APPLICATION OF HIGH TOUGHNESS CONCRETE FOR RC MEMBERS

高韧性混凝土在钢筋混凝土构件中的应用

• 批准号: 10650569
• 负责人: KITSUTAKA Yoshinori
• 金额: $ 2.05万
• 依托单位: TOKYO METROPOLITAN 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-10650569/
• 关键词: high toughness concrete; fiber reinforced concrete; right weight concrete; fracture mechanics; bond property; earthquake walls; RC members; panel members; 収縮特性; 高靱性; コンクリート; 軽量化; 省エネルギー

In this research, experiments on the improvement of toughness of high strength concrete were performed, and the application on the high toughness concrete for the RC members was investigated.The research results are as follows, 1) Mixing method and the relation of the specific gravity and strength properties for the high-strengthened right weight aerated concrete were cleared, 2) Influences of fiber contents and curing age on the fracture parameters of high-strength concrete were clarified, 3) Influence of the matrix strength, air content and fiber content on the fracture properties of high-strengthened right-weight concrete was cleared, 4) Influence of fiber content, strength and the adding volume of air forming agent on the flexural properties of high-strengthened right-weight concrete panel was clarified, 5) Bond properties of high-strengthened right-weight concrete was examined and the relationship of fracture toughness and bond properties was indicated, 6) Application of ultra-light weight fiber reinforced concrete for the increased earthquake resisting walls was studied and the efficiency of the use of ultra-light weight fiber reinforced concrete was cleared, 7) Fracture parameters of concrete was surveyed and the evaluation method of the fracture parameter for high toughness concrete was proposed.

本研究对高强混凝土进行了提高韧性的试验研究，并对高强混凝土在钢筋混凝土构件中的应用进行了探讨。研究结果如下：1)明确了高强轻质加气混凝土的掺合方式及比重与强度性能的关系；2)明确了纤维掺量和养护龄期对高强混凝土断裂参数的影响；3)明确了基体强度、空气含量和纤维掺量对高强轻质加气混凝土断裂性能的影响；5)考察了高强度轻量混凝土的粘结性能，指出了高强度轻量混凝土的断裂韧性与粘结性能之间的关系；6)研究了超轻纤维混凝土在增强型抗震墙中的应用，明确了超轻纤维混凝土的使用效率；7)对混凝土的断裂参数进行了调查，提出了高韧性混凝土断裂参数的评价方法。

项目成果

吉岡昌洋,橘高義典 他: "超軽量繊維補強コンクリートの付着性状"コンクリート工学年次論文報告集. Vol.22, No.2. 1261-1266 (2000)

Masahiro Yoshioka、Yoshinori Tachibana 等：“超轻纤维增强混凝土的粘合性能”混凝土工程年论文集第 22 卷，第 1261-1266 期（2000 年）。

T.Oh-oka, Y.Kitsutaka, et al.: "Seismic Behavior of Concrete Shear Walls Using Foamed Waste Glass Sand"Proceedings of the Japan Concrete Institute. Vol.22, No.2. 1219-1224 (1999)

T.Oh-oka、Y.Kitsutaka 等人：“使用泡沫废玻璃砂的混凝土剪力墙的抗震性能”日本混凝土学会会议录。

Y.Kitsutaka: "Modeling of Tension Failure and Fracture Mechanics Parameter"Concrete Journal. Vol.37, No.9. 25-28 (1999)

Y.Kitsutaka：“拉伸破坏和断裂力学参数的建模”混凝土杂志。

Kitsutaka, Y、et al.: "Application of Ultra-light Weight Fiber Reinforced Concrete for the Increased Earthquake Resisting Walls"Proceedings of the 12th World Conference on Earthquake. Vol.22, No.2. 2470.1-8 (2000)

Kitsutaka, Y 等人：“超轻纤维增强混凝土在增强抗震墙中的应用”第 12 届世界地震会议论文集，第 22 卷，第 2470.1-8 号（2000 年）。

吉岡昌洋,橘高義典,高橋仁智: "高強度化軽量繊維補強コンクリートの破壊特性(その1強度特性に及ぼす空気量の影響)"日本建築学会大会学術講演梗概集. A-1. 229-230 (1999)

Masahiro Yoshioka、Yoshinori Tachibana、Hitoshi Takahashi：“高强度轻质纤维增强混凝土的断裂特性（第 1 部分：空气含量对强度特性的影响）”日本建筑学会 A-1 会议学术讲座摘要。 229-230 (1999)