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Statements

Subject Item
n2:RIV%2F61989100%3A27120%2F13%3A86083934%21RIV14-MSM-27120___
rdf:type
n10:Vysledek skos:Concept
rdfs:seeAlso
http://amonline.trb.org/
dcterms:description
This paper presents development of service life estimation of HPC bridge decks on I-99 in Center County Pennsylvania. The 10 best performing HPC mixtures were chosen for implementation on several bridge decks constructed as part of the Interstate 99 highway project in Centre County Pennsylvania in 2004. A finite element diffusion model is under development in order to estimate the corrosion initiation time for these bridge decks within their intended service life. This model is established in conjunction with a probabilistic method called Simulation Based Reliability Assessment (SBRA) to address the inherited randomness of input variables. The reliability model focused on uncertainties in the governing input parameters. Early age concrete diffusivity, concrete cover depth, crack spacing probabilistic distributions are based on the in-situ measurements. While other parameters such as holidays in reinforcements, coatings and critical chloride threshold level in epoxy coated reinforcement are based on the litreture review. Results from this probabilistic analysis depict these HPC bridge decks are capable of lasting 75 to 100 years in harsh north-eastern chloride laden bridge deck environments. There are also periodical in-situ durability investigation outcomes from summer 2010 which showed high electrical resistivity, low chloride concentrations and fewer cracks of these bridge decks after 5 years of service. This paper presents development of service life estimation of HPC bridge decks on I-99 in Center County Pennsylvania. The 10 best performing HPC mixtures were chosen for implementation on several bridge decks constructed as part of the Interstate 99 highway project in Centre County Pennsylvania in 2004. A finite element diffusion model is under development in order to estimate the corrosion initiation time for these bridge decks within their intended service life. This model is established in conjunction with a probabilistic method called Simulation Based Reliability Assessment (SBRA) to address the inherited randomness of input variables. The reliability model focused on uncertainties in the governing input parameters. Early age concrete diffusivity, concrete cover depth, crack spacing probabilistic distributions are based on the in-situ measurements. While other parameters such as holidays in reinforcements, coatings and critical chloride threshold level in epoxy coated reinforcement are based on the litreture review. Results from this probabilistic analysis depict these HPC bridge decks are capable of lasting 75 to 100 years in harsh north-eastern chloride laden bridge deck environments. There are also periodical in-situ durability investigation outcomes from summer 2010 which showed high electrical resistivity, low chloride concentrations and fewer cracks of these bridge decks after 5 years of service.
dcterms:title
Development of Service Life Model of I-99 HPC Bridge Decks in Pennsylvania Development of Service Life Model of I-99 HPC Bridge Decks in Pennsylvania
skos:prefLabel
Development of Service Life Model of I-99 HPC Bridge Decks in Pennsylvania Development of Service Life Model of I-99 HPC Bridge Decks in Pennsylvania
skos:notation
RIV/61989100:27120/13:86083934!RIV14-MSM-27120___
n10:predkladatel
n11:orjk%3A27120
n3:aktivita
n12:P
n3:aktivity
P(EE2.3.20.0013)
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n5:3411877
n3:druhVysledku
n13:O
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
69178
n3:idVysledku
RIV/61989100:27120/13:86083934
n3:jazykVysledku
n14:eng
n3:klicovaSlova
initiation.; chlorides; reinforcement; crack; corrosion; Reinforced concrete
n3:klicoveSlovo
n8:initiation. n8:corrosion n8:crack n8:reinforcement n8:Reinforced%20concrete n8:chlorides
n3:kontrolniKodProRIV
[5559C472C58C]
n3:obor
n9:JM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:projekt
n19:EE2.3.20.0013
n3:rokUplatneniVysledku
n4:2013
n3:tvurceVysledku
Konečný, Petr Tikalsky, Paul Ghosh, Pratanu
n18:organizacniJednotka
27120