Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete
This article introduces some experimental data from the compression test, the tension test, and the temperature stress test machine (TSTM) test for low-heat Portland (LHP) cement concrete with different fly ash (FA) content. With the proposed equations, the thermal cracks can be predicted with the T...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/7630568 |
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| author | Longlong Liu Shangchuan Zhao Jianda Xin Zhenhong Wang |
| author_facet | Longlong Liu Shangchuan Zhao Jianda Xin Zhenhong Wang |
| author_sort | Longlong Liu |
| collection | DOAJ |
| description | This article introduces some experimental data from the compression test, the tension test, and the temperature stress test machine (TSTM) test for low-heat Portland (LHP) cement concrete with different fly ash (FA) content. With the proposed equations, the thermal cracks can be predicted with the TSTM test along with the mechanical properties. The higher FA content exhibits a lower hydration degree and a smaller adiabatic temperature rise. Although the FA content decreases the hydration heat and the strength at an early age, there are few influences on the relational expression between compressive strength and tensile strength. The proposed equations can also be applied to estimate the thermal cracks risk in LHP cement concrete. The cracking stress of LHP cement concrete in the temperature stress test is not only related to the tensile stress history but also connected to the compressive stress history. Considering the strength history, an analytical method for evaluating the cracking temperature difference was proposed. With the proposed method, only compressive strength can be used to estimate the thermal cracks risk for LHP cement concrete at different ages. It greatly simplifies the evaluation method of thermal cracks in low-heat Portland cement concrete. Furthermore, this evaluation method can also be applied to other types of concrete. |
| format | Article |
| id | doaj-art-fbc49c6b00db4c22b8d9ba1cf42a414b |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-fbc49c6b00db4c22b8d9ba1cf42a414b2025-02-03T06:07:32ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/7630568Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement ConcreteLonglong Liu0Shangchuan Zhao1Jianda Xin2Zhenhong Wang3Research Institute of HighwayResearch Institute of HighwayKey Laboratory of Construction and Safety of Water Engineering of the Ministry of Water ResourcesKey Laboratory of Construction and Safety of Water Engineering of the Ministry of Water ResourcesThis article introduces some experimental data from the compression test, the tension test, and the temperature stress test machine (TSTM) test for low-heat Portland (LHP) cement concrete with different fly ash (FA) content. With the proposed equations, the thermal cracks can be predicted with the TSTM test along with the mechanical properties. The higher FA content exhibits a lower hydration degree and a smaller adiabatic temperature rise. Although the FA content decreases the hydration heat and the strength at an early age, there are few influences on the relational expression between compressive strength and tensile strength. The proposed equations can also be applied to estimate the thermal cracks risk in LHP cement concrete. The cracking stress of LHP cement concrete in the temperature stress test is not only related to the tensile stress history but also connected to the compressive stress history. Considering the strength history, an analytical method for evaluating the cracking temperature difference was proposed. With the proposed method, only compressive strength can be used to estimate the thermal cracks risk for LHP cement concrete at different ages. It greatly simplifies the evaluation method of thermal cracks in low-heat Portland cement concrete. Furthermore, this evaluation method can also be applied to other types of concrete.http://dx.doi.org/10.1155/2022/7630568 |
| spellingShingle | Longlong Liu Shangchuan Zhao Jianda Xin Zhenhong Wang Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete Advances in Civil Engineering |
| title | Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete |
| title_full | Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete |
| title_fullStr | Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete |
| title_full_unstemmed | Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete |
| title_short | Simplified Analysis of Thermal Cracks in Low-Heat Portland Cement Concrete |
| title_sort | simplified analysis of thermal cracks in low heat portland cement concrete |
| url | http://dx.doi.org/10.1155/2022/7630568 |
| work_keys_str_mv | AT longlongliu simplifiedanalysisofthermalcracksinlowheatportlandcementconcrete AT shangchuanzhao simplifiedanalysisofthermalcracksinlowheatportlandcementconcrete AT jiandaxin simplifiedanalysisofthermalcracksinlowheatportlandcementconcrete AT zhenhongwang simplifiedanalysisofthermalcracksinlowheatportlandcementconcrete |