Browse > Article
http://dx.doi.org/10.5345/JKIC.2004.4.1.141

A Study Properties of concrete Recycling Cockle Shells as Fine Aggregate  

Kim, Jeong-Sup (조선대학교 건축학부)
Kim, Kwang-Sup (조선대학교 대학원)
Kim, Pan-Sun (조선대학교 대학원)
Publication Information
Journal of the Korea Institute of Building Construction / v.4, no.1, 2004 , pp. 141-146 More about this Journal
Abstract
1) As a result of compressive strength experiment, rupture compressive strength showed more increases in specimens of 15% and 20% of Cockle shells in those of non-mixture. Comparing compressive strength between no-mixed Specimens and Specimens of containing Cockle shells, Specimens containing Cockle shells showed higher strength in 60 days and 90 days of age, and as ark Cockle is contained and age is elapsed, compressive strength is also increased In addition, estimation of compressive strength by reactive hardness in concrete using Cockle shells as aggregate shows low reliability. 2) As a result of experimenting compressive strength after heating, Specimens containing Cockle shells and non-mixed Specimens showed similar strength at $200^{\circ}C$, but compressive strength was lowered as content of Cockle shells increased at over $400^{\circ}C$ and heating temperature was higher. It is because Cockle shells was fired by heat and then its adhesion and bonding capacity were lost. 3) To sum up the above experimental results, it is found that using splitted Cockle shells as aggregate for concrete by 10%~20% showed the same or higher compressive strength and shear strength as concretes using general aggregate and it can be used as substitute aggregate of concrete. It is considered that for future use of splitted Cockle shells as substitute concrete aggregate, continuous researches of its durability, applicability and economy are needed.
Keywords
Fine Aggregate; Cockle Shells;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김정섭외 4인, "콘크리트 응력 추정에 따른 초음파속도와 반발경도의 상쇄효과에 관한 실험적 연구", 대한건축학회논문집 제12권11호, pp. 201-210, 1996. 11.
2 양은익외 2인, "굴패각을 혼입한 콘크리트의 역학적 특성 조사", 대한토목학회 논문집, 제21권, 6-A호, pp. 773-784, 2001. 11.