Teknụzụ akara nke gravel bụ usoro ihe owuwu nke dị obere nke ejiri iji guzobe ịrụ ọrụ elu okporo ụzọ. Ụzọ bụ isi bụ ibu ụzọ gbasaa ihe kwesịrị ekwesị nke ihe nkedo asphalt n'ụzọ ziri ezi site na ngwa pụrụ iche, wee kesaa gravel nwere nha nha nha nha na asphalt, wee tụgharịa ya ka ọ bụrụ ihe dịka 3 / 5 nke gravel urughuru nha na-agbakwunyere. Asphalt oyi akwa.
Nkà na ụzụ na-ekpuchi gravel nwere uru dị mma na-arụ ọrụ mgbochi na-adịghị mma na mmetụta mkpuchi mmiri dị irè, ọnụ ala dị ala, nkà na ụzụ dị mfe na-ewu ngwa ngwa, ya mere a na-eji nkà na ụzụ a eme ihe na Europe na United States na mba ndị ọzọ.

Teknụzụ mkpuchi gravel dabara adaba maka:
1.Okporo ụzọ mkpuchi mkpuchi
2. Mepụta okporo ụzọ ọhụrụ yi oyi akwa
3. New ọkara na ìhè okporo ụzọ elu oyi akwa
4. Nchegbu na-etinye oyi akwa nrapado

Uru nka na ụzụ nke akara gravel:
1. Mmetụta mkpuchi mmiri dị mma
2. Ndị na-eso ụzọ nwere ikike nrụrụ siri ike
3. Ọmarịcha mgbochi skid arụmọrụ
4. Ọnụ ala
5. Ngwa ngwa ewu ewu

Ụdị ihe nkedo eji eme akara gravel:
1. Diute asphalt
2. Emulsified asphalt/ gbanwetụrụ emulsified asphalt
3. gbanwetụrụ asphalt
4. Rubber ntụ ntụ asphalt