By mixing ratio test, strength test, deformation test and durability test, it is shown that the granulated copper slag may be used as fine aggregate in concrete after adding additives Bigger weight though it had, the copper slag concrete provided the same mechanical properties and durability as ordinary concret

By analyzing the concept of ZPD in terms of cognition,culture,social,education,and human theory,we can get implications in the aspects of "scaffold" metaphor,scene cognition,practice participation,good teaching and human cultivation.