Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould
here are increasing interests in using natural pozzolans as partial replacements for ordinary Portland cement (OPC) in concrete due to the benefit to the environment, low-carbon footprint, and durability improvement potentials. In the present research, open-air-burnt non-grinded rice husk ash (RHA)...
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| Format: | Article |
| Language: | English |
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Peter the Great St. Petersburg Polytechnic University
2022-11-01
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| Series: | Magazine of Civil Engineering |
| Subjects: | |
| Online Access: | http://engstroy.spbstu.ru/article/2022.115.11/ |
| _version_ | 1811211049093824512 |
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| author | Uwazuruonye Raphael |
| author_facet | Uwazuruonye Raphael |
| author_sort | Uwazuruonye Raphael |
| collection | DOAJ |
| description | here are increasing interests in using natural pozzolans as partial replacements for ordinary Portland cement (OPC) in concrete due to the benefit to the environment, low-carbon footprint, and durability improvement potentials. In the present research, open-air-burnt non-grinded rice husk ash (RHA) samples from Ganawuri-Plateau State, Nigeria, were used as a partial replacement for OPC in concrete. A water-permeable form (controlled permeability formwork – CPF) was utilized to counter the adverse effects of high-water demand. The combined effects of CPF and RHA on the cover-zone microstructure/porosity were analysed by the mercury intrusion porosimetry (MIP) test. Water sorptivity and sulphuric acid resistance properties were measured by Surface Water Absorption Test (SWAT) and accelerated sulphuric acid resistance test, respectively, to study the suitability of the concrete mixtures for sewerage concrete structures. Compared to Portland cement concrete, the RHA with CPF samples had relatively low permeability and low water sorptivity while the RHA without CPF samples showed the highest resistance to sulphuric acid attack, exhibiting no weight loss, no gypsum formation at the surface with the least surface discolouration. |
| first_indexed | 2024-04-12T05:06:12Z |
| format | Article |
| id | doaj.art-793d7e73a40f45bfb1c2df52796e6282 |
| institution | Directory Open Access Journal |
| issn | 2712-8172 |
| language | English |
| last_indexed | 2024-04-12T05:06:12Z |
| publishDate | 2022-11-01 |
| publisher | Peter the Great St. Petersburg Polytechnic University |
| record_format | Article |
| series | Magazine of Civil Engineering |
| spelling | doaj.art-793d7e73a40f45bfb1c2df52796e62822022-12-22T03:46:53ZengPeter the Great St. Petersburg Polytechnic UniversityMagazine of Civil Engineering2712-81722022-11-011150710.34910/MCE.115.1120714726Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mouldUwazuruonye Raphael0https://orcid.org/0000-0002-4707-9946Yokohama National Universityhere are increasing interests in using natural pozzolans as partial replacements for ordinary Portland cement (OPC) in concrete due to the benefit to the environment, low-carbon footprint, and durability improvement potentials. In the present research, open-air-burnt non-grinded rice husk ash (RHA) samples from Ganawuri-Plateau State, Nigeria, were used as a partial replacement for OPC in concrete. A water-permeable form (controlled permeability formwork – CPF) was utilized to counter the adverse effects of high-water demand. The combined effects of CPF and RHA on the cover-zone microstructure/porosity were analysed by the mercury intrusion porosimetry (MIP) test. Water sorptivity and sulphuric acid resistance properties were measured by Surface Water Absorption Test (SWAT) and accelerated sulphuric acid resistance test, respectively, to study the suitability of the concrete mixtures for sewerage concrete structures. Compared to Portland cement concrete, the RHA with CPF samples had relatively low permeability and low water sorptivity while the RHA without CPF samples showed the highest resistance to sulphuric acid attack, exhibiting no weight loss, no gypsum formation at the surface with the least surface discolouration.http://engstroy.spbstu.ru/article/2022.115.11/concretesupplementary cementitious materialmicrostructurewater absorptionacid resistancesustainabilitydurability |
| spellingShingle | Uwazuruonye Raphael Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould Magazine of Civil Engineering concrete supplementary cementitious material microstructure water absorption acid resistance sustainability durability |
| title | Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould |
| title_full | Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould |
| title_fullStr | Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould |
| title_full_unstemmed | Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould |
| title_short | Durable concrete in sewerage using non-grinded rice husk ash and water-permeable mould |
| title_sort | durable concrete in sewerage using non grinded rice husk ash and water permeable mould |
| topic | concrete supplementary cementitious material microstructure water absorption acid resistance sustainability durability |
| url | http://engstroy.spbstu.ru/article/2022.115.11/ |
| work_keys_str_mv | AT uwazuruonyeraphael durableconcreteinsewerageusingnongrindedricehuskashandwaterpermeablemould |