JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Study on the Spalling Properties of High-Performance Concrete with the Kinds of Aggregate and Polypropylene Fiber Contents
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Study on the Spalling Properties of High-Performance Concrete with the Kinds of Aggregate and Polypropylene Fiber Contents
;;;;;
  PDF(new window)
 Abstract
A spalling is defined as the damages of concrete exposed to high temperature during the fire by causing cracks and localized bursting of small pieces of concrete. It is reported that spalling is caused by the vapor pressure and polypropylene(PP) fiber has an important role in protecting from spalling. This paper is a study on the properties and spalling resistance of high-performance concrete with the kinds of aggregate and the contents of PP fiber. According to the experimental results, concrete contained no PP fiber take place in the form of the surface spalling and the failure of specimenns after fire test regardless of the kinds of aggregate. Concrete contained more than 0.05% of PP fiber with the aggregate of basalt does not take place the spalling, while the concrete using granite and limestone does the surface spalling. It is found that residual compressive strength after exposed at high temperature has 50~60% of its original strength. Although specimens after exposed at high temperature is cured at water for 28days, they do not recover their original strength.
 Keywords
spalling properties;kinds of aggregate;PP fiber;high-performance concrete;
 Language
Korean
 Cited by
1.
복합섬유(PP, NY)를 혼입한 60, 80MPa 3성분계 고강도콘크리트의 내화특성,김성덕;김상연;배기선;박수희;이범식;

한국건축시공학회지, 2010. vol.10. 4, pp.3-9 crossref(new window)
 References
1.
콘크리트학회지, 1998. vol.10. 6, pp.5-10

2.
건축재료(제11장 석재), 대한건축학회 편, 1998. pp.249-267

3.
日本コンクリ-ト工學, 1998. vol.36. 1,

4.
日本建築學會大會學術講演梗槪集, 1991. pp.739-740

5.
日本建築學會大會學術講演梗槪集, 1998. pp.223-224

6.
日本建築學會大會學術講演梗槪集, 1994. pp.331-338

7.
日本建築學會大會學術講演梗槪集, 1998. pp.63-66