A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Small-particle-size and high-skid-resistance cold-mixed and cold-laid asphalt ultrathin wearing layer mixture and design method thereof
The invention discloses a small-particle-size and high-skid-resistance cold-mixed and cold-laid asphalt ultrathin wearing layer mixture and a design method thereof, and belongs to the field of road engineering tests. In the mixture, the screening passing rate of the 9.5 mm aggregate is 100%, the screening passing rate of the 4.75 mm aggregate is 80%-100%, the screening passing rate of the 2.36 mm aggregate is smaller than or equal to 35%, and the screening passing rate of the 0.075 mm aggregate is 4%-15%; the mixture cementing material adopts emulsified asphalt, the softening point of the residual evaporant of the emulsified asphalt is greater than or equal to 65 DEG C, and the dynamic shear complex modulus G * at 60 DEG C is greater than or equal to 3.5 kPa; the thickness DA of a mixture asphalt film is larger than or equal to 8.5 microns, the content of mucilage is 10%-20%, and the thickness DA * of a mucilage film is 30-40 microns. Compared with the prior art, the cold-mixed and cold-paved asphalt mixture disclosed by the invention is scientific and practical in design method, balanced in pavement performance, low in pavement noise, good in anti-skid effect, safe and durable.
本发明公开了一种小粒径高抗滑冷拌冷铺沥青超薄磨耗层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，所用集料9.5mm集料筛分通过率100％，4.75mm筛分通过率范围为80％‑100％，2.36mm集料筛分通过率≤35％，0.075mm筛分通过率为4％‑15％；混合料胶结料采用乳化沥青，乳化沥青残留蒸发物的软化点≥65℃，60℃动态剪切复数模量G*≥3.5kPa；混合料沥青膜厚度DA≥8.5μm，胶浆含量为10％‑20％，胶浆膜厚度DA*为30μm‑40μm。与现有技术相比，本发明的冷拌冷铺沥青混合料设计方法科学、实用，混合料路用性能均衡，路面噪音低、抗滑效果好，安全耐久。
Small-particle-size and high-skid-resistance cold-mixed and cold-laid asphalt ultrathin wearing layer mixture and design method thereof
The invention discloses a small-particle-size and high-skid-resistance cold-mixed and cold-laid asphalt ultrathin wearing layer mixture and a design method thereof, and belongs to the field of road engineering tests. In the mixture, the screening passing rate of the 9.5 mm aggregate is 100%, the screening passing rate of the 4.75 mm aggregate is 80%-100%, the screening passing rate of the 2.36 mm aggregate is smaller than or equal to 35%, and the screening passing rate of the 0.075 mm aggregate is 4%-15%; the mixture cementing material adopts emulsified asphalt, the softening point of the residual evaporant of the emulsified asphalt is greater than or equal to 65 DEG C, and the dynamic shear complex modulus G * at 60 DEG C is greater than or equal to 3.5 kPa; the thickness DA of a mixture asphalt film is larger than or equal to 8.5 microns, the content of mucilage is 10%-20%, and the thickness DA * of a mucilage film is 30-40 microns. Compared with the prior art, the cold-mixed and cold-paved asphalt mixture disclosed by the invention is scientific and practical in design method, balanced in pavement performance, low in pavement noise, good in anti-skid effect, safe and durable.
本发明公开了一种小粒径高抗滑冷拌冷铺沥青超薄磨耗层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，所用集料9.5mm集料筛分通过率100％，4.75mm筛分通过率范围为80％‑100％，2.36mm集料筛分通过率≤35％，0.075mm筛分通过率为4％‑15％；混合料胶结料采用乳化沥青，乳化沥青残留蒸发物的软化点≥65℃，60℃动态剪切复数模量G*≥3.5kPa；混合料沥青膜厚度DA≥8.5μm，胶浆含量为10％‑20％，胶浆膜厚度DA*为30μm‑40μm。与现有技术相比，本发明的冷拌冷铺沥青混合料设计方法科学、实用，混合料路用性能均衡，路面噪音低、抗滑效果好，安全耐久。
Small-particle-size and high-skid-resistance cold-mixed and cold-laid asphalt ultrathin wearing layer mixture and design method thereof
一种小粒径高抗滑冷拌冷铺沥青超薄磨耗层混合料及其设计方法
LIN JIANGTAO (author) / FAN LIANG (author) / MA SHIJIE (author) / LI YONGZHEN (author) / XIA YU (author) / WEI JINCHENG (author) / BI FEI (author) / LIANG HAO (author) / WEI HUI (author) / ZHOU SHENGJIE (author)
2024-04-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Cold-mixed and cold-laid ultrathin asphalt wearing layer and preparation method thereof
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