• Skip to main content
  • Skip to primary navigation
  • Departments
    • Bioengineering
    • Civil and Environmental Engineering
    • Electrical Engineering and Computer Sciences
    • Industrial Engineering and Operations Research
    • Materials Science and Engineering
    • Mechanical Engineering
    • Nuclear Engineering
    • Aerospace program
    • Engineering Science program
  • News
    • Berkeley Engineer magazine
    • Social media
    • News videos
    • News digest (email)
    • Press kit
  • Events
    • Events calendar
    • Commencement
    • Homecoming
    • Cal Day
    • Space reservations
    • View from the Top
    • Kuh Lecture Series
    • Minner Lecture
  • College directory
  • For staff & faculty
Berkeley Engineering

Berkeley Engineering

Educating leaders. Creating knowledge. Serving society.

  • About
    • Facts & figures
    • Rankings
    • Mission & values
    • Equity & inclusion
    • Voices of Berkeley Engineering
    • Leadership team
    • Milestones
    • Buildings & facilities
    • Maps
  • Admissions
    • Undergraduate admissions
    • Graduate admissions
    • New students
    • Visit
    • Maps
    • Admissions events
    • K-12 outreach
  • Academics
    • Undergraduate programs
    • Majors & minors
    • Undergraduate Guide
    • Graduate programs
    • Graduate Guide
    • Innovation & entrepreneurship
    • Kresge Engineering Library
    • International programs
    • Executive education
  • Students
    • New students
    • Advising & counseling
    • ESS programs
    • CAEE academic support
    • Student life
    • Wellness & inclusion
    • Undergraduate Guide
    • > Degree requirements
    • > Policies & procedures
    • Forms & petitions
    • Resources
  • Research & faculty
    • Centers & institutes
    • Undergrad research
    • Faculty
    • Sustainability and resiliency
  • Connect
    • Alumni
    • Industry
    • Give
    • Stay in touch

Claudia Ostertag: The future of concrete

Claudia Ostertag

Claudia Ostertag testing a concrete sample. (Photo by Bart Nagel)

As the world’s most widely used construction material, concrete has a far-reaching environmental impact. It’s composed primarily of cement, whose manufacture accounts for nearly 7 percent of global greenhouse gas emissions.

But civil and environmental engineering professor Claudia Ostertag is researching ways to make concrete more sustainable, without compromising its durability or strength. The vice chair of the Department of Civil and Environmental Engineering, she has developed a new, holistic approach to creating concrete composites, using micro and macrofibers to control cracking and damage progression. Under testing, these composites have shown exceptional durability and resistance to cracking. Outperforming conventional concrete, these high-performance materials just might be key to improving the sustainability of our concrete infrastructure — and reducing the amount of CO2 emissions throughout the world.

< Back to previous page
  • Contact
  • Give
  • Privacy
  • UC Berkeley
  • Accessibility
  • Nondiscrimination
  • instagram
  • X logo
  • linkedin
  • facebook
  • youtube
© 2025 UC Regents