(1) Iithayile zefiber zeglasi zihlala zisetyenziselwa uphahla kunye nethambeka le-20 ~ 80 degrees.

(2) Ukwakhiwa komgangatho wodaka lwesamente olusisiseko

Iimfuno zokhuseleko kulwakhiwo lwethayile ye-asphalt

(1) Abasebenzi bokwakha abangena kwisiza sokwakha kufuneka banxibe izigcina-ntloko zokhuseleko.

(2) Akuvumelekanga ngokungqongqo ukusebenza emva kokusela, kunye nabasebenzi abane-hypertension, i-anemia kunye nezinye izifo zithintelwe ngokungqongqo ukusebenza.

(3) Ngexesha lokwakhiwa kwendawo ephakamileyo, kuya kubakho indawo ekhuselekileyo nethembekileyo, kwaye abasebenzi bokwakha kufuneka babophe kwaye baxhome ibhanti lokhuseleko kuqala.

(4) Abasebenzi bokwakha uphahla oluthambekileyo kufuneka banxibe izihlangu ezithambileyo, kwaye abavumelekanga ukuba banxibe izihlangu zesikhumba kunye nezihlangu eziqinileyo.

(5) Ukuphumeza ngokungqongqo iinkqubo ezahlukeneyo zolawulo lokhuseleko kunye nemilinganiselo kwisiza sokwakha.

(6) Ulwakhiwo luya kwenziwa ngokungqongqo ngokungqinelana neenkqubo zokusebenza zokhuseleko lwemveliso kwisiza sokwakha.

(7) Kufuneka kubonelelwe ngezikafula, iminatha yokukhusela kunye nezinye izixhobo.