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DOE OSTI · 1880616

SDU 7 Shotcrete Sample Characterization

Langton, Christine A.·Hill, Katie A.
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Abstract

On 12/26/2021, pieces of the outer layer of shotcrete (Layer 8) fell off bottom of SDU7. The affected area was about 5 ft by 40 ft. The non-conforming condition was documented in 2021-NCR-05-0042 on 12/27/2021. Subsequently, additional shotcrete sections delaminated. Savannah River National Laboratory was requested to characterize the delaminated shotcrete by Saltstone Engineering in Technical Assistance Request U-TAR-Z-00003, Rev. 0. After the initial collection of delaminated pieces of Layer 8 on January 7 , 2022, additional questions arose related to the bond integrity between SDU 7 Layers 6, 7, and 8 and through layer cracking. As a result, two additional sampling efforts were conducted which resulted in additional characterization.

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36 MATERIALS SCIENCE

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Langton, Christine A., Hill, Katie A.. 2022-07-01. SDU 7 Shotcrete Sample Characterization. https://doi.org/10.2172/1880616

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36 MATERIALS SCIENCE↗