A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH
Sprayed concrete is important construction material in tunnelling. Primary lining is essential in NATM where the sprayed concrete can be loaded by tension due to bending moments. The tension is common reason of failure because concrete has a relatively low tensile strength. The tensile strength is u...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2019-07-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5701 |
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| author | Martin Závacký |
| author_facet | Martin Závacký |
| author_sort | Martin Závacký |
| collection | DOAJ |
| description | Sprayed concrete is important construction material in tunnelling. Primary lining is essential in NATM where the sprayed concrete can be loaded by tension due to bending moments. The tension is common reason of failure because concrete has a relatively low tensile strength. The tensile strength is usually determined by splitting tensile test in laboratory. However, the results can be distorted because the specimen is not loaded by pure tension in this case. The paper compares results of concrete tensile strength determined by two methods: indirect by the splitting tensile test and direct by the modified tensile test. |
| format | Article |
| id | doaj-art-f9773a0a32c648ca8b4ebe416439cebb |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2019-07-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-f9773a0a32c648ca8b4ebe416439cebb2025-08-20T02:49:14ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822019-07-01230545710.14311/APP.2019.23.00544605A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTHMartin ZávackýSprayed concrete is important construction material in tunnelling. Primary lining is essential in NATM where the sprayed concrete can be loaded by tension due to bending moments. The tension is common reason of failure because concrete has a relatively low tensile strength. The tensile strength is usually determined by splitting tensile test in laboratory. However, the results can be distorted because the specimen is not loaded by pure tension in this case. The paper compares results of concrete tensile strength determined by two methods: indirect by the splitting tensile test and direct by the modified tensile test.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5701tensile strength, sprayed concrete, modified tensile test, splitting tensile test |
| spellingShingle | Martin Závacký A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH Acta Polytechnica CTU Proceedings tensile strength, sprayed concrete, modified tensile test, splitting tensile test |
| title | A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH |
| title_full | A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH |
| title_fullStr | A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH |
| title_full_unstemmed | A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH |
| title_short | A COMPARISON OF TESTING METHODS FOR DETERMINATION OF SPRAYED CONCRETE TENSILE STRENGTH |
| title_sort | comparison of testing methods for determination of sprayed concrete tensile strength |
| topic | tensile strength, sprayed concrete, modified tensile test, splitting tensile test |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5701 |
| work_keys_str_mv | AT martinzavacky acomparisonoftestingmethodsfordeterminationofsprayedconcretetensilestrength AT martinzavacky comparisonoftestingmethodsfordeterminationofsprayedconcretetensilestrength |