B / section
7 / Page
17-2 / DATE
April 25, 2013
The following policy is applicable for listing of aggregate sources in Bulletin 14:
A. After testing of a qualification sample is completed, a copy of the test report is sent to the DME/ DMM. This report includes a statement as to whether or not the material has met the appropriate specifications. When relevant, revised detailed statistics on test results will also be sent.
B. After reviewing the results, as well as any pertinent field data, the DME/DMM is to send a letter to the Laboratory Testing Section recommending acceptance or non-acceptance of the material. Upon receipt, the LTS will issue a letter to the producer informing him as to whether or not his material will be listed in Bulletin 14.
Listing and Sampling of Gradations other than No. 9, No. 8, No. 57, and No. 2A Coarse Aggregate and Type A, B, and C Fine Aggregate in Bulletin 14
The following sampling and Bulletin 14 listing criteria will be used for coarse and fine aggregate materials, as noted below:
1. If a source is approved for type A coarse aggregate use, no sample of No. 1, No. 3, No. 5, No. 67, or No. 7 size material needs to be submitted to the LTS for evaluation and approval. If a source is approved for No. 8 coarse aggregate, no samples of No. 89 size material needs to be submitted. If a source is approved for No. 9 coarse aggregate, no samples of No. 10 size material needs to be submitted. If a source is approved for No. 2A coarse aggregate, no samples of No. OGS material need to be submitted for evaluation and approval. The DME/DMM needs to only check the gradation of the material in question, and if the DME/DMM is then satisfied, the material type will be approved for use upon submission of a revised Form TR-430A to the LTS.
2. If a fine aggregate source is approved for Type A use, no samples of Type C fine aggregate need to be submitted to the LTS. The District needs only check the gradation; and if they are satisfied, the mortar sand will be automatically approved for use. If the District so desires, Type C fine aggregate will be listed in Bulletin 14 upon receipt of a revised Form TR-430A to the LTS.
3. For 2RC material, if a source is an approved Type A, B, or C coarse aggregate source, no samples need to be sent into the LTS. The DME/DMM needs to only check the gradation of the material in question, and if the DME/DMM is then satisfied, the material type will be approved for use upon submission of a revised Form TR-430A to the LTS. If the 2RC material is not from an approved aggregate source already listed in Bulletin 14, it must be submitted to the LTS for initial qualification and then every other year for requalification.
4. For Rock Lining material, if a source is an approved Type A coarse aggregate source, no samples need to be sent into the LTS. The DME/DMM needs to only check the gradation of the material in question, and if the DME/DMM is then satisfied, the material type will be approved for use upon submission of a revised Form TR-430A to the LTS. If the Rock Lining material is not from an approved aggregate source already listed in Bulletin 14, it must be submitted to the LTS for initial qualification and then every other year for requalification. When submitting Rock Lining Samples, R-3 rock may be submitted for testing. If the sample passes, the source will be approved for all sizes of Rock Lining.
If you have any questions, please contact the Bureau of Project Delivery, Laboratory Testing Section at (717) 787-2489.
April 2014 Edition