Ntchito yomanga matope a pulasitala yapita patsogolo kwambiri m'zaka zaposachedwapa. Mutondo wopukutira wayambanso kuchoka pachikhalidwe chodzisakaniza tokha kupita ku matope omwe amapezeka pano osakaniza ndi matope. Kupambana kwake ndi kukhazikika ndizinthu zazikulu zolimbikitsira kukula kwa pulasitala wamakina, ndipo cellulose ether imagwiritsidwa ntchito ngati pulasitala matope Chowonjezera chachikulu chimakhala ndi ntchito yosasinthika. Mu kuyesera uku, posintha mamasukidwe akayendedwe ndi kasungidwe kamadzi ka cellulose ether, komanso kudzera mukusintha kopanga, zotsatira za zoyeserera monga kuchuluka kwa kusungirako madzi, kutayika kosasunthika kwa 2h, nthawi yotseguka, kukana kwa sag, ndi madzimadzi a pulasitala pamakina omanga. anaphunzira. Pomaliza, anapeza kuti mapadi efa ali ndi makhalidwe a mlingo mkulu madzi posungira ndi katundu wabwino kuzimata, ndipo makamaka oyenera kumanga mechanized wa pulasitala matope, ndi zizindikiro zonse pulasitala matope kukumana mfundo dziko.
Kuchuluka kwa madzi posungira matope
Mlingo wosungira madzi wa pulasitala matope ndi njira yowonjezereka pamene kukhuthala kwa cellulose ether kumachokera ku 50,000 mpaka 100,000, ndipo ndizomwe zimachepa pamene zimachokera ku 100,000 mpaka 200,000, pamene chiwerengero chosungira madzi cha cellulose ether cha kupopera makina chafika. kuposa 93%. Mtondowo ukachulukirachulukira, ndiye kuti matopewo sataya magazi. Pa kupopera mbewu mankhwalawa kuyesera ndi matope kupopera makina, anapeza kuti pamene madzi posungira mlingo wa mapadi efa ndi otsika kuposa 92%, matope sachedwa magazi pambuyo anaikidwa kwa nthawi, ndipo, pa chiyambi cha kupopera mbewu mankhwalawa. , ndizosavuta makamaka kutsekereza chitoliro. Choncho, pokonzekera pulasitala matope oyenera kumanga makina, tiyenera kusankha cellulose ether ndi mlingo wapamwamba posungira madzi.
Pulata matope 2h kutaya kugwirizana
Malinga ndi zofunikira za GB/T25181-2010 “Ready Mixed Mortar”, kutayika kosasunthika kwa maola awiri kwa matope wamba opaka pulasitala ndi zosakwana 30%. Ma viscosity a 50,000, 100,000, 150,000, ndi 200,000 adagwiritsidwa ntchito pakuyesa kutayika kosasintha kwa 2h. Zitha kuwoneka kuti pamene kukhuthala kwa cellulose ether kumawonjezeka, 2h kusasinthika kutayika kwa matope kudzachepa pang'onopang'ono, zomwe zimasonyezanso kuti kukhuthala kwa cellulose ether Kukwera kwamtengo wapatali, kumapangitsanso kukhazikika kwa matope komanso bwino ntchito ya anti-delamination ya matope. Komabe, pa kupopera mbewu mankhwalawa, kunapezeka kuti panthawi ya chithandizo cham'tsogolo, chifukwa kukhuthala kwa cellulose ether ndikokwera kwambiri, kugwirizana pakati pa matope ndi trowel kudzakhala kwakukulu, komwe sikungakhale kothandiza kumanga. Choncho, pofuna kuonetsetsa kuti matope sakhazikika ndipo sakuwonongeka, kutsika kwa kukhuthala kwa cellulose ether, kumakhala bwino.
Maola otsegulira matope okuta
Pambuyo popaka matope opopera pakhoma, chifukwa cha kuyamwa kwamadzi kwa khoma lapansi ndi kutuluka kwa chinyezi pamtunda wamatope, matopewo amapanga mphamvu inayake pakapita nthawi, zomwe zidzakhudza kumangidwanso kotsatira. . Nthawi yotseka idawunikidwa. Mtengo wa viscosity wa cellulose ether uli pakati pa 100,000 mpaka 200,000, nthawi yoyika sikusintha kwambiri, komanso imakhala ndi mgwirizano wina ndi kuchuluka kwa kusungirako madzi, ndiko kunena kuti, kuchuluka kwa kusungirako madzi, nthawi yayitali. nthawi yoyika matope.
Kuchuluka kwa pulasitala matope
Kutayika kwa zida zopopera mbewu kumakhudzana kwambiri ndi kutha kwa matope opaka pulasitala. Pansi pa chiŵerengero chofanana cha madzi ndi zinthu, ndipamwamba kukhuthala kwa cellulose ether, kutsika kwamadzimadzi amatope. , zomwe zikutanthawuza kuti kuwonjezereka kwa kukhuthala kwa cellulose ether, kumapangitsanso kukana kwa matope komanso kuvala kwakukulu pazida. Choncho, pomanga makina opangira pulasitala matope, kukhuthala kwa cellulose ether kumakhala bwino.
Sag kukana kwa pulasitala matope
Pambuyo popopera matope pakhoma, ngati kukana kwa matope sikuli bwino, matopewo amagwedezeka kapena kutsetsereka, zomwe zimakhudza kwambiri kuphulika kwa matope, zomwe zidzadzetsa mavuto aakulu pakumanga pambuyo pake. Choncho, matope abwino ayenera kukhala ndi thixotropy ndi sag kukana. Kuyeseraku kunapeza kuti pambuyo pa etha ya cellulose yokhala ndi mamasukidwe a 50,000 ndi 100,000 idakhazikitsidwa molunjika, matailosiwo adatsikira pansi, pomwe ether ya cellulose yokhala ndi mamasukidwe a 150,000 ndi 200,000 sanadutse. Ngodyayo idali yokhazikika, ndipo palibe kutsetsereka komwe kudzachitika.
Mphamvu ya pulasitala matope
Pogwiritsa ntchito ma 50,000, 100,000, 150,000, 200,000, ndi 250,000 a cellulose ethers pokonza zitsanzo za pulasitala yamatope kuti amange makina, anapeza kuti ndi kuwonjezeka kwa cellulose ether viscosity, mphamvu ya pulasitala yamatope imatsika. Izi ndichifukwa choti cellulose ether imapanga yankho lapamwamba kwambiri m'madzi, ndipo kuchuluka kwa mpweya wokhazikika wokhazikika udzayambitsidwa panthawi yosakaniza matope. Simenti ikaumitsa, thovu la mpweya limapanga kuchuluka kwa voids, potero kuchepetsa mphamvu ya matope. Choncho, matope opaka pulasitala oyenera kumanga makina ayenera kukwaniritsa mphamvu zomwe zimafunidwa ndi kapangidwe kake, ndipo ether yoyenera ya cellulose iyenera kusankhidwa.
Nthawi yotumiza: Mar-15-2023