Tababarka ayaa ay ardaydu ku qaateen sida loo hubiyo tayada ciida, jayga/garriga (aggregates), daamurka iyo shubka loo isticmaalo dhismaha waddooyinka.
Tababarka oo socday muddo laba cisho ah waxa ardayda siinayay barahooda Eng. Libaan Cali Nuur iyo Engineerada waaxda laboratory-ga hay’adda waddooyinka.
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