Experimental Study on Vibrating Compaction of Extremely Stiff Consistency and Lean Mix Concrete

特硬稠度稀拌混凝土振动压实试验研究

• 批准号: 60550331
• 负责人: TOKUDA Hiroshi
• 金额: $ 1.15万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550331/
• 关键词: Extremely Stiff Consistency Concrete; Surface Vibrator; Mix Analysis; Mechanical Properties

The compaction mechanism was examined based on the vertical movements of each constituent material which were found by mix analysis test results of concrete in prismatic specimen during the vibrating process. Both water cement ratio W/C and air content a were pointed out as the important internal composition factors influencing on mechanical properties, and the relation between a parameter (W/C+k・a) and compressive strength was obtained. Furthermore, since the compaction degree could be evaluated by the parameter, this was applicable to compaction control as a quality characteristic. This was designated as compaction factor CF, and relations between CF and compacting conditions such as vibrator weight, vibrating frequency, amplitude and specimen size were examined.

通过对混凝土棱柱体试件的配合比分析试验，研究了振捣过程中各组成材料的竖向运动规律。指出水灰比W/C和含气量a是影响力学性能的重要内部组成因素，并得出了a参数（W/C+k·a）与抗压强度的关系。此外，由于压实度可以通过该参数进行评价，因此可以作为一种质量特性应用于压实控制。研究了振捣质量、振捣频率、振幅和试件尺寸等压实条件与压实系数CF的关系。

项目成果

徳田弘: 材料. 36. (1987)

德田浩：材料36。（1987）

加賀谷誠: 土木学会論文集. V-7. (1987)

Makoto Kagaya：日本土木工程师学会论文集 V-7 (1987)。

Hiroshi Tokuda: "Experimental Consideration on Compressive and Tensile Strength of Extremely Stiff Consistency and Lean Mix Concrete" Journal of the Society of Materials Science, JAPAN. 36. (1987)

Hiroshi Tokuda：“关于极硬稠度和精益混合混凝土的压缩和拉伸强度的实验考虑”材料科学学会杂志，日本。

Hiroshi TOKUDA: "Experimental Consideration on Segregation Tendency of Concrete Aggregate Particles due to Vibrating Compaction" Journal of the Society of Materials Science, JAPAN. 35. 1195-1201 (1986)

Hiroshi TOKUDA：“振动压实引起的混凝土骨料颗粒分离倾向的实验考虑”材料科学学会杂志，日本。

Makoto KAGAYA: "Segregation Phenomena of Various Concrete with Chemical Admixture due to Vibration-Compaction" Proc. of the Int'l Symposium on Cement and Concrete (Beijin). 2. (1986)

Makoto KAGAYA：“由于振动压实导致各种化学外加剂混凝土的离析现象”Proc。