The National Building Museum
Washington, D.C.
In June, 2004, the National Building Museum in
Washington, D.C., began a major exhibition in concrete
architecture:  Liquid Stone:  Architecture in Concrete,
focusing on concrete's essential function in
architectural expression.  At the request of the NBM,
PhotoCrete USA and the NYC design firm PURE +
APPLIED prepared a special piece for inclusion,
"Bricklayer in Motion," by Edwaerd Muybridge.
Edwaerd Muybridge's is known for his
innovations in sequential photography
The National Building Museum
Washington, D.C.
Known for his innovations in
sequential photography,
Designer Paul Carlos chose
this specific print ,
"because he
is considered one of the
founders of scientific
photography and we wanted to
apply one of his works to the
relatively new technology of
photo-engraved concrete.  We
chose photography and
concrete because they brought
about the modern world that we
live in and hopefully the
audience will make these
Bricklayer in Motion, by Edwaerd Muybridge
Edwaerd Muybridge's photograph
w/signature overlay.
PhotoCrete USA's Photo-Engraved Concrete at the
National Building Museum in Washington D.C. Click
below to take a virtual tour.
Sculptural Form-First Section
Mouse Over Images to see PhotoCrete USA's
Concrete Reproduction of Original Photos
Lecture and Publication Mark Close of "Liquid Stone" Exhibition
January 11, 2006
A News Release from the National Building Museum
Media Contacts:
Julia Neubauer,, 202.272.2448, ext. 3109
Lauren Searl,, 202.272.2448, ext. 3201

LECTURE and publication MARK CLOSE OF
Inventor of LiTraCon© (Light-Transmitting Concrete) to Lecture on Jan. 24
Princeton Architectural Press Publishes Book Based on Exhibition

WASHINGTON, D.C. — Time to visit the National Building Museum’s popular exhibition,
Liquid Stone: New Architecture in Concrete, is running out. The exhibition will close on
January 29, 2006 after being on view for over a year and a half. A virtual version of the
exhibition will still be available on the Museum’s website, and a concluding program with
translucent concrete inventor Áron Losonczi on January 24, 2006 will help mark the exhibition
closing. In addition, a book titled Liquid Stone: New Architecture in Concrete, based on the
exhibition, will be released by Princeton Architectural Press in February.

During its run, Liquid Stone attracted more than 110,000 visitors, as well as substantial
attention in the popular and professional media. Featuring beautiful, innovative works of
architecture from around the world along with cutting-edge products such as translucent
concrete and Ductal©, an ultra-high-performance concrete with remarkable properties, the
exhibition sheds new light on a common building material that is all too easily taken for

Liquid Stone: New Architecture in Concrete is sponsored exclusively by Lafarge, the world
leader in building materials.

Áron Losonczi, Inventor of LiTraCon, to Lecture on January 24
As a final event before the closing of Liquid Stone: New Architecture in Concrete, Hungarian
architect and inventor of LiTraCon Áron Losonczi will speak on Tuesday, January 24, 2006,
from 7:00 to 8:30 pm. LiTraCon — hailed as one of “the most amazing inventions of 2004” by
Time Magazine — is a revolutionary product incorporating fiber-optics, allowing slivers of light
to pass through solid concrete. A wall of LiTraCon blocks is the last element in the exhibition
Liquid Stone. Losonczi will discuss the product’s genesis, development, and use in several
experimental architectural installations, including the Europe Gate, which celebrated Hungary’
s entry into the European Union. Losonczi’s lecture will be preceded by a reception, from 6:00
to 7:00 pm, hosted by the Hungarian Embassy.

Princeton Architectural Press Publishes Book Based on Exhibition
A book titled Liquid Stone: New Architecture in Concrete, based on the exhibition and a
related symposium held in October 2004 at Princeton University, will be released by Princeton
Architectural Press in February. The volume was co-edited by G. Martin Moeller, Jr., senior vice
president of the National Building Museum and curator of the exhibition Liquid Stone, and
Jean-Louis Cohen, the Sheldon H. Solow Professor in the History of Architecture at the Institute
of Fine Arts at New York University. Featuring more than 500 illustrations and entailing 248
pages, the book will be published in both English and French versions. All of the contemporary
projects and most of the innovative products presented in the exhibition are included in the
book, which takes stock of what seems to be a moment of unprecedented creativity in the use
of this ancient building material.

The book begins with a series of essays by prominent academics and practitioners exploring
the complex history of concrete. Antoine Picon, professor of the history of architecture and
technology at Harvard University, writes about the genealogy of concrete within the broader
context of technological history. Co-editor Jean-Louis Cohen explores how differences in French
and German national building cultures influenced European concrete design and construction.
Adrian Forty, professor of architectural history at the Bartlett School of Architecture in London,
makes the case that concrete should be considered a process rather than a specific material,
using examples from post-World War II Italy. Réjean Legault, architectural historian and
professor at the École de design at the Université du Québec, Montréal, traces contemporary
developments in North America, which reshaped the visible face of concrete.

A second set of essays expands upon the themes developed in the National Building Museum’s
exhibition Liquid Stone. Structural engineer and Princeton University professor Guy Nordenson
examines concrete construction as a kind of theatrical endeavor. New York architects Tod
Williams and Billie Tsien, who designed the Liquid Stone installation, reflect on the vast
spectrum of possible concrete surfaces and finishes. Exhibition curator Martin Moeller discusses
the surprisingly moralistic arguments that have been invoked in the debate about concrete’s
proper form. Finally, Franz-Josef Ulm, professor in the Department of Civil and Environmental
Engineering at the Massachusetts Institute of Technology, reveals amazing new directions in
scientific investigation that will undoubtedly shape future design and building in concrete.

The National Building Museum is America’s premier cultural institution dedicated to exploring
and celebrating architecture, design, engineering, construction, and urban planning. The
Museum has become a vital forum for exchanging ideas and information about such topical
issues as managing suburban growth, preserving landmarks, and revitalizing urban centers.
The Museum is located at 401 F Street NW, Washington, D.C. Museum hours are Monday
through Saturday from 10 am to 5 pm and Sunday from 11 am to 5 pm. Admission is free.
Museum Shop. Public inquiries: 202.272.2448 or visit

National Building Museum 401 F Street NW Washington, DC 20001 Tel. 202.272.2448 Fax