Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage
Long-term immersion was adopted to explore the damage deterioration and mechanical properties of granite under different chemical solutions. Here, granite was selected as the candidate of parent rocks for nuclear waste storage. The physical and mechanical properties of variation regularity immersed...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2016/7853787 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564575632883712 |
|---|---|
| author | Tielin Han Junping Shi Yunsheng Chen Zhihui Li |
| author_facet | Tielin Han Junping Shi Yunsheng Chen Zhihui Li |
| author_sort | Tielin Han |
| collection | DOAJ |
| description | Long-term immersion was adopted to explore the damage deterioration and mechanical properties of granite under different chemical solutions. Here, granite was selected as the candidate of parent rocks for nuclear waste storage. The physical and mechanical properties of variation regularity immersed in various chemical solutions were analyzed. Meanwhile, the damage variable based on the variation in porosity was used in the quantitative analysis of chemical damage deterioration degree. Experimental results show that granite has a significant weakening tendency after chemical corrosion. The fracture toughness KIC, splitting tensile strength, and compressive strength all demonstrate the same deteriorating trend with chemical corrosion time. However, a difference exists in the deterioration degree of the mechanical parameters; that is, the deterioration degree of fracture toughness KIC is the greatest followed by those of splitting tensile strength and compressive strength, which are relatively smaller. Strong acid solutions may aggravate chemical damage deterioration in granite. By contrast, strong alkaline solutions have a certain inhibiting effect on chemical damage deterioration. The chemical solutions that feature various compositions may have different effects on chemical damage degree; that is, SO42- ions have a greater effect on the chemical damage in granite than HCO3- ions. |
| format | Article |
| id | doaj-art-dbb1ceeaa6d9430d9e5e179aed04b374 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-dbb1ceeaa6d9430d9e5e179aed04b3742025-02-03T01:10:47ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832016-01-01201610.1155/2016/78537877853787Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste StorageTielin Han0Junping Shi1Yunsheng Chen2Zhihui Li3Institute of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, ChinaInstitute of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, ChinaLong-term immersion was adopted to explore the damage deterioration and mechanical properties of granite under different chemical solutions. Here, granite was selected as the candidate of parent rocks for nuclear waste storage. The physical and mechanical properties of variation regularity immersed in various chemical solutions were analyzed. Meanwhile, the damage variable based on the variation in porosity was used in the quantitative analysis of chemical damage deterioration degree. Experimental results show that granite has a significant weakening tendency after chemical corrosion. The fracture toughness KIC, splitting tensile strength, and compressive strength all demonstrate the same deteriorating trend with chemical corrosion time. However, a difference exists in the deterioration degree of the mechanical parameters; that is, the deterioration degree of fracture toughness KIC is the greatest followed by those of splitting tensile strength and compressive strength, which are relatively smaller. Strong acid solutions may aggravate chemical damage deterioration in granite. By contrast, strong alkaline solutions have a certain inhibiting effect on chemical damage deterioration. The chemical solutions that feature various compositions may have different effects on chemical damage degree; that is, SO42- ions have a greater effect on the chemical damage in granite than HCO3- ions.http://dx.doi.org/10.1155/2016/7853787 |
| spellingShingle | Tielin Han Junping Shi Yunsheng Chen Zhihui Li Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage Science and Technology of Nuclear Installations |
| title | Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage |
| title_full | Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage |
| title_fullStr | Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage |
| title_full_unstemmed | Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage |
| title_short | Effect of Chemical Corrosion on the Mechanical Characteristics of Parent Rocks for Nuclear Waste Storage |
| title_sort | effect of chemical corrosion on the mechanical characteristics of parent rocks for nuclear waste storage |
| url | http://dx.doi.org/10.1155/2016/7853787 |
| work_keys_str_mv | AT tielinhan effectofchemicalcorrosiononthemechanicalcharacteristicsofparentrocksfornuclearwastestorage AT junpingshi effectofchemicalcorrosiononthemechanicalcharacteristicsofparentrocksfornuclearwastestorage AT yunshengchen effectofchemicalcorrosiononthemechanicalcharacteristicsofparentrocksfornuclearwastestorage AT zhihuili effectofchemicalcorrosiononthemechanicalcharacteristicsofparentrocksfornuclearwastestorage |