Juriyar Watsawa muhimmin ma'aunin fasaha ne don auna ingancin maganin hana wargazawa.Cellulose na Hydroxypropyl methylwani sinadari ne na polymer mai narkewa cikin ruwa, wanda kuma aka sani da resin mai narkewa cikin ruwa ko polymer mai narkewa cikin ruwa. Yana ƙara daidaiton haɗin ta hanyar ƙara danko na ruwan gauraya. Wani nau'in kayan polymer ne mai narkewa cikin ruwa, wanda za'a iya narkar da shi a cikin ruwa kuma ya samar da mafita ko ruwa mai narkewa. Gwaje-gwaje sun nuna cewa lokacin da adadin superplasticizer na tsarin naphthalene ya ƙaru, ƙara superplasticizer zai rage juriyar wargajewar turmi na siminti sabo. Wannan saboda jerin naphthalene mai inganci na rage ruwa yana cikin wakilin aiki na saman, lokacin da aka ƙara wakilin rage ruwa a cikin turmi, wakilin rage ruwa a cikin saman barbashi na siminti mai daidaita saman barbashi tare da caji iri ɗaya, tsarin tururin lantarki na barbashi na siminti wanda aka samar ta hanyar rabawa, naɗewa a cikin tsarin sakin ruwa, zai haifar da asarar wani ɓangare na siminti. A lokaci guda, an gano cewa tare da ƙaruwar abun ciki na HPMC, anti wargajewar turmi na siminti sabo ya fi kyau kuma mafi kyau.
Sifofin ƙarfi na siminti:
An yi amfani da cakuda siminti na HPMC a ƙarƙashin ruwa wanda ba ya warwatsewa a cikin injiniyan tushe na gadar babbar hanyar, kuma ƙarfin ƙira shine C25. Bayan gwajin asali, yawan siminti shine 400kg, hayakin silica mai gauraye 25kg/m3,HPMCMafi kyawun adadin shine 0.6% na adadin siminti, rabon siminti na ruwa shine 0.42, ƙimar yashi shine 40%, yawan amfanin naphthalene mai inganci shine 8% na adadin siminti, samfurin siminti a cikin iska 28d, matsakaicin ƙarfi shine 42.6MPa, Matsakaicin ƙarfin simintin da aka zubar a ƙarƙashin ruwa tare da tsayin faɗuwa na 60mm a cikin ruwa shine 36.4mpa na tsawon kwanaki 28, kuma rabon ƙarfi na simintin da aka yi a cikin ruwa da simintin da aka yi a cikin iska shine 84.8%, yana nuna babban tasiri.
1. Ƙara HPMC yana da tasiri mai kyau ga cakuda turmi. Tare da ƙaruwar yawan HPMC, lokacin saita turmi yana tsawaita a jere. A ƙarƙashin irin wannan yanayin na yawan HPMC, lokacin saita turmi a ƙarƙashin ruwa ya fi na iska tsayi. Wannan fasalin yana da amfani ga famfon siminti a ƙarƙashin ruwa.
2, wanda aka haɗa shi da hydroxypropyl methyl cellulose na turmi na siminti sabo yana da kyakkyawan haɗin kai, kusan babu wani abin zubar jini.
3, Yawan ruwa da kuma buƙatar ruwan HPMC ya ragu da farko sannan ya ƙaru sosai.
4. Haɗa na'urar rage ruwa yana inganta matsalar ƙara buƙatar ruwa ga turmi, amma dole ne a sarrafa shi yadda ya kamata, in ba haka ba wani lokacin zai rage juriyar wargajewar turmi sabo a ƙarƙashin ruwa.
5. Akwai ɗan bambanci kaɗan a cikin tsari tsakanin samfuran ruwan siminti na gauraye da na HPMC da samfuran da babu komai a ciki, kuma babu bambanci kaɗan a cikin tsari da ƙanƙantawa tsakanin samfuran siminti da aka zuba da na siminti da aka zuba da iska. Samfurin ruwan siminti mai girman 28d yana da ɗan sassauƙa. Babban dalilin shine ƙara HPMC yana rage asarar da yaɗuwar siminti yayin zubar ruwa, amma kuma yana rage matakin ƙunƙurin siminti. A cikin aikin, a ƙarƙashin yanayin tabbatar da tasirin hana wargajewa a ƙarƙashin ruwa, yawan haɗuwa na HPMC yana raguwa gwargwadon iko.
6, ƙaraHPMCa ƙarƙashin ruwa ba ya watsa cakuda siminti, yana sarrafa adadin ƙarfin da ya dace, aikin gwaji ya nuna cewa rabon ƙarfin siminti a cikin ruwa da kuma samuwarsa a cikin iska shine kashi 84.8%, tasirin ya fi mahimmanci.
Lokacin Saƙo: Afrilu-25-2024