Group G - Glass-Fiber-Reinforced Concrete Products (GFRC)
Notes to Specifiers
Categories in Product Groups A, B, and C are listed in ascending order. For example, a plant certified to produce products in Category C4 is automatically certified to produce products in the preceding Categories C1, C2, and C3. However, a plant certified to produce products in Category C2 is certified for Category C1 but is not certified for Categories C3 or C4.
In addition, Group BA or CA supersedes Group B or C in the same category. For example, a plant certified to produce products in Category C2A is certified for Categories C1, C1A, and C2, but it is not certified for Categories C3, C3A, C4, or C4A.
A product group and category should be determined and shown in the specifications for each type of precast concrete product used in a project. This will allow more than one precaster to submit bids on individual products. For example, a precaster with expertise in producing prestressed piling (with certification in C2) could submit a bid for only piles on a project that also included prestressed double-tees. Similarly, a producer with certification in C4 could submit a bid for the double-tees that either included or excluded the piling.
Important
Specify the most appropriate product group and category for the project. Do not select a higher category than necessary. Similarly, do not add “A” to a listing when it is not necessary to meet project requirements. Selecting an inappropriate group or category could restrict the number of available bidders.