In the aforementioned parent patent applications the present inventors have found that once it is ground to a powder of suitable fineness, the glass fiber waste discussed above can effectively function as a reactive pozzolanic admixture for use in portland cement based building materials and {HEAD ~ products}, such as {TAIL ~ concrete}, mortars and grouts 
such as
In the aforementioned parent patent applications the present inventors have found that once it is ground to a powder of suitable fineness , the glass fiber waste discussed above can effectively function as a reactive pozzolanic admixture for use in portland cement based building materials and { HEAD ~ products } , such as { TAIL ~ concrete } , mortars and grouts
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