Effectiveness of remote control for a concrete surface grinding machine

Moon, Sungwoo; Yang, Byongsoo; Kim, Jeonghwan; Seo, Jongwon

doi:10.1016/j.autcon.2010.03.001

Cited by 13 publications

(11 citation statements)

References 7 publications

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“…The path planner, developed in an Auto-Lisp environment, then generates a work plan to grind the uneven surfaces. When the surface grinding covers the entire surface area of the concrete pavement, the path planner can identify minimum travel distance using the field-surveyed CAD data (Moon et al 2010).…”

Section: Remote Control For Concrete Surface Grindingmentioning

confidence: 99%

Prototyping a remotely-controlled machine for concrete surface grinding operations

Moon

Kim

Seo

2016

Journal of Civil Engineering and Management

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The surface of concrete pavement needs to be flattened for the smoothness and comfortability of highways. Surface grinding can provide flatness in the hardened concrete surface, and improve adhesion between the existing concrete surface and the subsequent layer. The surface grinding process, however, is executed under hazardous work conditions and the outcome is affected by a machine operator’s skill. Automation of this process can provide a hazard-free work environment and increase the quality of the ground surface. This paper presents an application of an automated concrete surface grinding machine that an operator can remotely control with computer assistance. A combination of hardware and software technologies was applied to prototype automated functions of the machine. Field tests demonstrated that remote control of concrete surface grinding is feasible and can be utilized as a semi-automated scheme on actual construction sites.

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Section: Remote Control For Concrete Surface Grindingmentioning

confidence: 99%

Prototyping a remotely-controlled machine for concrete surface grinding operations

Moon

Kim

Seo

2016

Journal of Civil Engineering and Management

Self Cite

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“…For this reason, the demand for the removal of deteriorated parts is steadily increasing. Currently, conventional cutting methods, such as drill cutting, water jet and diamond saw cutting, are still in use [1][2][3][4][5]. Conventional cutting methods are time consuming and relatively low precision.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Characteristics of Cement-Based Materials Fabricated Using Multi-Mode Fiber Laser

2020

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Cement-based materials are the most prevalent construction materials, and the conventional cutting techniques are still mostly used for fabricating the materials. However, these conventional cutting methods could generate undesirable micro-cracks and remove unintentional structural sections. This experimental study aims to evaluate the effects of the new fabricating method using laser on the microstructural characteristics of the cement-based materials. The experimental variables are laser cutting speed, water to cement ratio and material compositions. In order to compare the microstructure before and after the laser interaction, the microstructure of the cut surface is observed through scanning electron microscopy/energy dispersive X-Ray (SEM/EDX). After the laser interaction, the Material Removed Zone (MRZ) and Heat Affected Zone (HAZ) are observed on the cut surface. In MRZ, it is found that the glassy layer is thickened by an increasing amount of silicate-based materials in cement-based materials. In addition, it concluded that the amount of silicate-based material mixed in the cement-based materials affects the laser cutting quality.

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“…Conventional material removal methods, such as waterjet cutting and diamond blade cutting, are still mostly used for concrete processing. Moon et al [1] reported that the performance to confirm whether the computer-aided design (CAD) based path planner could be fulfilled in the remote control of concrete surface grinding. Skarabis and Stöckert [2] used diamond grinding to optimize the noise emission reduction of concrete pavement surfaces.…”

Section: Introductionmentioning

confidence: 99%

High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials

2020

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This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material compositions such as cement paste, cement mortar and ultra high performance concrete (UHPC). The laser cutting performance on the cement-based materials is investigated in the downward laser direction. The kerf width and penetration depth of the cement-based materials are quantitatively evaluated with the parameters in the surface and cross section of the specimens after the laser cutting. Moreover, the material removal zone of each specimen is compared in terms of the penetration shapes in the cross-sectional view. Based on experimental observations, the interaction mechanism between the laser and cement-based materials is proposed.

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Effectiveness of remote control for a concrete surface grinding machine

Cited by 13 publications

References 7 publications

Prototyping a remotely-controlled machine for concrete surface grinding operations

Prototyping a remotely-controlled machine for concrete surface grinding operations

Microstructural Characteristics of Cement-Based Materials Fabricated Using Multi-Mode Fiber Laser

High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials

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