Browse Forums General Discussion 1 Jul 14, 2016 6:32 pm Hi, Just wondering the what N25 is on steel reinforcing, is this suitable for medium to heavy loads? Re: Reinforced Concrete 3Jul 15, 2016 9:04 am Check your engineering Notes -Normal Concrete..N25 Strength Mpa: 20 Aggregate mm: 80 Slump mm eg N (25:20:80) -Nominal Steel Reinforcement - N- Denotes Deformed bars D500N: N24-24mm diam. rebars Note (1) N24 measured Nominal X-Section Area (452 mm2) equals 4-N12 Nominal X-section Area (4x 113mm2) approx A common mistake I see on site where Steel fixers substitute missing N24- bars for 2 x N12 bars...WRONG THE X-SECTIONAL AREAS AREN'T THE SAME Tables here http://www.arcreo.com.au/reinforcing-bar Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs You are fine. The concrete is never going to explode. Worse case scenario is that it develops a crack from different rates of expansion but hopefully it's got some… 5 4509 To my understanding early saw cuts are to control shrinkage cracks, so doing them now would be pointless. Control joints may reduce ugly cracking during periods of soil… 3 7427 |