The Association of Collegiate Schools of Architecture (ACSA) is pleased to announce the winners of the fourth annual Concrete Thinking for a Sustainable World, International Student Design Competition, administered by ACSA and sponsored by the Portland Cement Association (PCA) and the National Ready Mixed Concrete Association (NRMCA).

The program challenged students to investigate an innovative application of portland cement-based materials to achieve sustainable design objectives. The competition offered two separate entry categories, each without site restrictions, for maximum flexibility.

This year more than 300 students from 55 architecture schools around the world participated. Students either designed an environmentally responsible public transportation center focusing on architectural innovations to preserve tomorrow's resources or created a single element of a building that provides a sustainable solution to real-world environmental challenges.

"We applaud these students for coming up with such innovative submissions and pushing the boundaries of concrete in green building," said David Shepherd, AIA, LEED AP, and PCA's director of sustainable development. "Concrete's durability and versatility make it an ideal building material for sustainable design. This competition clearly illustrates its many applications."

Winning students, their faculty sponsors and schools will receive cash prizes and software totaling nearly $50,000. Included in the prize package is StructurePoint©, concrete design software, a retail value of nearly $10,000.

Prize-winning projects will be displayed at the 2010 ACSA Annual Meeting in New Orleans and at the 2010 American Institute of Architects Convention in Miami. In addition, the projects will be published on an online competition summary Website this fall.

First Place Winner—Transit Hub "Full Cycle"

Students: Brodie Bricker, Akira Hirosawa, and Marc Rutzen Faculty Sponsors: Kevin N. Erickson University of Illinois, Urbana-Champaign

Juror comments: This project is flexible and forward thinking, incorporating auto and bike transit systems, such as the bicycle train-car within the metro. Carving into the existing urban fabric to integrate the new solution highlights the durability and adaptability that the concrete structures offer.

Additional Winners—Transit Hub

Second Place: "Transfer Hub Lomma"

Students: Haydar Alward and Mikael Pettersson Faculty Sponsor: John Stack Ross, Tina-Henriette Kristiansen and Abelardo Gonzalez Lund University, Sweden

Honorable Mention: "Mobility in Flux"

Students: Tim Keepers and Wes Bradley

Faculty Sponsor: Stanley R. Russell and Vikas Mehta University of South Florida, Tampa

Honorable Mention: "Media-Hub"

Students: Shujia Chen, Truls Hakansson and Sven Teder Faculty Sponsor: John Stack Ross, Tina-Henriette Kristiansen and Abelardo Gonzalez Lund University, Sweden

First Place Winner—Building Element, "Defying Gravity: Casting over tensile membranes"

Students: Rasha Alkhatib, Kristiina Mair and Christina Gaiger Faculty Sponsor: Remo Pedreschi University of Edinburgh, Scotland

Juror comments: This project recreates something existing in a new way. The design is mindful of construction material conservation and has a reusable form which could be pulled apart and put back together for future reuse.

Additional Winners—Building Element

Second Place: "Constructed Ecologies"

Student: Zhan Chen and Brantley Highfill Faculty Sponsor: Douglas E. Oliver Rice University, Houston, Texas

Honorable Mention: "Minimal Surface Building Unit"

Student: Gavet Douangvichit, John Puff and Kristopher John Walters Jr.

Faculty Sponsors: Glenn Wilcox

University of Michigan, Ann Arbor

Honorable Mention: "TesseTrek"

Students: Joshua R Kehl and Clay Montgomery Faculty Sponsor: Douglas Hecker Clemson University, Clemson, S.C.