{"id":964,"date":"2026-07-25T01:55:25","date_gmt":"2026-07-25T01:55:25","guid":{"rendered":"http:\/\/localhost:8081\/soyleitechnologies\/sip-1111-mason-city-iowa-high-rap\/"},"modified":"2026-08-01T13:44:06","modified_gmt":"2026-08-01T13:44:06","slug":"sip-1111-mason-city-iowa-high-rap","status":"publish","type":"post","link":"https:\/\/soylei-dev.ecochran.dyndns.org\/soyleitechnologies\/sip-1111-mason-city-iowa-high-rap\/","title":{"rendered":"Mason City, Iowa: SIP-1111\u2122 in a 45% RAP Mix Comparison"},"content":{"rendered":"

The Mason City demonstration results compare a 45% RAP design with SIP-1111\u2122<\/strong> against a matched 45% RAP TuffTrek design. The SIP-1111\u2122 design reports the higher CT Index and DCT fracture energy in that comparison.<\/p>\n

Reported high-RAP comparison<\/h2>\n

In the source deck’s 45% RAP summary comparison, the SIP-1111\u2122 design reports a Cracking Tolerance Index of 119.4<\/strong> and DCT fracture energy of 490.67 J\/m\u00b2<\/strong>. The TuffTrek design reports CT Index 101.54<\/strong> and DCT fracture energy of 363 J\/m\u00b2<\/strong>. Higher values indicate stronger cracking-test response for both measures.<\/p>\n

The deck also reports a 35% RAP control at CT Index 104.22<\/strong> and DCT fracture energy 480.33 J\/m\u00b2<\/strong>. That control uses a different binder and RAP design, so the direct high-RAP product comparison remains the two 45% RAP designs.<\/p>\n

What the result means<\/h2>\n

Mason City gives producers a direct, same-RAP comparison between SIP-1111\u2122 and another recycling-agent design. The result pairs 45% recycled content with stronger reported values in two complementary cracking tests.<\/p>\n

\n \"Two-panel\n <\/picture>
Mason City matched 45% RAP cracking comparison<\/strong> The SIP-1111\u2122 design produced the higher CT Index and DCT fracture energy in the matched 45% RAP comparison.<\/figcaption><\/figure>\n
\n

Higher CT Index and DCT fracture energy are favorable.<\/p>\n

\n\n\n\n\n\n\n
Mason City 45% RAP cracking-test comparison.<\/caption>\n
Treatment<\/th>\nRAP (%)<\/th>\nCT Index<\/th>\nDCT fracture energy (J\/m\u00b2)<\/th>\n<\/tr>\n<\/thead>\n
TuffTrek<\/th>\n45<\/td>\n101.54<\/td>\n363<\/td>\n<\/tr>\n
SIP-1111\u2122<\/th>\n45<\/td>\n119.4<\/td>\n490.67<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Source: SIP-1111\u2122 Demo Paving Results<\/a>. Slide 5, Mason City, IA Demonstration Results, second and third rows<\/p>\n<\/div>\n

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

Source Documents<\/h2>\n