Study on large quantity use of fly ash to concrete with constant cement content

大量使用粉煤灰制备恒水泥掺量混凝土的研究

• 批准号: 10650566
• 负责人: MATSUFUJI Yasunori
• 金额: $ 2.5万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650566/
• 关键词: fly ash; constant cement contcnt; large quantity use; mix proportion principle; concrete; fresh concrete; compressive strength; durability

The purpose of this study was to establish the mix proportion principle for the concrete incorporaing large quantity of fly ash with constant cement content. The properties of fresh concrete, compressive strength and carbonation of such concretes were investigated. Many results were obtained, for example, as follows.1. The general idea and basic equation for the mix proportion design for the concrete incor-poraing large quantity of fly ash with constant cement content was shown.2. The relationship between the mix proportion and the properties of fresh concrete, for ex-ample ordinary concrete, middle fluidity concrete and high fluidity concrete, was clarified.3. It was clarified that the larger the fly ash content, the larger the compressive strength co-mpared with non fly ash concrete, even in the lower temperature ambience, from early to long term.4. The equi-potential line on compressive strength could be calculated on the basis of the experimental results.5. The mutual influence of the consumption of Ca(OH)ィイD22ィエD2 and the reduction of voids due to the pozzolanic reaction on carbonation of concrete using large quantity of fly ash was clar-ified quantitatively. And the equi-potential line on carbonation could be calculated.

研究目的是建立大掺量粉煤灰混凝土在水泥用量不变的情况下的配合比原则。研究了新拌混凝土的性能、抗压强度和碳化性能。获得了如下结果：1.提出了等水泥用量大掺量粉煤灰混凝土配合比设计的一般思路和基本方程.阐明了新拌混凝土的配合比与普通混凝土、中流动性混凝土和大流动性混凝土性能的关系.试验结果表明，粉煤灰掺量越大，混凝土的抗压强度越高，即使在低温环境下，从早期到长期，与无粉煤灰混凝土的抗压强度相当.根据试验结果可以计算出抗压强度的等势线.定量地阐明了Ca（OH）_2D_2D_2的消耗量和火山灰反应引起的孔隙减少量对大掺量粉煤灰混凝土碳化的相互影响。并计算了碳酸化反应的等势线。

项目成果

松藤泰典,小山智幸,ほか: "フライアッシュ外割大量使用コンクリートの調合に関する研究-単位水量165kg/m^3における調合則-"日本建築学会大会学術講演梗概集. A. 433-434 (1999)

松藤泰则、小山智之等：《使用大量粉煤灰拌制混凝土的研究——单位水量165kg/m^3的拌合规则——》日本建筑学院学术讲座摘要日本会议。A.433-434（1999）

Yasunori Matsufuji, Tomoyuki Koyama, et al.,: "Mix proportion principle of concrete containing large quantity of fly ash"Technology Reports of Kyushu University. Vol.72. 703-710 (1999)

松藤泰典、小山智之等：“含大量粉煤灰混凝土的配合比原理”九州大学技术报告。

松藤泰典,小山智幸,ほか: "フライアッシュの大量混合を可能にするコンクリートの調合則"九州大学工学集報. 72-6. 703-710 (1999)

Yasunori Matsufuji、Tomoyuki Koyama 等人：“实现粉煤灰质量混合的混凝土混合规则”九州大学工程通报 72-6 (1999)。

Yasunori Matsufuji, Tomoyuki Koyama, et al.,: "A study on a mix proportion principle of concrete incorporaing large quantity of fly ash with constant cement content A mix proportion principle of concrete on water content per unit volume of concrete is 165

Yasunori Matsufuji、Tomoyuki Koyama 等人：“掺入大量粉煤灰且水泥含量恒定的混凝土配合比原则的研究 混凝土配合比原则对单位体积混凝土含水量的影响为 165

松藤泰典,小山智幸,ほか: "石炭灰を大量に用いたコンクリートの初期性状に関する研究"セメント・コンクリート論文集. No.52. 922-927 (1998)

Yasunori Matsufuji、Tomoyuki Koyama 等人：“使用大量粉煤灰的混凝土初始性能的研究”《水泥和混凝土论文》第 52. 922-927 号（1998 年）。