KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

Unit Weight and Compressive Strength of Cement Mortars Using Crushed Sand Under Sulfate Attacks

황산염 침해를 받는 부순모래 모르타르의 단위중량 및 압축강도 특성

Kim, Myung-Sik;Baek, Dong-Il
김명식;백동일

  • Published : 20070700

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Abstract

The aim of this study is to estimate characteristic of compressive strength and unit weight when cement mortars using crushed sand under sulfate attacks. Besides tests have been performed using river sand and crushed sand, respectively. The cement mortars were made with replacement ratios of silica fume and fly ash. The cement mortar were immersed in fresh water, 10% sodium sulfate solution, 10% magnesium sulfate solution, and seawater for 28days, 60days, 90days and 180days. This study, investigate change of compressive strength and unit weight of cement mortars about immersion time and replacement of mineral admixtures. Additionally SEM and EDX analysis was performed to identify the microstructure under sulfate solution. It was observed from the test results that the cement mortar using crushed sand was found to have a good resistance against sulfate compared with river sand.

Keywords

References

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