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Articles 931 - 960 of 12092
Full-Text Articles in Entire DC Network
Ccr Closure- Best Practices In Project Management Through The Construction Life Cycle, Glen Toepfer
Ccr Closure- Best Practices In Project Management Through The Construction Life Cycle, Glen Toepfer
World of Coal Ash Proceedings
CCR Closure: Best Practices in Project Management that Provide Asset Protection Throughout Each Stage of the Construction Life Cycle by Reducing Liabilities, Ensuring Quality and Expediting Regulatory Acceptance. Authors Mr. Glen Toepfer - United States - CQA Solutions Abstract CCR closure can be performed by clean closure through CCR removal and disposal or by closure in place methods. Regardless of the closure method being used, the construction process will have defined stages. The construction cycle begins at conception and seemingly culminates in the completion of either the fieldwork or the operational stage. However, the owner’s liability remains for up to …
Evaluating Monitored Natural Attenuation Paired With Source Control, Kelly Ferri, Craig Eady, Kathy Webb
Evaluating Monitored Natural Attenuation Paired With Source Control, Kelly Ferri, Craig Eady, Kathy Webb
World of Coal Ash Proceedings
Effective Remedial Measure: Evaluating Monitored Natural Attenuation Paired with Source Control Authors Mrs. Kelly Ferri - United States - SynTerra Corporation Mr. Craig Eady - United States - SynTerra Corporation Mrs. Kathy Webb - United States - SynTerra Corporation Abstract Monitored natural attenuation (MNA) coupled with source control is a viable component of remedial technologies evaluated under an assessment of corrective measures for coal combustion product (CCP) units with Appendix IV constituent concentrations greater than groundwater protection standards (GWPSs) downgradient of the waste boundary. To demonstrate the effectiveness of source control and MNA, groundwater data and geochemical conditions from four …
Lessons Learned From Landfill Construction Inside Former Ash Basins, John Bove
Lessons Learned From Landfill Construction Inside Former Ash Basins, John Bove
World of Coal Ash Proceedings
Lessons Learned from Landfill Construction Inside Former Ash Ponds Authors Mr. John Bove - United States - AECOM Abstract Lessons Learned from Landfill Construction Inside Former Ash Ponds John Bove1 1AECOM, 6000 Fairview Road, Suite 200, Charlotte NC 28210 KEYWORDS: Landfill, Ash Pond ABSTRACT Former ash pond sites can be good candidates for siting engineered landfills to place excavated ash from closure by removal sites and future production ash from power plants. For closure in place ash will need to be excavated within an area before building a landfill. These sites offer cost advantages over greenfield landfills such as hauling …
Design And Modeling To Dewater A Partially Composite-Covered Ash Pond, Michael Thornbrue
Design And Modeling To Dewater A Partially Composite-Covered Ash Pond, Michael Thornbrue
World of Coal Ash Proceedings
DESIGN AND MODELING TO DEWATER A PARTIALLY CLOSED ASH POND Authors Mr. Michael Thornbrue - United States - Atlas Technical Consultants Abstract An Electrical Power Supplier in the Midwest retained Atlas Technical Consultants (Atlas) to design a system to dewater a partially closed ash pond and predict its performance over a period of five (5) years. Prior to January 2022, the client began closure of the ash pond and completed installation of a composite cover over about 40% of the pond’s area. Atlas investigated the pond’s geology and concluded that the bottom and perimeter embankments consist of lean clay (k≈5x10‑8 …
Epa’S Value Engineering Approach For Gypsum Stack Closure, Michael Ayers, Craig Zeller
Epa’S Value Engineering Approach For Gypsum Stack Closure, Michael Ayers, Craig Zeller
World of Coal Ash Proceedings
EPA’s Value Engineering Approach for Gypsum Stack Closure Authors Mr. Michael Ayers - United States - Watershed Geo Mr. Craig Zeller - United States - US EPA Abstract In February 2017, US EPA Region 4 assumed responsibility for water treatment and daily operations for an unlined and open 350-acre gypsum stack located in Pascagoula, Mississippi. The gypsum stack contains approximately 15M cubic yards of phosphogypsum with elevated levels of nutrients and acidic pH. To the immediate east of the facility is one of the most biologically productive estuarine ecosystems in the Gulf of Mexico region. An uncontrolled and untreated release …
Build To Last- Innovations For Water And Waste Water Conveyance Using Geosynthetic Cementitious Composite Mats (Gccms) Henry Miller Irrigation District - A Case History, Nathan Ivy
World of Coal Ash Proceedings
Emerging technologies for water conveyance and containment Authors Mr. Nathan Ivy - United States - Concrete Canvas Abstract GCCM’s represent the newest class of geosynthetics that can be used for water conveyance and containment applications. Since their initial introduction nearly 15 years ago, ASTM D8364-Standard Specification for Geosynthetic Cementitious Composite Mats (GCCM) Materials has been developed as the internationally recognized standard for testing and classifying GCCM as Type I, II or III. All products discussed herein meet or exceed all aspects of this standard – regardless of type. These products combine both a concrete – hard armor – top surface …
Reactive Transport Modeling Of Closure-In-Place With Intersecting Groundwater And Remedial Actions Part Ii, Bruce Hensel, Jason James, Olivia Paradis, Rachel Kelly
Reactive Transport Modeling Of Closure-In-Place With Intersecting Groundwater And Remedial Actions Part Ii, Bruce Hensel, Jason James, Olivia Paradis, Rachel Kelly
World of Coal Ash Proceedings
Reactive Transport Modeling of Closure-in-Place with Intersecting Groundwater and Remedial Actions: Part II, Results and Meaning Authors Mr. Bruce Hensel - United States - Electric Power Research Institute Dr. Jason James - United States - Exponent Dr. Olivia Paradis - United States - Exponent Dr. Rachel Kelly - United States - Exponent Dr. Walter McNab - United States - Exponent Abstract This EPRI research project was initiated to better understand two objectives: • How is mobility of inorganic constituents affected by the intersection of groundwater with coal combustion product ponds and landfills under varying geologic and redox conditions? • How …
From Stockpile To En450 Atritor And St Equipment & Technology Demonstrate Simultaneous Drying And Sizing Of Harvested Fly Ash With Carbon Reduction, Scott Coley, Doug Widener, Frank Hrach, Lewis Baker
From Stockpile To En450 Atritor And St Equipment & Technology Demonstrate Simultaneous Drying And Sizing Of Harvested Fly Ash With Carbon Reduction, Scott Coley, Doug Widener, Frank Hrach, Lewis Baker
World of Coal Ash Proceedings
Fly Ash Harvesting: Simultaneous Drying, Sizing, and Carbon Reduction Demonstration Authors Mr. Scott Coley - United Kingdom - Atritor Ltd. Mr. Doug Widener - United States - Titan America Mr. Frank Hrach - United States - ST Equipment & Technology LLC Mr. Lewis Baker - United States - ST Equipment & Technology LLC Mr. Andrew Rigg - United Kingdom - Atritor Ltd. Abstract With commercial interest in harvesting fly ash from legacy stockpiles growing rapidly in response to increased demand and lack of supply of freshly produced fly ash, two leading companies in the fields of drying/ sizing, and electrostatic …
A Decade Of Automated Instrumentation Data – A Tva Story, Nicholas Mcclung, Matt Bishop, Nicole Walker, Chris Jones
A Decade Of Automated Instrumentation Data – A Tva Story, Nicholas Mcclung, Matt Bishop, Nicole Walker, Chris Jones
World of Coal Ash Proceedings
A Decade of Automated Instrumentation Data – A TVA Story Authors Mr. Nicholas McClung - United States - Tennessee Valley Authority Mr. Matt Bishop - United States - Tennessee Valley Authority Mrs. Nicole Walker - United States - Tennessee Valley Authority Mr. Chris Jones - United States - Stantec Abstract Nicholas McClung PE1, Matthew Bishop PE2, Nicole Walker3, Christopher Jones PE4 1,2,3Tennessee Valley Authority, 1101 Market St Chattanooga TN 37402 4Stantec, 3052 Beaumont Circle, Lexington, KY 40513 Performance monitoring of Coal Combustion Residuals (CCR) facilities has been paramount to the success of Tennessee Valley Authority’s (TVA) structural stability governance and …
Advanced Synthetic And Concrete Revetment System For Ccr Closure Applications, Bradford Cooley, Randy Thompson
Advanced Synthetic And Concrete Revetment System For Ccr Closure Applications, Bradford Cooley, Randy Thompson
World of Coal Ash Proceedings
ADVANCED SYNTHETIC AND CONCRETE REVETMENT SYSTEM FOR CCR CLOSURE APPLICATIONS Authors Mr. Bradford Cooley - United States - WatershedGeo Mr. Randy Thompson - United States - Watershed Geo Abstract The Advanced Synthetic and Concrete Revetment System (ASCR) stands as a groundbreaking geosynthetic solution, designed to safeguard earthen structures from significant erosive hydraulic forces. It is a flexible, fiber-reinforced concrete revetment consisting of a high-friction geomembrane overlain by engineered synthetic turf which is infilled with a high strength concrete. Typical ASCR applications in Coal Combustion Residuals (CCR) Closure projects, are dam embankments, shorelines, spillways, steep downchutes, and stormwater perimeter channels. Evaluating …
High Resolution Site Characterization To Increase Corrective Action Efficiency, Kathryn Farris, Margaret Gentile, Geoff Gay
High Resolution Site Characterization To Increase Corrective Action Efficiency, Kathryn Farris, Margaret Gentile, Geoff Gay
World of Coal Ash Proceedings
High Resolution Site Characterization to Increase Corrective Action Efficiency Authors Ms. Kathryn Farris - United States - Arcadis US, Inc. Dr. Margaret Gentile - United States - Arcadis US, Inc. Mr. Geoff Gay - United States - Arcadis US, Inc. Abstract Many Coal Combustion Residuals (CCR) sites regulated under the 2015 CCR Rule are entering the stage of implementation of corrective actions for Appendix IV constituents. Often, the data describing Appendix IV impacts above Groundwater Protection Standards are limited to monitoring well data from the compliance monitoring well networks established for CCR rule assessment and detection monitoring. Traditional monitoring well …
Ucc’S Innovative Ccr Dewatering, Morgan French
Ucc’S Innovative Ccr Dewatering, Morgan French
World of Coal Ash Proceedings
An Innovative and Economical Approach To Ash Dewatering Authors Mr. Morgan French - United States - UCC Environmental Abstract This paper presents an innovative and cost-effective approach for fly ash dewatering that is specifically designed to address a major challenge in coal ash pond closure projects. Fly ash dewatering is particularly difficult because of its fine particle size, typically less than 40 microns, and its hydrophilic nature, which makes it difficult to separate from water. The new technique employs a combination of chemical treatment and mechanical dewatering to achieve a significant reduction of fly ash moisture content. The chemical treatment …
Paper_Successful Installation Of A Vertical Hydraulic Barrier At A Ccr Impoundment During In Place Closure, Jim Edwards, Sylvain Payne-Gagnon
Paper_Successful Installation Of A Vertical Hydraulic Barrier At A Ccr Impoundment During In Place Closure, Jim Edwards, Sylvain Payne-Gagnon
World of Coal Ash Proceedings
Successful Installation of a Vertical Hydraulic Barrier at a CCR Impoundment During In-Place Closure Authors Mr. Jim Edwards - United States - Forgen Mr. Sylvain Payne-Gagnon - United States - Forgen Abstract Forgen was contracted to install a cut-off wall as part of a Vertical Hydraulic Barrier System that will encircle the ash consolidation area for a CCR impoundment undergoing closure in-place. Forgen’s scope of work included mix design, installation of a test section, sampling of the hardened test section, and installation of the cutoff wall. The hardened backfill was required to achieves: • Hydraulic Conductivity ≤ 1 x 10-7 …
Reactive Transport Modeling Of Closure-In-Place With Intersecting Groundwater And Remedial Actions Part I, Jason James, Olivia Paradis, Rachel Kelly, Walter Mcnab
Reactive Transport Modeling Of Closure-In-Place With Intersecting Groundwater And Remedial Actions Part I, Jason James, Olivia Paradis, Rachel Kelly, Walter Mcnab
World of Coal Ash Proceedings
Reactive Transport Modeling of Closure-in-Place with Intersecting Groundwater and Remedial Actions: Part I, Model Creation and Execution Authors Dr. Jason James - United States - Exponent Dr. Olivia Paradis - United States - Exponent Dr. Rachel Kelly - United States - Exponent Dr. Walter McNab - United States - Exponent Mr. Bruce Hensel - United States - Electric Power Research Institute Abstract This EPRI research project was initiated to better understand two objectives: • How is mobility of inorganic constituents affected by the intersection of groundwater with coal combustion product ponds and landfills under varying geologic and redox conditions? • …
Life After Coal- Opportunities And Challenges At Decommissioned Coal-Fired Power Sites, Leslie Miller, Brian Owens, Stacey Vanbelleghem
Life After Coal- Opportunities And Challenges At Decommissioned Coal-Fired Power Sites, Leslie Miller, Brian Owens, Stacey Vanbelleghem
World of Coal Ash Proceedings
LIFE AFTER COAL? OPPORTUNITIES AND CHALLENGES AT DECOMMISSIONED COAL-FIRED POWER SITES Authors Ms. Leslie Miller - United States - WSP USA Mr. Brian Owens - United States - WSP USA Ms. Stacey VanBelleghem - United States - Latham & Watkins, LLP Abstract With substantial regulatory and public pressures, coal fired power plants are being retired and decommissioned at an accelerated rate. What does the future look like for these expansive sites? Many of these sites may be suited for conversion to natural gas or other renewable energy sources such as solar or battery storage by their current owners, but others …
Visualization Tools To Enhance Conceptual Site Models Throughout The Project Life Cycle, Darby Litz, Jason House
Visualization Tools To Enhance Conceptual Site Models Throughout The Project Life Cycle, Darby Litz, Jason House
World of Coal Ash Proceedings
Visualization Tools to Enhance Conceptual Site Models Throughout the Project Life Cycle Authors Mrs. Darby Litz - United States - TRC Mr. Jason House - United States - TRC Abstract The conceptual site model (CSM) provides value throughout the life cycle of CCR Rule compliance, from detection and assessment monitoring to corrective action and post-closure attainment of Groundwater Protection Standards (GWPS). Frequently revisiting the CSM is advantageous to facilitate an understanding of site conditions and address the unique needs of the current project stage for relevant stakeholders. At the onset of the CCR Rule, the initial CSM development was particularly …
Data Collection, Assimilation And Reporting Methods To Support Pond Closure – A Case Study, Katherine Warwick (Coco), Joseph Keller, Kirkland Broadwell
Data Collection, Assimilation And Reporting Methods To Support Pond Closure – A Case Study, Katherine Warwick (Coco), Joseph Keller, Kirkland Broadwell
World of Coal Ash Proceedings
Data Collection, Assimilation and Reporting Methods to Support Pond Closure – A Case Study Authors Ms. Katherine (Kat) Warwick (Coco) - United States - Haley & Aldrich, Inc. Mr. Joseph Keller - United States - Haley & Aldrich Inc. Dr. Kirkland Broadwell - United States - Haley & Aldrich Inc. Abstract An automated “go/no-go” reporting system was developed for use by project stakeholders (Owner, Owner’s Engineer, Contractor, and contractor’s engineer) in support of a large ash pond closure in the mid-Atlantic. This reporting system not only documents compliance with the Construction Contractor’s Monitoring Plan (CCMP) and project specifications, but also …
Paper_Performance Of Engineered Turf Cover System Under Extreme Weather Conditions, Thomas Orzech, Bradford Cooley, Ming Zhu, Bryan Scholl
Paper_Performance Of Engineered Turf Cover System Under Extreme Weather Conditions, Thomas Orzech, Bradford Cooley, Ming Zhu, Bryan Scholl
World of Coal Ash Proceedings
The engineered turf final closure system (ClosureTurf®) is installed or awaiting installation on over 4,000 acres (1,619 hectares) of waste containment facilities including coal combustion residual (CCR) units, industrial and municipal solid waste landfills. A significant benefit of the engineered turf cover system over traditional soil covers is performance and resiliency under extreme weather conditions. The engineered turf cover system performs well during high rainfall intensities and/or high winds by protecting the containment facility from erosion or damage to the closure system and underlying subgrade/waste. This leads to measurable improvement in stormwater runoff quality and reduction in post-closure maintenance costs. …
Performance Of Engineered Turf Cover System Under Extreme Weather Conditions, Thomas Orzech, Bryan Scholl, Bradford Cooley, Ming Zhu
Performance Of Engineered Turf Cover System Under Extreme Weather Conditions, Thomas Orzech, Bryan Scholl, Bradford Cooley, Ming Zhu
World of Coal Ash Proceedings
Performance of Engineered Turf Cover System Under Extreme Weather Conditions Authors Mr. Thomas Orzech - United States - Watershed Geo Dr. Bryan Scholl - United States - Watershed Geo Mr. Bradford Cooley - United States - Watershed Geo Dr. Ming Zhu - United States - Watershed Geo Abstract The engineered turf final closure system (ClosureTurf®) is installed or awaiting installation on over 4,000 acres of waste containment facilities including coal combustion residual (CCR) units and industrial and municipal solid waste landfills. A significant benefit of the engineered turf cover system over traditional soil covers is performance and resiliency under extreme …
Producing Lightweight Aggregate From Waste Coal Ash For The Construction Industry, Mo Balapour
Producing Lightweight Aggregate From Waste Coal Ash For The Construction Industry, Mo Balapour
World of Coal Ash Proceedings
A technology platform to recycle off-spec coal combustion products into construction lightweight aggregate Authors Dr. Mo Balapour - United States - SusMaX Inc. Abstract As the focus shifts towards legacy coal ash landfills for benefaction processes to supply fly ash to the concrete market, it’s important to note that not all landfills and ponds have the suitable material for such recycling. SusMaX offers a new technology platform that can recycle landfilled or ponded off-spec coal ash products such as fly ash, bottom ash, slag, or their mixture into safe-to-use “construction lightweight aggregate”. This engineered lightweight aggregate has superior engineering performance …
Perimeter Barrier Wall Installation To Facilitate Closure By Removal, Paul Schmall, Shawn Coughlin, Christopher Gee
Perimeter Barrier Wall Installation To Facilitate Closure By Removal, Paul Schmall, Shawn Coughlin, Christopher Gee
World of Coal Ash Proceedings
Case Study: Perimeter Barrier Wall Installation to Facilitate Closure by Removal Authors Dr. Paul Schmall - United States - Keller Mr. Shawn Coughlin - United States - Keller Mr. Christopher Gee - United States - Dominion Abstract Hydrogeologic conditions of this project require a multi-faceted approach to facilitate ash dewatering and deep depressurization of underlying highly permeable soils within a 5,700 ft long perimeter cutoff wall, as deep as 80 feet. A perimeter cutoff wall was required because significant and sustained groundwater inflows from beneath the ponded ash were experienced with previous construction at the pond because the pond was …
Tva Shawnee – Overcoming Engineering Challenges Associated With Closure In Place Of Mixed, Craig Lee, Michael Owens
Tva Shawnee – Overcoming Engineering Challenges Associated With Closure In Place Of Mixed, Craig Lee, Michael Owens
World of Coal Ash Proceedings
TVA Shawnee – Overcoming Engineering Challenges Associated with Closure In Place of Mixed Ash Authors Mr. Craig Lee - United States - Kiewit Engineering Group, Inc. Mr. Michael Owens - United States - Kiewit Engineering Group, Inc. Abstract ABSTRACT The Tennessee Valley Authority (TVA) is in the process of closing Ash Pond 2, the Stilling Pond and the Special Waste Landfill at the TVA Shawnee Fossil Plant using Closure In Place. The project includes four million cubic yards of mass grading that included embanking material over sluiced ash. Kiewit Engineering Group (KEG) designed a bridge lift that utilized existing ash …
Demonstrating Equivalency Of Closureturf, Tyler Schmidt
Demonstrating Equivalency Of Closureturf, Tyler Schmidt
World of Coal Ash Proceedings
DEMONSTRATING EQUIVALENCY OF CLOSURETURF AS A VIABLE ALTERNATIVE TO TRADITIONAL CCR FINAL COVER SYSTEMS Authors Mr. Tyler Schmidt - United States - Burns & McDonnell Abstract When designing final cover systems for the closure of CCR units, owners must select materials that meet regulatory criteria while weighing facility-specific needs and challenges. ClosureTurf, an artificial turf cover system component, is often a viable solution for managing a facility’s needs and challenges, from preconstruction (such as optimizing earthwork) to post-closure (such as managing a low-maintenance artificial erosion layer). However, obtaining approval from a state agency or to comply with the requirements in …
Dewatering Basics – Understanding The Challenges Of Dewatering, Christine Harris
Dewatering Basics – Understanding The Challenges Of Dewatering, Christine Harris
World of Coal Ash Proceedings
Dewatering Basics – Understanding the challenges of dewatering Authors Mrs. Christine Harris - United States - None Abstract The current EPA Coal Combustion Residuals Rule requires the removal of Free Liquids from coal ash. Free liquids are defined as all ‘‘liquids that readily separate from the solid portion of a waste under ambient temperature and pressure,’ regardless of whether the source of the liquids is from sluiced water or groundwater. 40 CFR 257.53. Consequently, the directive applies to both the freestanding liquid in the impoundment and to all separable porewater in the impoundment, whether the porewater was derived from sluiced …
Paper_Capping & Closure For Two Pennsylvania Landfills Subject To U.S. Epa’S Ccr Rule Promulgated Under 40 Cfr 257 Subpart D, Ron Harris, Cory White, John Klamut
Paper_Capping & Closure For Two Pennsylvania Landfills Subject To U.S. Epa’S Ccr Rule Promulgated Under 40 Cfr 257 Subpart D, Ron Harris, Cory White, John Klamut
World of Coal Ash Proceedings
This project consisted of capping two coal combustion residuals (CCR) landfills with geosynthetic capping systems consisting of 24-inches of final cover soil over eight ounce per square yard filter/separation geotextile over Super Gripnet geomembrane with drainage studs along top and friction spikes along the bottom over a prepared subgrade consisting of in-place cover soil. Approximately 20 acres were capped at each landfill in 2023. Closure plans addressing CCR Rule requirements were prepared and posted to the stations’ CCR Rule websites. Per those plans, the stations intend to cease coal combustion and residual waste disposal by year-end 2028. To comply with …
Paper_Lessons Learned Through The Implementation Of In-Situ Stabilization For The Closure Of A Coal Combustion Residue Site, Vincent Spillane, Michael Fisher, Darin Payne
Paper_Lessons Learned Through The Implementation Of In-Situ Stabilization For The Closure Of A Coal Combustion Residue Site, Vincent Spillane, Michael Fisher, Darin Payne
World of Coal Ash Proceedings
Traditional means of remediating coal combustion residual (CCR) materials include excavation and off-site disposal. Site-specific geotechnical and hydrological features can dramatically increase the cost and complexity of remediation efforts. As such, it is often advisable to explore ways to properly leave material on-site. One such way may be via in-situ stabilization/solidification (ISS). ISS is a technically sound and economical solution for remediating CCR and other wastes and was recently used as part of the in- place closure of a 2.25-acre ash pond. In the project scenario described herein, the Contractor evaluated multiple means of ash stabilization through the use of …
Paper_Uniaxial Compressive Behavior Of “Solidified” Synthetic Lightweight Aggregates, Annika Han, Christopher Swan
Paper_Uniaxial Compressive Behavior Of “Solidified” Synthetic Lightweight Aggregates, Annika Han, Christopher Swan
World of Coal Ash Proceedings
This paper presents results from uniaxial compression tests on a synthetic lightweight aggregate (SLA) created from high carbon fly ash and mixed waste plastics. Since their invention in the late 1990’s, SLA has represented an innovative and potentially novel construction material created solely from the co-extrusion of these two, high volume, waste streams. This current effort involved testing specimens created as “solidified” SLA cylinders. Three types of cylindrical specimen were created from ‘loose’ SLA that existed at the following grain-size ranges: Coarse (between U.S. sieve No. 4 and No. 8 or between 2.36 to 4.75mm), Medium (between No. 8 and …
Uniaxial Compressive Behavior Of “Solidified” Synthetic Lightweight Aggregates, Annika Han, Chris Swan
Uniaxial Compressive Behavior Of “Solidified” Synthetic Lightweight Aggregates, Annika Han, Chris Swan
World of Coal Ash Proceedings
Uniaxial Compressive Behavior of “Solidified” Synthetic Lightweight Aggregates Authors Ms. Annika Han - United States - GEI Consultants, Inc. Prof. Chris Swan - United States - Tufts University Abstract This paper presents results from uniaxial compression tests on a synthetic lightweight aggregate (SLA) created from high carbon fly ash and mixed waste plastics. Since their invention in the late 1990’s, SLA has represented an innovative and potentially novel construction material created solely from the co-extrusion of these two, high volume, waste streams. This current effort involved testing specimens created as “solidified” SLA cylinders. Three types of cylindrical specimen were created …
Application Of Carbon Nanotube Technology To Fly-Ash Based Geopolymer Concrete For Strength Development And Net-Zeros Aspect, Janell Prater, Young Hoon Kim
Application Of Carbon Nanotube Technology To Fly-Ash Based Geopolymer Concrete For Strength Development And Net-Zeros Aspect, Janell Prater, Young Hoon Kim
World of Coal Ash Proceedings
Application of carbon nanotube technology to fly-ash based geopolymer concrete for strength development and net-zeros aspect Authors Ms. Janell Prater - United States - University of Louisville Dr. Young Hoon Kim - United States - University of Louisville Abstract Fly ash is one of the viable options to reduce carbon emissions in the construction industry. As the construction industry is expected to consume 10% of the world's fresh water, water-conscious building materials is an essential technological development to lessen the impact of infrastructure on water security. Geopolymer concrete can be a solution to the construction industry in water-stressed regions. Geopolymerization …
Assessment Of Coal Fly Ash As A Thermal Energy Storage Material For Concentrating Solar Power, Megan Bellusci, Kiana Oos, Deborah Glosser, Drew Johnson
Assessment Of Coal Fly Ash As A Thermal Energy Storage Material For Concentrating Solar Power, Megan Bellusci, Kiana Oos, Deborah Glosser, Drew Johnson
World of Coal Ash Proceedings
Use of Unconventional Fly Ash as Sensible Particulate Thermal Energy Storage Materials for Concentrating Solar Power Authors Ms. Megan Bellusci - United States - Western Washington University Ms. Kiana Oos - United States - Western Washington University Dr. Deborah Glosser - United States - Western Washington University Mr. Drew Johnson - United States - Western Washington University Dr. Prannoy Suraneni - United States - University of Miami Abstract Coal fly ash is an attractive alternative to sintered bauxite proppants for sensible thermal energy storage (TES) in high-temperature (HT) direct absorbing receiver concentrating solar power (CSP) technology. These waste materials are …