Full-Scale Testing of Flowable Cementitious Materials for Rapid Pavement Repair

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advances in Civil Engineering Materials Pub Date : 2021-03-12 DOI:10.1520/ACEM20190150

William D. Carruth, L. Edwards, J. Tingle, Isaac L. Howard

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引用次数: 1

Abstract

Flowable technologies that make use of hydraulic cements are relied upon in many ways for infrastructure, operations, and contingency activities. The primary objective of this paper is to report full-scale performance findings from testing of rapid-setting flowable fill (RSFF) as an expedient pavement repair technology in hot and cold climates. The scenarios explored were hot climates where RSFF was used as the surface of the repair and directly trafficked by an aircraft simulator load cart and cold climates where RSFF was used as an expedient backfill underneath a rapid-setting concrete (RSC) cap. Twelve expedient pavement repairs were investigated in this study. The data collected showed that RSFF is capable of being used as an expedient repair surface in hot weather and as a high-quality backfill in cold weather. All repairs withstood 112 passes of an aircraft load cart after approximately 2 hours of cure time, thus demonstrating the viability of RSFF as a temporary surface in hot weather conditions and as a backfill material with an RSC cap in cold weather conditions. Aluminum sulfate was tested as an accelerating admixture for cold weather conditions, but it did not perform well. The most efficient manner of using RSFF in cold weather was to heat the mix water.

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用于路面快速修复的可流动胶凝材料的全尺寸试验

利用水力水泥的可流动技术在许多方面都依赖于基础设施、作业和应急活动。本文的主要目的是报告快速凝固流动填料(RSFF)作为一种权宜之计在冷热气候下的路面修复技术的全面性能结果。研究的场景包括:在炎热的气候条件下，RSFF被用作修复表面，并直接由飞机模拟器装载车运输;在寒冷的气候条件下，RSFF被用作快速固化混凝土(RSC)帽下的权宜之计回填。本研究调查了12种权宜之计路面修复。试验结果表明，在高温条件下可作为一种权宜之计的修复面，在低温条件下可作为一种高质量的回填体。在大约2小时的固化时间后，所有的修复都经受住了飞机装载车的112次穿越，从而证明了RSFF在炎热天气条件下作为临时表面的可行性，以及在寒冷天气条件下作为带有RSC帽的回填材料的可行性。在低温条件下，硫酸铝作为加速剂进行了试验，但性能不佳。在寒冷天气下，最有效的使用方式是加热混合水。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Civil Engineering Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.70

自引率

7.10%

发文量

期刊介绍： The journal is published continuously in one annual issue online. Papers are published online as they are approved and edited. Special Issues may also be published on specific topics of interest to our readers. Advances in Civil Engineering Materials provides high-quality, papers on a broad range of topics relating to the properties and performance of civil engineering materials. Materials Covered: (but not limited to) Concrete, Asphalt, Steel, Polymers and polymeric composites, Wood, Other materials used in civil engineering applications (for example, pavements, bridges, and buildings, including nonstructural building elements such as insulation and roofing), and environmental systems (including water treatment). Core Topics Covered: Characterization, such as chemical composition, nanostructure, and microstructure, Physical properties, such as strength, stiffness, and fracture behavior, Constructability, such as construction methods, quality control/assurance, life cycle analysis, and sustainability, Durability. Papers may present experimental or modeling studies based on laboratory or field observations. Papers relating to sustainability of engineering materials or to the impact of materials on sustainability of engineering structures are especially encouraged.