Asphal osakanikirana zida zamagetsi zimachita gawo lofunikira kwambiri pamakampani opanga mseu. Zipangizozi zimatulutsa mpweya wotayidwa ndi fumbi ndi zoopsa zina za pagulu pakupanga. Pofuna kuonetsetsa kuti chilengedwe sichikukhudzidwa, wopanga ayenera kutenga njira zoyenera kuzilamulira izi. Nkhaniyi ifotokoza njira zowongolera fumbi mu phula kusakanikirana zida.

Zida zosakanikirana za phula zimatulutsa chowongoletsera chambiri cha fumbi pakugwiritsa ntchito. Kuchepetsa kuchuluka kwa fumbi, titha kuyamba ndi kusintha kwa ziweto zosakanikirana kwa phula. Kudzera mu kusintha kwamakina onse, titha kukulitsa kulondola kwa chikhomo chilichonse cha makinawo, ndikuyesera kupanga zida zosindikizidwa mokwanira panthawi yosakanikirana, kuti fumbi litha kuwongolera zida zosakanikirana. Kuphatikiza apo, ndikofunikiranso kumvetsera mwatsatanetsatane za kukwaniritsa zida za zida ndikumvetsera kuwongolera fumbi kumasefukira mu ulalo uliwonse.
Kuchotsa kwa mphepo ndi njira imodzi ya njira zowongolera fumbi mu phula losakanikirana. Njirayi ndi njira yachikale. Amagwiritsa ntchito sonclone ya dziwe lochotsa fumbi. Komabe, popeza malo otola mambo wakale amenewa amatha kuchotsa dothi lalikulu, sangathe kukwaniritsa chithandizo cha fumbi. Komabe, anthuwo wapanganso kusintha kwa osonkhetsa mafunde amphepo. Kudzera kuphatikiza magawo angapo a chimphepo cham'madzi azosiyanasiyana, chithandizo chamankhwala osiyanasiyana chimatha kumaliza.
Kuphatikiza pa njira ziwiri zomwe zili pamwambazi pamwambapa, zida za phula zosakanikirana zopendekera zitha kutengera chonyowa fumbi ndikuchotsa fumbi. Kuchotsa fumbi kumalikola kwa madzi okwanira mafumbi ndipo amatha kuchotsa fumbi lomwe limapangidwa panthawi yosakanikirana. Komabe, popeza madzi amagwiritsidwa ntchito ngati zopangira zochotsa fumbi, zimayambitsa kuipitsidwa kwamadzi. Thumba lochotsa fumbi ndi njira yabwino yochotsera fumbi mu zida za phula. Ndi ndodo yochotsa fumbi yoyenera yochizira fumbi laling'ono.