Fly Ash Articles & Analysis

The runway is located at the Point Mugu Naval Air Station in Southern California. Economy, durability, low shrinkage and high strength were accomplished by reducing the amount of portland cement used in the concrete while utilizing large volumes of fly ash. In addition to field performance, this approach provided the added environmental goal of reducing the CO2 released into the air through ...

By Eco Material Technologies Inc.

The Olivenhain Dam will be the first roller compacted concrete (RCC) gravity dam in California and the tallest in North America. At 308 feet tall and 2,552 feet long, the dam used almost 1.5 million cubic yards of RCC and over 152,000 tons of fly ash. As the centerpiece of the San Diego County Water Authority (SDCWA) Emergency Storage Project, the dam is designed to survive a major earthquake and ...

By Eco Material Technologies Inc.

This innovative research study is based on utilisation of two solid waste materials, pulverised coal fly-ash and rice straw for manufacturing of laminate base paper. Fly-ash can prove to be a very good filler for laminate grade coloured base papers and other specialty papers where very high opacity is sought but whiteness is not important. The paper samples with 22% filler have opacity of 99.6% ...

By Inderscience Publishers

High Volume Fly Ash (HVFA) concrete was successfully used as the cornerstone of this project’s sustainability program. HVFA concrete was aggressively pursued because of its environmental benefits. When fly ash is used in place of cement, energy and landfill space is conserved and greenhouse gas emissions are reduced. During this HVFA project, roughly 2,800 tons of CO2 emissions were ...

By Eco Material Technologies Inc.

The construction defect trial went against developer Brighton Homes, concrete subcontractor James Mock Inc, and concrete supplier Owl Rock Products, based on negligence to abide by the provisions of the Uniform Building Code (UBC). The significance of this verdict is that while sulfate attack of concrete from the surrounding soils has been widely known and researched in the United States, ...

By Eco Material Technologies Inc.

From the visually breathtaking use of shotcrete to create the architectural features of rocks and trees in the Ocean Journey complex, to the 8,500 cubic yards of high performance concrete for the salt-water tanks and the structure in general – all benefited from the use of Headwaters Resources fly ash. S.A. Miro Engineering sought a high performance concrete with the following features: ...

By Eco Material Technologies Inc.

Catalytic pyrolysis of low-density polyethylene (LDPE) was investigated using various fly ash-derived silica–alumina catalysts (FSAs). FSAs were prepared by a simple activation method that basically includes NaOH treatment of fly ash by a fusion method, followed by an aging process. A series of LDPE pyrolysis experiments was conducted and the catalytic performance of FSAs was assessed in terms of ...

By Springer-Verlag GmbH

The study aims at investigating pozzolanic behaviour of MSWI fly ash in a saturated Ca(OH)2 solution at various times. The raw and water–washed fly ashes were selected for the pozzolanic solidification experiment to which mass ratios of the solution to ash (ml/g) were adjusted to be 3 and 10, whereas the solidification times were set from 7 to 28 days and from one to three months. From the XRD ...

By Inderscience Publishers

Making concrete construction bricks from incinerator fly ash has just become viable. The Environment Agency have announced that this new innovative end-use for incinerator fly ash meets the ‘end-of-waste criteria’. Castle Environmental and sister company Castle Construction Products are now investing in additional facilities to increase production and product range. Although there ...

By Inciner8 Limited

Although several information are available on various aspects of durability of high–performance concrete (HPC), no systematic information is available on durability of HPC used for bridge decks. In this study, 12 HPC mixtures were prepared with different combinations of fly ash, slag, and silica fume with three different w/cm ratios: 0.40, 0.35, 0.30 to study the durability primarily ...

By Inderscience Publishers

Using methods of the Mossbauer spectroscopy, scanning electron microscopy, and thermodynamic analysis of phase formation in silicate multi-component melts, the detailed study of composition, morphology, and properties of fly ash microspheres resulting from combustion of three coals (Irsha-Borodinskii, Kuznetskii and Ekibastuzskii) was carried out. About 60 microspherical products with an iron ...

By Inderscience Publishers

The total heavy metal concentrations in the fly ash were clearly lower than the Finnish limit values for forestry fertilisers, and for material used as an earth construction agent, which came into force in March 2007 and in June 2006, respectively. The relatively low heavy metal concentrations, the alkaline pH (12.5) and the elevated Ca concentration (139.5 g kg−1; d.w.) indicate that the fly ash ...

By Inderscience Publishers

Fly how much of a dryer? Price ash dryer is based on the user's needs may be, there is no uniform price, because each user needs equipment and supporting systems are not the same, different materials need to be addressed, for the dryer needs are different manufacturing the selection also different, especially for large particle abrasion equipment big points, strong all choose the best materials, ...

By IWA Publishing

In 2015, the global fly ash market was estimated to be valued at 40 billion USD. A recent industry analysis by Research Nester anticipates the market will reach an estimated 70 billion USD by the end of 2023 – a 7.1% CAGR owing to increasing urbanization and a boost in construction projects. Along with bottom ash (BA) and flue gas desulfurization gypsum (FGD gypsum, or synthetic gypsum), ...

By Feeco International, Inc.

Located on a fully wooded 44-acre site in Gainesville, Florida, directly adjacent to the University of Florida campus, Madera consists of 80 lots being developed by Green Trust, LLC, and built by three builders. In the spring of 2002, selected builders were invited to participate in a presentation and meeting with the Florida Energy Extension Service (FEES) which spearheaded the project for the ...

By Eco Material Technologies Inc.

The North Dakota Lewis & Clark Bicentennial Foundation has created a unique facility for one of the most vital sites on the Lewis & Clark Trail. The new visitor services center at Fort Mandan stands as a showcase for coal combustion products, while at the same time educating visitors about the journey of Lewis & Clark in North Dakota. Three major parts of the North Dakota: economy, ...

By Eco Material Technologies Inc.

EnBW is one of the biggest German energy suppliers. A major new build bituminous coal fired power plant construction project is the new boiler number 8 of the Rheinhafen Dampfkraftwerk (RDK) in Karlsruhe. The new boiler will have a capacity of 912 MWel with a heating capacity of 220 MWth. The unit will be erected beside the existing units RDK4s and RDK7 and have a net efficiency of > 46% ...

By Promecon Process Measurement Control GmbH

Stone Matrix Asphalt (SMA) is the latest low wear, long life asphalt pavement. It has a proven track record in Europe and is growing in popularity with State Department of Transportations across the country. Georgia alone placed over two million tons of SMA on its roads last year. The Oregon DOT is the latest to adopt SMA and is using it as a high durability asphalt wearing surface on 10 miles of ...

By Eco Material Technologies Inc.

The coal-fired electric utility generation industry has been identified as the largest anthropogenic source of mercury (Hg) emissions in the United States. One of the promising techniques for Hg removal from flue gas is activated carbon injection (ACI). The aim of this project was to liberate Hg bound to fly ash and activated carbon after ACI and provide high-quality coal combustion ...

By Air & Waste Management Association (A&WMA)

The aim of this study is to couple several analytical techniques in order to carefully undertake physical, chemical and mineralogical characterisations of LD steel slag to determine its feasible utilisation in commercial brick manufacturing. The characterisation results of LD slag showed that the pH and electrical conductivity of the samples were very high indicating high percentage of lime ...

By Inderscience Publishers