John Harvey
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View article: Engineering Interlayers for Rigid Bases under Jointed Plain Concrete Pavement Slabs
Engineering Interlayers for Rigid Bases under Jointed Plain Concrete Pavement Slabs Open
This research’s goal is to develop recommendations for improving the interlayer (“bond breaker”) used between jointed plain concrete pavement (JPCP) slabs and lean concrete base (LCB). A full-scale test track was built and monitored to stu…
View article: Year-Twenty Performance Review of the First 40 Year Design Life Jointed Plain Concrete Pavements in California
Year-Twenty Performance Review of the First 40 Year Design Life Jointed Plain Concrete Pavements in California Open
This paper evaluates the half-life performance of the first three 40 year design life jointed plain concrete pavements built in California, in the early 2000s. The projects, two on I-15 and one on I-40, have a combined total length of 420 …
View article: Opportunities for Supplementary Cementitious Materials from Natural Sources and Industrial Byproducts: Literature Insights and Supply Assessment
Opportunities for Supplementary Cementitious Materials from Natural Sources and Industrial Byproducts: Literature Insights and Supply Assessment Open
This paper reviews various emerging alternative SCMs derived from minerals and biomass sources, industrial byproducts, and underutilized waste streams. The paper compiles and evaluates physicochemical properties, reaction mechanisms in cem…
View article: Rice straw ash as supplementary cementitious materials for concrete: optimizing water soaking duration of rice straw to remove alkalis
Rice straw ash as supplementary cementitious materials for concrete: optimizing water soaking duration of rice straw to remove alkalis Open
In 2016, global cement consumption reached 4.65 billion tonnes, accounting for 8% of the world’s carbon dioxide emissions. Reducing the reliance on cement is an effective strategy for mitigating cement’s climate impacts. This study investi…
View article: Fatigue and age-related cracking performance of asphalt mixes containing RAP, RAS and recycling agents (RA)
Fatigue and age-related cracking performance of asphalt mixes containing RAP, RAS and recycling agents (RA) Open
The goal of this research is to evaluate the changes in fatigue and age-related cracking properties of asphalt mixes due to the addition of high contents (up to 50 % binder replacement) of reclaimed asphalt pavement (RAP) and recycled asph…
View article: Prediction of Longitudinal Fatigue Cracking in Rigid Pavements using RadiCAL
Prediction of Longitudinal Fatigue Cracking in Rigid Pavements using RadiCAL Open
The capability of the software program RadiCAL to predict longitudinal fatigue cracking in jointed plain concrete pavements (JPCP) was studied to assess several sections in multiple climatic regions in California. RadiCAL fatigue cracking …
View article: PCC Slab Temperature Gradients as a Function of Structure and Environment Experience from the SHRP II R21 Composite Pavement Test Track
PCC Slab Temperature Gradients as a Function of Structure and Environment Experience from the SHRP II R21 Composite Pavement Test Track Open
The Strategic Highway Research Program (SHRP) II R21 Composite Pavement Research Project test track constructed at University of California Pavement Research Center (UCPRC) ATIRC facility has yielded significant Portland cement concrete (P…
View article: Concrete Pavement in Desert Environments: An Investigation of Design and Construction Issues
Concrete Pavement in Desert Environments: An Investigation of Design and Construction Issues Open
The extreme conditions of desert environments present special challenges for the design and construction of concrete pavement. These conditions include very low humidity, high winds, high temperatures, and high diurnal temperature changes …
View article: Innovative Approach to Rapid Rehabilitation of Concrete Pavement on Urban Highway
Innovative Approach to Rapid Rehabilitation of Concrete Pavement on Urban Highway Open
This case study presents an innovative fast-track reconstruction approach applied to a heavily trafficked LLPRS project on Interstate-15 (I-15) in southern California. A 4.5-km stretch of badly damaged concrete truck lanes, two in each dir…
View article: Experiences with Dowel Bar Retrofit in California
Experiences with Dowel Bar Retrofit in California Open
The technique of Dowel Bar Retrofit (DBR) consists of the installation of dowel bars in concrete pavements originally built without them. This technique is relevant to California because the vast majority of jointed concrete pavements in t…
View article: Compressive strength and regional supply implications of rice straw and rice hull ashes used as supplementary cementitious materials
Compressive strength and regional supply implications of rice straw and rice hull ashes used as supplementary cementitious materials Open
Substituting Portland cement (PC) with supplementary cementitious materials (SCMs) is a key strategy for reducing greenhouse gas (GHG) emissions. Considering alternative SCMs requires a holistic understanding of changes to material perform…
View article: Technical, economic, and environmental feasibility of rice hull ash from electricity generation as a mineral additive to concrete
Technical, economic, and environmental feasibility of rice hull ash from electricity generation as a mineral additive to concrete Open
A circular economy based on symbiotic relationships among sectors, where the waste from one is resource to another, holds promise for cost-effective and sustainable production. This research explores such a model for the agriculture, energ…
View article: Field Aging and Binder Fatigue Performance of Intermediate Asphalt Concrete Layers Containing Reclaimed Asphalt Pavement
Field Aging and Binder Fatigue Performance of Intermediate Asphalt Concrete Layers Containing Reclaimed Asphalt Pavement Open
In this research, field slab samples were taken from an asphalt pavement in a hot climate with a design life of 40 years at 2, 4, and 7 years of pavement age to determine aging behavior with time at different depths. The asphalt binders we…
View article: Development of a laboratory medium-term oven aging (MTOA) protocol with field validation for asphalt mixes containing RAP
Development of a laboratory medium-term oven aging (MTOA) protocol with field validation for asphalt mixes containing RAP Open
In this study, laboratory loose mix oven aging was compared to field aging to begin calibration for a medium-term oven aging (MTOA) protocol. Five different oven aging temperatures were implemented at different durations to evaluate the ch…
View article: Keynote Presentation: Improving Pavement Sustainability through Integrated Design, Construction, Asset Management, LCA, LCCA, and S-LCA
Keynote Presentation: Improving Pavement Sustainability through Integrated Design, Construction, Asset Management, LCA, LCCA, and S-LCA Open
Engineers, planners, asset managers, materials suppliers, contractors, and policymakers are focused on improving pavement infrastructure sustainability, and increasingly considering climate change resilience. This focus is often on materia…
View article: Laboratory performance and construction challenges for plant produced asphalt mixes containing RAP and RAS
Laboratory performance and construction challenges for plant produced asphalt mixes containing RAP and RAS Open
In this study, four plant-produced asphalt mixes were considered to evaluate the performance and construction challenges of mixes containing RAP/RAS. Also, asphalt mixes were collected at two different plant-production times for each mix t…
View article: Recommendations for cradle-to-gate environmental product declarations (EPD) in ‘Buy Clean’ procurement based on CDOT’s experience
Recommendations for cradle-to-gate environmental product declarations (EPD) in ‘Buy Clean’ procurement based on CDOT’s experience Open
The use of environmental product declarations (EPDs) in procurement of construction materials has been of increasing interest to government agencies, and adoption in the United States has been driven in part by ‘Buy Clean’ legislation. Buy…
View article: Decision Tree Analysis for Developing Weigh-in-Motion Spectra in the Californian Pavement Management System (PaveM)
Decision Tree Analysis for Developing Weigh-in-Motion Spectra in the Californian Pavement Management System (PaveM) Open
Weigh-in-motion (WIM) devices record vehicle axle loads on highways. WIM data include axle loads, inter-axle spacings, vehicle classification, gross vehicle weights, vehicle length, and travel speed. Pavement design, management, and perfor…
View article: Study on Thermal Reflective Cracking of Asphalt Concrete Overlays on Concrete Pavements Under Moderate Temperature Variations Using Finite Element Model
Study on Thermal Reflective Cracking of Asphalt Concrete Overlays on Concrete Pavements Under Moderate Temperature Variations Using Finite Element Model Open
This study investigated the effects of moderate daily temperature variations on reflective cracking in asphalt concrete (AC) overlays on Portland cement concrete (PCC) pavements using three-dimensional (3D) finite element (FE) modeling. Th…
View article: Engineering the performance of post-consumer calcium carbonate from carpet in cement-based materials through pre-treatment methods
Engineering the performance of post-consumer calcium carbonate from carpet in cement-based materials through pre-treatment methods Open
Using post-consumer carpet calcium carbonate (PC4) in concrete can support a circular economy. Three treatments were evaluated to engineer PC4: furnacing at 600°C, furnacing at 900°C, and milling. Specimens were made with 5 and 15% PC4 rep…
View article: Meta-Analysis of Soil Property Relationships and Construction Platform Design
Meta-Analysis of Soil Property Relationships and Construction Platform Design Open
This paper introduces the concept of using an existing low-volume road design method to design the lower granular layers within a mechanistic-empirical design to ensure an adequate construction platform. The DCP-DN design method was chosen…
View article: Optimized environmental justice calculations for air pollution disparities in Southern California
Optimized environmental justice calculations for air pollution disparities in Southern California Open
An Environmental Justice (EJ) analysis was carried out using full Chemical Transport Models (CTMs) over Los Angeles, California, to determine how the combination of domain size and spatial resolution affects predicted air pollution dispari…
View article: Calibration of a Mechanistic-Empirical Cracking Model Using Network-Level Field Data
Calibration of a Mechanistic-Empirical Cracking Model Using Network-Level Field Data Open
At the core of a mechanistic-empirical (M-E) pavement design method is a collection of performance models that each predicts the development of a specific pavement distress, such as fatigue cracking and surface rutting. Each model has both…
View article: A review of converting woody biomass waste into useful and eco-friendly road materials
A review of converting woody biomass waste into useful and eco-friendly road materials Open
Because of abundant reserves and renewable and environmentally friendly properties, the utilization of woody biomass waste in road engineering can alleviate the shortage of fossil fuels and carbon emissions so as to mitigate global climate…