Ngenkqubela eqhubekayo yokufudukela kwabantu ezidolophini, iya isanda inkunkuma yokwakha kwiminyaka yakutshanje, nto leyo eye yazisa ingxaki kwisebe lolawulo lweedolophu. Urhulumente uye waqonda ngokuthe ngcembe ukubaluleka kokulungiswa kobutyebi benkunkuma yokwakha; Ukusuka kwelinye imbono, inkunkuma yokwakha luhlobo lobutyebi. Emva komgca wokuvelisa izitena ze-honcha, unokuba yinto entsha yodonga olufutshane kumaxesha anamhlanje kwaye usebenzise ngokupheleleyo izibonelelo.

I-fly ash yeyona nto ingcolisa imo engqongileyo. E-China, imveliso ifikelela kumawaka eetoni, kwaye uninzi lwazo alusetyenziswanga, olungachithi nje izibonelelo, kodwa lunokubangela ukwanda kokungcoliseka kwendalo. Enyanisweni, i-fly ash ikwayinto efanelekileyo ekrwada yokwenza izitena. Emva komgca wokuvelisa izitena ze-honcha, inokuba yinto entsha eludongeni ngokufutshane kumaxesha anamhlanje, esetyenziswe ngokupheleleyo.

Ayisiyiyo kuphela inkunkuma yokwakha, uthuthu lwempukane, imisila, ukunyibilikiswa kwesinyithi kunye nezinye inkunkuma eqinileyo, umatshini wenkunkuma yokwakha weLei Shi Chengxin ongatshiyo unokuguqula inkunkuma ibe bubutyebi, kwaye “usana” oluvelisiweyo lukwasebenza kugcino lwamanzi, udonga, umhlaba, igadi kunye neminye imiba!