Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity
Appearance quality serves as a comprehensive indicator of material homogeneity and construction quality. However, research on appearance quality traceability remains limited, especially regarding the influence of controllable factors during production. To address this gap, concrete was prepared usin...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-12-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525008046 |
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| author | Jue Lu Faguang Leng Jingliang Xia Jing Wang Longfang Ren |
| author_facet | Jue Lu Faguang Leng Jingliang Xia Jing Wang Longfang Ren |
| author_sort | Jue Lu |
| collection | DOAJ |
| description | Appearance quality serves as a comprehensive indicator of material homogeneity and construction quality. However, research on appearance quality traceability remains limited, especially regarding the influence of controllable factors during production. To address this gap, concrete was prepared using different mix proportions, formwork types, and release agents, with appearance images collected at specified curing ages. The average grayscale (Ave) and the coefficient of variation of grayscale (Cv) were employed as quantitative indicators for apparent shade and uniformity, respectively, using digital image processing techniques. Then, statistical analysis revealed that formwork type, release agent and curing age together explained the variation in apparent shade. Among these factors, only formwork was used to explain the change in apparent uniformity. Finally, through validity test, internal test, external test and residual analysis, the stability and prediction range of the models were confirmed. This method can be used for rapid batch screening, like initial inspection on construction sites. |
| format | Article |
| id | doaj-art-88aa64c58c3d4a4683adf195f9f86daf |
| institution | Matheson Library |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-88aa64c58c3d4a4683adf195f9f86daf2025-07-04T04:46:33ZengElsevierCase Studies in Construction Materials2214-50952025-12-0123e05006Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformityJue Lu0Faguang Leng1Jingliang Xia2Jing Wang3Longfang Ren4Institute of Building Materials, China Academy of Building Research, Beijing 100013, China; State Key Laboratory of Building Safety and Environment, Beijing 100013, China; National Engineering Research Center of Building Technology, Beijing 100013, China; Correspondence to: Room 1801, No. 30, Beisanhuan East Road, Chaoyang District, Beijing, China.Institute of Building Materials, China Academy of Building Research, Beijing 100013, China; State Key Laboratory of Building Safety and Environment, Beijing 100013, China; National Engineering Research Center of Building Technology, Beijing 100013, China; Correspondence to: Room 1801, No. 30, Beisanhuan East Road, Chaoyang District, Beijing, China.Institute of Building Materials, China Academy of Building Research, Beijing 100013, China; State Key Laboratory of Building Safety and Environment, Beijing 100013, China; National Engineering Research Center of Building Technology, Beijing 100013, ChinaInstitute of Building Materials, China Academy of Building Research, Beijing 100013, China; State Key Laboratory of Building Safety and Environment, Beijing 100013, China; National Engineering Research Center of Building Technology, Beijing 100013, ChinaInstitute of Building Materials, China Academy of Building Research, Beijing 100013, China; State Key Laboratory of Building Safety and Environment, Beijing 100013, China; National Engineering Research Center of Building Technology, Beijing 100013, ChinaAppearance quality serves as a comprehensive indicator of material homogeneity and construction quality. However, research on appearance quality traceability remains limited, especially regarding the influence of controllable factors during production. To address this gap, concrete was prepared using different mix proportions, formwork types, and release agents, with appearance images collected at specified curing ages. The average grayscale (Ave) and the coefficient of variation of grayscale (Cv) were employed as quantitative indicators for apparent shade and uniformity, respectively, using digital image processing techniques. Then, statistical analysis revealed that formwork type, release agent and curing age together explained the variation in apparent shade. Among these factors, only formwork was used to explain the change in apparent uniformity. Finally, through validity test, internal test, external test and residual analysis, the stability and prediction range of the models were confirmed. This method can be used for rapid batch screening, like initial inspection on construction sites.http://www.sciencedirect.com/science/article/pii/S2214509525008046ConcreteApparent shadeApparent uniformityDigital image processingStatistical analysis |
| spellingShingle | Jue Lu Faguang Leng Jingliang Xia Jing Wang Longfang Ren Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity Case Studies in Construction Materials Concrete Apparent shade Apparent uniformity Digital image processing Statistical analysis |
| title | Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| title_full | Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| title_fullStr | Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| title_full_unstemmed | Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| title_short | Quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| title_sort | quantitative evaluation and traceability analysis of concrete apparent shade and apparent uniformity |
| topic | Concrete Apparent shade Apparent uniformity Digital image processing Statistical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525008046 |
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