Nubwo ibicuruzwa byakoreshwa bite, nyuma yo kuyikoresha mugihe runaka, ibibazo binini kandi bito bizavuka byanze bikunze, bizagira ingaruka kumirimo yacu, nkuko bizagira ingaruka kubikoresho byo gushyushya bya bitum bizatera ibibazo nka kaburi kaburimbo idahwitse. Turabizi ko gukoresha ibikoresho byo gushyushya bitumn, iyubakwa rya karument rishyuha, ririmo imitwe myinshi yo kubaka, harimo n'ubwubatsi bwo kubaka, uburyo bwo kwagura umuhanda, guhitamo imashini zishinzwe imashini zo kubaka umuhanda ndetse no mu miterere y'ibikoresho byo kubaka umuhanda ndetse n'ubwiza bwo kubaka umuhanda. Izi nimpamvu nyamukuru zigira ingaruka kumuhanda hejuru yumuhanda.

Kugirango ufashe neza abakiriya babishyira mubikorwa, abanyamwuga bamenyekanisha ikoreshwa rya bitumen. Igorofa nigipimo cyingenzi cyo gupima ireme rya kaburimbo yo murwego rwohejuru. Umuhanda wa kashe uzongera kurwanya ibinyabiziga no gutera akazu k'ikinyabiziga, bizagira ingaruka ku buryo butaziguye umutekano no guhumurizwa no gutwara. Mugihe kimwe, bizarushaho kwiyongera kwangiza ibice by'imodoka n'amapine no kongera ibyo lisansi.