{"id":962,"date":"2026-07-25T01:55:25","date_gmt":"2026-07-25T01:55:25","guid":{"rendered":"http:\/\/localhost:8081\/soyleitechnologies\/sip-1111-indiana-soybean-association-fuel-paper\/"},"modified":"2026-08-01T13:44:06","modified_gmt":"2026-08-01T13:44:06","slug":"sip-1111-indiana-soybean-association-fuel-paper","status":"publish","type":"post","link":"https:\/\/soylei-dev.ecochran.dyndns.org\/soyleitechnologies\/sip-1111-indiana-soybean-association-fuel-paper\/","title":{"rendered":"Indiana Soybean Association: A 40% RAP SIP-1111\u2122 Demonstration"},"content":{"rendered":"

This 500-ton parking-lot trial was placed at the Indiana Soybean Alliance headquarters in Indianapolis<\/strong>, with the mixture produced at a Noblesville-area plant<\/strong>. The peer-reviewed Fuel<\/em> paper compares a 40% RAP SIP-1111\u2122 section against a 25% RAP control and reports the complete cracking-and-rutting performance tradeoff.<\/p>\n

The same parking lot contained a separate BioMAG\u2122 section. This article covers the SIP-1111\u2122-only section reported in Fuel<\/em>; the BioMAG\u2122 section article<\/a> covers its combined rejuvenator-and-biopolymer formulation and project-summary results.<\/p>\n

Field comparison<\/h2>\n

The design used a PG 64-22 base binder. The treated section contained 40% RAP and SIP-1111\u2122 at 5.7% by weight of neat binder<\/strong>; the control contained 25% RAP.<\/p>\n

\n\n\n\n\n\n\n\n\n
Measure<\/th>\n25% RAP control<\/th>\n40% RAP treated section<\/th>\nInterpretation<\/th>\n<\/tr>\n<\/thead>\n
Recovered binder PG<\/td>\nPG 64-22<\/td>\nPG 64-28<\/td>\nColder low-temperature grade in this field comparison<\/td>\n<\/tr>\n
\u0394Tc<\/td>\n-3.6\u00b0C<\/td>\n0.2\u00b0C<\/td>\nMore favorable cracking-related binder result<\/td>\n<\/tr>\n
DCT fracture energy<\/td>\n376.0 J\/m\u00b2<\/td>\n506.7 J\/m\u00b2<\/td>\nHigher fracture energy in the treated section<\/td>\n<\/tr>\n
Hamburg rut depth<\/td>\n2.6 mm<\/td>\n6.7 mm<\/td>\nHigher rut depth in the treated section<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

EMS and SIP-1111\u2122 follow different chemistry paths<\/h2>\n

The paper separately evaluates epoxidized methyl soyate (EMS) and the partially epoxidized soybean-oil chemistry commercialized as SIP-1111\u2122. In the VTB dose-response study, SIP-1111\u2122 retained low RTFO mass loss, while EMS reached 1% RTFO mass loss at 10% dosage that the authors attributed to methanol evolution. The Indianapolis field section used the SIP-1111\u2122 chemistry.<\/p>\n

What the Indiana result establishes<\/h2>\n

The demonstration connects a commercially produced 40% RAP mixture to recovered-binder grade, \u0394Tc, DCT, and Hamburg measurements. Against the 25% RAP control, the SIP-1111\u2122 section produced the colder recovered-binder low-temperature grade, a more favorable \u0394Tc, and higher DCT fracture energy, together with higher measured Hamburg rut depth.<\/p>\n

\n \"Two-panel\n <\/picture>
Indiana field-system cracking and rutting results<\/strong> The higher-recycled-content SIP-1111\u2122 field system delivered higher DCT fracture energy with greater Hamburg rut depth than the 25% RAP control.<\/figcaption><\/figure>\n
\n

Higher DCT fracture energy and lower Hamburg rut depth are favorable; the systems differ in RAP content.<\/p>\n

\n\n\n\n\n\n\n\n\n
Mean field-system results with reported standard deviations.<\/caption>\n
Field system<\/th>\nRAP (%)<\/th>\nMetric<\/th>\nMean<\/th>\nStandard deviation<\/th>\nUnit<\/th>\n<\/tr>\n<\/thead>\n
25% RAP control<\/th>\n25<\/td>\nDCT fracture energy<\/td>\n376<\/td>\n19<\/td>\nJ\/m\u00b2<\/td>\n<\/tr>\n
40% RAP + SIP-1111\u2122<\/th>\n40<\/td>\nDCT fracture energy<\/td>\n506.7<\/td>\n26<\/td>\nJ\/m\u00b2<\/td>\n<\/tr>\n
25% RAP control<\/th>\n25<\/td>\nHamburg rut depth<\/td>\n2.6<\/td>\n0.31<\/td>\nmm<\/td>\n<\/tr>\n
40% RAP + SIP-1111\u2122<\/th>\n40<\/td>\nHamburg rut depth<\/td>\n6.7<\/td>\n0.91<\/td>\nmm<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Source: Hohmann et al., Fuel 355 (2023)<\/a>. Section 3.5 and Table 1, published PDF page 8<\/p>\n<\/div>\n

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

Source Documents<\/h2>\n