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 products, such as concrete, {TAIL ~ mortars} and {HEAD ~ grouts} 
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 products , such as concrete , { TAIL ~ mortars } and { HEAD ~ grouts }
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