Study on Development of Concrete Composite Pipe with High Strength and Resistance to Acid Attack

高强耐酸混凝土复合管的研制

• 批准号: 63850107
• 负责人: KAWAKAMI Makoto
• 金额: $ 2.3万
• 依托单位: Akita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63850107/
• 关键词: Expansive Concrete; Chemical Prestress; Polymer Mortar; Composite Pipe; Cracking Strength; Mechanical Prestress; Optimum Design; chemical Attack; ケミカルアタック; 破壊強度; 外圧強度; 膨張材

1. Expansive concrete was used for reinforced concrete pipe in order to induce chemical prestress and increase cracking strength. Firstly physical and mechanical properties of expansive concrete was clarified. Secondly a pipe composed of ordinary concrete and expansive concrete was made and distribution of chemical prestress were analyzed. Thirdly the effects of use of expansive concrete for cracking strength were confirmed by loading test.2. PC wire was wrapped round the reinforced concrete pipe and was tensioned and anchored in order to induce mechanical prestress. The relations between mechanical prestress and cracking strength of the pipes were clarified.3. Polymer mortars as lining material for reinforced concrete pipe were investigated. Physical properties, resistance to acid attack, bond strength of polymer mortar and base reinforced concrete pipe were clarified.4. A composite pipe with high strength and resistance to acid water was designed, made and tested. The optimum design on the composite pipe was performed by considering physical properties and mechanical characteristics of constituting materials and their costs.

1.在钢筋混凝土管道中采用膨胀混凝土，以产生化学预应力，提高管道抗裂强度。首先阐述了膨胀混凝土的物理力学性能。其次，制作了由普通混凝土和膨胀混凝土组成的钢管，分析了化学预应力的分布情况。再次，通过荷载试验验证了膨胀混凝土对混凝土抗裂强度的影响.预应力钢丝缠绕在钢筋混凝土管上，张拉锚固，以产生机械预应力。阐明了机械预应力与钢管抗裂强度的关系.对聚合物砂浆作为钢筋混凝土管道内衬材料进行了研究。阐述了聚合物砂浆与基层钢筋混凝土管的物理性能、耐酸腐蚀性能、粘结强度.设计、制造并试验了一种高强度耐酸性复合管。综合考虑组成材料的物理力学性能和成本，对复合管进行了优化设计。

项目成果

Makoto KAWAKAMI, Osamu SHINOE & Mamoru WATANABE: "Strengths of Chemically and Mechanically Prestressed Hume Pipes" CAJ Procs. of Cement & Concrete. Vol. 43. 572-577 (1989)

川上诚、筱江修

Makoto KAWAKAMI,Kazimierz GAMSKI,Hiroshi TOKUDA,Makoto KAGAYA: "Chemical Prestress and Strengths of Reinforced Concrete Pipes Using Expansive Concrete" Materials&Structures. 22. 83-90 (1989)

Makoto KAWAKAMI、Kazimierz GAMSKI、Hiroshi TOKUDA、Makoto KAGAYA：“使用膨胀混凝土的钢筋混凝土管的化学预应力和强度”材料

Makoto KAWAKAMI,Osamu SHINOE,Mamoru WATANABE: "Strengths of Chemically and Mechanically Prestressed Hume Pipes" セメント・コンクリ-ト論文集. 43. 572-577 (1989)

Makoto KAWAKAMI、Osamu SHINOE、Mamoru WATANABE：“化学和机械预应力休谟管的强度”水泥和混凝土论文。 43. 572-577 (1989)

Makoto KAWAKAMI,Hiroshi TOKUDA,Reijiro NASU: "Coating Technologies for Sewer Pipe" ACI Cincrete International:Design&Construction. 11. 86-88 (1989)

Makoto KAWAKAMI、Hiroshi TOKUDA、Reijiro NASU：“下水道管道涂层技术” ACI Cincrete International：设计

川上洵,嵯峨正巳,松田直樹: 土木学会東北支部技術研究発表会講演概要. (1989)

Kawakami、Masami、Saga、Naoki Matsuda：日本土木工程师学会东北分会技术研究报告的演讲摘要（1989 年）。