Tsiku Lolemba:5, Feb,2024
Kusankhidwa kwa Admenti
. Kwa konkriti ndi zofunikira zapadera zolimbikitsira, gwiritsani ntchito simenti yofulumira kapena kuwonjezera usica fume; Mukamagwiritsa ntchito chingwe cholembera konkriti chomwe chimafuna kusokonekera, ndipo konkrizira yayikulu ikatha kuchepetsa kutentha kwa silika, kuchuluka kwa silika kuyenera kuchepetsedwa ndipo phulusa phulusa liyenera kuwonjezeredwa. Nthawi yoyambirira itafika konkriti yosakanizidwa ndi mankhwala osokoneza bongo ogwiritsira ntchito madzi ndi nthawi yayitali kuposa ya konkriti wamba. Kuchuluka kwakukulu, nthawi yayitali.
. Onjezani kuchuluka kwa mpweya mpaka konkriti, ndipo ngati mpweya ulitho ndi 1%, mphamvu zidzachepa ndi 5%. Chifukwa chake, pokonzekera konkriti wambiri, mpweya wabwino uzikhala pafupifupi 3%, ndipo mpweya wabwino uyenera kugwiritsidwa ntchito mosamala. Komabe, kugwiritsa ntchito mankhwala osokoneza bongo kumakhala ndi zabwino zambiri kuposa zovuta zomwe zimapangitsa kunkriti monga anti-freen ndi anti-ovomerezeka.
. Pakumanga, antifar antifar ophatikizika ndi kuchepetsa madzi, okonda mpweya, oletsa kufooka komanso zigawo zoyambirira-zoyambirira zimagwiritsidwa ntchito. Ntchito yayikulu ya compoitite yoyambirira, mphamvu ya Abitor, imachepetsa madzi osakanikirana kwambiri mu simenti hydration, motero kuchepetsa kuzizira. Mtumiki wophatikizika wa mpweya umatulutsa thovu lalikulu la ma concete, omwe amayatsa mphamvu yowonjezereka ya kuzizira konkriti, amachepetsa nthawi yozizira, ndikulola konkriti kupitiriza kukhala ndi kutentha kosasangalatsa. Chigawo choyambirira-choyambirira mu mpweya wopangidwa ndi mpweya chimathandizira kusakaniza ndikulimbitsa kumayambiriro, kukwaniritsa zoopsa zoyambirira komanso kupewa kuwonongeka koyambirira. Nitrate, nitrites ndi carbonates ndi zigawo za Antifatikulu ndipo sizoyenera kuphatikizika kwa ma andireti. Konkriti pakumwa madzi ndi ukadaulo wa zakudya sagwiritsa ntchito zigawo za antifarazi zokhala ndi chromium mchere woyambirira, nitrite ndi nitrate. Zida za antifuliro zomwe zimakhala ndi urea sizigwiritsidwa ntchito pa nyumba ndi nyumba zamalonda.
Post Nthawi: Feb-06-2024
