Utilizing coral waste and metakaolin to produce eco-friendly marine mortar: Hydration, mechanical properties and durability
作者： Yunyao Wang , Zhonghe Shui , Xu Gao , Yun Huang , Rui Yu
DOI: 10.1016/J.JCLEPRO.2019.02.147
关键词:
摘要: Abstract The shortage of construction materials for concrete production on islands far from mainland is a long-standing problem. Coral waste by-product during some marine engineering works and it has the potential to be recycled as ingredients. present work reports hydration, mechanical durability-related properties well ecological impacts mortars based coral metakaolin (MK). Results show that mortar presents obviously lower compressive strength chloride resistance than conventional river sand mortar. These defects can overcome by MK addition due formation carboaluminate, pozzolanic reaction increased water-retention paste, which prevents water being absorbed (CS) ensure better uniformity matrix. powder (CP) accelerates cement hydration but reduces cumulative heat release dilution effect. binary use CP results in suspected peak corresponding carboaluminate at 26 h. Without sacrifice durability, incorporating 10 wt% more 35% non-renewable energy consumption 40% carbon emission compared
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