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Flow with Show: SCC Offers New Opportunities for
Architectural Concrete
Concrete is well known for its many benefits like availability, placeability, and durability. Appreciation for its aesthetic qualities continues to grow. Whether smooth or textured, gray, white, or colored, concrete surfaces have unlimited aesthetic potential. Self-consolidating concrete (SCC) is not only compatible with the wide variety of forming techniques and finishes, it’s often an easier way to achieve the desired surface. This article describes the basics of SCC and examines some of the technology behind the material, from the effect gray and white cement chemistry has on mix design to the new ASTM test methods used to assess the fresh properties. More.
Virtual Cement and Concrete Testing Laboratory Wins
Supercomputer Time
Researchers at the National Institute of Standards
and Technology (NIST) in Gaithersburg, Md. have been awarded more than
1,000,000 hours of NASA supercomputer time to study concrete mixing. The
VCCTL (Virtual Cement and Concrete Testing Laboratory)
team will use the time to study the complex
interactions of cement and aggregate particles of fresh concrete in order
to better understand concrete rheology. More.
For more information on the VCCTL Program and the 17th ACBM/NIST Computer Modeling Workshop, June 26-29, 2006, click here
Regional Programs Coming to Canada
CAC and PCA are pleased to announce that Troubleshooting Concrete: Solutions to Field Problems and Concrete Floors on Ground, our two newest one-day regional concrete programs, will be held May 4 and 5, 2006, in Toronto, On.
SCM Program Scheduled in Atlanta
Our popular one-day regional concrete program on
Supplementary
Cementing Materials, will be held May 9, 2006 in Atlanta, Ga.
Q: What are Type I/II or Type II/V cements?
A: A Type II/V cement designation simply means that the cement complies with the requirements of ASTM C 150, Standard Specification for Portland Cement, for both Type II and Type V cements. It is quite common to find cements that comply with multiple cement designations such as Type I/II and Type II/V.
Click here for more Concrete FAQs.
Acid Resistance
In general, portland cement concrete does not have
good resistance to acids. Some weak acids however can be tolerated, particularly
if the exposure is occasional. There are essentially three ways to improve
concrete resistance to acids, (1) choosing the right concrete composition
to make it as impermeable as possible, (2) isolating it from the environment
by using a suitable coating or (3) modifying the environment to make it
less aggressive to the concrete. More.
Special offer:
Effects
of Substances on Concrete and Guide to Protective Treaments (IS001)
$3.00 each (40% off). Offer good until end of June 2006.
Cement: Principles of Production and Use
(LT159)
The eagerly-awaited English translation (and updating) of the original German 2nd edition issued in 2000 is now available. This is an essential reference for all cement industry professionals, students, and researchers. The guide is an encyclopedic and readable text on the processing, performance, and application of cement today, incorporating the changes in standards and environmental regulations introduced since the original 2000 edition. Published by Verlag Bau + Technik GmbH, Germany. More.
Get Free Publications for a Limited Time
Reap the benefits of our house cleaning and get free copies of selected PCA R&D reports. Shipping charges may apply. Click here for the list of reports and order form.
Concrete’s Role in Building America Profiled in Pictures
As American industry boomed throughout the 1900s, so did the use of concrete. Portland Cement Association’s CD, Shades of Gray, Sands of Time illustrates with more than 900 black and white photographs how the equipment used in concrete construction and the related processes evolved during the past century.
The CD is a valuable resource of anyone preparing papers or PowerPoint presentations on the industry. All images are presented in high-resolution quality. More.
University of Toronto Cement Chemistry Workshop
May 1-5, 2006, Toronto, On.
2006
Concrete Bridge Conference
May 7-10, 2006, Reno, Nev.
2006
Concrete Technology Forum: Focus on Pervious Concrete
May 24-25, 2006, Nashville, Tenn.
ACBM/PCA
Undergraduate Faculty Enhancement Workshop
June 26-28, 2006, Skokie, Ill.
For a complete listing of conferences, click here.
Portland
Cement Association
5420 Old Orchard Road
Skokie, IL 60077
847.966.6200 • Fax: 847.966.9666
email: info@cement.org