Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater
Concrete structures are often subjected to aggressive aqueous environments which consist of several chemical agents that can react with concrete to produce adverse effects. A Central Effluent Treatment Plant consisting of reinforced concrete structures which is being constructed at Savar, Bangladesh...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/5368635 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556699349680128 |
|---|---|
| author | Tanvir Manzur Khaled Mahmood Ehsan Sinha Lamia Sultana Samira Mahmud |
| author_facet | Tanvir Manzur Khaled Mahmood Ehsan Sinha Lamia Sultana Samira Mahmud |
| author_sort | Tanvir Manzur |
| collection | DOAJ |
| description | Concrete structures are often subjected to aggressive aqueous environments which consist of several chemical agents that can react with concrete to produce adverse effects. A Central Effluent Treatment Plant consisting of reinforced concrete structures which is being constructed at Savar, Bangladesh, is an example of such a case. The purpose of this treatment facility is to reduce the environmental pollution created by tannery wastewater. However, tannery wastewater consists of several chemicals such as sulfates, chlorides, and ammonium, which, from the literature, are known to generate detrimental effects on concrete. Evaluation of durability of concrete structures in such environments is therefore imperative. This paper highlights a technique of boundary detection developed through image processing performed using MATLAB. Cement mortar cubes were submerged in simulated tannery wastewater and the images of the surface of cubes were taken at several time intervals. In addition, readings for compressive strength and weight were also taken on the same days. In this paper, an attempt is made to correlate the results from image processing with that of strength and weight loss. It was found, within the scope of this study, that the specimens which suffered greater strength and weight loss also underwent greater loss of surface area. |
| format | Article |
| id | doaj-art-a9d35182405c439fb8dac822c04138b9 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a9d35182405c439fb8dac822c04138b92025-02-03T05:44:39ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/53686355368635Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery WastewaterTanvir Manzur0Khaled Mahmood Ehsan1Sinha Lamia Sultana2Samira Mahmud3Department of Civil Engineering, BUET, Dhaka 1000, BangladeshDepartment of Civil Engineering, BUET, Dhaka 1000, BangladeshDepartment of Civil Engineering, BUET, Dhaka 1000, BangladeshDepartment of Civil Engineering, BUET, Dhaka 1000, BangladeshConcrete structures are often subjected to aggressive aqueous environments which consist of several chemical agents that can react with concrete to produce adverse effects. A Central Effluent Treatment Plant consisting of reinforced concrete structures which is being constructed at Savar, Bangladesh, is an example of such a case. The purpose of this treatment facility is to reduce the environmental pollution created by tannery wastewater. However, tannery wastewater consists of several chemicals such as sulfates, chlorides, and ammonium, which, from the literature, are known to generate detrimental effects on concrete. Evaluation of durability of concrete structures in such environments is therefore imperative. This paper highlights a technique of boundary detection developed through image processing performed using MATLAB. Cement mortar cubes were submerged in simulated tannery wastewater and the images of the surface of cubes were taken at several time intervals. In addition, readings for compressive strength and weight were also taken on the same days. In this paper, an attempt is made to correlate the results from image processing with that of strength and weight loss. It was found, within the scope of this study, that the specimens which suffered greater strength and weight loss also underwent greater loss of surface area.http://dx.doi.org/10.1155/2016/5368635 |
| spellingShingle | Tanvir Manzur Khaled Mahmood Ehsan Sinha Lamia Sultana Samira Mahmud Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater Advances in Materials Science and Engineering |
| title | Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater |
| title_full | Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater |
| title_fullStr | Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater |
| title_full_unstemmed | Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater |
| title_short | Measurement of Surface Damage through Boundary Detection: An Approach to Assess Durability of Cementitious Composites under Tannery Wastewater |
| title_sort | measurement of surface damage through boundary detection an approach to assess durability of cementitious composites under tannery wastewater |
| url | http://dx.doi.org/10.1155/2016/5368635 |
| work_keys_str_mv | AT tanvirmanzur measurementofsurfacedamagethroughboundarydetectionanapproachtoassessdurabilityofcementitiouscompositesundertannerywastewater AT khaledmahmoodehsan measurementofsurfacedamagethroughboundarydetectionanapproachtoassessdurabilityofcementitiouscompositesundertannerywastewater AT sinhalamiasultana measurementofsurfacedamagethroughboundarydetectionanapproachtoassessdurabilityofcementitiouscompositesundertannerywastewater AT samiramahmud measurementofsurfacedamagethroughboundarydetectionanapproachtoassessdurabilityofcementitiouscompositesundertannerywastewater |