News Article | May 9, 2017
Texas – GSG Distribution, a Texas-based concrete distribution company that serves the Southwest Region of the United States, including Texas, Oklahoma, Louisiana, Arkansas, Alabama, and Mississippi, this week had a case study for one of their distributed products, SCP 327, released regarding the Texas A&M University Center for Infrastructure Renewal. To be one of the nation’s highest ranked, state of the art facilities dedicated to the research of concrete, the Center of Infrastructure Renewal will use the Spray-Lock Concrete Protection 327 to drastically reduce surface cracking in exposed polished concrete areas. “SCP will permanently prevent moisture related issues in areas to receive flooring in the center, as well as prevent any cracking in exposed areas,” said Brandon Thomas, Director of Sales at GSG Distribution. “The SCP is also being utilized on the rooftop concrete to provide a rapid cure, saving time in the entire construction process.” It has been found that SCP 327 will provide a better alternative to a 28-day water ponding, while also offering same-day, within one hour, access to the slab. This internal cure will therefore reduce shrinkage of the slab, which in most cases contributes to the surface cracking. “With SCP 327, any flooring or coating can be placed in only 14-days from the time of pour,” said Mr. Thomas. “It’s a curing medium, hardener, densifier, and concrete waterproofing product all in one. Additionally, SCP 327 also eliminates slab curl, efflorescence, surface cracking, spalling and freeze-thaw damage. We are excited to see the finished result for this new innovative center.” The world-class Center for Infrastructure Renewal will feature laboratories and testing facilities equipped with the latest technology to study Pavement Materials, Corrosion, Materials Evaluation, Electric Power Grid, Pipeline System Integrity, and Infrastructure Systems. For more information, or to read more about GSG Distribution’s products, visit: http://gsgdistribution.com/. For more information, please visit http://gsgdistribution.com
News Article | May 7, 2017
The current way of assessing bridges in the US may underestimate their vulnerability, according to a new study. The findings reveal an obstacle to wisely spending the money in the $1 trillion budget proposal to update infrastructure, including crumbling bridges. Case in point is a bridge along California’s iconic Big Sur coast, which collapsed in March, isolating communities and costing local businesses millions of dollars. Although California’s recent unprecedented rains were likely to damage infrastructure, standard risk assessments made it hard to identify which bridges were most vulnerable. “This winter in California has highlighted the vulnerabilities of our nation’s infrastructure,” says Noah Diffenbaugh, a professor of earth system science at Stanford University and a senior fellow at the Stanford Woods Institute for the Environment. “Updating our infrastructure will require both making up for deferred maintenance, and preparing for the increasing risk of extreme events that comes along with global warming.” Big Sur’s damaged Pfeiffer Canyon Bridge—out until at least September—is a harbinger of things to come. As climate and land-use change drive more frequent and intense flooding, collapses among the nation’s more than 500,000 water-spanning bridges will likely increase, state the authors of the study in the Journal of Infrastructure Systems. Complicated natural factors make accurate damage estimates hard to come by, but regional and national bridge studies have predicted up to $250 billion in direct climate impacts costs—numbers that serve only as indicators of the true magnitude of costs related to climate change impacts on bridges, including lost business and ability to commute to work. US risk assessments generally assume that bridges may collapse when a 100-year flood—a streamflow with 1 percent probability of being exceeded in any given year, or 63 percent over the course of a century—occurs. This assumption underestimates risk, the paper’s authors find, because it fails to capture the full range of stream flow conditions that can cause bridge collapse. In their analysis, the researchers considered the full variability of floods that could cause collapse, as opposed to the 100-year approach taken previously. As a result, their findings identified a greater sensitivity to changes in the underlying frequency of flooding. This result appears to support the idea that analyses considering a range of flood scenarios, as opposed to a single 100-year threshold, could be more robust and accurate. Indeed, of the 35 bridges analyzed, 23 were estimated to have collapsed during a water flow of lesser intensity than a 100-year flood level. The authors note that a primary reason for these lower flow collapses is the fact that most of those collapsed bridges were built before modern design standards. Because most US bridges, along with most US infrastructure, pre-date the modern design standards, the results highlight a more general risk that extreme climate events pose to US infrastructure. The American Society for Civil Engineering gives US bridges a C+, estimating that $123 billion is needed to clear the maintenance backlog. An additional $140-$250 billion over the 21st century may be required to address the increasing risks posed by climate change, according to past research. “To balance funding between the backlog and climate adaptation, bridge managers will need robust data on collapse risk,” says lead author Madeleine M. Flint, an assistant professor of civil & environmental engineering at Virginia Polytechnic Institute and State University. “Our study is a step in that direction.” The Stanford Woods Institute for the Environment supported this research through the Environmental Venture Projects seed grant program.
Aoki K.,Infrastructure Systems Company |
Kim Y.I.,Hitachi Ltd.
Hitachi Review | Year: 2012
Railways are a key form of public transportation, yet the electric power shortages resulting from factors such as the impact of the Great East Japan Earthquake on nuclear power plants have made it more necessary than ever that they seek to save electricity. Another issue is the action being taken around the world to deal with the problem of global warming. Hitachi has developed a system for the storage of regenerative power that uses the same lithium-ion batteries as hybrid cars to store and reuse this energy in trains. The system was commercialized in 2007. In some cases, the installation of this system produced savings of more than 10% in power consumption. Hitachi intends to accelerate the deployment of this system to reduce railway power consumption in Japan and other markets.
Horii H.,Power Systems Company |
Yatsu M.,Infrastructure Systems Company |
Aihara T.,Power System Protection Automation and Solution Center
Hitachi Review | Year: 2013
OVERVIEW: A renewable energy feed-in tariff took effect in Japan in July 2012, and is expected to accelerate the adoption of photovoltaic power generation and other forms of renewable energy. Due to restrictions in the building of photovoltaic and wind power plants, there are expected to be increasing numbers of cases where such plants are built in remote locations far from the places where large amounts of energy are consumed, both in Japan and internationally. For this reason, problems related to the stabilization of power grids between energy production and consumption locations may grow serious. To deal with this situation, Hitachi is working towards the realization of power supply stabilization and wide-area interconnection by pursuing efforts in power system stabilizers, SVCs, energy storage systems, high voltage DC transmission systems, and other power grid technologies.
Toida S.,Infrastructure Systems Company |
Hatori F.,Infrastructure Systems Company |
Takemoto M.,Energy Research Company
Hitachi Review | Year: 2013
After aplant is constructed, the plant owners need to manage not only production, but also the maintenance of equipment that requires specialist knowledge and experience. The obstacles to achieving this include a shortage of maintenance technicians, rising maintenance costs due to the aging of industrial equipment, and the difficultly of training maintenance staff Hitachi is drawing on its plant construction activities to strengthen its plant maintenance management business and work together with its customers over all operations,from plant construction to after-sales service. Key factors in achieving this are the use of ICT and the service infrastructure that supports plant maintenance. © Hitachi, Ltd. 1994, 2013.
Kimoto Y.,Infrastructure Systems Company |
Chang J.Q.,Hitachi Ltd. |
Sugiura T.,Infrastructure Systems Company
Hitachi Review | Year: 2013
An increasing number of companies are seeking to operate multiple production sites, and many are choosing sites in the A SEA N and other nations of the Asian Belt Zone. However this poses numerous challenges, including the collection of local information and differences in culture, business practices, laws, and legal systems. In particular many companies considering the construction of new plants are looking to resolve problems in a variety offields, especially those that relate to know-how and conformance with local requirements. Based on its extensive past experience, Hitachi is able to supply integrated solutions for industiy that extend from plant construction through to things like air conditioning, utilities, and waste water treatment, and that take account of local customs and the relevant planning and legal systems. © Hitachi, Ltd. 1994, 2013.
Akamatsu T.,Infrastructure Systems Company |
Oda N.,Hitachi Ltd.
Hitachi Review | Year: 2013
Many countries and regions around the world are facing threats of severe water shortages or degradation of the water environment resulting from factors such as explosive population growth, rising living standards brought about by economic progress, and increasing use of industrial water Using the advanced technologies of water treatment systems, information and control systems, and energy saving systems, Hitachi has been helping protect and improve the world water environment for about a centuly. In the future, Hitachi intends to continue utilizing its high levels of both hardware and software technology built up in a variety of water-related fields to work with customers on building water distribution systems. © Hitachi, Ltd. 1994, 2013.
Hiraoka K.,Infrastructure Systems Company |
Masunaga S.,Infrastructure Systems Company |
Matsunobu Y.,Infrastructure Systems Company |
Wajima N.,Infrastructure Systems Company
Hitachi Review | Year: 2014
Having set a target of replacing 40% of its electric power generation capacity with renewable energy by 2030, the state of Hawaii in the USA is proceeding with the installation of wind and PV power generation. To aid this work, a smart grid demonstration project is being conducted on the Hawaiian island of Maui under the leadership of NEDO. The aim of the project is to solve the problem of how to use EVs to stabilize the supply of electric power despite the fluctuating output of renewable energy. Hitachi commenced operation of the EV Energy Control Center for controlling EV charging in December 2013. It is now working on the development of VPPs, with advanced technology for using EVs as a distributed generation system. © Hitachi, Ltd. 1994, 2014. All rights reserved.
Nishioka A.,Power Systems Company |
Horii H.,Infrastructure Systems Company |
Saito Y.,Infrastructure Systems Company |
Tamura Dr. S.,Infrastructure Systems Company
Hitachi Review | Year: 2012
Prompted by the problem of global warming together with factors such as the power outages resulting from the Great East Japan Earthquake, the growing momentum behind the worldwide adoption of renewable energy is intensifying the need for smart grids. Hitachi is involved in the development and supply of systems for smart grids, including solutions for improving electric power quality and reliability. Different economies and regions around the world have a variety of different needs, and Hitachi is contributing to the building of a greener, smarter, and more robust grid in order to realize a smart grid that can satisfy these needs by converging its extensive know-how in information, telecommunications, monitoring, and control technologies for electricity systems.
Mizukami K.,Infrastructure Systems Company |
Mishima H.,Infrastructure Systems Company
Hitachi Review | Year: 2013
OVERVIEW: The scope of application of international standards has been growing as people seek ways of resolving global issues. There has also been a trend in recent times toward the introduction of standards for services. These service standards are intended to apply not to individual technologies but to actual services in a particular field. There is also a strengthening move toward international standardization of social infrastructure systems, a field that in the past did not need to take account of international standards. Hitachi is actively involved in international standardization. In the field of smart cities, Japan proposed the establishment of an ISO committee for standardizing indicators used to evaluate the performance of community infrastructure, resulting in the creation of the new ISO/TC 268/SC1 subcommittee. As a member of the Japanese team, Hitachi assisted with the proposal to establish this committee and with the writing of standards.