Roles of mortar volume in porosity, permeability and strength of pervious concrete
Abstract Pervious concrete is designed to be porous to allow permeation of water and air for combating the environmental and drainage problems arising from urbanization. However, despite extensive research, it is still not clear how best to design pervious concrete mixes to achieve good concurrent p...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-07-01
|
| Series: | Journal of Infrastructure Preservation and Resilience |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s43065-021-00033-2 |
| _version_ | 1818672104138080256 |
|---|---|
| author | Leo Gu Li Jia-Jian Feng Bo-Feng Xiao Shao-Hua Chu Albert Kwok Hung Kwan |
| author_facet | Leo Gu Li Jia-Jian Feng Bo-Feng Xiao Shao-Hua Chu Albert Kwok Hung Kwan |
| author_sort | Leo Gu Li |
| collection | DOAJ |
| description | Abstract Pervious concrete is designed to be porous to allow permeation of water and air for combating the environmental and drainage problems arising from urbanization. However, despite extensive research, it is still not clear how best to design pervious concrete mixes to achieve good concurrent permeability-strength performance. In a previous study, the authors found that there is a necessity to distinguish between interconnected porosity and open porosity, and between unsubmerged permeability and submerged permeability. In this study, based on the thinking that fine aggregate may be added to reduce the paste volume provided the fine aggregate is fine enough to form a coherent mass with the paste, further research was conducted to develop the mortar type pervious concrete with reduced paste volume and investigate the roles of the mortar volume in porosity, permeability and strength. A new series of concrete mixes with varying mortar volume were tested and the results revealed that the interconnected porosity is the major factor determining the permeability while the open porosity and water/cement ratio are the major factors determining the strength. More importantly, the mortar volume plays a key role in each performance attribute. |
| first_indexed | 2024-12-17T07:34:35Z |
| format | Article |
| id | doaj.art-1b0ab068f82c43dba0bfdb146eda1600 |
| institution | Directory Open Access Journal |
| issn | 2662-2521 |
| language | English |
| last_indexed | 2024-12-17T07:34:35Z |
| publishDate | 2021-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Infrastructure Preservation and Resilience |
| spelling | doaj.art-1b0ab068f82c43dba0bfdb146eda16002022-12-21T21:58:22ZengSpringerOpenJournal of Infrastructure Preservation and Resilience2662-25212021-07-012111610.1186/s43065-021-00033-2Roles of mortar volume in porosity, permeability and strength of pervious concreteLeo Gu Li0Jia-Jian Feng1Bo-Feng Xiao2Shao-Hua Chu3Albert Kwok Hung Kwan4Guangdong University of TechnologyCIFI GroupGuangdong University of TechnologyThe Chinese University of Hong KongThe University of Hong KongAbstract Pervious concrete is designed to be porous to allow permeation of water and air for combating the environmental and drainage problems arising from urbanization. However, despite extensive research, it is still not clear how best to design pervious concrete mixes to achieve good concurrent permeability-strength performance. In a previous study, the authors found that there is a necessity to distinguish between interconnected porosity and open porosity, and between unsubmerged permeability and submerged permeability. In this study, based on the thinking that fine aggregate may be added to reduce the paste volume provided the fine aggregate is fine enough to form a coherent mass with the paste, further research was conducted to develop the mortar type pervious concrete with reduced paste volume and investigate the roles of the mortar volume in porosity, permeability and strength. A new series of concrete mixes with varying mortar volume were tested and the results revealed that the interconnected porosity is the major factor determining the permeability while the open porosity and water/cement ratio are the major factors determining the strength. More importantly, the mortar volume plays a key role in each performance attribute.https://doi.org/10.1186/s43065-021-00033-2Concrete mix designMortar volumePaste volumePermeabilityPervious concretePorosity |
| spellingShingle | Leo Gu Li Jia-Jian Feng Bo-Feng Xiao Shao-Hua Chu Albert Kwok Hung Kwan Roles of mortar volume in porosity, permeability and strength of pervious concrete Journal of Infrastructure Preservation and Resilience Concrete mix design Mortar volume Paste volume Permeability Pervious concrete Porosity |
| title | Roles of mortar volume in porosity, permeability and strength of pervious concrete |
| title_full | Roles of mortar volume in porosity, permeability and strength of pervious concrete |
| title_fullStr | Roles of mortar volume in porosity, permeability and strength of pervious concrete |
| title_full_unstemmed | Roles of mortar volume in porosity, permeability and strength of pervious concrete |
| title_short | Roles of mortar volume in porosity, permeability and strength of pervious concrete |
| title_sort | roles of mortar volume in porosity permeability and strength of pervious concrete |
| topic | Concrete mix design Mortar volume Paste volume Permeability Pervious concrete Porosity |
| url | https://doi.org/10.1186/s43065-021-00033-2 |
| work_keys_str_mv | AT leoguli rolesofmortarvolumeinporositypermeabilityandstrengthofperviousconcrete AT jiajianfeng rolesofmortarvolumeinporositypermeabilityandstrengthofperviousconcrete AT bofengxiao rolesofmortarvolumeinporositypermeabilityandstrengthofperviousconcrete AT shaohuachu rolesofmortarvolumeinporositypermeabilityandstrengthofperviousconcrete AT albertkwokhungkwan rolesofmortarvolumeinporositypermeabilityandstrengthofperviousconcrete |