Re-advertisement: Eskom Holdings SOC Ltd (“Eskom”) hereby invites you to submit a quote for the following: 1 [one] ash water return pump, motor base 6 at Duvha Power Station. The scope of work details the reconstruction works at AWR Pumphouse: - Reconstruction of AWR pump motor base (2830mm x 1280mm x 230mm): • Take levels of the existing current setup (i.e concrete, steel base) in the presence of client’s representative and data survey report that has been analyzed by the contractor and signed; • Remove secondary steel base, all beams and hold down bolts from the concret; • off by a competent surveyor to the client; • Demolish the entire existing concrete base; • Break approximately 50mm into the existing concrete slab carefully not to damage the reinforcement; • Remove all concrete rubble and make clean; • Wire-brush the exposed existing reinforcement on the existing slab to remove all dirt; • Insert formwork to receive and mold reinforced concrete. Concrete height to be that decided upon by the client after. Make concrete chamfer of 30 x 30mm; • Install rebars of similar diameter as existing, spaced at 150mm center to center; • Apply a concrete bonding agent (Sika Latex or similar approved product) on the existing slab prior casting of concrete; • Cast in fully threaded 6 M20 HD bolts grade 8.8, which must be drilled into the existing slab by 75mm, ensure they align with the holes in the steel base and secure. Bolts to protrude at least by 50mm from the steel base; • Cast 30MPa concrete for pump motor base, ensure concrete top surface is levelled vertically and make good finishes. Cure and protect the new concrete according to SANS 1200G with the prescribed grade of 30MPa with 19mm size of aggregate, with 50mm concrete cover; • Concrete may not be placed before the supervisor has given permission in writing. A minimum written notice period of 24 hours prior to pouring is required for each part of the structure. Delivery address: Duvha Power Station, Off Witbank-Bethal Road, Witbank 1035. (Offre №93563886fr)