Geofoam Applications in the Design and Construction of Highway Embankments (2004) / Chapter Skim
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Pages 701-731
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A-2 APPENDIX A GEOFOAM USAGE SURVEY: QUESTIONNAIRE Contents A.1. Introduction ........................................................................................................................................
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A-3 the questionnaire that was distributed. As a result, it is not possible to state exactly how many copies were actually distributed.
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A-4 Council through its Transportation Research Board has recently funded a research team (John S Horvath, Ph.D., P.E.
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A-5 Date: Agency or Company: Name of Person Preparing Questionnaire: Title of Person Preparing Questionnaire: Postal Mail Address: City: State: Zip Code: Telephone Number: Telefax Number: E-mail address: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - Please return the completed questionnaire no later than November 30, 1999 to Mr. David Arellano, P.E., Graduate Research Assistant: • by postal mail: David Arellano University of Illinois Department of Civil and Environmental Engineering Newmark Civil Engineering Laboratory 205 North Mathews Avenue Urbana, IL 61801-2352 • by telefax: (217)
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A-6 • by telephone: (217) 333-6940 Part A The purpose of this part is to help us identify extreme opinions, i.e.
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A-7 A3bii: To help us understand what aspect(s) of EPS-block geofoam most need improvement, what is the primary negative aspect or issue that you can state about this material in road applications?
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A-8 a design alternative involving EPS-block geofoam in road construction? This will help us identify those items that need to be closely evaluated for the purpose of optimization or possibly even elimination in design in order to minimize overall project cost.
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A-9 Question B5: If you ever used EPS-block geofoam from a supplier, or if you are a supplier, who offers third-party certification for the manufactured quality of EPS block: B5i: Do you rely solely on this or do you still do supplemental random sampling and testing of the EPS after it is delivered to the job site? B5ii: Have you ever had a problem (such as, but not limited to, material not conforming)
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A-10 Question B7: Do you have any of the following supporting documentation that you think may be helpful to us in achieving the research objectives and that you would be willing to provide (we will contact you for follow up)
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A-11 Question A1: Which category best describes the agency or company you represent: design engineer [ ] EPS molder [ ]
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A-12 2. Although Delaware does have soft soil conditions in certain areas, the potential problems associated with these soils are mitigated by more conventional methods such as prefabricated vertical drains, surcharging, etc.
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A-13 13. We have placed geofoam on the pre-approved materials list for a lightweight fill.
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A-14 with using EPS-blocks. More conventional treatment methods such as surcharging with prefabricated vertical drains and use of a bridge structure are preferred by some agencies over EPS-block geofoam.
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A-15 8. Reduction in load applied to weak subgrade soils (lightweight fill)
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A-16 5. No other problem but cost.
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A-17 design against differential icing (Chapter 4) , lack of information about facing requirements if a vertical embankment is used, density uniformity on blocks obtained at the site (Chapter 9)
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A-18 12. Same response as A3Bii second and third items.
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A-19 concrete slab if a concrete cap is used (Chapter 6)
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A-20 13. Special site preparation, especially in areas with a high water table.
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A-21 8. Don't know.
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A-23 1. The construction contract that included the specification was recently awarded and construction activity has not taken place.
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A-24 between the relationship of density and compressive strength and the long term creep performance of EPS. These two concerns are addressed in Chapter 2 and 9.
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A-25 9. No third party was involved.
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A-26 12. Yes, density of blocks varied considerably in one particular tractor trailer load with some blocks not meeting density criterion.
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A-27 9. Amount of cover for the different geofoam densities.
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A-28 Ten respondents indicate that they have construction plans, specifications, design reports, cost information, field instrumentation data, or photographs.
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TABLE A.1 PROJ 24-11.doc AR MI CO MN CT MT DE NE GA NV HI NY IA OH ID OR IL SC IN UT KS WA KY WI LA WY A-29
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TABLE A.2 PROJ 24-11.doc STATE YEAR QUANTITY m3 (yd3) Bid Price in U.S.
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TABLE A.3 PROJ 24-11.doc Agency or Company Plans Specifications Design Reports Cost Estimates and Comparisons Field Instrumentation /Performance Data Photographs CTDOT X MIDOT X X MOLDER X X X WADOT X X X X X WYDOT X X X X X KSDOT X X INDOT X X X X X ILDOT X X X X X UTDOT X X X X X X NYDOT X X X X X A-31
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