Temperature variations have a significant impact on the performance and durability of rigid (concrete) pavement. As concrete is subjected to daily and seasonal temperature changes, it experiences thermal expansion and contraction. These movements, if not properly managed, can lead to cracking, joint deterioration, and loss of structural integrity. The pavement system is adversely affected by intense heat and significant flooding. This study aims to analyze the impact of several parameters on the performance of rigid pavement under typical, thermal, and flooding situations. This study investigates the properties of concrete and the dimensional design of rigid pavement with FEACONS IV software to assess their impact on the performance of concrete pavement during thermal and flooding conditions. The main conclusions of this study derived from the FEACONS IV analysis are as follows. Rigid pavement can enhance load-carrying capacity due to a lower elastic modulus, adequate flexural strength, and aggregates with a lower coefficient of thermal expansion. Increased thickness of concrete slabs and shorter slab lengths assist in minimizing load- and temperature-induced stresses. The increase in the subgrade modulus reaction value during flooding conditions improves pavement strength. However, in higher thermal conditions, a higher subgrade reaction modulus can increase the stress induced by temperature and load. Rigid pavement using porous limestone aggregate exhibits a reduced elastic modulus and coefficient of thermal expansion, suggesting higher resilience compared to rigid pavement composed of river gravel or granite. The findings suggest that higher thermal conditions will cause pavement damage. Agencies need to account for higher temperatures while designing and maintaining pavement. Flooding saturates the concrete pavement and subgrade layer, adversely affecting its performance over time.

UHPC has been found to have excellent freeze–thaw durability in cold regions. Previous UHPC testing performed has mostly focused on concrete with compressive strength above 21 ksi (145 MPa). In this study, testing was conducted to determine at what strength level concrete transitions to provide excellent freeze–thaw (F–T) performance. Non-proprietary concrete samples were made for freeze–thaw durability from four different concrete mixture designs: 12–15 ksi, 15–18 ksi, 18–21 ksi, and 21+ ksi (83–145+ MPa), and these were tested according to ASTM C666, using 1.5% steel fibers. The samples were made for three different curing regimens: limewater curing in a fog room, simulated precast curing, and steam curing. Low-temperature differential scanning calorimetry (DSC) and mercury intrusion porosimetry (MIP) tests were carried out to reveal the freeze–thaw mechanism of the concrete samples. All mixtures with compressive strength above 15 ksi (103 MPa) performed excellent in freeze–thaw testing with no damage seen. Steam curing was found to negatively affect the freeze–thaw performance at the lowest strength level tested.

Global warming is increasing worldwide, leading to recurring climatic hazards each year. These hazards have a negative influence on the performance of infrastructure, most of which are inadequately prepared to resist the effects of climate change. Roadway system is being negatively impacted by the severe Global Warming, which is characterized by extreme heat and severe flooding. The objective of this study is to examine the impact of various factors on the performance of concrete pavement under varying weather conditions, including extreme heat and flooding. The goal is to create designs and tactics that will make concrete pavements more robust in these challenging circumstances. This research examines the characteristics of concrete and the dimensional configuration of concrete pavement using FEACONS IV to evaluate their influence on the concrete pavement’s performance under severe heat and flooding events. This study's main findings from FEACONS IV analysis are as follows. With a lower elastic modulus, sufficient flexural strength, and aggregates with a lower coefficient of thermal expansion, concrete pavement may have an increased load-carrying capacity Increasing Concrete slab thickness can reduce stress caused by load and temperature. Increased subgrade modulus reaction value under flooding circumstances enhances pavement strength. Nevertheless, under conditions of severe temperatures, a substantial subgrade reaction modulus has the potential to increase the stress caused by temperature and load. Concrete pavement with porous limestone aggregate shows a low coefficient of thermal expansion and elastic modulus, indicating that it could outperform concrete pavement made with river gravel or granite. The implications of the findings lead to increased temperatures which will result in the degradation of pavement. It is necessary for agencies to consider a rise in temperature when designing, constructing, and maintaining pavement. Flooding causes the concrete slab and subgrade layer of a pavement to become saturated, which negatively impacts the pavement's performance over time.