レーザ照射によるゼオライトモルタル表面のガラス化に関する研究

概要

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Although laser is widely used for cutting, welding and surface treating metals, application of the laser for processing inorganic architectural materials is quite rare. In this study, the feasibility of using laser energy to form glass layers on mortar panels with zeolite aggregate was assessed. The effects of mix composition and laser irradiation parameters on the characteristics of the glass layer and on the flexural strength of zeolite mortar panels were investigated. It was found that the optimum mix composition and laser irradiation parameters for obtaining panels with high flexural strength and stable glass layers were as follows : zeolite particle size = 0.6 to 1.2 mm, W/(C+Z) = 25 to 30 %, cement/zeolite mass ratio = 1 : 2 to 1 : 3, Laser power = 1kW, beam diameter = 200 mm and work travel speed = 750 mm/min.
2001-09-30