고분말도 시멘트와 플라이애시를 사용한 콘크리트의 물리적 특성 = Physical Characteristics of Concrete Using High-Fineness Cement and Fly Ash

다국어 초록 (Multilingual Abstract)

The cement industry is considered a major industry for reducing greenhouse gases, increasing the amount of binding materials that can replace cement in concrete is known as the most effective method for reducing carbon dioxide. Therefore, research is being carried out to utilize large quantities of by-products that can be used as alternatives to cement. However, there are problems with reduced strength at early age and retarded setting for major reasons that do not increase the amount of mixture of binders used to replace cement. Thus, in this study, normal cement and high-fineness cement were used and physical properties were reviewed by placing differences in fly ash usage depending on the type of cement. As a result, the characteristics of strength were similar, and the hydration temperature was the same level. Also, the durability test showed that the length change, carbonation resistance were better than those of normal cement. Therefore, it is confirmed that the use of high-fineness cement is effective to reduce the amount of cement used and using more by-products.

국문 초록 (Abstract)

시멘트 산업은 온실가스 감축을 위한 주요 산업분야로 고려되고 있으며, 콘크리트에 시멘트를 대체할 수 있는 재료의 사용량을 증가시키는 것은 이산화탄소 감축을 위해 효과적인 방법으로 알려져 있다. 따라서 시멘트의 일부를 대체하여 사용할 수 있는 산업부산물을 다량으로 활용하기 위한 연구가 진행되고 있다. 그러나 산업부산물의 혼합량을 증가시키지 못하는 큰 이유로 초기강도 저하와 응결지연에 대한 문제점이 있다. 따라서 이 연구에서는 보통 시멘트를 사용한 경우와 고분말도 시멘트를 사용한 경우에 대해 플라이애시의 사용량에 차이를 두고 물리적 특성을 검토하여, 시멘트의 사용량을 줄이고 산업부산물을 다량으로 사용하기 위한 방안으로서, 고분말도 시멘트를 활용한 결과에 대한 기초 자료를 제시하였다.

참고문헌 (Reference)

1 김주형, "플라이애시 종류에 따른 플라이애시 모르타르의 특성에 대한 연구" 한국건설순환자원학회 4 (4): 439-445, 2016

2 하정수, "고분말도 시멘트와 플라이애시를 치환한 콘크리트의 조기강도 발현 특성" 한국구조물진단유지관리공학회 22 (22): 154-160, 2018

3 DP Bentz, "Thermal properties of high-volume fly ash mortars and concretes" SAGE Publications 34 (34): 263-275, 2010

4 W. Chen, "The hydration of slag, part 1: reaction models for alkali-activated slag" Springer Science and Business Media LLC 42 (42): 428-443, 2007

5 Noriko F, "The asia-pacific partnership on clean development and climate: what is is and what it is not" Centre for European Policy Studies (BE) 12-, 2007

6 Ministry of Land, Infrastructure and Transport, "Standard specification of concrete"

7 Kim JS, "Specification and certification of eco-friendly concrete" Korea Institute for Structural Maintenance and Inspection 649-650, 2016

8 Kim HS, "Properties of strength development of concrete using high fineness cement and blast furnace slag" Korea Institute of Building Construction 197-198, 2018

9 Lee YD, "Properties of strength development concrete using high fineness cement and fly ash" Architectural Institute of Korea 508-, 2018

10 "Online Archive of Statement emission statistics in Korea" Greenhouse Gas Inventory & Research Center of Korea

11 Berry EE, "Hydration in high-volume fly ash concrete binders" 91 (91): 382-389, 1994

12 Korea Concrete Institute, "Engineering of concrete" Kimoondang 420-456, 2011

13 Korea Concrete Institute, "Engineering of concrete" Kimoondang 556-564, 2011

14 Korea Concrete Institute, "Engineering of concrete" Kimoondang 40-45, 2011

15 Korea Concrete Institute, "Engineering of concrete" Kimoondang 144-147, 2011

16 Korea Concrete Institute, "Engineering of concrete" Kimoondang 112-117, 2011

17 Korea Concrete Institute, "Engineering of concrete" Kimoondang 108-110, 2011

18 Han CG, "Eco-friendly ready miaxed concrete using waste materials and by-products" 28 (28): 20-25, 2016

19 Lee SH, "Consideration of the significance of admixture and binder in cement and concrete" Korea Cement Association 38-46, 2011

20 Kumar Mehta P, "Concrete; Microstructure, Properties, and Materials" McGraw-Hill 213-, 2005

21 Korea Concrete Institute, "Concrete and environment" Kimoondang 45-60, 2016

22 Choi WC, "Concrete : crack, deterioration and measures" Donghwa Technology Publishing Co., Ltd 114-118, 2010