순환골재를 사용한 고강도 철근콘크리트보의 휨거동에 관한 연구A Study on the Flexural Behavior of High Strength Reinforced Concrete Beams Using Recycled Aggregates
- Other Titles
- A Study on the Flexural Behavior of High Strength Reinforced Concrete Beams Using Recycled Aggregates
- Authors
- 김우석; 여진동; 곽윤근; 강현구; 홍성걸
- Issue Date
- 2012
- Publisher
- 대한건축학회
- Keywords
- Recycled Concrete Aggregate (RCA); Construction Waste; Recycling; Percentage of RCA; Flexural Strength; High Strength; 순환골재; 건설폐기물; 재활용; 순환골재 치환율; 휨강도; 고강도
- Citation
- 대한건축학회논문집 구조계, v.28, no.03, pp.23 - 30
- Journal Title
- 대한건축학회논문집 구조계
- Volume
- 28
- Number
- 03
- Start Page
- 23
- End Page
- 30
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/2683
- ISSN
- 1226-9107
- Abstract
- Currently, approximately 90% of waste concrete is being used solely for landfills. Of the total waste concrete only about 14%is made into aggregate and recycled. Such usage is a very low-efficiency method of recycling these materials, under-utilizing an important and valuable asset. Common engineering practice has thus far failed to promote the design of structural members using recycled aggregates. Moreover, appropriate structural design standards for such materials have not been established, despite the number of domestic research studies which have been, and are being, conducted. Such practices overlook the fact that the recycling of aggregate from demolished concrete structures is both structurally and economically beneficial. In making full use of recycled concrete aggregates (RCA) it is necessary to understand its mechanical properties such as compressive, tensile and flexural strengths, and bond strength, as well as its structural performance. The main objectives of this research study are the investigation of flexural performance and the evaluation of the potential applications of RCA on concrete structures. For this,flexural tests of 12 reinforced high-strength concrete beams with RCA were performed. The current test data were examined in terms of flexural strength, along with the data from previously tested reinforced concrete beams with RCA. It is anticipated that this research will play a role of establishing the structural design standards for concrete members with RCA.
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