Adjoining elements Fixings: Provide fixings for adjoining elements. If required, provide temporary support to the adjoining elements during concreting, to prevent movement. Protection General: Grease threads. Protect embedded items against damage. Compatibility: Provide inserts, fixings and embedded items that are compatible with each other, with the reinforcement and with the documented concrete mix and surface finish. Corrosion: In external or exposed locations, galvanize anchor bolts and embedded fixings. Structural integrity Position: Fix cores and embedded items to prevent movement during concrete placement. In locating cores, fixings and embedded items, displace but do not cut reinforcement, and maintain documented cover to reinforcement. Isolation: Isolate embedded items to prevent water tracking to concrete that provides minimum cover to reinforcement. Tolerances General: Maximum deviation from correct positions: Anchor bolt groups for structural steel: To AS/NZS 5131. Cores and embedded items generally: 10 mm. Other fixing bolts: 3 mm. Finish Membrane support: Wood float finish or equivalent. Installation General: Lay over the base or subgrade and screed to the required level. Surface flatness tolerance Maximum deviation: 6 mm from a 3 m straightedge. Placing Horizontal transport: Use suitable conveyors, clean chutes, troughs, hoppers or pipes. Methods: Avoid segregation and loss of concrete, and minimise plastic settlement. Maintain a nominally vertical and plastic concrete edge during placement. Horizontal elements: Place concrete in layers not more than 300 mm thick. Compact the following layer into previous layer before previous layer has taken initial set. Compaction Methods: Use immersion and screed vibrators accompanied by hand methods as appropriate to remove entrapped air and to fully compact the mix. Vibrators: Do not allow vibrators to contact set concrete, reinforcement or items including pipes and conduits embedded in concrete. Do not use vibrators to move concrete along the formwork. Avoid causing segregation by over-vibration. Placing records Log book: Keep on site and make available for inspection a log book recording each placement of concrete, including the following: Date. Specified grade and source of concrete. Slump measurements. The portion of work. Volume placed. Rain Protection: During placement and before setting, protect the surface from damage. Time between adjacent placements Minimum time delay: As documented in the Minimum time delay schedule.
Adjoining elements Fixings: Provide fixings for adjoining elements. If required, provide temporary support to the adjoining elements during concreting, to prevent movement. Protection General: Grease threads. Protect embedded items against damage. Compatibility: Provide inserts, fixings and embedded items that are compatible with each other, with the reinforcement and with the documented concrete mix and surface finish. Corrosion: In external or exposed locations, galvanize anchor bolts and embedded fixings. Structural integrity Position: Fix cores and embedded items to prevent movement during concrete placement. In locating cores, fixings and embedded items, displace but do not cut reinforcement, and maintain documented cover to reinforcement. Isolation: Isolate embedded items to prevent water tracking to concrete that provides minimum cover to reinforcement. Tolerances General: Maximum deviation from correct positions: Anchor bolt groups for structural steel: To AS/NZS 5131. Cores and embedded items generally: 10 mm. Other fixing bolts: 3 mm. Finish Membrane support: Wood float finish or equivalent. Installation General: Lay over the base or subgrade and screed to the required level. Surface flatness tolerance Maximum deviation: 6 mm from a 3 m straightedge. Placing Horizontal transport: Use suitable conveyors, clean chutes, troughs, hoppers or pipes. Methods: Avoid segregation and loss of concrete, and minimise plastic settlement. Maintain a nominally vertical and plastic concrete edge during placement. Horizontal elements: Place concrete in layers not more than 300 mm thick. Compact the following layer into previous layer before previous layer has taken initial set. Compaction Methods: Use immersion and screed vibrators accompanied by hand methods as appropriate to remove entrapped air and to fully compact the mix. Vibrators: Do not allow vibrators to contact set concrete, reinforcement or items including pipes and conduits embedded in concrete. Do not use vibrators to move concrete along the formwork. Avoid causing segregation by over-vibration. Placing records Log book: Keep on site and make available for inspection a log book recording each placement of concrete, including the following: Date. Specified grade and source of concrete. Slump measurements. The portion of work. Volume placed. Rain Protection: During placement and before setting, protect the surface from damage. Time between adjacent placements Minimum time delay: As documented in the Minimum time delay schedule.
0310p_CONQOR_B52_HYBRID_HYDROGEL_in_concrete_combined.docx