Construction of the Effective Use System for Concrete Waste and Construction Soil

1. 对九州地区工业废弃物和建筑土现状进行了调查，并对国土交通部的“副产物实况调查”数据和九州地区建筑副产物现状进行了调查。因此，列举了这些问题，以促进有效利用一种建筑副产品。混凝土废弃物和建筑土有效利用体系的考察作为有效利用的政策，从“减量化”、“再利用”和“再循环”的角度对该体系进行了考察。特别对混凝土废料作混凝土骨料进行了研究。为了建立这个系统，不应该只检查混凝土废物的使用情况，但有必要在考虑生命周期流程（计划、设计、施工和拆除）的所有阶段的“减少”、“再利用”和“回收”的基础上进行检查。作为这些检查的结果，展示了混凝土废料的循环系统。并以建筑土“减量化”、“再利用”、“再循环”等技术为实例，说明了建设信息系统的重要性。混凝土废料有效利用技术的探讨（一）基层材料的应用为了提高混凝土废料的附加值，通过改进混凝土废料的粉碎方法和基层材料的品位，论证了基层材料应用的可能性。(2)再生骨料的质量评价及再生骨料混凝土的特性。对各种再生骨料进行了物理性能试验；了解了再生骨料的质量。在此基础上，提出了了解这些品质的简单测试方法。考虑再生骨料混凝土的性能及与天然骨料的替代率，对再生骨料混凝土的性能进行了研究。结果表明，再生骨料按要求的性能作为构件使用，其使用扩展是可以预期的。少

1. The state of Industrial waste and the construction soil in Kyushu regionThe data of "A fact-finding of by-product" made by Ministry of Land, Infrastructure and Transport, and a present state of construction by-product in Kyushu region was investigated. As a result, those problems were enumerated in order to promote effective use of a construction by-product.2. An examination on the effective use system of concrete waste and the construction soilAs a policy of effective use, that system was examined from the point of view of "reduce", "reuse" and "recycle". Especially the concrete waste was examined to use as concrete aggregate. In order to build up that system, only the usage of a concrete waste should not be examined, but it is necessary to examine based on taking into consideration "reduce", "reuse", and "recycle" in all the stages of the lifecycle flow (plan, design, construction and dismantle). As a result of those examinations, the circulation system of a concrete waste was sho … More wn. Then, the techniques for using construction soil for "reduce", "reuse" and "recycle" were given as actual examples, the importance on constructing an information system was shown.3. An examination on the effective use technique of concrete waste(1) Application for the base course materialIn order to raise the added value of concrete waste, the possibility for applying the base course material was shown by improving of crush methods on concrete waste and the grade of the base course material.(2)The quality evaluation of recycled aggregate and characteristics of recycled aggregate concreteThe physical property tests for various kinds of recycled aggregate were performed ; the quality of recycled aggregate was understood. Then the simple test method for understanding those qualities was proposed.Moreover, characteristics of recycled aggregate concrete were examined considering those qualities and replacement ratio with natural aggregate. It is shown that the use expansion of recycled aggregate is expectable, by using as a member according to a required performance. Less