Low pH Concrete and Grout for Use in the US High-Level Waste Repository: Part I
- ORNL
The current baseline plan for the Yucca Mountain (YM) repository project (YMP) uses steel structures to stabilize the disposal drifts that are collectively over 65 kilometers in length. However using cementitious materials and application techniques, the potential exists to reduce the underground construction cost by 100's of millions of dollars, accelerate construction, and improve the repository's performance. this development program was designed to meet the economic and engineering properties of the appropriate cementitious materials to build out these tunnels. This work supposes that cementitious liners and inverts (the flat bedding placed in the drifts upon which the rails are laid) will be used ultimately in the second-generation repository design. This paper describes the required properties of YM-compatible cements and the program to develop and test materials for a suite of underground construction technologies. Specifically, this paper addresses mitigiation of potential impacts of free calcium hydroxide in the concrete and grout binding matrices. Part II describes the formulation and testing in detail.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- RW USDOE - Office of Civilian Radioactive Waste Management (RW)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1031511
- Resource Relation:
- Conference: R & D on Low-pH Cement for a Geological Repository, 3rd Workshop, Paris, France, 20070613, 20070614
- Country of Publication:
- United States
- Language:
- English
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