Browse > Article

Spalling Properties of the High Strength Concrete Containing PP Fiber Subjected to Fire Mixture Factors and Drying Condition  

Han, Cheon-Goo (청주대학교 건축공학부)
Han, Min-Cheol (청주대학교 건축공학부)
Song, Yong-Won ((주)삼표 기술연구소)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.4, 2008 , pp. 115-122 More about this Journal
Abstract
This paper is to investigate the affecting factors on spalling of the high strength concrete including W/B, air content and moisture condition as well as PP fiber contents subjected to fire. An increase with 0.05% of PP fiber resulted in a reduction of slump flow by as much as 11%. Ten percent of air contents due to excessive amounts of AE agent does not lead to variance of slump flow, regardless of PP fiber content. For the effect of the compressive strength, high strength concrete with 15, 25 and 35% of W/B gained 60 MPa~100 MPa of the compressive strength. High strength concrete with H-air had half of compressive strength of that with L-air due to large amount of air. Fire test was conducted in accordance with KS F 2257-1 for 1 hour. Spalling did not occur with all specimens containing more than 0.10% of PP fiber except those with 15% of W/B. Moreover, it is interesting to note that the specimens with more than 10% of air content and with oven dried condition, respectively, had no spalling even if the content of PP fiber is 0.05 vol.%.
Keywords
Air content; Drying states; High performance concrete; Spalling; Water-binder ratio;
Citations & Related Records
연도 인용수 순위
  • Reference
1 한천구, 양성환, 이병렬, 황인성; W/C 및 폴리프로필렌 섬유의 혼입률 변화에 따른 콘크리트의 고온시 성상, 대한건축학회 논문집(구조계), Vol. 16, No. 10, 2000, pp. 81-88
2 Pierre Kalifa, Gregoire Chene, Christophe Galle, "High temperature behaviour of HPC with polypropylene fibres from spalling to microstructure", Cement and Concrete Research 31, 2001, pp. 1487-1499   DOI   ScienceOn
3 Gary R. Consolazio, Michael C. McVay, Jeff W. RishIII, "Measurement and prediction of pore pressures in saturated cement mortar sujected to radiant heating", ACI Materials Journal, Vol. 95, 1998, pp. 525-536
4 C.G. Han, Y.S. Hwang, S.H Yang, N. Gowripalan, "Performance of spalling resistance of high performance concrete with polypropylene fiber contents and lateral confinement", Cement and Concrete Research, 35, 2005, pp. 1747-1753   DOI   ScienceOn
5 Long T. Phan, "High performance concrete at high temperature an overview", NIST report, 2002
6 한천구, 황인성, "고성능 콘크리트의 폭렬 방지에 관한 연구", 계간 건자재, 99년 봄호, 통권 17호, 1999, pp. 226-235
7 이병열, "화재시 고성능 콘크리트의 폭렬방지에 관한 연구", 청주대학교 박사학위논문, 2001.12
8 한천구, "비폭열성 콘크리트", 콘크리트 학회지, 1998, pp. 5-10
9 J.G. Sanjayan, "Design against spalling of concrete in fire", Proceeding of the First Korea-Australia Workshop on Recent Advances in High Performance Concrete, 2005, pp. 155-169
10 화재와 콘크리트, 콘크리트학회지 특집기사, Vol. 14, No. 2, 2002
11 Rosa Maria Espinosa, Lutz Franke, "Influence of the age and drying process on pore structure and sorption isotherms of hardened cement paste", Cement & Concrete Research 36, 2006, pp. 1969-1984   DOI   ScienceOn
12 황인성, "화재시 고성능 콘크리트의 폭렬에 미치는 재료 및 배합요인의 영향", 청주대학교 석사학위논문, 1999.12
13 송훈, "화재시 고강도 콘크리트의 내화성능에 관한 연구", 동경대학 박사학위 논문, 2003