Assessment and mitigation of early-age cracking in concrete pavements due to restrained movement

Tyson, Samuel S; Yu, Haitao; Tayabji, S D

doi:10.1201/9780203882191.ch15

Cited by 1 publication

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“…Slab behaviour is a complex and multifactorial subject (Li et al 2021) as it is a function of five nonlinear components working together including temperature gradient, moisture gradient, builtin temperature gradient, differential drying shrinkage and slab creep (Rao and Roesler 2005). It is widely recognized that early-age cracking of JPCPs occurs when tensile forces exceed the tensile strength of the PCC (Tyson et al 2008). This early-age damage may not be fully D r a f t alleviated and may adversely influence the long-term performance (Delatte 2018).…”

Section: Early-age Cracking In Concretementioning

confidence: 99%

Investigation of climate change impacts on early-age cracking of jointed plain concrete pavements in Canada

Shafiee

Maadani

2022

Can. J. Civ. Eng.

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Canada’s climate is warming at a rate about double the global average, leading to potential negative impacts on public infrastructures such as Jointed Plain Concrete Pavement (JPCP). In light of this reality of changing climate, the work contained in this paper is aimed at evaluating JPCP’s early-age behavior in response to environmental conditions. HIPERPAV® software and the associated models developed by the U.S. Federal Highway Administration (FHWA) were used to identify cracking potential. A sensitivity analysis was performed to assess the effect of different levels of air temperature, mix temperature, base layer temperature, wind speed and relative humidity. Additionally, projected extreme temperatures predicted by Canadian Regional Climate Model (CanRCM) were used to determine the relative impact of climate change on cracking risk. The results demonstrated the increased cracking risk under changing climate in several Canadian cities by mid-century and highlighted the importance of developing a pathway forward for climate adaptation.

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