This standard specifies the scope of application of concrete compressive strength test methods for extrusion molding machines to produce hollow slabs, test piece production equipment, test piece production, test piece maintenance, compressive strength testing and test result evaluation. This standard is applicable to the compressive strength test of ordinary extra-dry hard concrete for extruded hollow slabs.
JG/T 3023-1995 history
2018JG/T 520-2018 Test method for compressive strength of extruded concrete
1995JG/T 3023-1995 Test method of concrete compressive strength for extrution hollow cored slab
JG/T 3023-1995 Test method of concrete compressive strength for extrution hollow cored slab was changed to JG/T 520-2018 Test method for compressive strength of extruded concrete.