I. permeability mwala
Pokambirana mmene kuchotsa mawanga simenti mwala, choyamba tiyenera kufalitsa chimodzi mwa zinthu zofunika kwambiri mwala, ndicho permeability.Makhalidwe a mwalawa ndi osiyana kwambiri ndi a ceramic ndi magalasi.Ngati madzi achikuda agwiritsidwa ntchito pochiza mawanga a simenti, ayenera kusamala kwambiri kuti awone ngati alowa ndikutulutsa mitundu yosiyanasiyana.Oyeretsa ena amaloŵa mwa nsangalabwi, n’kusiya utoto wosasinthika.Makamaka kuwala kwa jazi woyera, Guangxi woyera ndi mankhwala ena.
II.Chotsukira simenti
Nsalu za nsangalabwi zimaipitsa simenti, motero tikulimbikitsidwa kugwiritsa ntchito chotsukira chomwe sichimakhudzidwa ndi kashiamu carbonate yopangidwa ndi nsangalabwi: biological simenti yotsukira.Kugwiritsa ntchito biological simenti kuyeretsa wothandizila ndi motere: 1. Pakuti ambiri fumbi simenti, mukhoza mwachindunji misozi nsangalabwi ndi biological simenti kuyeretsa wothandizila pa nsalu, ndiye kunyowetsa nsalu ndiyeno misozi yoyeretsa wothandizila kumamatira pamwamba nsangalabwi.2. Kuti simenti yokulirapo pamwamba pa nsangalabwi, biological simenti yotsukira angagwiritsidwe ntchito kupopera mwachindunji, kudikira kwa nthawi ndithu, kudikira simenti pamwamba pa nsangalabwi kufewetsa, ndiyeno kusamba ndi madzi kapena kupukuta ndi nsalu. .Ngati wosanjikiza wa simenti wapukuta ndi nsalu, nsalu yonyowa yoyera iyenera kugwiritsidwa ntchito kupukuta kamodzi.
III.njira ya scraper
Gwirani pamwamba pa nsangalabwi ndikuyikapo ndi chopukutira kuchotsa simenti.
IV.wapadera kuyeretsa wothandizila mwala
Mtundu uwu wa mankhwala akhoza kuwola organic kuipitsa pa mwala ndi kuchotsa pamwamba zoteteza wothandizira.Ngati ndi kotheka, kuyeretsa wothandizira akhoza kusakaniza ndi decontamination ufa, kuti kutalikitsa anachita nthawi ya pawiri ndi kuyamwa banga mu mankhwala phala.

Musanagwiritse ntchito pawiri, yesani madera ang'onoang'ono osawoneka bwino monga ngodya ndikuwonetsetsa kuti pamwamba pa miyalayo sichikuphimbidwa ndi zizindikiro zamaluwa zakuda.Ndikosavuta kuchotsa zokhwasula pang'ono.Pali mafuta ambiri opukutira pamsika.Komabe, akamagwiritsa ntchito ufa wopukutira, ambiri amayenera kugwiritsa ntchito makina opukutira kapena makina opukutira amodzi.
V. kupukuta njira
Njirayi ikhoza kukhala yovuta, choncho akulangizidwa kuti iyenera kuthandizidwa ndi akatswiri.