Anti-watsawa shine muhimmin ma'aunin fasaha don auna ingancin wakili na anti-watsawa.Hydroxypropyl methylcellulose wani fili ne mai narkewar ruwa, wanda kuma aka sani da guduro mai narkewa ko ruwa mai narkewa.Yana ƙara daidaituwar cakuda ta hanyar ƙara danko na ruwan hadewa.Yana da wani hydrophilic polymer abu.Ana iya narkar da shi cikin ruwa don samar da mafita ko watsawa.Gwaje-gwaje sun nuna cewa lokacin da adadin superplasticizer na tushen naphthalene ya karu, ƙari na superplasticizer zai rage juriyar watsawar turmi siminti da aka haɗa sabo.Wannan shi ne saboda naphthalene na tushen babban inganci mai rage ruwa shine surfactant.Lokacin da aka ƙara na'urar rage ruwa a cikin turmi, mai rage ruwa zai kasance a kan saman simintin simintin don sa saman simintin ya sami caji iri ɗaya.Wannan tarwatsewar wutar lantarki yana sanya sassan siminti su zama Tsarin ɗigon ruwa na simintin ya tarwatse, kuma an saki ruwan da aka naɗe a cikin tsarin, wanda zai haifar da asarar ɓangaren simintin.A lokaci guda, an gano cewa tare da karuwar abun ciki na HPMC, juriya na tarwatsa sabon turmi na ciminti yana samun mafi kyau kuma mafi kyau.
01. Bugu da kari na HPMC yana da bayyanannen retarding sakamako a kan turmi cakuda.Tare da haɓaka abun ciki na HPMC, lokacin saitin turmi yana ƙarawa a jere.Ƙarƙashin abun ciki na HPMC iri ɗaya, turmi da aka kafa a ƙarƙashin ruwa yana da sauri fiye da abin da ke cikin iska Molding yana ɗaukar tsawon lokaci don saitawa.Wannan fasalin yana da fa'ida don yin famfo na ruwa a ƙarƙashin ruwa.
02. Ƙarin ma'aunin rage ruwa yana inganta matsalar ƙara yawan buƙatun ruwa na turmi, amma dole ne a kula da adadinsa da kyau, in ba haka ba za a rage juriya na watsawa a karkashin ruwa na turmin siminti mai gauraya sabo.
03. Akwai ɗan bambanci a tsarin da ke tsakanin simintin manna siminti da aka haɗe da HPMC da samfurin da ba komai ba, kuma akwai ɗan bambanci a cikin tsari da yawa na samfuran simintin da aka zuba a cikin ruwa da iska.Samfurin da aka samar a ƙarƙashin ruwa na tsawon kwanaki 28 yana ɗan ɗanɗano.Babban dalili kuwa shi ne, karin sinadarin HPMC yana matukar rage asara da tarwatsewar siminti a lokacin da ake zuba ruwa, amma kuma yana rage dankon dutsen siminti.A cikin aikin, a ƙarƙashin yanayin tabbatar da tasirin rashin rarrabawa a ƙarƙashin ruwa, ya kamata a rage yawan adadin HPMC kamar yadda zai yiwu.
The HPMC karkashin ruwa ba dispersible kankare admixture da ake amfani a gada kafuwar aikin injiniya na expressway, da zane ƙarfin matakin ne C25.Bisa ga asali gwajin, adadin siminti ne 400kg, da compounded silica fume ne 25kg/m3, mafi kyau duka adadin na HPMC ne 0.6% na siminti adadin, ruwa-ciminti rabo ne 0.42, da yashi kudi ne 40%, da kuma fitar da naphthalene-tushen high-ingancin ruwa rage ruwa ne Adadin siminti ne 8%, da kankare samfurin a cikin iska for 28 days, da matsakaita ƙarfi ne 42.6MPa, karkashin ruwa kankare tare da digo tsawo na 60mm na 28 days. , Matsakaicin matsakaicin ƙarfi shine 36.4MPa, ƙarfin ƙarfi na simintin da aka yi da ruwa da simintin da aka samar da iska 84.8%, tasirin ya fi mahimmanci.
Lokacin aikawa: Afrilu-24-2023