Experimental Verification of Chemical Admixture to Reduce Stiffness of Concrete
| Autor: | Shin-ichiro Hashimoto, Shigeyuki Date, Hiroshi Nemoto, Shuya Hirano |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering 0211 other engineering and technologies Stiffness Rigidity (psychology) 02 engineering and technology Rotational viscometer 01 natural sciences 010406 physical chemistry 0104 chemical sciences Mechanics of Materials 021105 building & construction medicine General Materials Science Chemical admixture medicine.symptom Composite material |
| Zdroj: | Key Engineering Materials. 853:198-208 |
| ISSN: | 1662-9795 |
| Popis: | In this paper, the phenomenon in which the fluidity drops significantly once the concrete, which is a problem in the construction work, is called “stiffness”, and the hypothesis of the occurrence mechanism was hypothesized based on a microscopic image of cement paste. Then, author developed a chemical admixture (stiffness reducing agent) that suppresses the aggregation of cement particles and verified the effect through various tests. In the verification test, author tried to quantify the stiffness of concrete by a simple test called the vane shear test. Also, through various construction performance tests, author confirmed the possibility of stiffness affecting the construction work. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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