Investigation on spalling resistance of ultra-high-strength concrete under rapid heating and rapid cooling
Source abstract
Abstract
Effects of the fiber type, dosage and length on the explosive spalling of ultra-high-strength concrete under rapid heating and rapid cooling were experimentally investigated. The mechanism of spalling resistance was examined by comprehensive thermal analysis, X-ray diffraction analysis, scanning electron microscopy and mercury porosimetry. The burst time is extended but the spalling is unaffected by the addition of steel fiber. The spalling resistance is improved with the addition of polypropylene (PP) fiber or PP and steel fibers. Ultra-high-strength concrete with 0.20% (vol.) PP fiber has excellent spalling resistance. The resistance to explosive spalling is enhanced with 12- or 19-mm-long PP fibers. PP fiber improves the spalling resistance mainly through the formation of tubular channels.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fire effects on concrete materials · Engineering and Material Science Research · Fire dynamics and safety research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Comparison between high-strength concrete and normal-strength concrete subjected to high temperature10.1007/BF02485969 ↗
2. The fire in the channel tunnel10.1016/S0886-7798(02)00014-7 ↗
3. The influence of high temperature on explosive spalling behavior and mechanical properties of reactive powder concrete
4. Analysis of pore pressure, thermal stresses and fracture in rapidly heated concrete
5. Harmarthy · 1965 · 74
6. Spalling and pore pressure in HPC at high temperature10.1016/S0008-8846(00)00384-7 ↗
7. S. Ishikawa, Explosion preventive structure of high-strength concrete method. JP2002-206295.
8. Fibre motar composites under fire conditions: effects of ageing and moisture content of specimens10.1007/BF02473214 ↗
9. Explosive spalling of concrete columns with steel and polypropylene fibres subjected to severe fire10.1260/2040-2317.3.1.95 ↗
10. Optimization of the type and amount of polypropylene fibres for preventing the spalling of lightweight concrete subjected to hydrocarbon fire10.1016/S0958-9465(03)00085-4 ↗
11. Research progress of HSC/HPC high temperature cracking mechanism
12. Spalling phenomena of HPC and OC
13. Fire behavior of high-performance concrete made with silica fume at various moisture contents
14. Effects of moisture contents and fibers on properties of high performance concrete at high temperatures
15. R. Felicetti, P.G. Gambarova, M.P.N. Sora, G.A. Khoury, Mechanical behaviour of HPC and UHPC indirect tension at high temperature and after cooling. 5th RILEM Symp. Fibre-Reinforced Concretes (FRC) – BEFIB (2000) 749–760.
16. Effect of transient high temperature on high strength concrete
17. Momose · 2003 · 25(1 · 995
18. High-temperature behavior of HPC with polypropylene fibres from spalling to microstructure10.1016/S0008-8846(01)00596-8 ↗
19. Fibre motar composites under fire conditions: effects of ageing and moisture content of specimens10.1007/BF02473214 ↗
20. Mechanical characteristic of high performance fiber reinforced concretes at elevated temperatures
21. Relationship between internal vapor pressure and explosive spalling of fiber reinforced concrete
22. Munehiro · 2006 · 32 · 1
23. Fibers: percolation, and spalling of high performance concrete
24. Research on the thermal expansion performance of cement-based materials