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http://dx.doi.org/10.5345/JKIBC.2017.17.2.141

Physical and Environmental Properties According to Borax Addition Ratios of Inorganic Filling Adhesive using Magnesia Silicate Phosphate  

Kim, Tae-Hyun (Department of Architectural Engineering, Hanbat National University)
Shin, Jin-Hyun (Department of Architectural Engineering, Hanbat National University)
Lee, Sang-So (Department of Architectural Engineering, Hanbat National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.17, no.2, 2017 , pp. 141-147 More about this Journal
Abstract
The purpose of this study is to develop an inorganic filling adhesive using MKP and borax based on Dead-burn magnesia and fly ash. First, basic experiments was conducted to derive the proper addition rate of MKP. And this experiment was carried out according to addition ratio of borax. The test items are measured for pot life, flexural strength, compressive strength, adhesive strength, tensile strength, ratio of temperature change, ratio of hardening shrinkage, radon gas and formaldehyde emission. As a result, the proper addition rate of phosphate was 35%. The pot time is about 10minutes, 15minutes and 25minutes according to addition rate of borax. The flexural strength and compressive strength were obtained at 12hours for minimum flexural strength of 8.0MPa and minimum compressive strength of 31.0MPa. The tensile strength was the least 4.1MPa, and the ratio of hardening shrinkage was maximum 2.4% and ratio of heat change was maximum - 0.3%, which satisfied all of the quality standards of 'KS F 4923' (epoxy resin for repairing concrete structures). Both Radon gas and formaldehyde emission was not detected.
Keywords
dead-burn magnesia; phosphate; borax; adhesive strength; formaldehyde;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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