1st of all....Concrete for sidewalks shall be laied on compacted base course layer (Min 15cm thick and 98% compaction) and solid sub-grade.....
2nd; the minimum thikness of concrete shall be 10cm....
You have to provide expansion joint @3 to 4m max and You have to provide a reinforcement mesh of...
I would like to konw what is the recommended % of shrinkage reinforcent in circular concrete tanks t=450mm(specially nearby the base slab)when the tank walls are bottom fixed.
BS8007 calls for 0.35% ......ACI350 valls for 0.45%. will it exceed 0.9%
In circular tanks (fixed at the bottom-in this case D=16m, H=5m), the main ring forces come from the water load acting on the walls (calculating the tension forces along the height of the wall using Portland Cement Association tables).....
A friend of mine (Dr. in engineering) says that the...
