JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Effects of Mineral Admixtures on Chloride Binding of Offshore Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Effects of Mineral Admixtures on Chloride Binding of Offshore Concrete
Kim, No-Dong; Park, Sang-Joon;
 
 Abstract
The use of industrial by-products is extending steadily in concrete admixtures. However, the effects of these mineral admixtures on the chloride binding in concrete have been insufficiently studied. In this study, the chloride binding effect of various mineral admixtures is evaluated and the results can be drawn as follows. The resistance to chloride penetration was greatly improved when ground granulated blast-furnace slag (GGBS) and silica fume (SF) was used in concrete. The chloride penetration resistance of concrete used fly ash (FA) was improved after 91 days. The chloride penetration depth of concrete used GGBS was lowest and concrete used SF showed second-lowest penetration depth. Concrete used FA having the effect of long-term strength development by pozzolanic reaction showed the lowest resistance to chloride penetration. In case of concrete used only ordinary portland cement, chloride migration coefficient reduced approximately 40.3% when compressive strength increased 10%. Chloride migration coefficients of concrete used FA, SF and GGBS was reduced 24.9%, 23.0% and 14.1%, respectively. Soluble chloride content was various with types and replacements of mineral admixtures in range of 41% to 77% of total chloride content. The chloride binding effect of concrete used FA was highest because concrete used FA was not denser than concrete used GGBS or SF and chloride ion penetrated inside more. However, concrete used GGBS or SF was dense and chloride ion concentrated inner surface portion of specimen. It caused lower chloride binding effect of concrete used GGBS or SF.
 Keywords
Mineral admixtures;Offshore concrete;Chloride penetration depth;Chloride diffusion coefficient;Chloride binding;
 Language
Korean
 Cited by
1.
Si/Al 복합 조성물과 다환형 올리고머 축합물을 혼입한 해양콘크리트의 내염해성 평가에 관한 실험적 연구,김우재;김학영;길배수;

대한건축학회논문집:구조계, 2014. vol.30. 11, pp.53-60 crossref(new window)
2.
수용액내에서 Mg/Al-NO3 및 Ca/Al-NO3 층상이중수산화물(LDHs)의 염소이온 고정화 특성에 관한 실험적 연구,이승엽;양현민;이한승;

한국건축시공학회지, 2016. vol.16. 3, pp.219-227 crossref(new window)
1.
An Evaluation on the Resistance Efficiency of Chloride Ion Infiltration of Offshore Concrete Si/Al Hybrid inorganic salt and Multi-Cyclonic Oligomer Condensate, Journal of the Architectural Institute of Korea Structure and Construction, 2014, 30, 11, 53  crossref(new windwow)
 References
1.
日本土木學會, "コンクリ一ト標準示方書", 1991, p.187

2.
ACI Building Code 318, "Requirement for Structural Concrete and Commentary", American Concrete Institute, p.p.37-38, 1995

3.
O.E. GjOrv : Long-Time Durability of Concrete in Seawater, ACI Journal, Vol.68, No.1, p.p.60-67, 1971.

4.
이종열, 전병용, 김원석, "환경문제 해결을 위한 일본 시멘트 산업의 노력(특집 ; 환경과 콘크리트), 한국콘크리트학회지 제19권 2호, p.p. 22-27, 2007.3.

5.
Carola K. Edvardsen, Y. J. Kim, S. J. Park, S. K. Jeong, H. C. Im, Busan-Geoje Fixed Link Concrete Durability Design for the Bridges and Tunnels", ITA WTC, April. 2006.

6.
문한영, 이승태, 김홍삼, "시멘트 경화체의 해수침식에 의한 성능저하 및 저항성 평가", 한국콘크리트학회논문집, 제13권2호, p.p.175-183, 2001

7.
牛山宏隆, 港灣工事に用いるセメント, セメント.コンクリ一ト, No.594, p.p.80-83, 1996.

8.
尾野幹也, 氷鴨正久, 大塚邦夫, 伊藤隆明:セメント硬化體に與する海水の化學的侵蝕のメカニズム,セメント技術年報 32, p.p. 299-302, 1978.

9.
Smolczyk, H. G., "Chemical Reactions of Strong Chloride Solution with Concrete", Proc. Fifth International Symposium on the Chemistry of Cement, Tokyo, Supplementary Paper III-31, 1968.

10.
Al-Amoudi, O.S.B., Maslehuddin M., Abdul-Al, Y.A.B., "role of Chloride Ions on Expansion and Strength Reduction in Plain and blended Cement in sulfate Environments", Construction and Building Materials, Vol.p, No.1, p.p.25-33, 1995. crossref(new window)

11.
Gimenez S., Garcia S., Blanco M. T., Palomo A., "The Behaviour of a Low Energy in NaSO4 and Sea Water Media", Cement and Concrete Research, Vol.22, p.p.793-803, 1992 crossref(new window)

12.
한국콘크리트학회, "최신콘크리트공학", p.p.122-137, 2004

13.
한국콘크리트학회, "콘크리트표준시방서해설-재료시공 편", p.p.337-351, 2009

14.
CEB-FIP Model Code 1990, Part 1, 2.1:Concrete Classification and Constitutive Relation, Committee Euro International Du Beton, p.p.51-52, June, 1991

15.
박정준, 고경택, 김도겸, 김성욱, 하진규, "혼화재를 혼입한 콘크리트의 염화물 고정화에 관한 실험적 연구", 한국콘크리트학회 2001년 가을학술발표대회논문집, 제13권2호, p.p.787-792, 2001