Tsiku Lolemba: 26, Aug, 2024
1. Kapangidwe ka michere
Zinthu zazikulu ndi zomwe zili c3a ndi c4af. Ngati zomwe zili mu zinthu izi zimakhala zochepa, kuwerengera kwa simenti ndi kutsika kwamadzi kudzakhala bwino, komwe C3A ili ndi mphamvu yolimba pazosinthidwa. Izi ndizomwe zimachepetsa madzi oyambira adsorbs c3a ndi c4af. Kuphatikiza apo, kuchuluka kwa ma c3a ndikolimba kuposa kwa c4af, ndipo kumawonjezera ndikuwonjezeka kwa simenti. Ngati zigawo zambiri C3A zigawo zili mu simenti, zimatsogolera mwachindunji kwa madzi ochepa kusungunuka mu sulfate, zomwe zimapangitsa kuchepa kwa kuchuluka kwa zisungunuke masitima.
2. Ubwino
Ngati simenti ndi yabwino, malo ake apadera adzakhala akuluakulu, ndipo pomukwapula adzaonekeratu. Pofuna kupewa nyumbayi, kuchuluka kwa madzi kumafunikira kuwonjezeredwa kwa icho. Pofuna kupeza zosintha zokwanira, ndikofunikira kuwonjezera kugwiritsa ntchito madzi ochepetsa madzi mpaka ena. Nthawi zambiri, ngati simenti ndi yabwino, malo ena a simenti amakhala okwera, ndipo kuchuluka kwa kuchepa kwa madzi kuchuluka kwa simenti kudzakula, kumapangitsa kuti zikhale zovuta kutsimikizira kuti madzi a simenti. Chifukwa chake, mwa njira yeniyeni yokhotakhota ndi kuchuluka kwa madzi okwera, kuchuluka kwa madzi kuyenera kulamuliridwa mosamala kuonetsetsa kuti simenti ndi mpumulo wamadzi ali ndi kusintha kwakukulu.
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3. Kugawa kwa tinthu tating'onoting'ono
Kukakamizidwa kwa gawo la simenti pa simenti Zomwe zili pazinthu zosakwana 3 miyeso mu simenti zimasiyana kwambiri ndi opanga simenti osiyana, ndipo nthawi zambiri amagawidwa pakati pa 8-18%. Mukatha kugwiritsa ntchito makina otseguka mphero, malo ena a simenti adayamba bwino kwambiri, omwe ali ndi vuto lalikulu pakusintha kwa simenti ndi madzi.
4.. Kuzungulira tinthu tating'onoting'ono
Pali njira zambiri zosinthira simenti. M'mbuyomu, tinthu tambiri tinali chifukwa chopewa kupera m'mphepete ndi ngodya. Komabe, pochita opareshoni yeniyeni, kuchuluka kwakukulu kwa tinthu tating'onoting'ono tiwonekere, komwe kumakhudza kwambiri simenti. Kuti muthetse bwino vutoli, ukadaulo wachitsulo wachitsulo ungagwiritsidwe ntchito mwachindunji, zomwe zingathandize kwambiri masiketi a simenti, kuchepetsa kugwiritsa ntchito ndalama, ndikufupikitsa nthawi yopukutira simenti. Pambuyo pa kuzungulira kwa simenti kumayendetsedwera, ngakhale kuti zomwe zimapangitsa kuti pakhale mlingo wamadzi mulibe zazikulu kwambiri, zimatha kusintha madzimadzi oyamba a simenti patali kwambiri. Izi zimawonekeratu kuti kuchuluka kwa madzi kutsika kwamadzi kogwiritsidwa ntchito ndi kochepa. Kuphatikiza apo, mutatha kukonza mawonekedwe a simenti, madzi a phala timenti amathanso kusintha pamlingo wina.
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5. Zida zosakanikirana
Pogwiritsa ntchito simenti mdziko langa, zinthu zina zimasanjidwana. Zidazi zosavuta nthawi zambiri zimaphatikizapo ntchentche yamoto, phulusa la malasha, loolite ufa, ndi phulusa lambiri, ndi phulusa labwino kwambiri kupezeka. Ngati phulusa lapiri ndi gulu la malasha limagwiritsidwa ntchito ngati zida zosakanikirana, ndizovuta kupeza kusintha kosakaniza bwino. Kuti mupeze madzi abwinobwino madzi, kuchepa kwa madzi kumafunikira. Ngati ntchentche phulusa kapena Zeolite imaphatikizidwa muzinthu zosakanikirana, kutaya kwa kuyatsa kumagwirizana mwachindunji ndi kukomoka kwa phulusa lamoto. Pokhapokha zotayika pazizindikiro, madzi ambiri amafunikira, komanso malo okwera phulusa. Pambuyo pochita zambiri, zatsimikiziridwa kuti kusintha kwa zinthu zosakanikirana kwa simenti ndi madzi kumawonekera makamaka pazinthu zotsatirazi: kusintha kwa kuchuluka kwake kumawonjezeka. ② Ngati phulusa phulusa limagwiritsidwa ntchito mwachindunji kuti musinthe phala la simenti, madzi ake oyambira amatha kuchepetsedwa kwambiri pambuyo pa zinthu zopitilira 30%. ③ Ngati Zeolite imagwiritsidwa ntchito mwachindunji kuti musinthe simenti, ndizosavuta kuyambitsa madzi osakwanira a phala. Pakakhala zovuta zina, ndikuwonjezeka kwa slag yosinthira, kusungirako kwa simenti kudzakulitsidwa. Phulusa lauluka limakulirakulira, kuchepa kwa mabetawo kukuwonjezeka pamlingo wina. Mlingo wa Zeolte Reftment umapitilira 15%, kutayika kwa phazi kudzakhala kodziwikiratu.
6. Mphamvu ya mtundu wosakaniza pa madzi amtundu wa simenti
Powonjezera gawo lina la Adndixtorete, magulu a hydrophobic a Addictures akhala pansi pa simenti tinthu tating'onoting'ono, ndipo magulu a hydrophilic amalozera filimu ya Adsororption. Chifukwa cha madsorption adsorption ya mawonekedwe a kapangidwe kake, pamwamba pa tinthu tating'onoting'ono tidzakhala ndi minda yofanana. Chifukwa cha mphamvu ngati milandu imangobwereza, simenti idzapangitsa kufafaniza mawonekedwe oyambira kumadzi, kotero kuti mawonekedwe a nthaka atha kumasulidwa m'madzi, potero kukonza madzimadzi a thupi lamadzi kuti mpaka. Poyerekeza ndi ma admintires ena, gawo lalikulu la ma polyhydroxy acid acinessive ndikuti amatha kupanga magulu osiyanasiyana pazotsatira zazikulu. Nthawi zambiri, hydroxy acid admakemet onjezerani kwambiri pamadzi a simenti. Pokonza konkire-ntrant, ndikuwonjezera gawo lina la polyhyhydroxy acid ma Admiles amatha kukhala ndi zotsatira zabwino. Komabe, pakugwiritsa ntchito ma polhydroxy acid acinestures, zimakhala ndi zofunikira pakugwiritsa ntchito zida za simenti. Mukugwiritsa ntchito, osakaniza amakonda kukweza ndikumatira pansi. Pogwiritsa ntchito nyumbayo, amakondanso kutsata madzi ndi stratization. Pambuyo powononga, imakondanso kukhala aukali, mizere ya mchenga, ndi mabowo a ndege. Izi zikugwirizana mwachindunji ndi kusagwirizana kwa polyhydroxy acid adcations ndi simenti ndi admil a adnti. Polyhydroxy acid adkimettures ndi ma admixtives omwe ali ndi gawo loyipa kwambiri pakati pa mitundu yonse ya adminixtures.
Post Nthawi: Aug-26-2024