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Recycle System on Materials for Concrete and Structures

混凝土和结构材料回收系统

基本信息

批准号：
07305053
负责人：
OKAMURA Hajime
金额：
$ 10.88万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

The objective of this study Is to develop not only recycle system for concrete structures but also recycle system for material resources by concrete engineering, which will lead to the reduction of load against the global environment. Ecological Concrete Is defined as a concrete consisting of materials which Is waste or by-product from various kinds of Industries or houses. And It was Investigated how to realize the system In view point of technical, social and governmantal aspects.(1) Investigation and analysis on available material resourcesThe Investigation on characteristics of such materials as concrete lump from demolished structures, recycled aggregate, coal ash, sludge In ready-mixed concrete plant, eco-cement made from sewage and household disposal was carried out. It was found that some materials which are against the standard and code can satisfy the requirements for concrete and structures.(2) development of new codeConcrete structures were classified according to the required performance of concrete and performance-based material evaluation system was developed. It can lead to the wide and suitable application of the variety of materials, which are against the present standard and code.(3) design of recycle systemIt Is needed for promoting the recycle system to establish various kinds of system such as economical, material transportation, Information exchange and governmental system. The design of total system and policy toward future promotion was carried out.

本研究的目的不仅是开发混凝土结构的回收系统，而且是混凝土工程的材料资源回收系统，这将导致减少对全球环境的负荷。生态混凝土是指由各种工业或住宅的废弃物或副产品组成的混凝土。并从技术、社会、政府等方面对如何实现这一系统进行了探讨。(1)可利用材料资源调查与分析拆除建筑物混凝土块、再生骨料、粉煤灰、污泥等材料特性调查预拌混凝土厂利用生活污水和生活垃圾生产生态水泥。结果表明，一些不符合标准和规范的材料可以满足混凝土和结构的要求。(2)新规范的发展根据混凝土的性能要求对混凝土结构进行了分类，并开发了基于性能的材料评估系统。它可以使各种材料得到广泛而适用的应用，而这些材料与现行的标准和规范不符。(3)循环体系设计要促进循环体系的发展，需要建立经济、物流、信息交流、政府等多种体系。对今后的推广工作进行了总体制度和政策设计。