Specifications & binder performance
Superpave transition in Western Canada; performance-spec tests for rheologically simple bitumens; the CTAA specification-tweak and phase-angle papers.
Publications and public record
The evidence behind the advice.
Selected papers, patents, conference decks, and standards work — the public trail behind a career in asphalt binder technology.
Public downloads
Start with the deck that names the thesis.
The most recent public material is the 2026 Petersen Asphalt Research Conference (PARC) presentation — Laramie, Wyoming, July 2026. Sixteen slides, built entirely on public-sourced and peer-reviewed data.
- 01Responsible Asphalt Production: Asphalt Is a Choice, Not a Leftover — PARC 2026, PDF, 16 slides.
- 02Public and peer-reviewed data throughout; nothing client-confidential.
16slides in the PARC 2026 deck
0proprietary datasets used
16 slides. 0 proprietary datasets. Every claim public-traceable.
The public paper trail
The references you can check yourself.
These selected works trace the argument from binder rheology and specification logic into public standards discussion. Links point to public indexes, proceedings, award pages, and agency reports — not internal files — so you can follow the reasoning to its source.
CTAA 2024Phase Angle at Constant Modulus in Polymer Modified Asphalts — Kriz et al. (first author). Extends the constant-modulus phase-angle concept to modified binders. (TRID record)
CTAA 2020A Simple Binder Specification Tweak to Promote Best Performers — Kriz et al. (first author). CTAA Elaine Thompson Editor's Award. (TRID record)
CTAA 2023Efficient and Effective Specification for Asphalts of Today — Kriz et al. (first author). Ties modern binder-quality questions to practical specification choices. (CTAA abstracts)
Superpave 20212021 Superpave binder specification update — public sources on the M 320 / M 332 phase-angle safeguard. (Asphalt Magazine)
MassDOT / TRR 2026A 2026 MassDOT webinar and a peer-reviewed TRR paper (2026, with G. Rowe) — naming and citing the parameter. (webinar + journal)
AwardCTAA Elaine Thompson Editor's Award — the award record behind the 2020 presentation. (CTAA award page)
Selected work across the field
A public record that connects — organized the way the work does.
The value of a publication record isn't the count; it's the range. Deep binder science, refinery-aware product knowledge, specifications, recycling, and industry leadership — each feeding the next. Grouped by theme, the pattern is hard to miss.
Rheology & low-temperature performance
Glass transition and phase stability; physical aging in semi-crystalline binders; thermal history and phase compatibility; phase-incompatible binders.
Recycling & RAP
RAP–virgin binder blending and diffusion; diffusion in mixes; asphalt re-recycling.
Crude oil, asphaltenes & patents
Asphaltene effects on wax crystallization; property prediction for blended sources; upgrading with wax; a granted composition patent.
Industry leadership
Eurobitume President 2024–2025; former Chair, Asphalt Institute Technical Advisory Committee; active across CTAA, AAPT, ISAP, TRB, and E&E.
Awards & recognition
Asphalt Institute President's Awards; CTAA Norman W. McLeod Awards; CTAA Elaine Thompson Editor's Award; OAPC Earl Kee Volunteer of the Year.
30+papers, patents & publications — crude slate to field performance
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