Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate
In order to study the influence of physical properties and volume content of coarse aggregate on concrete strength, the effective water absorption, apparent density and crushing index of different types of coarse aggregate were tested; the contribution strength coefficient and reinforcement coeffici...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2024-01-01
|
| Series: | Journal of Asian Architecture and Building Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/13467581.2023.2238021 |
| _version_ | 1797336068937220096 |
|---|---|
| author | Xiaohong Chen Yueyue Zhang Pei Ge |
| author_facet | Xiaohong Chen Yueyue Zhang Pei Ge |
| author_sort | Xiaohong Chen |
| collection | DOAJ |
| description | In order to study the influence of physical properties and volume content of coarse aggregate on concrete strength, the effective water absorption, apparent density and crushing index of different types of coarse aggregate were tested; the contribution strength coefficient and reinforcement coefficient of coarse and fine aggregate were proposed according to the mechanics of composite materials, the optimal range of the volume content of coarse and fine aggregate was determined, the calculation equation of concrete compressive strength based on the properties of coarse aggregate and the volume content of coarse and fine aggregate was established. The results show that: the effective water absorption of recycled brick aggregate (RBA) is 8.18% and that of natural aggregate (NA) is 0.32%; the apparent density of NA is 2713 kg/m3 and that of RBA is 2100 kg/m3; the crushing index of NA is 18.07% and that of RBA is 30.59%; furthermore, the crushing value of RBA is close to that of cement mortar with water cement ratio of 0.46; NA has a greater range of strengthening the compressive strength of concrete than RBA; when sand cement ratio is between 0.3 and 2.5, both Ks’ and Ks are greater than 1; when sand cement ratio is about 0.5, Ks’ reach the maximum value; when sand cement ratio is about 0.75, Ks reach the maximum value; the calculation equation of concrete compressive strength established in this paper has a good prediction effect, which provides a new idea for the calculation method of concrete compressive strength. |
| first_indexed | 2024-03-08T08:47:39Z |
| format | Article |
| id | doaj.art-ddb8c4972ffe44df9bedb05a50bb5bf3 |
| institution | Directory Open Access Journal |
| issn | 1347-2852 |
| language | English |
| last_indexed | 2024-03-08T08:47:39Z |
| publishDate | 2024-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Architecture and Building Engineering |
| spelling | doaj.art-ddb8c4972ffe44df9bedb05a50bb5bf32024-02-01T14:39:33ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522024-01-0123120421910.1080/13467581.2023.22380212238021Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregateXiaohong Chen0Yueyue Zhang1Pei Ge2Zhengzhou Railway Vocational & Technical CollegeZhengzhou Railway Vocational & Technical CollegeChangzhou Institute of TechnologyIn order to study the influence of physical properties and volume content of coarse aggregate on concrete strength, the effective water absorption, apparent density and crushing index of different types of coarse aggregate were tested; the contribution strength coefficient and reinforcement coefficient of coarse and fine aggregate were proposed according to the mechanics of composite materials, the optimal range of the volume content of coarse and fine aggregate was determined, the calculation equation of concrete compressive strength based on the properties of coarse aggregate and the volume content of coarse and fine aggregate was established. The results show that: the effective water absorption of recycled brick aggregate (RBA) is 8.18% and that of natural aggregate (NA) is 0.32%; the apparent density of NA is 2713 kg/m3 and that of RBA is 2100 kg/m3; the crushing index of NA is 18.07% and that of RBA is 30.59%; furthermore, the crushing value of RBA is close to that of cement mortar with water cement ratio of 0.46; NA has a greater range of strengthening the compressive strength of concrete than RBA; when sand cement ratio is between 0.3 and 2.5, both Ks’ and Ks are greater than 1; when sand cement ratio is about 0.5, Ks’ reach the maximum value; when sand cement ratio is about 0.75, Ks reach the maximum value; the calculation equation of concrete compressive strength established in this paper has a good prediction effect, which provides a new idea for the calculation method of concrete compressive strength.http://dx.doi.org/10.1080/13467581.2023.2238021volume content of coarse and fine aggregatesand cement ratiocontribution strength coefficientenhancement coefficientcalculation method of concrete strength |
| spellingShingle | Xiaohong Chen Yueyue Zhang Pei Ge Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate Journal of Asian Architecture and Building Engineering volume content of coarse and fine aggregate sand cement ratio contribution strength coefficient enhancement coefficient calculation method of concrete strength |
| title | Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| title_full | Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| title_fullStr | Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| title_full_unstemmed | Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| title_short | Research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| title_sort | research on the calculation method of concrete compressive strength based on volume content of recycled coarse aggregate and fine aggregate |
| topic | volume content of coarse and fine aggregate sand cement ratio contribution strength coefficient enhancement coefficient calculation method of concrete strength |
| url | http://dx.doi.org/10.1080/13467581.2023.2238021 |
| work_keys_str_mv | AT xiaohongchen researchonthecalculationmethodofconcretecompressivestrengthbasedonvolumecontentofrecycledcoarseaggregateandfineaggregate AT yueyuezhang researchonthecalculationmethodofconcretecompressivestrengthbasedonvolumecontentofrecycledcoarseaggregateandfineaggregate AT peige researchonthecalculationmethodofconcretecompressivestrengthbasedonvolumecontentofrecycledcoarseaggregateandfineaggregate |