Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method
This article aims to improve the accuracy and predictability of rebound method in compressive strength evaluation of concrete members of the Yanchong Expressway, which is an important traffic guarantee project for the 2022 Winter Olympics Games in Zhangjiakou city, Hebei Province, China. For this pu...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8413010 |
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| author | Wei Yuan Renfeng Yang Jianyou Yu Xiujie Han |
| author_facet | Wei Yuan Renfeng Yang Jianyou Yu Xiujie Han |
| author_sort | Wei Yuan |
| collection | DOAJ |
| description | This article aims to improve the accuracy and predictability of rebound method in compressive strength evaluation of concrete members of the Yanchong Expressway, which is an important traffic guarantee project for the 2022 Winter Olympics Games in Zhangjiakou city, Hebei Province, China. For this purpose, concrete specimens were prepared by the mixing ratios of C35, C40, and C50. First of all, the paper investigated the effects of curing age, types, and dosage of mineral admixtures (fly ash and slag) on concrete rebound number and compressive strength. Then, the special testing strength curves of 7 d and 90 d curing age were proposed. The results showed that the average relative errors of the special testing strength curves were reduced by 35.99% and 20.26% respectively, compared with the national testing strength curve. Fly ash and slag were beneficial to the growth of concrete rebound numbers but cannot contribute to the growth of concrete compressive strength (except for fly ash single-mixed with 15% dosage). The present results can provide a significant reference for the compressive strength evaluation and later maintenance of concrete members of the Yanchong Expressway or other projects with tight construction period in this area. |
| format | Article |
| id | doaj-art-ae2a030a019847e4a06d141203f5c02b |
| institution | OA Journals |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ae2a030a019847e4a06d141203f5c02b2025-08-20T02:19:16ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/8413010Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound MethodWei Yuan0Renfeng Yang1Jianyou Yu2Xiujie Han3School of Construction MachinerySchool of Construction MachineryYan-Chong Temporary Preparatory Office of Hebei Province ExpresswayYan-Chong Temporary Preparatory Office of Hebei Province ExpresswayThis article aims to improve the accuracy and predictability of rebound method in compressive strength evaluation of concrete members of the Yanchong Expressway, which is an important traffic guarantee project for the 2022 Winter Olympics Games in Zhangjiakou city, Hebei Province, China. For this purpose, concrete specimens were prepared by the mixing ratios of C35, C40, and C50. First of all, the paper investigated the effects of curing age, types, and dosage of mineral admixtures (fly ash and slag) on concrete rebound number and compressive strength. Then, the special testing strength curves of 7 d and 90 d curing age were proposed. The results showed that the average relative errors of the special testing strength curves were reduced by 35.99% and 20.26% respectively, compared with the national testing strength curve. Fly ash and slag were beneficial to the growth of concrete rebound numbers but cannot contribute to the growth of concrete compressive strength (except for fly ash single-mixed with 15% dosage). The present results can provide a significant reference for the compressive strength evaluation and later maintenance of concrete members of the Yanchong Expressway or other projects with tight construction period in this area.http://dx.doi.org/10.1155/2021/8413010 |
| spellingShingle | Wei Yuan Renfeng Yang Jianyou Yu Xiujie Han Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method Advances in Materials Science and Engineering |
| title | Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method |
| title_full | Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method |
| title_fullStr | Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method |
| title_full_unstemmed | Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method |
| title_short | Experimental Study on Special Testing Strength Curve for Compressive Strength Evaluation by Rebound Method |
| title_sort | experimental study on special testing strength curve for compressive strength evaluation by rebound method |
| url | http://dx.doi.org/10.1155/2021/8413010 |
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