Strength Properties of Cementless Permeable Block Based on Blast-Furnace Slag with Alkali Stimulant Additional Ratio

알칼리 자극제 첨가율에 따른 고로슬래그 기반 무시멘트 투수블록의 강도 특성

Recently, the flooding of rivers caused by rainy season and heavy rains in Korea causes economic and environmental problems such as flood damage and urban flooding. Therefore, in order to solve these problems, local governments use landscaping methods and drainage facilities to prevent them, but they are not perfect solutions. Domestic awareness also lacks awareness to worry about flooding only during rainy seasons and heavy rains, and to worry about or prevent flooding in the region. In order to solve this problem, we recognize the importance of permeable blocks nationwide and replace or install permeable paving materials on most sidewalks. However, since existing permeable blocks used cement as the main material, calcium carbonate is produced when reacted with water. Efflorescence occurs, and the resulting calcium carbonate blocks the pores of the permeation block, causing a decrease in permeability.