Abstract
A method for mixture design of concrete with multiple performance requirements is proposed. Firstly, the maximal unit masses of fine and coarse aggregates are obtained through measuring their bulk densities. Considering the Bowromi equation and the durability requirements, the water-cement ratio are determined. After that, the excess paste thickness achieves the required workability can be calculated according to the minimum porosity between the aggregates and then the paste content can be obtained. By adjusting the dosage of superplasticizer or viscosity modifying agent, the yield stress and viscosity of concrete can be adjusted as required. The composition of cementitious materials is designed by using simplex centroid design method and then its relationships with the properties of concrete are established. In the last, the range of cementitious materials composition can be obtained according to the requirements for different properties of concrete. In addition, this method can also be used to predict the performances of concrete with different compositions of cementitious materials. © 2018, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
| Translated title of the contribution | Method for Mixture Design of Concrete with Multiple Performance Requirements |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 230-238 |
| Number of pages | 9 |
| Journal | Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society |
| Volume | 46 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Feb 2018 |
| Externally published | Yes |
Research Keywords
- Excessive paste theory
- Least void
- Mixture design
- RRelationship between composition and properties
- Simplex-centroid design
- 组成设计
- 最紧密堆积
- 富余浆体理论
- 单纯型重心设计法
- 混凝土组成与性能关系