Relationship between inter-aggregate spacing and the optimum fiber length for spalling protection of concrete in fire

Heo, Young-Sun; Sanjayan, Jay; Han, Cheong Goo; Han, Min Cheol

doi:10.1016/j.cemconres.2011.12.002

Cited by 46 publications

(21 citation statements)

References 19 publications

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“…Comparing the air content of FRCs and the control concrete versus HWR/C ratio illustrates that the air content of FRCs is slightly higher than that of control concrete, although the improvement is very small in magnitude, as shown in Figure 5. Heo et al (2012) also reported that adding fibres to a concrete mix and increasing the amount of HWR resulted in higher air content.…”

Section: Resultsmentioning

confidence: 94%

Static mechanical properties of polyvinyl alcohol fibre reinforced concrete (PVA-FRC)

Noushini

Vessalas

Samali

2014

Magazine of Concrete Research

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This investigation assessed the performance of polyvinyl alcohol (PVA) fibres of 6 mm and 12 mm length in concrete.Based on total concrete volume, four fibre fractions (0 . 125, 0 . 25, 0 . 375 and 0 . 5%) were evaluated for their effect on fresh and hardened properties of PVA fibre reinforced concretes (PVA-FRCs). Fly ash was also used as partial replacement of Portland cement in all the mixes. By carrying out a comprehensive set of experiments (compressive strength, splitting tensile strength, modulus of elasticity, modulus of rupture and residual flexural strength), it was observed that PVA fibre significantly enhances the static mechanical properties of concrete as well as improving its post-peak response and ductile behaviour.

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Section: Resultsmentioning

confidence: 94%

Static mechanical properties of polyvinyl alcohol fibre reinforced concrete (PVA-FRC)

Noushini

Vessalas

Samali

2014

Magazine of Concrete Research

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“…The use of fibres to form pathways to allow water escape is well documented (Papworth 2000;Heo et al 2012). This spalling is a result of pressure build up caused by trapped water/steam which exceeds the tensile strength of the OPC and pieces of material are explosively ejected from the main body.…”

Section: Geopolymer Applicationsmentioning

confidence: 99%

Fire-Resistant Geopolymers

Vickers

Riessen

Rickard

2015

SpringerBriefs in Materials

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“…From literature (Heo et al, 2012), it was expected that by adding fi bres to the mix and also increasing the HWR amount, a higher air content would result. It can be observed that the air content of FRCs are slightly higher than the control although the increase is very small in magnitude from 1.0% to 1.4%.…”

Section: Fresh Propertiesmentioning

confidence: 99%

Rheological properties and compressive strength behaviour of polyvinyl alcohol fibre-reinforced concrete

Noushini¹,

Vessalas²,

Samali³

2014

AJSE

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Comprehensive experiments were carried out to assess the effects of uncoated polyvinyl alcohol (PVA) fi bres of two geometric lengths (6 and 12 mm) on the fresh and hardened properties of concrete. Fly-ash was also used as partial replacement of Portland cement in all mixes. Based on total concrete volume, four fi bre fractions of 0.125%, 0.25%, 0.375% and 0.5% were evaluated for their effect on slump, compacting factor, air content, mass per unit volume, compressive strength, relative strength with age and mode of failure in PVA fi bre-reinforced concretes (FRCs). PVA fi bres were observed to decrease the slump and mass per unit volume of FRC, while increasing the compressive strength up to 56 days ageing. With regards to workability and compressive strength, optimum fi bre addition was established for 0.25% PVA-FRC incorporating 6 mm fi bres with a 12% increase noted in compressive strength compared to the control concrete at 28 days ageing.

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Relationship between inter-aggregate spacing and the optimum fiber length for spalling protection of concrete in fire

Cited by 46 publications

References 19 publications

Static mechanical properties of polyvinyl alcohol fibre reinforced concrete (PVA-FRC)

Static mechanical properties of polyvinyl alcohol fibre reinforced concrete (PVA-FRC)

Fire-Resistant Geopolymers

Rheological properties and compressive strength behaviour of polyvinyl alcohol fibre-reinforced concrete

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