Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Design method of modified emulsified asphalt micro-surfacing mixture in high-hygrothermal environment
The invention provides a design method of a modified emulsified asphalt micro-surfacing mixture in a high-humidity-heat environment. The design method comprises the following steps: (1) taking mineral aggregate; (2) taking a modified emulsified asphalt cementing material; (3) determining the estimated asphalt-aggregate ratio of the modified emulsified asphalt cement according to the grading of the mineral aggregate, and determining the water consumption and the admixture cement consumption; (4) forming an asphalt-aggregate ratio-performance coordinate graph, and obtaining the optimal asphalt-aggregate ratio; (5) determining the asphalt-aggregate ratio, and adjusting the using amount of the cementing material by taking the estimated asphalt-aggregate ratio as a median value to prepare standard test pieces for a wet wheel abrasion test and a load wheel sand burning test with different asphalt-aggregate ratios; and (5) detecting whether the pavement performance of the micro-surfacing mixture under the optimal asphalt-aggregate ratio is qualified or not. Based on the characteristics of an emulsified asphalt material, the invention provides a design method based on a hot water immersion wet wheel abrasion test and a load wheel sand burning test. The design method is easy to operate, the performance characteristics of the micro-surfacing mixture are comprehensively considered, and the applicability is good.
本发明提供了一种高湿热环境下改性乳化沥青微表处混合料设计方法，包括以下步骤：(1)取矿质集料；(2)取改性乳化沥青胶结料；(3)根据矿质集料的级配确定所用改性乳化沥青胶结料的预估油石比，确定用水量与外掺剂水泥用量；并以预估油石比为中值调整胶结料用量，制成不同油石比的湿轮磨耗试验与负荷车轮粘砂试验标准试件，(4)形成油石比‑性能坐标图，得到最佳油石比；(5)检测最佳油石比下的微表处混合料的路用性能是否合格。本发明基于乳化沥青材料特点，提出以浸热水湿轮磨耗试验和负荷车轮粘砂试验为基础的设计方法。该设计方法操作简单，综合考虑微表处混合料性能特点，适用性好。
Design method of modified emulsified asphalt micro-surfacing mixture in high-hygrothermal environment
The invention provides a design method of a modified emulsified asphalt micro-surfacing mixture in a high-humidity-heat environment. The design method comprises the following steps: (1) taking mineral aggregate; (2) taking a modified emulsified asphalt cementing material; (3) determining the estimated asphalt-aggregate ratio of the modified emulsified asphalt cement according to the grading of the mineral aggregate, and determining the water consumption and the admixture cement consumption; (4) forming an asphalt-aggregate ratio-performance coordinate graph, and obtaining the optimal asphalt-aggregate ratio; (5) determining the asphalt-aggregate ratio, and adjusting the using amount of the cementing material by taking the estimated asphalt-aggregate ratio as a median value to prepare standard test pieces for a wet wheel abrasion test and a load wheel sand burning test with different asphalt-aggregate ratios; and (5) detecting whether the pavement performance of the micro-surfacing mixture under the optimal asphalt-aggregate ratio is qualified or not. Based on the characteristics of an emulsified asphalt material, the invention provides a design method based on a hot water immersion wet wheel abrasion test and a load wheel sand burning test. The design method is easy to operate, the performance characteristics of the micro-surfacing mixture are comprehensively considered, and the applicability is good.
本发明提供了一种高湿热环境下改性乳化沥青微表处混合料设计方法，包括以下步骤：(1)取矿质集料；(2)取改性乳化沥青胶结料；(3)根据矿质集料的级配确定所用改性乳化沥青胶结料的预估油石比，确定用水量与外掺剂水泥用量；并以预估油石比为中值调整胶结料用量，制成不同油石比的湿轮磨耗试验与负荷车轮粘砂试验标准试件，(4)形成油石比‑性能坐标图，得到最佳油石比；(5)检测最佳油石比下的微表处混合料的路用性能是否合格。本发明基于乳化沥青材料特点，提出以浸热水湿轮磨耗试验和负荷车轮粘砂试验为基础的设计方法。该设计方法操作简单，综合考虑微表处混合料性能特点，适用性好。
Design method of modified emulsified asphalt micro-surfacing mixture in high-hygrothermal environment
一种高湿热环境下改性乳化沥青微表处混合料设计方法
YANG LIMING (Autor:in) / ZHOU QIAN (Autor:in) / YANG FAN (Autor:in) / HE LIHONG (Autor:in) / LI YINGCHUN (Autor:in) / CHEN QIANG (Autor:in)
14.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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