Tsiku Lotumiza:5, Feb,2024
Kusankha konkriti zosakaniza:
(1) Wothandizira wochepetsera madzi komanso wogwira ntchito kwambiri: Popeza kuti madzi amadzimadzi a konkire amasinthidwa makamaka ndi wothandizira kuchepetsa madzi, mlingowu umakhala ndi 1% mpaka 2% ya kulemera kwa simenti; kwa konkire yokhala ndi zofunikira zapadera zoyambira mphamvu, gwiritsani ntchito simenti yokhazikika mwachangu kapena Onjezani fume la silika; pogwiritsira ntchito silika fume kwa konkire yomwe imafuna kuvala kukana, ndipo pamene konkire yochuluka kwambiri yamphamvu kwambiri imayenera kuchepetsa kutentha kwa hydration, kuchuluka kwa simenti kuyenera kuchepetsedwa ndipo phulusa la silika kapena phulusa la ntchentche liyenera kuwonjezeredwa. Nthawi yoyamba yoyika konkire yosakanikirana ndi wothandizila kwambiri wochepetsera madzi ndi yaitali kuposa konkire wamba. Kuchuluka kwachulukidwe, kumatalikirapo nthawi yoyika koyamba.
(2) Air-entraining agent ndi air-entraining water-conduction agents: Zimafunika kuti zikhale ndi chisanu kwambiri komanso zimakhala zolimba kwambiri, ndipo ziyenera kusakanikirana ndi mpweya wodutsa mpweya kapena mpweya wochepetsera madzi. Onjezani kuchuluka kwa mpweya ku konkire, ndipo ngati mpweya ukuwonjezeka ndi 1%, mphamvu idzachepa ndi pafupifupi 5%. Choncho, pokonzekera konkire yamphamvu kwambiri, mpweya uyenera kukhala pafupifupi 3%, ndipo wothandizira mpweya ayenera kugwiritsidwa ntchito mosamala. Komabe, kugwiritsa ntchito mankhwala opangira mpweya kumakhala ndi ubwino wambiri kusiyana ndi zovuta pa ntchito ya konkire monga anti-freeze ndi anti-permeability.
(3) Kusankha antifreeze: Mukamagwiritsa ntchito konkire yamphamvu kwambiri m'nyengo yozizira, choyamba sankhani antifreeze yomwe ili yoyenera kutentha komwe kumayembekezeredwa panthawi yothira. Panthawi yomanga, antifreeze yophatikizika yokhala ndi kuchepetsa madzi, kulowetsedwa kwa mpweya, anti-freezing ndi zigawo zoyambirira za mphamvu zimagwiritsidwa ntchito. Ntchito yaikulu ya composite oyambirira-mphamvu antifreeze ndi kuchepetsa kusakaniza kumwa madzi ndi kuchepetsa kwambiri owonjezera madzi aulere mu simenti hydration, motero kuchepetsa kuchuluka kwa kuzizira. The gulu mpweya-entraining wothandizila amapanga ambiri chatsekedwa yaying'ono thovu mu konkire mwatsopano, amene amachepetsa voliyumu Kukula mphamvu ya kuzizira pa konkire, amachepetsa ndi kuzizira, ndipo amalola konkire kupitiriza hydrate pa kutentha zoipa. Chigawo choyambirira cha mphamvu mu mpweya-entraining wothandizila imathandizira hydration ya osakaniza ndi kulimbitsa izo mwamsanga, kukumana ndi mphamvu yovuta mwamsanga ndi kupewa oyambirira kuzizira kuwonongeka. Nitrates, nitrites ndi carbonates ndi antifreeze zigawo zikuluzikulu ndipo si oyenera galvanizing ndi kulimbikitsa konkire admixtures. Konkire kwa madzi akumwa ndi uinjiniya chakudya sadzagwiritsa ntchito antifreeze zigawo zikuluzikulu munali chromium mchere oyambirira mphamvu wothandizira, nitrite ndi nitrate. Antifreeze okhala ndi urea sayenera kugwiritsidwa ntchito m'nyumba zogona komanso nyumba zamalonda.
Nthawi yotumiza: Feb-06-2024
