Recently added articles from Concrete International:
Concrete that Cleans Itself and the Air
Feb 01, 2009; ... Photocatalytic cement helps oxidize pollutants Can a construction material remove pollutants from the air as it keeps its surface clean? It sounds incredible, but after 10 years of development and testing in Italy and France, such a product is now available in North America. The ...
Sustainability Leads to Durability in the New I-35W Bridge
Feb 01, 2009; ... More than 3 months ahead of schedule, crews placed concrete to close the final gap on the new I-35W St. Anthony Falls Bridge crossing the Mississippi River in Minneapolis, MN. The bridge opened to traffic on September 18, 2008, less than 14 months after its predecessor collapsed August 1, 2007 ....
ICFA Honors Exceptional Projects with Excellence Awards
Feb 01, 2009; ... The Insulating Concrete Form Association (ICFA) has honored outstanding individual projects with the 2008 Excellence Awards. The guidelines for the 2008 awards were revised to include more insulating concrete form (ICF) industry-specific information and criteria. A team approach was the ...
International Partners
Feb 01, 2009; ... HONG KONG CONCRETE INSTITUTE The Hong Kong Concrete Institute (HKCI) was established in early 2008 to provide a platform in Hong Kong for the exchange of ideas, centralized discussions on local issues, standardization, accreditation, certification, and training in concrete technology ....
Workshop Focuses on Young Practitioners
Feb 01, 2009; ... Highlights from the Fifth International Workshop-Structural Concrete in the Americas For the recent Fifth International Workshop-Structural Concrete in the Americas, the organizing committee identified and invited young practicing engineers to participate. Among the concrete industry ...
Global Concrete Industry Sustainability
Feb 01, 2009; ... Tools for moving forward to cut carbon emissions Global warming from the greenhouse-gas effect is the most serious sustainability issue today. In a series of reports issued in 2007, the U.N. Intergovernmental Panel on Climate Change (IPCC) stated that global warming is already occurring ...
ACI St. Louis Workshop on Sustainability
Feb 01, 2009; ... Planning for the effects of green building and international standards Rapid industrialization and population growth since World War II have resulted in the consumption of enormous amounts of the earth's resources and energy, causing unprecedented environmental changes on a global scale ....
CO2 Curing of Concrete Blocks
Feb 01, 2009; ... Research toward greener production As a part of a future global atmospheric stabilization strategy, industrialized countries may need to sequester large amounts of carbon dioxide (CO2).1,2 One method could be to use CO2 to cure cement-based materials.3-5 Manufacturers of concrete masonry ...
VERDiCT: Viscosity Enhancers Reducing Diffusion in Concrete Technology
Jan 01, 2009; ... A new approach to decreasing transport (ProQuest: ... denotes formula omitted.) Reinforced concrete structures are susceptible to attack by elements of the environment including chloride and sulfate ions. Past attempts at increasing service life have generally focused on limiting ...
Reinforcing Bars Exceeding Stock Lengths
Jan 01, 2009; ... (ProQuest: ... denotes formulae omitted.) Steel mills supply reinforcing bars in standard stock lengths, commonly known as mill lengths. Fabricators supply reinforcing bars in cut or detailed lengths. Normally, No. 5 (No. 16) and larger bars are available in standard mill lengths of up ...
International Partners
Jan 01, 2009; ... KOREA CONCRETE INSTITUTE The Korea Concrete Institute (KCI) will celebrate its 20th anniversary in 2009, but its connections to ACI go back to 1982, when the ACI Korean Chapter was established in Seoul. KCI was formed in June of 1989 using the ACI Korean Chapter as a founding block. In ...
Historic Concrete Investigations at Pointe du Hoc, Normandy, France
Jan 01, 2009; ... Toward interpretation and preservation of an important site The Concrete Industry Management (CIM) Program at California State University (CSU), Chico, working on an existing Texas A&M University project, had the honor of participating in a unique research opportunity that was ...
ACI Delegation Visits Latin America
Jan 01, 2009; ... Seminars on ACI 318S-08 are presented During July 2008, ACI President Luis E. García and other ACI representatives traveled to several countries in Latin America for a series of seminars on ACI 318S-08. Accompanying García was James K. Wight of the University of Michigan and past Chair ...
Effect of Post-Tensioning on Tolerances
Jan 01, 2009; ... Who is responsible for slab movements that produce tolerance issues? Post-tensioned, cast-in-place concrete buildings are becoming a dominant building type due to the benefits of using prestressing to balance a portion of the slab dead and live loads. One consequence of posttensioning, ...
Tips for Communicating about Formwork
Jan 01, 2009; ... The discussion shouldn't stop when the bid is awarded A couple of years ago, I answered my phone and recognized the voice of one of my clients, a concrete formwork subcontractor. "Make it pretty-o!" I heard him exclaim to his crew as he discussed the formwork needed for an architectural ...
Complex Admixture Combinations
Jan 01, 2009; ... Chemical admixtures are crucial ingredients for producing concrete and are often the only feasible means to achieve specified concrete properties. Waterreducing and set-controlling admixtures modify the concrete primarily by interacting with cement to change the hydration process; however, the ...
Reinforcement Placing Drawings are not Shop Drawings
Dec 01, 2008; ... Requirements for early submittal can be detrimental "Contractor will be required to have engineering such as submittals, shop drawings, and samples submitted for approval within one hundred (100) calendar days from written engineering notice to proceed." Statements similar to ...
Increasing Anchor Capacity with Reinforcement
Dec 01, 2008; ... Q. Is there any way to use additional reinforcing bars to increase the capacity of anchors designed according to Appendix D of ACI 318-081? A. The answer to your question depends on the particular failure mode that is controlling the strength of the anchor group you are designing. When ...
CRSI Recognizes Outstanding Projects with Design Awards
Dec 01, 2008; ... The Concrete Reinforcing Steel Institute (CRSI) has honored 13 projects in its nineteenth biennial Design Awards competition. For more than 35 years, the CRSI Design Awards program has honored excellence in sitecast and conventionally reinforced concrete structures. The program is open to ...
COIN: Concrete Innovation Center
Dec 01, 2008; ... One of Norway's Centers for Research-Based Innovation focuses on the concrete industry The Concrete Innovation Center (COIN) is one of 14 Centers for Research-Based Innovation (CRI)-an initiative by the Research Council of Norway. The main objective of the CRIs is to enhance the ...