Matthew Keatts 1, John Daniels 2
|
|
- Michael Beasley
- 6 years ago
- Views:
Transcription
1 This study conducted by University of North Carolina, Charlotte, used WaterRepel 201 as the Organo-Silane product. WaterRepel 201 is a product of L&Q International Geotechnical Controls on Organo-Silane M Modification of Soils Matthew Keatts 1, John Daniels 2 1 Graduate Research Assistant, UNC Charlotte, Dept. of Civil and Environmental Engineering, 9201 University City Blvd, Charlotte, NC Associate Professor, UNC Charlotte, Dept. of Civil and Environmental Engineering, 9201 University City Blvd, Charlotte, NC Introduction Infiltration of water into soil, coal ash and solid waste landfills can be the root cause of many geotechnical and geoenvironmental engineering problems including loss of soil strength, leachate generation, groundwater contamination, and slope stability failure. By rendering a soil hydrophobic (or water-repellent ) through Organo-Silane (OS) surface modification these problems and others can be addressed. Hydrophobic soil could be used in a similar fashion to geosynthetic clay liners or geomembranes as an infiltration barrier, but data are needed to support geotechnical engineering design with this technology. Purpose The goal of this research is to develop the relationship between soil density (compaction), OS treated soil hydrophobicity (contact angle), and water infiltration pressure resistance (water entry pressure). Establishing this relationship will permit engineering design using the three parameters in question.
2 Materials Organfunctional Silanes (OS) Based on Potassium Methyl Siliconate Clear and initially water soluble Does not form film; permanently modifies surface (Daniels, 2009) Does not bind particles together Covalent bonding mechanism (grafting) Renders surface water repellent (hydrophobic) Unmodified Surface OS Modified Surface Hydrophobic Barrier Hydrophilic Surface OH- OH- OH- O Si O Si O Si O O Si O Si O Si O Silica Substrate Particle Surface Organo Silane Treatment C n H n+1 C n H n+1 C n H n+1 Si Si Si O Si O Si O Si O O Si O Si O Si O Silica Substrate Ottawa Sand Selected for consistent particle morphology Larger particle size (d 10 = 0.44mm) 100% silica composition Coal Fly Ash (CFA) Selected as a test material to address current beneficial reuse challenges Smaller particle size (d 10 = mm) Approximately 57% silica composition from x-ray fluorescence (XRF) analysis
3 Methods Sample Preparation Samples were prepared by mixing soil with OS solution Varying degrees of hydrophobicity (contact angles) were achieved by adjusting treatment levels Samples oven dried for 48 hours at 60 C (140 F) Samples were processed by passing through #20 sieve to remove aggregations Contact Angle (θ) Measurement Contact Angle measurements were performed using a goniometer and the sessile drop technique (Bachmann, 2000) Sample materials were applied to double sided tape affixed to glass slides to form a monolayer of treated soil particles Slide was placed on level goniometer stand Drop of water was carefully applied to monolayer soil surface Contact angle was measured where soil surface and drop surface meet using a digital microscope with 200x magnification and image analysis software A minimum of 10 contact angle measurements were performed per slide Water Entry Pressure (WEP) Procedure Soil samples were prepared for WEP testing by compacting to a target density within a custom infiltration cell Three different target densities were used for each material The water entry pressure of hydrophobic soils was measured using a standpipe capable of SOIL applying a positive infiltration pressure to the compacted samples Initiation of infiltration was determined by visual inspection of the sample, a decrease in pressure head, or both WATER h w (WEP)
4 Results Contact Angle (θ) Measurement The contact angle measures surface energies at interface of three phase system with solid, liquid and gas (vapor) Idealized Contact Angles Hydrophilic Hydrophobic θ < 90 θ > 90 Vapor Vapor Liquid θ Liquid θ Solid Solid Contact angles for Ottawa sand ranged from 90 to 125 Contact Angles for CFA ranged from 90 to 145
5 Results Contact Angle (θ) vs. Treatment Ratios 135 θ vs. Treatment Ratio (Sand) Contact Angle, θ (deg) Treatment Ratio (mg OS 2 /kg Sand) θ vs. Treatment Ratio (CFA) Contact Angle, θ (deg) Treatment Ratio (mg OS 1 /kg CFA)
6 Water Entry Pressure (WEP) vs. Contact Angle (θ) vs. Density (ρ) WEP (cm of H 2 0) WEP vs. θ vs. ρ (Sand) ρ = 1.76 g/cm 3 ρ = 1.66 g/cm 3 ρ = 1.61 g/cm Contact Angle, θ (deg.) 600 WEP vs. θ vs. ρ (CFA) ρ = 1.22 g/cm 3 WEP (cm of H 2 0) ρ = 1.12 g/cm 3 ρ = 1.02 g/cm Contact Angle, θ (deg.)
7 Results Predicted Water Entry Pressures Used a variety of estimated pore diameters to predict WEP A pore size distribution was developed from the Soil Water Characteristic Curve (SWCC) (Lu and Likos, 2004) D LRG Largest pore diameter from SWCC estimation Two estimated pore diameters were developed using simple cubic and tetrahedral packing of spheres D SC Loosest possible arrangement of spheres (simple cubic) D TH Tightest possible arrangement of spheres (tetrahedral) Washburn equation for capillary rise used to predict WEP 4 TTcos θθ WWWWWW = dd where, d = estimated pore diameter and T = surface tension of wetting liquid 800 Predicted WEP WEP (cm of H 2 0) Contact Angle, ϴ (deg.) DTH DLRG DSC WEP (Dense) WEP (Med) WEP (Loose)
8 Conclusions Treatment ratios can be optimized to achieve water repellency (θ) with the least amount of OS necessary to achieve maximum hydrophobicity Unsaturated hydraulic conductivity at infiltration pressures less than the WEP is equal to zero If the WEP is exceeded and the hydrophobic soil is saturated hydraulic conductivity of treated material is similar to that of untreated Hydrophobic sand can withstand greater than 12cm of water pressure before infiltration is initiated Hydrophobic CFA can withstand greater than 500cm of water pressure before infiltration is initiated Both the degree of hydrophobicity (contact angle) and the level of compaction (density) have a positive correlation with increasing WEP Washburn model accurately predicts WEP of hydrophobic soil for maximum treatment level using a pore diameter equal to 0.41*D 10 for simple cubic packing and 0.15*D 10 for tetrahedral packing References Bachmann et. al. (2000). Development and application of a new sessile drop contact angle method to assess soil water repellency. Journal of Hydrology, , Daniels et. al. (2009). Nano-scale organo-silane applications in geotechnical and geoenvironmental engineering. International Journal of Terraspace Science and Engineering 1, 1, Lu, N. and Likos, W.J. (2004). Unsaturated Soil Mechanics. John Wiley & Sons, Inc., New Jersey, 556p. Acknowledgements I would like to thank the Energy Production & Infrastructure Center (EPIC) at UNC Charlotte for funding this research. For more information on this project please contact: Dr. John Daniels jodaniel@uncc.edu
2009 US-China Workshop on Ground Improvement Technologies
Soil Improvement with Organo-silane John L. Daniels 1, M. ASCE, P.E. and Mimi S. Hourani 2 1 AAAS Fellow and Program Director, Directorate for Engineering, Division of Engineering Education and Centers,
More informationSK Geotechnical Company - Landfill Liner. Team Members: Ali Alrashed, Nayf Alotaibi, Joe Atkinson, Xiaoyi Tan Date: 9 December 2016
SK Geotechnical Company - Landfill Liner Team Members: Ali Alrashed, Nayf Alotaibi, Joe Atkinson, Xiaoyi Tan Date: 9 December 2016 Acknowledgments Dr. Wilbert Odem The grading instructor Mr. Matthew Morales
More informationSOIL WATER CHARACTERISTIC CURVES FOR SOLID WASTE
SOIL WATER CHARACTERISTIC CURVES FOR SOLID WASTE by Craig H. Benson and Xiaodong Wang Environmental Geotechnics Report 98-13 Environmental Geotechnics Program Dept. of Civil and Environmental Engineering
More informationLecture 5. Soil Water Characteristic Curves (SWCC)
Lecture 5 Soil Water Characteristic Curves (SWCC) Surface Tension, Review Physical Model for Capillary The capillary model provides a mathematical relationship between the radius of curvature of the air-water
More informationSealing Concrete Bridge Decks: Overview of Current Technologies. Lorella Angelini Angelini Consulting Services
Sealing Concrete Bridge Decks: Overview of Current Technologies Lorella Angelini Angelini Consulting Services Concrete Non-Film Forming Sealers Overview of most recent and commonly used non-film forming
More informationWater Budget IV: Soil Water Processes P = Q + ET + G + ΔS
Water Budget IV: Soil Water Processes P = Q + ET + G + ΔS Infiltration Infiltration capacity: The maximum rate at which water can enter soil. Infiltration capacity curve: A graph showing the time-variation
More informationLecture 20: Groundwater Introduction
Lecture 20: Groundwater Introduction Key Questions for Groundwater 1. What is an aquifer? 2. What is an unconfined aquifer? 3. What is groundwater recharge? 4. What is porosity? What determines the magnitude
More informationFLOW AND DISTRIBUTION OF WATER IN UNSATURATED, FRACTIONALLY-WET POROUS MEDIA SYSTEMS
Proceedings of the 14 th International Conference on Environmental Science and Technology Rhodes, Greece, 3-5 September 2015 FLOW AND DISTRIBUTION OF WATER IN UNSATURATED, FRACTIONALLY-WET POROUS MEDIA
More informationSimplified Procedure for Unsaturated Flow Parameters
American Journal of Applied Sciences 8 (6): 635-643, 2011 ISSN 1546-9239 2011 Science Publications Simplified Procedure for Unsaturated Flow Parameters 1 Natthawit Jitrapinate, 2,3 Vichai Sriboonlue, 3
More informationStudy of the behavior of materials with fines content in heap leaching processes
Proceedings of Heap Leach Mining Solutions, 2016 October 18-20, 2016, Lima, Peru Published by InfoMine, 2016 InfoMine, ISBN: 978-1-988185-03-3 Study of the behavior of materials with fines content in heap
More informationGCL Chemical Compatibility Testing with CCR Landfill Leachate
GCL Chemical Compatibility Testing with CCR Landfill Leachate Jason D. Ross 1 and Michael G. Rowland 1 1 S&ME, Inc., 6190 Enterprise Ct., Dublin, OH 43016 CONFERENCE: 2017 World of Coal Ash (www.worldofcoalash.org)
More informationUniversity of Maiduguri Faculty of Engineering Seminar Series Volume 7, July 2016
University of Maiduguri Faculty of Engineering Seminar Series Volume 7, July 2016 Desiccation Induced Shrinkage Strain of Compacted Granite Residual Soil A. S. Muhammed 1, N. N. Nik Daud 2 and A. M. Kundiri
More informationWhat is the Vadose Zone? Why Do We Care? Tiffany Messer Assistant Professor Biological Systems Engineering School of Natural Resources University of
What is the Vadose Zone? Why Do We Care? Tiffany Messer Assistant Professor Biological Systems Engineering School of Natural Resources University of Nebraska-Lincoln Learning Objectives History of Vadose
More informationDurability of Cement Based Building Materials
Page 1 of 6 Durability of Cement Based Building Materials Ajay Ranka and Prakash Mehta Zydex Industries ABSRACT Cement based building materials undergo destructive chemical reactions. Some of the reactions
More informationUnsaturated Seepage Modeling Made Easy
Seepage Modeling Made Easy Murray D. Fredlund Department of Civil Engineering University of Saskatchewan, Saskatoon, Sask., Canada Introduction Fresh out of university, one of the first challenges I was
More informationHOW WATER MOVES IN SOIL Beth Guertal Auburn University
HOW WATER MOVES IN SOIL Beth Guertal Auburn University guertea@auburn.edu What s Up for Today Terms associated with water movement in soil. How things in sports field construction/remediation can affect
More informationENR 5261 ENVIRONMENTAL SOIL PHYSICS. Spring 2014 Course Outline
ENR 5261 ENVIRONMENTAL SOIL PHYSICS Spring 2014 Course Outline 3 Credit Hours 370 Kottman Hall Instructor: Rattan Lal School of Environment and Natural Resources The Ohio State University 2021 Coffey Road
More informationNet Safe Bearing Capacity of Fly Ash - Bentonite in Layered System
International Journal of Civil Engineering Research. ISSN 2278-3652 Volume 5, Number 2 (2014), pp. 129-134 Research India Publications http://www.ripublication.com/ijcer.htm Net Safe Bearing Capacity of
More informationEFFECTIVENESS OF UNSATURATED DRAINAGE LAYER IN WATER DIVERSION UNDER DIFFERENT RAINFALL CONDITIONS
G2 EFFECTIVENESS OF UNSATURATED DRAINAGE LAYER IN WATER DIVERSION UNDER DIFFERENT RAINFALL CONDITIONS Gambo Haruna Yunusa 1, Azman Kassim 2* Nurly Gofar 3 1,2,3 Department of Geotechnics and Transportation,
More informationSoil Water Relationship. Dr. M. R. Kabir
CHAPTER 4 Soil Water Relationship Dr. M. R. Kabir Professor and Head, Department of Civil Engineering University of Asia Pacific (UAP), Dhaka LECTURE 10 Introduction Root zone (depth of soil penetrated
More informationTOOLS AND TIPS FOR MEASURING THE FULL SOIL MOISTURE RELEASE CURVE
18188-00 6.9.2017 TOOLS AND TIPS FOR MEASURING THE FULL SOIL MOISTURE RELEASE CURVE HOW TO CREATE A FULL MOISTURE RELEASE CURVE USING THE WP4C AND HYPROP Creating a full moisture release curve is challenging.
More informationWater Diversion Capacity of Shallow Land Waste Repository Covered by Capillary Barrier of Soil
Proceedings of the 2 nd World Congress on Civil, Structural, and Environmental Engineering (CSEE 17) Barcelona, Spain April 2 4, 217 Paper No. ICGRE 174 ISSN: 2371-5294 DOI: 1.11159/icgre17.174 Water Diversion
More informationProperties of Porous Blocks Using Different Sizes of Coarse Aggregate for Pavement
Properties of Porous Blocks Using Different Sizes of Coarse Aggregate for Pavement A. H. Nur Hidayah *,a, Md. Nor Hasanan b and P. J. Ramadhansyah c Faculty of Civil Engineering, Department of Geotechnical
More informationWhat is the difference between silanes, siloxanes and silicones?
WATERPROOFING with Protectosil BHN_- FREQUENTLY ASKED QUESTIONS Sabine Giessler January, 2006 What is the difference between silanes, siloxanes and silicones? Silanes are monomeric compounds. Typically
More informationThe Decline of Soil Infiltration Capacity Due To High Elevation Groundwater
Civil Engineering Dimension, Vol. 1, No. 1, March 28, 35-39 ISSN 141-953 The Decline of Soil Infiltration Capacity Due To High Elevation Groundwater Isri Ronald Mangangka 1 Abstract: Infiltration capacity
More informationPROBLEMS & CONSIDERATIONS IN DETERMINING PHYSICAL PROPERTIES OF HORTICULTURAL SUBSTRATES
PROBLEMS & CONSIDERATIONS IN DETERMINING PHYSICAL PROPERTIES OF HORTICULTURAL SUBSTRATES William C. Fonteno Horticultural Substrates Laboratory Department of Horticultural Science North Carolina State
More informationQUANTIFICATION OF CHANGE IN DRY UNIT WEIGHT OF MECHANICALLY STABILISED EXPANSIVE SOILS USING FLY ASH
IGC 009, Guntur, INDIA QUANTIFICATION OF CHANGE IN DRY UNIT WEIGHT OF MECHANICALLY STABILISED EXPANSIVE SOILS USING FLY ASH K. Mallikarjuna Rao Professor, Dept. of Civil Engineering, S.V. University, Tirupati
More informationConsulting Engineers and Scientists. Closure Plan. Submitted by: GEI Consultants, Inc Voyager Drive Green Bay, Wisconsin
Consulting Engineers and Scientists Regulation Compliance Report Submitted to: We Energies 333 West Everett Street, A231 Milwaukee, Wisconsin 53203 Submitted by: GEI Consultants, Inc. 3159 Voyager Drive
More informationPRACTICAL COURSE III CLASSIFICATION & COMPACTION. Res. Assist. İREM KALIPCILAR
PRACTICAL COURSE III CLASSIFICATION & COMPACTION Res. Assist. İREM KALIPCILAR Group index REMINDER GI = (F 200-35)[0.2 + 0.005 (LL-40)]+0.01(F 200-15)(PI-10) FOR GROUP A-2-6 and A-2-7 GI = 0.01(F 200-15)(PI-10)
More informationPLASMA SURFACE TREATMENT OF POLYPROPYLENE REINFORCING FIBRES BY DIELECTRIC BARRIER DISCHARGE
PLASMA SURFACE TREATMENT OF POLYPROPYLENE REINFORCING FIBRES BY DIELECTRIC BARRIER DISCHARGE T. Morávek, J. Ráhel Masaryk University, Faculty of Science, Brno, Czech Republic. Z. Szalay Comenius University,
More informationA Comparison of Actual vs. Predicted Leachate Generation
2017 World of Coal Ash (WOCA) Conference in Lexington, KY - May 9-11, 2017 http://www.flyash.info/ A Comparison of Actual vs. Predicted Leachate Generation Cedric H. Ruhl, PE 1 and Chris Jordan, EI 2 1
More informationRainwater harvesting and greywater recovery - Part 1 -
Rainwater harvesting and greywater recovery - Part 1 - Prof. Patrice CANNAVO AGROCAMPUS OUEST / Agreenium, France Department of Physical Environment, Landscape Architecture Environmental Physics and Horticulture
More informationDeforming water droplet with a superhydrophobic silica coating
Supplementary Information for Deforming water droplet with a superhydrophobic silica coating Xiaoguang Li*, Jun Shen Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,
More informationWHITE PAPER ON GEOENVRIONMENTAL ENGINEERING
WHITE PAPER ON GEOENVRIONMENTAL ENGINEERING Name: Affiliation: E-mail: Patrick J. Fox, Associate Professor Ohio State University fox.407@osu.edu Geoenvironmental Research Experience (past 5 years): 1.
More informationSTABILIZATION OF CLAYEY SAND USING FLY ASH MIXED WITH SMALL AMOUNT OF LIME
STABILIZATION OF CLAYEY SAND USING FLY ASH MIXED WITH SMALL AMOUNT OF LIME Thaweesak Jirathanathaworn Lecturer, Dept. of Civil Eng., Kasetsart University, E-mail address: fengtwj@ku.ac.th Supakij Nontananandh
More informationMAESTRÍA EN INGENIERÍA CIVIL Énfasis en Geotecnia. INTERACCIONES CON AGUA DE PRODUCTOS DE LA COMBUSTIÓN DEL CARBÓN (CCPs) CON HIDROFOBICIDAD INDUCIDA
MAESTRÍA EN INGENIERÍA CIVIL Énfasis en Geotecnia INTERACCIONES CON AGUA DE PRODUCTOS DE LA COMBUSTIÓN DEL CARBÓN (CCPs) CON HIDROFOBICIDAD INDUCIDA WATER-REPELLENT COAL COMBUSTION PRODUCTS (CCPs): INTERACTIONS
More informationMajor Parameters that Affect Outcome of Landfill Slope Stability Modeling
Major Parameters that Affect Outcome of Landfill Slope Stability Modeling H.JAMESLAW CONTACT Contact name: H. JAMES LAW Organisation: SCS ENGINEERS Postal address: 322 CHAP ANO KE ROAD SUITE 11 RALEIGH,
More informationSOIL ENGINEERING (EENV 4300)
SOIL ENGINEERING (EENV 4300) Chapter 6 Soil Compaction Introduction In the construction of highways, embankments, earth dams, and many other engineering structures, loose soils must be compacted to increase
More informationEngineering Properties of Red Soils In North Coastal Districts Of Andhra Pradesh Vishakhapatnam Regions
Engineering Properties of Red Soils In North Coastal Districts Of Andhra Pradesh Vishakhapatnam Regions K.Saroja Rani Ph.D Scholar, Department Of Civil Engineering P.V.V.Satyanarayana Professor,Department
More informationFabrication of sub-100nm thick Nanoporous silica thin films
Fabrication of sub-100nm thick Nanoporous silica thin films Abstract M. Ojha, W. Cho, J. L. Plawsky, W. N. Gill Department of chemical and biological engineering, Rensselaer Polytechnic Institute Low refractive
More informationUNIFIED FACILITIES GUIDE SPECIFICATIONS
USACE / NAVFAC / AFCEC / NASA UFGS-02 66 10 (February 2010) ----------------------------- Preparing Activity: USACE Superseding UGGS-02 66 10 (April 2006) UNIFIED FACILITIES GUIDE SPECIFICATIONS References
More informationEffect of Surface Treatment of Artificial Aggregates by an Alkali-Activator on Properties of Geopolymer/Aggregate Composites
, pp.59-63 http://dx.doi.org/10.14257/astl.2016.130.13 Effect of Surface Treatment of Artificial Aggregates by an Alkali-Activator on Properties of Geopolymer/Aggregate Composites Jihwan Won 1, Seunggu
More informationPaper Pulp Sludge Characteristics and Applications
Paper Pulp Sludge Characteristics and Applications Leachate Interaction A paper mill in the United States Southwest currently produces approximately 40,000 tons of Paper Pulp Sludge (PPS) on a yearly basis.
More informationDesign and construction of a reinforced soil embankment on soft soil
Design and construction of a reinforced soil embankment on soft soil Russell Jones, Golder Associates Gareth Swift, University of Salford Overview Background Site details Design philosophy Design issues
More informationA STUDY ON THE PERFORMANCE OF DEEP LAYER SUBGRADE STABILIZATION
Research Experience for Undergraduates at UNC Charlotte Sean Windt Civil and Environmental Engineering Department A STUDY ON THE PERFORMANCE OF DEEP LAYER SUBGRADE STABILIZATION CONTENTS INTRODUCTION LITERATURE
More informationImprovement of engineering properties of soils by biopolymer additives
3 r d International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, Improvement of engineering properties of soils by biopolymer additives Başar TAYTAK Graduate Student,
More informationPublished by: PIONEER RESEARCH & DEVELOPMENT GROUP ( 1
Constant Head Determination of the K-Value of Umudike Aquifer Medium Granular Soil Onyelowe, Kennedy Chibuzor Department of Civil Engineering, College of Engineering and Engineering Technology, Michael
More informationOverview. Learning Objectives: This module provides step-by-step instructions in how to do the Bulk Density Protocol.
Overview This module provides step-by-step instructions in how to do the Bulk Density Protocol. Learning Objectives: After completing this module, you will be able to: Explain why bulk density is worth
More informationImprovement Of Sandy Soil Properties By Using Bentonite
Improvement Of Sandy Soil Properties By Using Bentonite Assistant Lecturer. Tawfiq Aamir Jawad / Department of Structures and Water Resources/ E-mail. Tawfeeq76@yahoo.com Assistant Lecturer. Asaad Mohammed
More informationLANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT CLASS 3N CCR LANDFILL PERMIT NO S3N-R2 AFIN
LANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT CLASS 3N CCR LANDFILL PERMIT NO. 0200-S3N-R2 AFIN 32-00042 OCTOBER 12, 2016 LANDFILL CLOSURE PLAN ENTERGY ARKANSAS, INC. INDEPENDENCE PLANT
More informationHydraulic performance of permanent heap leach with intermediate drainage system
Proceedings of Heap Leach Solutions, 2015 September 14-16, 2015, Reno, USA Published by InfoMine, 2015 InfoMine, ISBN: 978-0-9917905-8-6 Hydraulic performance of permanent heap leach with intermediate
More informationPage 1. Name:
Name: 7574-1 - Page 1 1) The diagram below shows the result of leaving an empty, dry clay flowerpot in a full container of water for a period of time. The water level in the container dropped to level
More informationTex-113-E, Laboratory Compaction Characteristics and Moisture- Density Relationship of Base Materials
Characteristics and Moisture- Density Overview Effective Date: August 1999 October 2004. This method determines the relationship between water content and the dry unit mass (density) of base materials.
More informationEvaluation of Processed Bottom Ash for Use as Lightweight Aggregate in the Production of Concrete Masonry Units
Evaluation of Processed Bottom Ash for Use as Lightweight Aggregate in the Production of Concrete Masonry Units Benjamin L. Phillips 1, Jack Groppo 1, and Roger Peronne 1 1 University of Kentucky Center
More informationUpland Landfill Waste Discharge Application 7295 Gold River Highway Campbell River, British Columbia
Upland Landfill Waste Discharge Application 7295 Gold River Highway Campbell River, British Columbia Upland Excavating Ltd. Engineering Consultant: GHD Limited Presentation Agenda Project Background Site
More informationEvaluation of Processed Bottom Ash for Use as Lightweight Aggregate in the Production of Concrete Masonry Units
2005 World of Coal Ash (WOCA), April 11-15, 2005, Lexington, Kentucky, USA http://www.flyash.info Evaluation of Processed Bottom Ash for Use as Lightweight Aggregate in the Production of Concrete Masonry
More informationA Normalized Function for Predicting the Coefficient Permeability of Unsaturated Soils
A Normalized Function for Predicting the Coefficient Permeability of Unsaturated Soils S.K.Vanapalli Civil Engineering Department, Lakehead University, Ontario, Canada J.P.Lobbezoo Trow Consulting Engineers
More informationHydrophobic modification of PP membrane coated by Al(OH) 3 colloids Feng-Xiang GUO1, a*, Lei LI1,b, Zhong-Hai ZHOU1,c, Qi-Wei WANG1,d, Yi-Meng HU1,e
Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016) Hydrophobic modification of PP membrane coated by Al(OH) 3 colloids Feng-Xiang GUO1, a*, Lei LI1,b,
More informationINFLUENCE OF RAINFALL PATTERN ON THE INFILTRATION INTO LANDFILL EARTHEN FINAL COVER
Proc. of Int. Symp. on Geoenvironmental Eng., ISGE2009 September 8-10, 2009, Hangzhou, China INFLUENCE OF RAINFALL PATTERN ON THE INFILTRATION INTO LANDFILL EARTHEN FINAL COVER Guan-Wei JIA 1, Tony L.T.
More informationASSESSMENT OF PASTE ROCK AS A COVER MATERIAL IN MINE RECLAMATION AT THE CANADIAN MALARTIC MINE
A UNIQUE RESEARCH PROGRAM ASSESSMENT OF PASTE ROCK AS A COVER MATERIAL IN MINE RECLAMATION AT THE CANADIAN MALARTIC MINE Bruno Bussière 1, Sandra Pouliot 2, Emma Charbonneau 1 and Ward G. Wilson 3 1 Research
More informationChapter 7. Concrete Mix Design and Fresh Concrete Properties
Chapter 7 Concrete Mix Design and Fresh Concrete Properties 7.1 GENERAL This chapter describes the conceptual concrete mix design procedures adopted for different lightweight s produced in this study.
More informationCONSTRUCTION WATERPROOFING HANDBOOK QUESTIONS
CONSTRUCTION WATERPROOFING HANDBOOK QUESTIONS 1. Which of the following is an advantage to using clear sealers for waterproofing decks? A. It is completely waterproof B. It has crack-bridging capability
More informationUnsaturated Hydraulic Conductivity of Compacted Abandoned Dumpsite Soils
Annals of Science, Engineering and Technology 2012 Vol. 2, No 1. Pp.85-104 ISSN: 2315-5655 C ff(x,y)dxdy U N I O S UN College of Science, Engineering and Technology, Osun State University, Osogbo, Nigeria.
More informationModeling of Environmental Systems
Modeling of Environmental Systems The next portion of this course will examine the balance / flows / cycling of three quantities that are present in ecosystems: Energy Water Nutrients We will look at each
More informationThis lecture is part of the Basic XRD Course.
This lecture is part of the Basic XRD Course. Basic XRD Course 1 A perfect polycrystalline sample should contain a large number of crystallites. Ideally, we should always be able to find a set of crystallites
More informationTopic #4 Soil Compaction
Topic #4 Soil Compaction What is Compaction? A simple ground improvement technique, where the soil is densified through external compactive effort. Compactive Effort + Water = 2 Compaction and Phase Diagram
More informationCures, Sealers Densifiers & Crystal Technology Ultimate / Proven Concrete Protection
Cures, Sealers Densifiers & Crystal Technology Ultimate / Proven Concrete Protection IF USED CORRECTELY AND IN THE RIGHT PLACES What is a Curing Membrane? Aids in the development of the designed strength
More informationA H M 531 The Civil Engineering Center
Compaction test By: Ahmed Essam Mansour Objective: To measure the optimum water content at which maximum unit weight of a soil occurs at standard compaction energy. General discussion: General approach
More informationGCL ALTERNATIVE LINER AND CRITICAL SLOPE STABILITY UNIQUE CASE HISTORY INVOLVING ENCAPSULATED DESIGN APPROACH
GCL ALTERNATIVE LINER AND CRITICAL SLOPE STABILITY UNIQUE CASE HISTORY INVOLVING ENCAPSULATED DESIGN APPROACH R. THIEL* AND R. ERICKSON** * Thiel Engineering, P.O. Box 00, Oregon House, California, 9596,
More informationTRIAXIAL COMPRESSION BEHAVIOUR OF COHESIVE SOIL MIXED WITH FLY ASH AND WASTE TYRE FIBRES
TRIAXIAL COMPRESSION BEHAVIOUR OF COHESIVE SOIL MIXED WITH FLY ASH AND WASTE TYRE FIBRES Tapas Das, Former PG Student, Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati
More informationChloride Penetration into Integral Water Repellent Concrete Produced with Linseed Oil
Hydrophobe VII 7 th International Conference on Water Repellent Treatment and Protective Surface Technology for Building Materials A.Elena Charola and J. Delgado Rodrigues, Editors LNEC (Laboratório Nacional
More informationCollapsible Behavior of Pond ash Jyotirmayee Mallick 1, Deepika P. Palai 2
Collapsible Behavior of Pond ash Jyotirmayee Mallick 1, Deepika P. Palai 2 1Civil Engineering Dept., N.I.T. Rourkela, Odisha-769008 India. Email: jyotir105@gmail.com 2Civil Engineering Dept., CAPGS, BPUT,
More informationNanotechnology For Road bases
Nanotechnology For Road bases TYPICAL RAD BASE DESIGN Stone Base (WBM / WMM) Granular Subbase (GSB) Subgrade Critical Concerns / Issues WATER A LUBRICANT - PARADX Water acts as a lubricant to compact soil
More informationPerformance Evaluation of Permeable Pavement Systems
Performance Evaluation of Permeable Pavement Systems 1 Civil and Environmental Eng., Pusan National University 2 Seoyeong Engineering Co., Ltd. Performance Evaluation of Permeable Pavement Systems 1 Civil
More informationImpact of Compaction State and Initial Moisture on Infiltration Characteristic of Soil
American Journal of Water Science and Engineering 2015; 1(1): 1-6 Published online September 15, 2015 (http://www.sciencepublishinggroup.com/j/ajwse) doi: 10.11648/j.ajwse.20150101.11 Impact of Compaction
More informationSILOEN Silicones for Construction, Coatings & Inks
SILOEN Silicones for Construction, Coatings & Inks Silicones for Building Protection Why building materials are in need for a protective agent Typical damages carried in by the water and affecting the
More informationUniversity of Maiduguri Faculty of Engineering Seminar Series Volume 9, Number 2, November 2018 Determination of Infiltration Capacity of Rice Husk Ash (RHA) Treated Black A. N. Alkali 1 *, I.S. Muhammad
More informationALTERNATIVE LANDFILL LINER
ALTERNATIVE LANDFILL LINER FINAL REPORT Authors: Ali Alrashed, Joe Atkinson, Nayf Alotaibi, Xiaoyi Tan Contents List of Figures... 3 List of Tables... 3 Section 1: Acknowledgments... 4 Section 2: Project
More informationThe strange effect of increasing temperature in accelerated ageing of HDPE geomembranes immersed in liquids
9 th International Conference on Geosynthetics, Brazil, The strange effect of increasing temperature in accelerated ageing of HDPE geomembranes immersed in liquids R. Kerry Rowe Geoengineering Centre at
More informationEstimation of Hydraulic Properties of An Unsaturated Soil Using A Knowledge-Based System
Estimation of Hydraulic Properties of An Soil Using A Knowledge-Based System Murray D. Fredlund, G.Ward Wilson, and Delwyn G. Fredlund Department of Civil Engineering University of Saskatchewan, Saskatoon,
More informationAggregates. Introduction. Inert, granular, inorganic materials, which normally consist of stone or stone-like solids.
Introduction Inert, granular, inorganic materials, which normally consist of stone or stone-like solids. Usage: Alone road bases, fill, drainage layers Particulate Composites - Portland cement concrete
More informationBioreactor Landfills: Issues and Implementation
Bioreactor Landfills: Issues and Implementation Emerging Technologies in Solid Waste Management Conference 2005 March 31, 2005 Debra R. Reinhart, PhD, PE, DEE Civil and Environmental Engineering University
More informationEffects of Polypropylene Fibers on the Shear Strength of Sandy Soil
International Journal of Geosciences, 2010, 44-50 doi:10.4236/ijg.2010.11006 Published Online May 2010 (http://www.scirp.org/journal/ijg) Effects of Polypropylene Fibers on the Shear Strength of Sandy
More informationWhat s In Your Water? A Discussion of Threats To Virginia s Water Quality
What s In Your Water? A Discussion of Threats To Virginia s Water Quality March 27 28, 2015 William and Mary School of Law Dr. John L. Daniels, P.E. Professor and Chair Department of Civil and Environmental
More informationEffects of Curing Conditions on Strength of Lime Stabilized Flyash
RESEARCH ARTICLE OPEN ACCESS Effects of Curing Conditions on Strength of Lime Stabilized Flyash Aparupa Pani 1, S. P. Singh 2 1 (Department of Civil Engineering, Institute of Technology, Rourkela India)
More informationEffect of Hydrocarbon Solutions on Polymer Concrete
Dr. Sanaa Abdul Hadi Applied Sciences Department, University of Technology/Baghdad. Mustafa Hassan Omar Applied Sciences Department, University of Technology/Baghdad. Email:entaomritofi8@yahoo.com Received
More informationExtent of Capillary Rise in Sands and Silts
Western Michigan University ScholarWorks at WMU Master's Theses Graduate College 4-2016 Extent of Capillary Rise in Sands and Silts Rachel Lynn Salim Western Michigan University Follow this and additional
More informationA-2. Soils. Soil Media. Chapter Contents. Soil Media In-situ Soil Testing Separation from Seasonal High Water Table (SHWT)
A-2. Soils Chapter Contents Soil Media In-situ Soil Testing Separation from Seasonal High Water Table (SHWT) Importance of Soil Composition in SCMs The soil composition of many stormwater SCMs also is
More informationViability of Kauswagan Clay as Landfill Liner
Viability of Kauswagan Clay as Landfill Liner Jonathan M. Tiongson, MSCE 1* and Mary Ann Q. Adajar, PhD. 2 1 PhD Civil Engineering Student, DLSU 2 Associate Professor, Civil Engineering Department, DLSU
More informationAn XPS and Atomic Force Microscopy Study of the Micro-Wetting Behavior of Water on Pure Chromium* 1
Materials Transactions, Vol. 44, No. 3 (2003) pp. 389 to 395 #2003 The Japan Institute of Metals An XPS and Atomic Force Microscopy Study of the Micro-Wetting Behavior of Water on Pure Chromium* 1 Rongguang
More informationChemical Compatibility of Geosynthetic Clay Liners to Aggressive Bauxite Liquor
Abstract Chemical Compatibility of Geosynthetic Clay Liners to Aggressive Bauxite Liquor Kuo Tian 1 and Craig H. Benson 2 1. Research Scientist, Department of Civil and Environmental Engineering George
More informationUtilization of Copper Slag as A Reinforcing Material
IJSTE - International Journal of Science Technology & Engineering Volume 2 Issue 12 June 2016 ISSN (online): 2349-784X Utilization of Copper Slag as A Reinforcing Material Sivapriya S.V Associate Professor
More informationLime Use For Soil & Base Improvement
Lime Use For Soil & Base Improvement Application Design Testing P3 Symposium July 19, 2007 Appian Way Eric Berger Common Additives for Soil Treatment Clay Silt/ Sand Gravel Lime Lime Portland Cement Lime/
More informationCharacterization of compacted sand-bentonite mixtures as landfill barriers in North Cyprus
Characterization of compacted sand-bentonite mixtures as landfill barriers in North Cyprus A. Iravanian & H. Bilsel Eastern Mediterranean University, North Cyprus KEYWORDS: Compacted sand-bentonite, hydro-mechanical
More informationPermanent Link:
Citation: Amiralian, S and Chegenizadeh, A and Nikraz, Hamid. 2012. Laboratory Investigation on the Effect of Lime on Compressibility of Soil, in A. Chang and T. Yingthawornsuk (ed), International Conference
More informationA Study on Seepage Through Earthen Dams By Using Analytical Methods 1 D.Ashok Kumar, 2 A. Mohan
A Study on Seepage Through Earthen Dams By Using Analytical Methods 1 D.Ashok Kumar, 2 A. Mohan 1 Assistant Professor, Department of Civil Engineering, Vignan s,institute of Technology & Aeronautical Engineering,
More informationExperimental Study on Triaxial Geogrid-Reinforced Bases over Weak Subgrade under Cyclic Loading
: Advances in Analysis, Modeling & Design 128 Experimental Study on Triaxial Geogrid-Reinforced Bases over Weak Subgrade under Cyclic Loading Yu Qian 1, Jie Han 2, Sanat K. Pokharel 3, and Robert L. Parsons
More informationPermeability of Natural Clay Liners: Effect of Accelerated Permeability Testing on Soil Structure
The 12 th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG) 1-6 October, 2008 Goa, India Permeability of Natural Clay Liners: Effect of Accelerated
More information1.6.1 Effective Stress Concept in Saturated Soils
Module 1 Lecture 4 Soil Aggregate -4 Topics 1.6 EFFECTIVE STRESS 1.6.1 Effective Stress Concept in Saturated Soils 1.6.2 Critical Hydraulic Gradient and Boiling 1.6 EFFECTIVE STRESS 1.6.1 Effective Stress
More informationWorld of Coal Ash Lexington April 2013
World of Coal Ash Lexington April 2013 An Innovative Design for Coal Ash Impoundment Capping and Closures with Significant Cost, Performance, and Environmental Co-Benefits Soilless Solar Caps Subtitle
More information