Pilbara Concrete DATE August 2014 REFERENCE Tyrone Paraburdoo – Rio Tinto Construction Grid set-out for Holding Down Bolt Sets in Concrete. Tie in Construction Grid to existing Crusher Infrastructure from provided plans and field observations. Provide Vertical datum locations for construction. By dsmith_wp_admin|2023-08-14T06:29:01+00:00August 1st, 2014|Rio Tinto|0 Comments