| 種別 | Paper |
| 主題 | Effect of Fine Particles and Water on the Energy Consumption during Mixing |
| 副題 | |
| 筆頭著者 | Boonchai STITMANNAITHUM （Graduate student, Institute of Industrial Science, University of Tokyo） |
| 連名者1 | Taketo UOMOTO （Institute of Industrial Science, University of Tokyo） |
| 連名者2 | |
| 連名者3 | |
| 連名者4 | |
| 連名者5 | |
| キーワード | |
| 巻 | 13 |
| 号 | 1 |
| 先頭ページ | 939 |
| 末尾ページ | 944 |
| 年度 | 1991 |
| 要旨 | INTRODUCTION Mixing is generally considered as one of the most important processes for concrete engineering, however, the mechanism of mixing is not yet well known. It has already been reported by Uomoto that the inspection of the distributions of coarse particles and mortar in concrete is not enough to evaluate the good mixing. Moreover, it has also been found that the properties of concrete in both fresh and hardened state can be changed largly according to the input mixing energy (electrical power consumption) per unit volume of concrete in spite of the type of mixer. This paper presents the effect of fine particles and water on electrical power consumption during mixing based only on the experimental results as the original point to deal with mechanism of mixing for mortar and concrete in the near future. The experiments were conducted by mixing of each constituent of concrete as a single material and as a mixture of each single material with finer particles and water. CONCLUDING REMARKS The results obtained from this study can be summarized as in the following: 1) The linear relation between total energy consumption per unit solid volume and time can be observed for all the tests. 2) Among the solids, the maximum electrical power is consumed by coarse aggregate while the minimum is consumed by slag. 3) The energy consumption during mixing can be reduced significantly by adding some fine particles as well as water to increase the fluidity of mixture. However, in the case of mixture of fine particles size smaller than 2.5mm and water, adverse effect can also be observer due to attractive force between those small particles. |
| PDFファイル名 | 013-01-1163.pdf |