1. Nnabata na ọkwa ala, nyocha nke ihe, igwe na akụrụngwa. Lelee larịị nke oyi akwa isi ma chọọ ihe ngosi niile iji mezuo ụkpụrụ ihe owuwu; lelee isi iyi, oke, ogo, ọnọdụ nchekwa, wdg nke akụrụngwa; lelee arụmọrụ na nha nha nke akụrụngwa ihe owuwu iji hụ na iji ọrụ eme ihe.

2. Nnwale dina ngalaba ule, chọpụta ihe ngosi dị iche iche, wee mepụta atụmatụ ihe owuwu. Ogologo ntinye nke ngalaba ule kwesịrị ịbụ 100M-200M. N'oge ịtọgbọ, chọpụta nchikota nke igwe, ọsọ ngwa ngwa nke igwekota, ọnụọgụ asphalt, ọsọ paving, obosara na ihe ngosi ndị ọzọ nke paver, wee mepụta atụmatụ ihe owuwu zuru oke.

3. Ogbo ihe owuwu iwu, gụnyere ịgwakọta, paving, rolling, wdg nke ngwakọta. Gwakọta asphalt n'ebe a na-agwakọta asphalt, jiri nnukwu gwongworo na-ekpofu ihe na-ebuga ngwakọta ahụ n'ebe a chọrọ, ma gbasaa ngwakọta ahụ na ntọala nke dabara ọnọdụ ahụ. Mgbe emechara ihe mgbochi ahụ, mebie pavement nke asphalt. Lezienụ anya na ịkwa akwa mgbe ị na-akpụ akpụ. nrụgide.

4. Mgbe emechara ihe mgbochi, a na-edobe pavement asphalt ma nwee ike meghee okporo ụzọ 24 ka awa gachara. A ga-ekewa pavementi asphalt ahụ a kpụrụ akpụ iji gbochie ndị mmadụ na ụgbọ ala ịbata, enwere ike imepe ya ka ejiri ya rụọ ọrụ mgbe awa 24 gachara. Okpomọkụ nke asphalt ahụ emere ọhụrụ dị oke elu. Ọ bụrụ na ekwesịrị iji ya mee ihe tupu oge eruo, fesa mmiri ka ọ dị jụụ. Enwere ike iji ya naanị mgbe okpomọkụ ruru n'okpuru 50 ℃.