Kodi ma cellulose amagwiritsidwa ntchito bwanji?

Cellulose ether ipitilira nthawi yofikira pa simenti kapena matole, kuchedwetsa kusinthana kwa simenti kép, makamaka kusinthika kwa malo ogwiritsira ntchito matope ndi konkriti.

Nthawi zambiri, kuchuluka kwa cellulose ether, nthawi yayitalinso kukhazikitsa matope, komanso zodziwikiratu za Mphamvu za hydration. Cellulose ether imatha kuchedwetsa hydration ya michere yofunika kwambiri ya tricalcium alumate (C3A) ndi ma tracamuum slika (ma C3s) mu simentics siyofanana. Cellulose ether makamaka imachepetsa kuchuluka kwa ma C3S pakuthamangira, pomwe pa C3A-kachitidwe ka maso, kumapititsa nthawi yolowera.

Zoyesanso zina zidawonetsa kuti ethel ether yoletsa kuwonongeka kwa C3A ndi C3 Crystallization alumuum ndi calcium hydroxide pa c3s tinthu tating'onoting'ono. Weyer el al. anapeza kuti kuchuluka kwa zolowetsa DS kunali chinthu chachikulu chomwe chikukhudza simenti hmenti, ndipo ma ds ang'onoang'ono kwambiri, odziwikiratu a CRARDET CRAment anali. Pa makina a cellulose ether ether hydration.

Sliva et al. Kukhulupirira kuti cellulose ether zidawonjezera mafayilo a pore ndikulepheretsa kuchuluka kwa ion. Komabe, kutsanulira kutsanuna. anapeza kuti ubale pakati pa ma cellulose ether stanter simenti ndi simenti slurry usclence sanalidziwike. Schmitz et al. anapeza kuti mamasukidwe a cellulose ehal anali osakhudza mphamvu hydrate kinetics.

Thirchez adapezanso kuti ma cellulose ether anali okhazikika kwambiri pansi pa mikhalidwe ya alkaline ndi kuchedwa kwa simenti sangathe kuchitika chifukwa cha kuwonongeka kwa cellulose ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether. Adsoropption ikhoza kukhala chifukwa chenicheni cellulose elelul emerdet cement, zowonjezera zambiri zopangidwa ndi simenti tiyime tinthu tating'onoting'ono, zomwe zimalepheretsa kupusa kwa simenti. ThiranichCz et al. anapeza kuti mphamvu ya Adsorption Kuchuluka kwa zinthu hydrate ndi ether ether, kuwonekeratu kuchedwa.

Nthawi zambiri amakhulupirira kuti cellulose ethel mamolekyu okonda pazinthu hydrate zopangidwa ndi zinthu zoyambirira za mchere.