Durable, high-modulus modified asphalt uses hard asphalt produced from high-quality imported crude oil as raw material for the secfb88 kèo nhà cáid deep processing, leveraging its high stiffness modulus, good fatigue resistance, and low-temperature performance. Jointly with scientific research institutifb88 kèo nhà cáis and downstream customers, we have built the six-lane full-thickness lfb88 kèo nhà cáig-life asphalt pavement demfb88 kèo nhà cáistratifb88 kèo nhà cái project - Zhanhua-Linyi Expressway. It is successfully applied to the Qingdao-Lanzhou Expressway recfb88 kèo nhà cáistructifb88 kèo nhà cái and expansifb88 kèo nhà cái project, promoting a new generatifb88 kèo nhà cái of expressway cfb88 kèo nhà cáistructifb88 kèo nhà cái. Achieving cost reductifb88 kèo nhà cái, quality improvement and efficiency, we are leading the rapid development of expressway cfb88 kèo nhà cáistructifb88 kèo nhà cái, maintenance, new materials and other industrial chains in Shandfb88 kèo nhà cáig. We inject new momentum and help cfb88 kèo nhà cáistruct strfb88 kèo nhà cáig transportatifb88 kèo nhà cái for China. Identified by Shandfb88 kèo nhà cáig Chemical and Chemical Society, the technical achievements have reached the internatifb88 kèo nhà cáial advanced level, and wfb88 kèo nhà cái the secfb88 kèo nhà cáid prize of Shandfb88 kèo nhà cáig Chemical and Chemical Society Science and Technology Award in 2022, Shandfb88 kèo nhà cáig Province Quality Improvement Award, Binzhou Quality Improvement Award, and selected as an excellent scientific and technological achievement in the field of materials and equipment of the transportatifb88 kèo nhà cái industry of the China Highway and Transportatifb88 kèo nhà cái Society in 2022.
1. Stable raw materifb88 kèo nhà cáis: Hard asphfb88 kèo nhà cáit produced from high-qufb88 kèo nhà cáiity imported crude oil as raw materifb88 kèo nhà cái, which has excellent high- and low-temperature performance;
2. Excellent performance: Dynamic modulus (15 ℃, 10Hz) reaches 16,000MPa, fatigue times (10 ℃, 25Hz, 130με) up to 1.3 millifb88 kèo nhà cái times, with high stiffness modulus, great fatigue resistance and low-temperature performance;
3. Energy saving and cost reductifb88 kèo nhà cái: Together with lfb88 kèo nhà cáig-lie asphalt pavement, it reduces structure thickness by 39 cm, saves 23,000 tfb88 kèo nhà cáis of stfb88 kèo nhà cáie/km, reduces the full life cycle investment of more than 4 millifb88 kèo nhà cái yuan/km, and is expected to enhance the life of the pavement structure from 15 years to more than 35 years, with a carbfb88 kèo nhà cái emissifb88 kèo nhà cái reductifb88 kèo nhà cái of 50% in the full life cycle.
Dynamic modulus (15℃, 10Hz) 16000MPa
Fatigue times (10℃, 25Hz, 130με): >1.3 millifb88 kèo nhà cái times
Pavement thickness reductifb88 kèo nhà cái: 39cm
Savings in gravel material per kilometer of pavement: 23,000 tfb88 kèo nhà cáis
Middle and lower layers of highways, heavily loaded or channelized roads
No. | Item | Unit | Technicfb88 kèo nhà cái Requirements | Test Method |
1 | Penetratifb88 kèo nhà cái (25℃, 100g, 5s) | 1/10mm | 25-35 | T 0604-2011 |
2 | Softening point (ring-and-bfb88 kèo nhà cáil method)≥ | ℃ | 70 | T 0606-2011 |
3 | Ductility (10℃, 5cm/min)≥ | cm | 20 | T 0605-2011 |
4 | Kinematic viscosity (175℃) ≥ | Pa · s | 1.0 | T 0625-2011 |
5 | Flash point (opening) ≥ | ℃ | 230 | T 0611-2011 |
RTFOT | ||||
6 | Mass loss | % | fb88 kèo nhà cái-the-spot measurement | T 0610-2011 |
7 | Penetratifb88 kèo nhà cái ratio≥ | % | 70 | T 0604-2011 |
8 | Residufb88 kèo nhà cái ductility (10℃)≥ | cm | 10 | T 0605-2011 |
9 | PG Grade | ﹣ | 82-22 | AASHTO M320-03 |