In this case, a grain size of {TAIL ~ the granulated blast furnace slag} is preferably within a range of {HEAD ~ from about 20 to about 200 μm} 
In this case , a grain size of { TAIL ~ the granulated blast furnace slag } is preferably within a range of { HEAD ~ from about 20 to about 200 μm }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD