PHASE II REPORT - Caltrans

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5.1 Slurry/Micro-Surfacing Mix Design Training Course The training course to be developed under this effort will be designed to provide basic training on the development and application of the new mix design procedure. The training materials, as discussed in greater detail below, will include a Reference Manual, a set of training course visual aids (in electronic format), and an Instructor’s Guide. The course will be designed for presentation over a 1.5-day period and will include two workshops. In developing the workshops, the goal will be to incorporate “hands-on” exercises that not only advance the learning, but help generate some enthusiasm and interaction among the participants, as well. The materials for this course will be developed to be compatible with National Highway Institute’s (NHI’s) Guidelines for Training Materials because the NHI has set the standard for training materials. 5.2.1 Reference Manual This manual will be a detailed, stand-alone document that covers all the key aspects of the new mix design procedure. It will be referenced throughout the course to help familiarize the participants with the contents and improve its use as a technical resource. Table F-1 provides an outline of the manual as it is currently envisioned. Technical leadership for this effort will be supplied by Jim Moulthrop. The key staff that will participate in its development include Glynn Holleran, Dragos Andrei, Steven Seeds, and David Peshkin. 243
Table F.1: Draft Outline for Reference Manual Section Title/Description 1 Introduction • Background • Slurry/Micro-Surfacing Overview • Objectives and Scope of Manual 2 Project Selection Criteria 3 Pre-Construction Requirements 4 Specifications 5 Mix Design Criteria • Binder Requirements • Aggregate Requirements • Blending Requirements 6 Test Methods and Procedures • Framework • Mechanisms • Significance of Test Variables • Protocols 7 Construction Considerations and Limitations • Project Geometry • Weather Limitations 8 Construction Operations • Surface Preparation • Equipment and Calibration Requirements • Mix Design Verification • Stockpile Management • Troubleshooting • Inspection and Workmanship Requirements 9 QC/QA Requirements • Pre-Construction and Construction Testing Requirements • Frequency and Type of Test 10 Troubleshooting - References - Appendices • Test Methods • Specifications 5.2.2 Visual aids Visual aids are required to present the training course material in a clear, consistent, and organized fashion. They will be prepared in electronic format using Microsoft PowerPoint®. This is a standard tool for NHI training courses and is very effective for both preparation and presentation of visual aids. Where appropriate, animation will be included in certain slide images to either emphasize certain points or provide an additional aid in understanding the message. Video clips of certain processes will also be included where they can provide the most benefit. 244
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PHASE II REPORT Slurry Seal / Micro
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CALTRANS Fugro Consultants, Inc. Co
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CALTRANS Fugro Consultants, Inc. Co
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For the Phase II work, the research
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2.0 CHAPTER 2 INTRODUCTION 2.1 BACK
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3.0 Findings from the ruggedness te
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START Test Mix Components Accept Ma
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For all the above considerations, t
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Type II and III microsurfacings are
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“M” Refers to an ASSHTO Standar
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Viscosity: A property of the mix th
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3.6.2 The European Mixing Test Base
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Mix Torque kg-cm 70 60 50 40 30 20
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Clamping Pressure 200Kpa Interface
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Samples Holes 0.8 inches (~0.20 mm
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• Abrasion: CAT. This test may be
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3.7.1 Step 1: Materials Selection T
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3.7.6 Step 6: Evaluate the Long Ter
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4.2 LABORATORY TEST METHODS DEVELOP
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Table 4.2.2: TB-113 Results for Mix
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In addition to the “base mixture
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The resulting mix had the following
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Features: Produces a tangential flo
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Mixing Containers type and size: a.
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• 50 rpm mixing speed This config
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The shape of the traces for differe
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Figure 4.10: Mix M4 Trace with Stan
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The recommended mixing procedure fo
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Figure 4.14: AMT Trace for Mix M1,
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Figure 4.16: Automated Cohesion Tes
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As illustrated in Figures 4.17 and
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Note that the ratio of the two aver
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• Dry Loss Method - Two identical
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Loss (%) 35 30 20 15 10 5 0 Effect
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The differences in the samples were
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Both systems were correctly defined
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Time (Min) Wet Loss M1 (g) Table 4.
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observation. For long term abrasion
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4.3.2 Evaluation of Cohesion-Abrasi
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4.4 REVISED MIX DESIGN METHOD (VERS
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Step 5: Evaluate the Cohesion Prope
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5.0 CHAPTER 5 RUGGEDNESS TESTING 5.
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These levels will be far enough apa
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5.3.3 ACT Test For this test, the c
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6.1.2 AGGREGATE Mineral aggregate s
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shall perform the mix design. The p
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6.5.2 TEST STRIP. With the coordina
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6.6.5 MACHINE CALIBRATION. Each uni
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6.7 METHOD OF MEASUREMENT 6.7.1 ARE
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Delays in the progress of the resea
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2.4 IDA Werke EUROSTAR Power contro
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4.3 If the mix does not break, the
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8.0 PROCEDURE 8.1 Maintain the aggr
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11.2.1.1 BT: brown color transfer t
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Note: Closing all other programs ru
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− Eurostar mixer - the parameter
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Figure A.5: Display of Functional U
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To stop the test, select the drop d
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2.3 ISSA TB-100, Test Method for We
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5.4 Suitable specimen casting mold
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8.2 The amounts of material compone
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9.2 Completely cover the specimen w
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APPENDIX C RESULTS OF RUGGEDNESS AM
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Figure C.2: Ruggedness Trials Trial
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Figure C.4: Ruggedness Trials Trial
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CEL#: 10-17749 LAB #: Date Tested:
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CAT: COHESION ABRASION TEST (FRENCH
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2.CAT-Cohesion Abrasion Test: Frenc
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GRADATION ANALYSIS FOR AGGREGATE A1
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Source: Lopke (A2) Aggregate: ISSA
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GRADATION ANALYSES FOR AGGREGATE A3
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SODIUM SULFATE SOUNDNESS FOR AGGREG
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SODIUM SULFATE SOUNDNESS FOR AGGREG
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ABRASION LOSS BY AASHTO T-96 FOR AG
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SAND EQUIVALENT FOR AGGREGATES A1,
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ABRASION LOSS BY ASTM D6928 FOR AGG
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CEL# 10-17749 Source: Sem Materials
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CEL# 10-17749 Source: VSS Emultech
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CEL# 10-17749 Source: Ergon Materia
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Page 229 and 230: Aggregates: Emulsions: Mixes: CAT R
Page 231 and 232: ACT RESULTS FOR ALL MIXES TEST RESU
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Page 247: not effective if placed on pavement
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PHASE II REPORT - Caltrans

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