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http://dx.doi.org/10.12654/JCS.2014.30.3.04

Material Characteristics of Traditional Bricks used in the Royal Tomb of King Muryeong, Gongju, Korea and Its Reproduction Bricks  

Kwon, Yang Hee (Department of Architecture & Architectural Engineering, Seoul National University)
Hong, Sung Gul (Department of Architecture & Architectural Engineering, Seoul National University)
Publication Information
Journal of Conservation Science / v.30, no.3, 2014 , pp. 287-298 More about this Journal
Abstract
This study investigates the material properties of the traditional bricks used in the royal tomb of King Muryeong. Compressive strengths, thermal conductivities, absorptance and the rate of residual moisture are measured by non-destructive experiments. Compressive strength of the traditional bricks is estimated by using the ultrasonic wave velocity and the absorptance. Based on the experimental results, the predicted compressive strengths using the ultrasonic wave velocity are unsuitable for the traditional bricks due to the rough surface and thickness variation of the specimens. The strengths using the absorptance are more suitable than those using the velocity because the predicted average strengths (28.69 MPa ~ 33.19 MPa) are close to building materials like normal strength concrete. In addition, the methods using the absorptance are not influenced by surface and thickness conditions of the specimens. The average thermal conductivities of the bricks measured by using Mathis TCi are close to those of soils (1.58 W/mK). The absorptance and the rate of residual moisture of the bricks are 1.6 % ~ 15 %, 0 % ~ 0.7 %, respectively.
Keywords
The Royal Tomb of King Muryeong; Traditional Brick; Compressive Strength; Thermal Conductivity; Absorptance;
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