ya hpmc mu scc ndikuwonjezera kugwirira ntchito kwake powonjezera ma viwa. Kusintha kumeneku kumapangitsa kuti scc ituluke mosavuta pansi pa kulemera kwake, kukwaniritsa zovuta zovuta ndikukwaniritsa kuchuluka kwa kuphatikiza popanda kufunikira kogwedezeka popanda kugwedezeka. HPMC imatsimikizira kuti konkriti ikhale yolimba nthawi yayitali, yomwe imakhala yopindulitsa kwa maukulu akulu kapena ovuta.
Flows: HPMC imathandizira kuphatikizira kosakanikirana kwa thixotropic, kulola kuti isungunuke madzi akasakanizika koma kunenepa pakuyimilira. Izi zimathandizira mawonekedwe a SCC modekha, ndikuonetsetsa kuti imayenda bwino kuti izaza nkhungu ndikuyika zowunikirana mipiringidzo popanda tsankho.
Kusasinthika: Mwa kuwongolera mafayilo, hpmc kumathandizira kusakanikirana kosakanikirana, kuonetsetsa kuti gulu lirilonse limagwirira ntchito mosamalitsa magwiridwe antchito ndi kukhazikika.
2. Kusankhana ndi kuwongolera magazi
Kusankhana (kulekanitsa kwa ophatikizidwa kuchokera ku phala la simenti) ndikutulutsa magazi (madzi akukwera pamtunda) ndi nkhawa zambiri pa SPC. Izi zitha kusokoneza umphumphu ndi pansi pa konkriti.
Kusakaniza kwa homogeneone: kuthekera kwa HPMC kuti muwonjezere mafayilo a simenti amachepetsa kayendedwe ka madzi ndi okalamba, potengera kuwopsa kwa tsankho.
Kuchepetsa magazi: Posunga madzi mkati mwa kusakaniza, hpmc imathandiza kupewa magazi. Madziwonso amatsimikiziranso kuti njira yosinthitsira hydration njira ikupitirirabe kukulitsa ndi kukhazikika kwa konkriti.
3.. Kukhazikika Kwakukulu
HPMC imathandizira kukhazikika kwa scc pokonza coutheon pakati pa tinthu. Kukhazikika kofunikira kumeneku ndikofunikira pakusungabe kugawa yunifolomu ya ophatikizika ndikuletsa mapangidwe a voids kapena malo ofooka.
Coutheon: Zomatira za HPMC zimalimbikitsa bwino pakati pathunthu pakati pathunthu tinthu tambiri ndi ophatikizika, zomwe zimapangitsa kusakaniza kosiyanasiyana komwe kumapangitsa tsankho.
Kukhazikika: hpmc kumalimbitsa micrestructanicle kwa konkritiyo, kulola ngakhale kufalitsa zowonjezera ndikuletsa mapangidwe a mtanda ndi tinthu tating'onoting'ono tokha.
Zotsatira Za Makina Overting
1. Mphamvu Zovuta
Mphamvu ya hpmc pa mphamvu yovuta ya SCC nthawi zambiri imakhala yabwino. Poletsa tsankho ndikuwonetsetsa kusakaniza kovuta, hpmc kumathandizanso kukhalabe ndi mtima wosagawanika kwa micreprection ya konkriti, yomwe imatsogolera ku mikhalidwe yabwino.
Kubwezeretsa: Kupititsa patsogolo kwamadzi kumawonetsa kuti kumatha kumatha mphamvu, kumathandizira kukulitsa matrix olimba.
Tchulani yunifolomu: kupewa kusankhana kumabweretsa kufalikira kwa ophatikizira, omwe amathandizira kulimba kwambiri ndikuchepetsa chiopsezo cha mfundo zofooka.
2. Kukhazikika
Kugwiritsa ntchito HPMC mu SCC kumathandizira kulimba kwake ndikuwonetsetsa kuti ndi yochepetsetsa komanso yambiri.
Kuchepetsa Kuvomerezedwa: Coutery Couteion ndikuchepetsa magazi amachepetsa konkritiyo, ndikuchepetsa kukana kwake kwa zinthu zachilengedwe ngati ma freeze-thamles, kuwukira kwa mankhwala.
Kutsiliza Kutsitsidwa: Kupewa magazi ndi tsankho kumatsimikizira kuti malo owala komanso okhazikika, omwe sakonda kusokonekera ndikukula.
Kugwiritsa ntchito ndi kugwiritsa ntchito mankhwala
Kugwira ntchito kwa HPMC mu SCC kumatengera mlingo wake komanso zofunikira zina mwa kusakaniza. Mitengo yosiyanasiyana imachokera ku 0.1% mpaka 0,5% ya kulemera kwa simemer, kutengera zomwe mukufuna komanso zomwe mukufuna ndi zinthu zina zomwe zimasakaniza.
Kusakaniza Kusakaniza: Kupanga kusakaniza mosamala ndikofunikira kuti muthe kupeza zabwino za HPMC. Zinthu monga mtundu wamtundu wa okalamba, simementi, ndi ma addicturetextaxtures ayenera kulinganiza kuti akwaniritse zoyenera kuchita, kukhazikika, ndi mphamvu.
Kugwirizana: HPMC iyenera kukhala yogwirizana ndi akwati ena omwe amagwiritsidwa ntchito posakaniza, monga superplariction ndi cheke chamadzi, kupewa kusinthana komwe kungasokoneze magwiridwe antchito a SCC.
Hydroxypypyl methylcellulose (hpmc) amatenga gawo lofunikira pakulimbika ntchito yodzipangira nokha (SCC). Kutha kwake kusintha ma Isccect, kukonza madzi, ndikukhazikitsa kusakaniza kwa ma adilesi, kuphatikizapo tsankho, magazi, komanso kuyenda bwino. Kuphatikiza kwa HPMC mu SCE kumapangitsa kusakaniza kovuta kwambiri, kokhazikika, komanso kokhazikika, kumapangitsa kuti kukhala kofunikira kwambiri pakugwiritsa ntchito konkriti kwamakono. Mapangidwe oyenera ndi kusakaniza mosamalitsa ndikofunikira kuti mugwire zabwino zonse za HPMC, kuonetsetsa kuti STC imakwaniritsa njira zina zofunika pomanga ntchito zosiyanasiyana.
Post Nthawi: Jun-18-2024