About

Professor Christopher Ferraro is a faculty member at the Engineering School of Sustainable Infrastructure & Environment. The provided page text does not include specific details about his research focus, background, or key contributions. Therefore, there is no available biographical information to summarize.

Research topics

• Materials science
• Chemistry
• Computer Science
• Environmental science
• Composite material
• Metallurgy
• Engineering
• Waste management
• Geology
• Mineralogy
• Geotechnical engineering

Selected publications

• Optimization of pretreatments for municipal solid waste incineration ash reuse in cement manufacture: A critical review

  Resources Conservation and Recycling · 2026-04-08

  article
  PublisherDOI

• Characterization of per- and polyfluoroalkyl substances in crushed concrete from a source with known AFFF exposure: Outlooks for recycling

  Journal of Hazardous Materials Organics · 2026-03-29

  articleOpen access

  Portland Cement Concrete (PCC) pavement is a highly recycled material globally. Recently, it has been discovered that some PCC pavement at military installations, firefighting training sites, and aviation facilities was vulnerable to per- and polyfluoroalkyl substances (PFAS) exposure via use of aqueous film forming foams (AFFF). However, little is known about the distribution of PFAS within intact PCC pavements, nor the implications of recycling AFFF-impacted PCC pavements. In this study, approximately 4,500 kg of PFAS-impacted concrete slabs collected from a former defense installation (in the United States) were processed in a full-scale recycling operation. Surface powder samples (< 0.25 cm depth) and pavement cores were collected from select slabs to screen surficial PFAS concentrations and characterize PFAS as a function of pavement depth. Additional clean PCC was processed, after the impacted load, to monitor potential PFAS transfer to subsequent material prepared by the same recycling equipment. Samples were analyzed for 40 PFAS via ultra-high pressure liquid chromatography - tandem mass spectrometry (UHPLC-MS/MS). Weighted averages from PCC depth profile analysis were more effective in estimating the boundaries (1,300 – 4,300 µg/kg) of expected sum of PFAS concentrations (ΣPFAS) in the homogenized final product (HFP) of crushed concrete (average 2,320 µg/kg) than surface screening concentrations alone (504 – 60,400 µg/kg). PFAS transfer to clean concrete crushed immediately following the PFAS-laden load was minimal, where the ƩPFAS decreased from 27 µg/kg to 9 µg/kg within 4,500 kg of clean PCC processed, and to below limits of quantification within 5,400 kg of clean PCC processed. • AFFF-impacted portland cement concrete slabs collected from former US defense site • Maximum PFAS concentrations were observed 0.25 – 3 cm from concrete surface • 4,500 kg of slabs were processed in a full-scale concrete crushing/recycling plant • Depth profile averages effectively estimated PFAS concentrations in crushed product • Low PFAS transfer to subsequent concrete; cleared within 5,400 kg clean material

  PublisherDOI

• Evaluation of coal combustion residuals in cement systems

  Journal of Hazardous Materials · 2026-04-15

  articleSenior authorCorresponding
  PublisherDOI

• A review of the suitability and performance of phosphogypsum as a material for road base and subbase construction

  Resources Conservation and Recycling · 2025-01-06 · 13 citations

  review
  PublisherDOI

• Evaluation of alkali-silica reactivity behavior and mitigation in waste-to-energy bottom ash for sustainable aggregate use in concrete

  Waste Management · 2025-06-02 · 1 citations

  article
  PublisherDOI

• Reporting on Age-Based Building Inspections Programs in South Florida

  Journal of Performance of Constructed Facilities · 2025-02-28

  article

  Prior to 2023, building structural inspections were required for all nonexempt buildings when they reached 40 years of age in Miami-Dade and Broward Counties, Florida. In 2022, Florida introduced statewide requirements for structural milestone inspections of condominiums over three stories when the building reaches 30 years of age. The objectives of this study were to report on the implementation and outcomes of the original 40-year building inspection programs. Analysis of information contained in inspection reports showed that approximately one quarter of buildings assessed for their 40-year inspection required some type of repair, and 14% had indications of deterioration in structural elements. Further analysis indicated a higher rate of deterioration and required repairs for buildings closer to the coast, which likely is due to increased exposure to airborne chlorides. Analysis of subsequent 10-year anniversary inspection reports showed that subsequent inspections noted lower rates of required repairs than the initial 40-year inspections. These results indicate that the structures may benefit from the maintenance and repairs required as a result of defect identification during the 40-year inspections, highlighting the potential positive impact of age-based building inspection programs to promote building maintenance and safety. Deficiencies were noted in the required standard inspection forms and in the guidance provided to inspectors in completing them, leading to variability in how the inspection reports were completed by inspectors. As a result, the conclusions of this study are limited by the level of detail and variability of the information contained in the inspection reports. Recommendations for the standardization of existing building condition assessments are provided to improve the implementation of future inspection programs.

  PublisherDOI

• Celestial hazards: immunological and pulmonary effects of lunar and Martian regolith simulants

  Life Sciences in Space Research · 2025-07-08

  review1st author
  PublisherDOI

• Inspection of Railroad Crossties with Snow Cover by Backscatter Radiography

  SSRN Electronic Journal · 2025-01-01

  preprintOpen accessSenior author
  PublisherDOI

• Direct Tensile Performance of Fiber-Reinforced High-Strength and Ultrahigh-Performance Concrete with Varied Curing Conditions

  Journal of Materials in Civil Engineering · 2025-06-10

  article

  Direct tension tests were conducted on fiber-reinforced concretes with strengths ranging from high-strength to ultrahigh-performance concrete (UHPC) (83–165 MPa or 12–24 ksi) to determine how mixture design components, compressive strengths, and methods of curing affected the tensile test results such as effective cracking stress, peak stress, toughness, and postcracking stress measured at a strain of 0.005. Results showed that curing method affected compressive strength but was not found to consistently affect any of the tensile performance metrics in a statistically significant way. Tensile toughness, peak strength, and postcracking strength all consistently increased with an increase in the ratio of fines to sand in a mix, correlating with R2 values of at least 0.76. These correlations were stronger than any between a tensile property and either compressive strength or water-to-cementitious material ratio (w:cm), suggesting that the improved particle packing of the mixes with high fines content resulted in improved fiber bond to the surrounding matrix. Concrete with compressive strength below the minimum required for UHPC could still exhibit strain-hardening behavior, but tensile performance values were lower than those for mixtures designed to have higher strengths. Heat treatment of specimens did not have a significant impact on tensile strength properties in most cases.

  PublisherDOI

• Impact of Temperature and Supplementary Cementitious Content on the Potential for Delayed Ettringite Formation

  SSRN Electronic Journal · 2025-01-01

  preprintOpen accessSenior author
  PublisherDOI

Frequent coauthors

• Timothy G. Townsend

  24 shared

• Jerry M. Paris

  21 shared

• Kyle A. Riding

  21 shared

• Benjamin Watts

  Cold Regions Research and Engineering Laboratory

  16 shared

• Daniel Algernon

  15 shared

• Charles Ishee

  Florida Department of Transportation

  13 shared

• Dennis R. Hiltunen

  University of Florida

  13 shared

• Caitlin M. Tibbetts

  U.S. Army Engineer Research and Development Center

  11 shared

Education

• PhD, Civil Engineering

  University of Florida

  2009

• Master of Engineering, Civil Engineering

  University of Florida

  2003

• Bachelor of Science, Civil Engineering

  University of Florida

  1998

Awards & honors

• Fellow of the American Concrete Institute (FACI)
• Faculty Adviser / Mentor Award for the Herbert Wertheim Coll…
• Best Paper by a University Researcher for the Structural Fau…