Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-modulus asphalt mixture and design method thereof
The invention discloses a high-modulus asphalt mixture and a design method thereof, and belongs to the field of road engineering tests. In the mixture, the 25 DEG C needle penetration of the asphalt cement is required to be 15-30 (0.1 mm), the 60 DEG C dynamic shear complex modulus G * is greater than or equal to 12.0 kPa, the adhesive cement film thickness DA * is greater than or equal to 21 microns, the asphalt film thickness DA is 5-12 microns, the asphalt cement is newly added asphalt or new and old composite asphalt, and the new and old composite asphalt consists of aged asphalt of a milling material and the newly added asphalt. Compared with the prior art, the high-modulus asphalt mixture disclosed by the invention has the advantages of balanced pavement performance, excellent performances such as high temperature, low temperature, water stability and fatigue resistance, capability of maximally realizing 100% mixing application of a milling material, capability of greatly improving the utilization efficiency of a recycled asphalt mixture, simple process, high practicability and the like, and extremely high popularization and application value.
本发明公开了一种高模量沥青混合料及其设计方法，属于道路工程试验领域。所述混合料中，沥青胶结料的25℃针入度要求15‑30(0.1mm)，60℃动态剪切复数模量G*≥12.0kPa，胶浆膜厚度DA*≥21μm，沥青膜厚度DA为5μm‑12μm，所述沥青胶结料为新添加沥青或新老复合沥青，所述新老复合沥青由铣刨料的老化沥青和新添加沥青组成。与现有技术相比，本发明的高模量沥青混合料路用性能均衡，高、低温、水稳定及抗疲劳等性能优异，最大可实现铣刨料100％掺量应用，能够大幅提高再生沥青混合料利用效率，具有工艺简捷，实用性强等特点，具有极高的推广应用价值。
High-modulus asphalt mixture and design method thereof
The invention discloses a high-modulus asphalt mixture and a design method thereof, and belongs to the field of road engineering tests. In the mixture, the 25 DEG C needle penetration of the asphalt cement is required to be 15-30 (0.1 mm), the 60 DEG C dynamic shear complex modulus G * is greater than or equal to 12.0 kPa, the adhesive cement film thickness DA * is greater than or equal to 21 microns, the asphalt film thickness DA is 5-12 microns, the asphalt cement is newly added asphalt or new and old composite asphalt, and the new and old composite asphalt consists of aged asphalt of a milling material and the newly added asphalt. Compared with the prior art, the high-modulus asphalt mixture disclosed by the invention has the advantages of balanced pavement performance, excellent performances such as high temperature, low temperature, water stability and fatigue resistance, capability of maximally realizing 100% mixing application of a milling material, capability of greatly improving the utilization efficiency of a recycled asphalt mixture, simple process, high practicability and the like, and extremely high popularization and application value.
本发明公开了一种高模量沥青混合料及其设计方法，属于道路工程试验领域。所述混合料中，沥青胶结料的25℃针入度要求15‑30(0.1mm)，60℃动态剪切复数模量G*≥12.0kPa，胶浆膜厚度DA*≥21μm，沥青膜厚度DA为5μm‑12μm，所述沥青胶结料为新添加沥青或新老复合沥青，所述新老复合沥青由铣刨料的老化沥青和新添加沥青组成。与现有技术相比，本发明的高模量沥青混合料路用性能均衡，高、低温、水稳定及抗疲劳等性能优异，最大可实现铣刨料100％掺量应用，能够大幅提高再生沥青混合料利用效率，具有工艺简捷，实用性强等特点，具有极高的推广应用价值。
High-modulus asphalt mixture and design method thereof
一种高模量沥青混合料及其设计方法
SUN QIANG (Autor:in) / LIN JIANGTAO (Autor:in) / FAN LIANG (Autor:in) / MA SHIJIE (Autor:in) / LI YONGZHEN (Autor:in) / WEI JINCHENG (Autor:in) / LIANG HAO (Autor:in) / HU JIABO (Autor:in) / XIA YU (Autor:in) / WEI HUI (Autor:in)
29.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
G16C
/
C04B
Kalk
,
LIME
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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