Pansi pansi-kusunga bwino zachilengedweKuyika pansi kotetezedwa kwachilengedwe, komwe kumadziwikanso kuti konkriti wonyezimira, pamwamba pa phala la simenti lomwe limakutidwa ndi phala la simenti, zophatikizika ndi simenti zomangika wina ndi mnzake kuti apange pore yofanana.
Kusamalira zachilengedwe bwino za mtundu permeable chilengedwe chitetezo pansi, amatchedwanso "porous konkire", ndi pamwamba pa akaphatikiza coarse yokutidwa ndi wosanjikiza woonda wa simenti phala, akaphatikiza ndi simenti phala womangidwa kwa wina ndi mzake kupanga yunifolomu kugawa mabowo. m'chisa cha uchi, kotero imakhala ndi mpweya wokwanira, kutsekemera kwa madzi ndi mawonekedwe opepuka, kukweza bwino zochitika zamadzimadzi ndikuchotsa bwino kuopsa kwa kuipitsidwa kwa chilengedwe monga mafuta opangira pansi. Ndi chinthu chabwino kwambiri chopangira kuti chisungidwe bwino ndi chilengedwe. Kuyika pansi kokwanira kwamtundu kumagwiritsidwa ntchito pamapando, mabwalo a anthu, malo oimika magalimoto otseguka, misewu ya m'mapaki, misewu ya anthu oyenda pansi, misewu yanyumba ndi yapabwalo la anthu ndi zina zotero.
