路基石灰稳定改良土摩擦性能试验分析

IF 0.5 4区 工程技术 Q4 ENGINEERING, MECHANICAL
Yubian Wang, Rui Li, Ruilin Chen, Rong Huang
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引用次数: 0

摘要

随着交通基础设施建设的不断完善,不仅改善了道路交通条件,也促进了国民经济的发展。许多高速公路投入使用后发现,虽然质量和性能达到设计要求,但随着车辆的磨损,路面的防滑性能逐渐下降。因此,考虑在基材中添加固化剂,以提高路面的防滑性和耐磨性。由于连续的干湿循环,混凝土强度的黏度降低,内摩擦角也降低。以上反力变化证明,可根据弹性模量下降率预测混凝土强度质量,对路基工程的质量和验收有技术论证。本文以固化聚合物对路面基层材料质量和性能的影响为基础,根据不同聚合物在路面基层材料上的物理结构和化学反应变化,采用石灰等不同的添加剂在混凝土材料之间形成粘结。我们希望提高聚合物在路面基层材料中的耐磨性和透气性。根据复合试验中不同配比稳定剂对路面基层材料强度的变化趋势,设计了土-石灰固化稳定剂。我们进一步优化了所选材料和配比方案,以满足不同路基的强度、透气性、耐久性等指标的要求,即提高路基的耐磨性,形成相应的材料配比模型。通过试验分析,从试验参数和微观观察两方面证明了固化剂对混凝土粘结面的孔隙结构具有定凝作用,为解决公路建设中复杂路面的要求提供了科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Experimental Analysis on the Friction Performance of Improved Soil Stabilized by Lime in Subgrade

Experimental Analysis on the Friction Performance of Improved Soil Stabilized by Lime in Subgrade

With the continuous improvement of transportation infrastructure construction, it not only improves the road traffic conditions, but also promotes the development of the national economy. After many highways are put into use, it is found that although the quality and performance meet the design requirements, the anti-skid performance of the pavement gradually decreases with the wear of vehicles. Therefore, it is considered to add a curing agent in the base material to improve the anti-skid and wear resistance of the pavement. The viscosity of concrete strength is reduced and the internal friction angle is also reduced due to the continuous dry-wet cycle. The above reaction changes prove that the quality of concrete strength can be predicted according to the decline rate of elastic modulus, and the quality and acceptance of subgrade engineering can be technically demonstrated. In this paper, based on the influence of solidified polymer on the quality and performance of pavement base material, according to the physical structure and chemical reaction changes of different polymers on pavement base material, we use different additives such as lime to form adhesion between concrete materials. We hope to improve the wear resistance and permeability of polymer on pavement base material. According to the changing trend of the strength of the pavement base material caused by the different proportions of the stabilizer in the conjugate test, we designed the soil-lime solidification stabilizer. We further optimized the selected materials and the proportion scheme to meet the requirements of the strength, permeability, durability, and other indicators of different roadbeds, which is to improve the wear resistance of the roadbed and form the corresponding material proportion model. Through experimental analysis, from the test parameters and microscopic observation, we prove that the curing agent has a setting effect on the pore structure of the concrete bonding surface, which provides a scientific basis for solving the requirements of complex pavement in highway construction.

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来源期刊
Journal of Friction and Wear
Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
1.50
自引率
28.60%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.
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