Kodi chodabwitsa cha efflorescence mumatope chikugwirizana ndi hydroxypropyl methylcellulose?

Chodabwitsa cha efflorescence ndi: konkire wamba ndi silicate, ndipo ikakumana ndi mpweya kapena chinyezi pakhoma, ion silicate imakumana ndi hydrolysis reaction, ndipo hydroxide yopangidwa imaphatikizana ndi ayoni zitsulo kupanga hydroxide yokhala ndi kusungunuka kochepa (mankhwalawa ndi Alkaline), kutentha kukakwera, nthunzi yamadzi imasanduka nthunzi, ndipo hydroxide imachokera ku khoma. Ndi kutuluka kwa madzi pang'onopang'ono, hydroxide imagwera pamwamba pa simenti ya konkire. M'kupita kwa nthawi, utoto wokongoletsera woyambirira Kapena utoto ndi zinthu zina zimakwezedwa ndipo sizimamatiranso khoma, ndipo kuyera, kupukuta, ndi kupukuta kudzachitika. Njirayi imatchedwa "pan-alkali". Chifukwa chake, si ubiquinol yoyambitsidwa ndi hydroxypropyl methylcellulose.

Makasitomala ananena chodabwitsa: grout sprayed iye anapanga adzakhala poto-alkali pa khoma konkire, koma sadzaonekera pa khoma njerwa anawotcha, zomwe zimasonyeza kuti asidi silicic mu simenti ntchito pa khoma konkire Mchere wambiri (mwamphamvu kwambiri). mchere wamchere). Efflorescence chifukwa cha evaporation ya madzi omwe amagwiritsidwa ntchito mu spray grouting. Komabe, palibe silicate pakhoma la njerwa zowotchedwa ndipo palibe efflorescence yomwe idzachitika. Chifukwa chake, kupezeka kwa efflorescence sikukhudzana ndi kupopera mbewu mankhwalawa.

Yankho

1. Simenti ya silicate ya simenti yoyambira imachepetsedwa.

2. Gwiritsani ntchito anti-alkali back coating agent, yankho limalowa mwala kuti litseke capillary, kotero kuti madzi, Ca (OH) 2, mchere ndi zinthu zina sangathe kulowa, ndikudula njira ya pan-alkaline phenomenon.

3. Pofuna kupewa kulowerera kwa madzi, musawaze madzi ambiri musanamangidwe.

Chithandizo cha pan-alkaline chodabwitsa

Mwala efflorescence kuyeretsa wothandizira pamsika angagwiritsidwe ntchito. Choyeretsera ichi ndi madzi otuluka opanda mtundu opangidwa ndi zinthu zosungunulira zosakhala ndi ma ionic. Zimakhala ndi zotsatira zina pakuyeretsa kwa miyala yachilengedwe. Koma musanagwiritse ntchito, onetsetsani kuti mwapanga chipika chaching'ono choyesera kuti muyese zotsatira zake ndikusankha kugwiritsa ntchito.