Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete
A study was undertaken to develop a prediction model of compressive strength for three types of high-porosity cast-in-situ foamed concrete (cement mix, cement-fly ash mix, and cement-sand mix) with dry densities of less than 700 kg/m3. The model is an extension of Balshin’s model and takes into acco...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3897348 |
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| author | Wenhui Zhao Junjie Huang Qian Su Ting Liu |
| author_facet | Wenhui Zhao Junjie Huang Qian Su Ting Liu |
| author_sort | Wenhui Zhao |
| collection | DOAJ |
| description | A study was undertaken to develop a prediction model of compressive strength for three types of high-porosity cast-in-situ foamed concrete (cement mix, cement-fly ash mix, and cement-sand mix) with dry densities of less than 700 kg/m3. The model is an extension of Balshin’s model and takes into account the hydration ratio of the raw materials, in which the water/cement ratio was a constant for the entire construction period for a certain casting density. The results show that the measured porosity is slightly lower than the theoretical porosity due to few inaccessible pores. The compressive strength increases exponentially with the increase in the ratio of the dry density to the solid density and increases with the curing time following the composite function A2lntB2 for all three types of foamed concrete. Based on the results that the compressive strength changes with the porosity and the curing time, a prediction model taking into account the mix constitution, curing time, and porosity is developed. A simple prediction model is put forward when no experimental data are available. |
| format | Article |
| id | doaj-art-5419dda3b0864de39b66adfc75f47920 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5419dda3b0864de39b66adfc75f479202025-02-03T05:45:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/38973483897348Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed ConcreteWenhui Zhao0Junjie Huang1Qian Su2Ting Liu3School of Civil Engineering, Southwest Jiaotong University, Chengdu, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, ChinaA study was undertaken to develop a prediction model of compressive strength for three types of high-porosity cast-in-situ foamed concrete (cement mix, cement-fly ash mix, and cement-sand mix) with dry densities of less than 700 kg/m3. The model is an extension of Balshin’s model and takes into account the hydration ratio of the raw materials, in which the water/cement ratio was a constant for the entire construction period for a certain casting density. The results show that the measured porosity is slightly lower than the theoretical porosity due to few inaccessible pores. The compressive strength increases exponentially with the increase in the ratio of the dry density to the solid density and increases with the curing time following the composite function A2lntB2 for all three types of foamed concrete. Based on the results that the compressive strength changes with the porosity and the curing time, a prediction model taking into account the mix constitution, curing time, and porosity is developed. A simple prediction model is put forward when no experimental data are available.http://dx.doi.org/10.1155/2018/3897348 |
| spellingShingle | Wenhui Zhao Junjie Huang Qian Su Ting Liu Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete Advances in Materials Science and Engineering |
| title | Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete |
| title_full | Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete |
| title_fullStr | Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete |
| title_full_unstemmed | Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete |
| title_short | Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete |
| title_sort | models for strength prediction of high porosity cast in situ foamed concrete |
| url | http://dx.doi.org/10.1155/2018/3897348 |
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