Development of cement for high-performance concrete by modifying grading and mineral composition

通过改变级配和矿物成分开发高性能混凝土水泥

• 批准号: 05555156
• 负责人: TOMOSAWA Fuminori
• 金额: $ 8.58万
• 依托单位: UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05555156/
• 关键词: Wide-Graded Cement; Mineral Composition Modified Cement; High Strength Concrete; Self-compacting Concrete; Coarse Cement; Fine Particle Addition; Workability; Strength in Long Term Period; セメント; 粒度分布; 鉱物組成; 流動性; 収縮; 水和熱; 力学特性; 耐久性; 高性能AE減水

This research deals with development of wide-graded cement, development of mineral composition modified cement, development and evaluation of cement modified both grading and mineral composition, and practical study on concrete using cement modified both grading and mineral composition. The results are summarized as follows :1.Wide-graded cement requires a low admixture dosage to obtain high flowability concrete, due to its high compactability, and saves power consumption of the mixer, as it reduces the viscosity of concrete.2.Cement of which belite content is high enables the reduction of heat of hydration and autogenous shrinkage.3.Though the compressive strength development of concrete made using wide-graded cement is slow at early ages, a high long-term strength can be expected. It develops a compressive strength of more than 120MPa at 91 days.4 Resistance to freezing and thawing of concrete made using wide-graded cement is excellent, and its resistance to carbonation practically poses no problem.

本研究涉及宽级配水泥的发展，矿物组成改性水泥的研制，级配与矿物组成双改性水泥的开发与评价，级配与矿物组成双改性水泥混凝土的实用化研究。研究结果如下：1.宽级配水泥密实度高，需要较低的外加剂用量才能获得高流动性混凝土；2.贝利特含量高的水泥可以降低水化热和自收缩，降低混凝土的粘性；3.尽管宽级配水泥配制的混凝土早期抗压强度发展缓慢，但可以获得较高的长期强度。它在91天内的抗压强度超过120 Mpa。4使用宽级配水泥制成的混凝土的抗冻融性能优异，其抗碳化实际上不存在问题。

项目成果

陳 庭: "高強度・高流動コンクリート用バインダーの開発に関する研究(その4)" 日本建築学会大会学術講演梗概集. A. 989-990 (1993)

陈挺：《高强高流混凝土粘结剂的开发研究（第4部分）》日本建筑学会会议学术讲座摘要A.989-990（1993）。

Fuminori Tomosawa: "Development of high strength concrete using wide-graded cement" Proceedings of 4th International Symposium on Utilization of High-Strength Concrete. (1996)

Fuminori Tomosawa：“使用宽级配水泥开发高强度混凝土”第四届国际高强度混凝土利用研讨会论文集。

陳 庭: "粒度調整セメントのレオロジー・付着特性に関する研究" 日本建築学会大会学術講演梗概集. A. 837-838 (1995)

陈婷：“颗粒调节水泥的流变性和粘合性能的研究”日本建筑学会会议论文集A.837-838（1995）。

Chen Ting: "Development of binders for high-strength and high-flowability concrete (part 4)" Summaries of Technical Papers of Annual Meeting of AIJ. A. 989-990 (1993)

陈婷：《高强高流动性混凝土粘结剂的研制（第4部分）》AIJ年会技术论文摘要。

細谷俊夫: "高強度・高流動コンクリート用バインダーの開発に関する研究(その5)" 日本建築学会大会学術講演梗概集. A. 991-992 (1993)

Toshio Hosoya：“高强度和高流动性混凝土粘合剂的开发研究（第 5 部分）”日本建筑学会会议记录 A. 991-992（1993 年）。