{"id":956,"date":"2026-07-25T01:55:24","date_gmt":"2026-07-25T01:55:24","guid":{"rendered":"http:\/\/localhost:8081\/soyleitechnologies\/sip-1111-emily-minnesota-nrra-field-section-6003\/"},"modified":"2026-08-01T13:44:05","modified_gmt":"2026-08-01T13:44:05","slug":"sip-1111-emily-minnesota-nrra-field-section-6003","status":"publish","type":"post","link":"https:\/\/soylei-dev.ecochran.dyndns.org\/soyleitechnologies\/sip-1111-emily-minnesota-nrra-field-section-6003\/","title":{"rendered":"Emily, Minnesota: SIP-1111\u2122 in the TH 6 Recycling-Agent Study"},"content":{"rendered":"

On Trunk Highway 6 near Emily, Minnesota, a field study put seven recycling agents into 40% reclaimed asphalt pavement mixtures and tracked them beside 30% and 40% RAP controls. SIP-1111\u2122 appears in the report as 6003 (D1), US Soybean<\/strong>. The project provides a direct comparison across recovered-binder grade, mixture rheology, cracking tests, and field distress.<\/p>\n

\n \"Three-year
Figure 3-13(c) from Long-term Testing and Analysis on Asphalt Mix RA Field Sections<\/em>, showing the three-year black-space comparison at 20\u00b0C and 5 Hz.<\/figcaption><\/figure>\n

Project design<\/h2>\n

The National Road Research Alliance sections were constructed in August 2019. All seven recycling-agent mixtures used a PG 58-28 base binder, 40% RAP, and a supplier-selected dosage intended to reach a recovered grade of XX-34. The report identifies three controls: 30% RAP (D0), 40% RAP (D1), and 40% RAP (D2).<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
Code<\/th>\nReport description<\/th>\nAs-extracted continuous PG<\/th>\nRAP<\/th>\n<\/tr>\n<\/thead>\n
6001<\/td>\nCargill<\/td>\n58.1-37.6<\/td>\n40%<\/td>\n<\/tr>\n
6002<\/td>\nPoet<\/td>\n61.4-38.8<\/td>\n40%<\/td>\n<\/tr>\n
6003<\/td>\nUS Soybean \/ SIP-1111\u2122<\/td>\n54.9-38.4<\/td>\n40%<\/td>\n<\/tr>\n
6004<\/td>\nIngevity<\/td>\n62.6-33.7<\/td>\n40%<\/td>\n<\/tr>\n
6005<\/td>\nKraton<\/td>\n61.7-34.7<\/td>\n40%<\/td>\n<\/tr>\n
6006<\/td>\nAsphalt and Wax Innovations<\/td>\n66.8-30.5<\/td>\n40%<\/td>\n<\/tr>\n
6007<\/td>\nGeorgia Pacific<\/td>\n70.5-33.2<\/td>\n40%<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Three-year phase angle and dynamic modulus<\/h2>\n

At 20\u00b0C and 5 Hz, Figure 3-13(c) places 6003 at approximately 32 degrees phase angle and 2,600 MPa |E*|<\/strong>. Those are respectively the highest phase angle and lowest dynamic modulus among the seven recycling-agent sections. The nearest recycling-agent comparator is 6005 at approximately 29 degrees and 3,100 MPa. In this plot, higher phase angle and lower |E*| indicate a softer mixture with more relaxation capacity under the stated test condition.<\/p>\n

The metrics identify different strengths. The phase-angle and |E*| comparison favors 6003, the DCT result favors 6005, and the rutting data show no positive 6003 distinction.<\/p>\n

Glover-Rowe results<\/h2>\n

In the mixture Glover-Rowe analysis, lower and more-negative change relative to the 40% D1 control is favorable. The report identifies 6003 and 6005<\/strong> as the two exceptions to the general decline in recycling-agent effectiveness as field cores aged.<\/p>\n

\n \"Emily
Figures 4-11 and 4-12. After seven days at 95\u00b0C, 6003 is the only Day 1 recycling-agent section below both controls on binder Glover-Rowe, although every section is above the report’s warning threshold.<\/figcaption><\/figure>\n

Recovered-binder grades<\/h2>\n

The as-extracted 6003 binder grades PG 52-34<\/strong> under AASHTO M 320. After three years, binder recovered from the 6003 section grades PG 58-28, with continuous grade 62.1-33.5, while the 40% RAP Day 1 control grades PG 64-22, with continuous grade 72.0-27.7. The three-year samples came from small-cylinder specimens, so the report cautions against treating them as directly interchangeable with prior-year top-core samples.<\/p>\n

Field cracking context<\/h2>\n
\n \"Emily
Figure 5-1. The recycling-agent sections, including 6003, had less transverse cracking than the 40% RAP Day 1 control through three years; they did not outperform the 30% RAP control.<\/figcaption><\/figure>\n

What the project establishes<\/h2>\n

Emily shows how SIP-1111\u2122 behaved in one 40% RAP field design against a full recycling-agent set and two RAP levels of control mixture. The strongest 6003 results are the three-year phase-angle and |E*| position, project-specific PG 52-34 recovery, relative binder Glover-Rowe behavior after severe aging, and participation in the lower-cracking recycling-agent group. The DCT lead for 6005 and the rutting result complete the project tradeoff.<\/p>\n

Review SIP-1111\u2122<\/a> \u00b7 See related demonstration projects<\/a> \u00b7 Discuss a high-RAP application with SoyLei<\/a><\/p>\n

Source Documents<\/h2>\n