ERDC/CERL TR-09-9, Environmentally Friendly .“Six Sins of Greenwashing ” (TerraChoice...

download ERDC/CERL TR-09-9, Environmentally Friendly .“Six Sins of Greenwashing ” (TerraChoice Environmental

of 99

  • date post

    07-Aug-2018
  • Category

    Documents

  • view

    212
  • download

    0

Embed Size (px)

Transcript of ERDC/CERL TR-09-9, Environmentally Friendly .“Six Sins of Greenwashing ” (TerraChoice...

  • ERD

    C/CE

    RL

    TR-0

    9-9

    Environmentally Friendly Cleaners for Removing Tar from Metal Surfaces

    Joyce C. Baird, Veera M. Boddu, Pam Khabra, and Wayne Ziegler April 2009

    Buffalo MPRC Vehicle

    Con

    stru

    ctio

    n E

    ngi

    nee

    rin

    g R

    esea

    rch

    Lab

    orat

    ory

    Approved for public release; distribution is unlimited.

  • ERDC/CERL TR-09-9 April 2009

    Environmentally Friendly Cleaners for Removing Tar from Metal Surfaces

    Joyce C. Baird, Veera M. Boddu Construction Engineering Research Laboratory (CERL) U.S. Army Engineer Research and Development Center 2902 Newmark Dr. Champaign, IL 61822-1076

    Pam Khabra Tank Automotive Research, Development & Engineering Center (TARDEC)

    Wayne Ziegler Army Research Laboratory (ARL)

    Final Report

    Approved for public release; distribution is unlimited.

    Prepared for Headquarters, U.S. Army Corps of Engineers

    Washington, DC 20314-1000

    Monitored by Army Research Laboratory, Aberdeen Proving Grounds, MD

  • ERDC/CERL TR-09-9 ii

    Abstract: As part of its mission, the Sustainable Painting Operations for the Total Army (SPOTA) working group evaluated solvents that will not impact the environment while cleaning armament equipment, in particular ground vehicles. ERDC-CERL researchers, in support of the SPOTA program, were tasked with conducting a preliminary study and develop a methodology to evaluate environmentally friendly cleaners that would be effective in cleaning road tar on military vehicles. The study involved an extensive literature review of commercial environmentally friendly tar removers (both products and methodologies). Twenty six commercial tar removal products were identified as possible solvents for removing the tar stains from ground vehicles. In addition, laboratory coupon evaluations were conducted using three select commercial products. This report presents the results of the search for commercial tar removal solvent systems, and a laboratory evaluation of select solvent systems for removing tar from steel coupons.

    DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. DESTROY THIS REPORT WHEN NO LONGER NEEDED. DO NOT RETURN IT TO THE ORIGINATOR.

  • ERDC/CERL TR-09-9 iii

    Table of Contents Figures and Tables.................................................................................................................................iv Preface.....................................................................................................................................................v 1 Introduction..................................................................................................................................... 1

    Background .............................................................................................................................. 1 Approach................................................................................................................................... 2 Objectives ................................................................................................................................. 2 Mode of technology transfer.................................................................................................... 2

    2 Properties of Asphalt ..................................................................................................................... 3 Chemical composition and properties of bitumen ................................................................. 3 Physical properties of asphalt ................................................................................................. 4 Forms of asphalt used in paving ............................................................................................. 5

    3 Summary of Commercial Tar Removers ...................................................................................... 6 4 Review of Experimental Protocols for Evaluation of Tar Removers from Metal

    Surfaces.........................................................................................................................................10 Introduction ............................................................................................................................10 Literature review of solvents and processes ........................................................................10

    5 Discussion of Literature and Experimental Protocol ...............................................................13 Protocol 1................................................................................................................................13

    Steps ...........................................................................................................................................13 Strengths and weakness ...........................................................................................................14

    Protocol 2................................................................................................................................15 Preparation of test strips ...........................................................................................................15 Assay...........................................................................................................................................15 Strengths and weakness ...........................................................................................................15

    6 Experimental Study......................................................................................................................17 Preparation of Test Strips ...................................................................................................... 17 Assay ....................................................................................................................................... 17 Evaluation of solvents ............................................................................................................18 Data analysis and interpretation ...........................................................................................19

    7 Conclusions and Recommendation ...........................................................................................20 References............................................................................................................................................21 Appendix A: Additional Information on Reviewed Tar Removing Solvent Systems.....................25 Appendix B: Material Safety Data Sheets........................................................................................31 Appendix C: Photographic Results of the Coupon Studies............................................................90 Report Documentation Page..............................................................................................................94

  • ERDC/CERL TR-09-9 iv

    List of Figures and Tables

    Figures

    C1 Coupon as received. .................................................................................................................90 C2 Coated coupon..........................................................................................................................90 C3 Asphalt drying after coating. ....................................................................................................90 C4 Lip at bottom. ............................................................................................................................ 91 C5 Diesel. ........................................................................................................................................ 91 C6 Bioclean; residue without water rinse..................................................................................... 91 C7 X-Force. ...................................................................................................................................... 91 C8 Bioclean coupon ridge removed before solvent dip: Note flash rust. ...............................92 C9 X-Force. ......................................................................................................................................92 C10 Axarel 32....................................................................................................................................92 C11 Bio T Max. ..................................................................................................................................92 C12 Diesel. ........................................................................................................................................93

    Tables

    1 Elemental analysis of select bitumen (Holleran et al. 2005). ................................................ 3 2 Summary of physical properties marathon petroleum asphalt.............................................. 4 3 Commercial tar removing solvents............................................................................................ 7 4 Cost and characteristics of solvents selected for testing......................................................18 5 Raw data for the three solvents evaluated.............................................................................19