Performance-related methods for the characterization of cold mix patching materials used in asphalt pavements maintenance

Article Construction & Building Technology

Multiscale performance of composite modified cold patch asphalt mixture for pothole repair

Xiaoying Wang et al.

Summary: Cold patch asphalt mixture (CPAM) has become the primary material for pothole repair due to its convenient storage, seasonal adaptability, and green maintenance feature. However, insufficient adhesion of CPAM may lead to secondary distress. In this study, composite modified CPAM is developed and its multiscale interfacial morphology and mechanical properties are explored.

CONSTRUCTION AND BUILDING MATERIALS (2023)

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Article Construction & Building Technology

Compaction characteristics assessment of cold mix patching materials through gyratory shear compactor

G. Cerni et al.

Summary: Cold mix patching materials (CMPMs) are widely used in pothole repair due to their ease of installation and environmental benefits. This study aims to improve understanding of the compaction process of CMPMs through laboratory tests, investigating the volumetric response and shear stress evolution of nine ready-to-use CMPMs at different temperatures. The results provide reliable densification curves and a two-stage model that correlates physical and mechanical responses of the mixtures.

CONSTRUCTION AND BUILDING MATERIALS (2023)

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Article Construction & Building Technology

Preparation and Road Performance of Solvent-Based Cold Patch Asphalt Mixture

Yongzhen Cheng et al.

Summary: This paper investigates the preparation and performance of cold patch asphalt mixtures (CPAMs) by mixing cold patch asphalt liquid (CPAL) with mineral mixture. The study examines the workability, Marshall stability, freeze-thaw splitting strength, and cohesion of three types of CPAMs. Experiments conducted on pothole repairs in Feidong show that CPAMs have good water stability and meet the requirements of hot mix asphalt (HMA) in low-rain regions. The study also observes the effects of compaction and additives on the measured properties of CPAMs.

INTERNATIONAL JOURNAL OF PAVEMENT RESEARCH AND TECHNOLOGY (2022)

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Review Construction & Building Technology

Asphalt-based cold patches for repairing road potholes - An overview

Raheb Hafezzadeh et al.

Summary: This article provides a critical comparison between using Cold Mix Patching Materials (CMPMs) and Hot Mix Asphalt (HMA) in repairing potholes, covering various aspects such as repair techniques, productivity, and costs. By investigating the impact of crucial factors on the performance of CMPMs, it is noted that there is a growing worldwide interest in these solutions that initially started as fragmented industrial initiatives.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Chemistry, Physical