“high quality aggregate”的概念、定义、翻译、参考文献-科学参考

单词	high quality aggregate
释义	high quality aggregate Encyclopedia 工学骨料释 high quality aggregate高品质骨料颗粒级配、颗粒形状、坚固性、吸水率等主要技术指标均优于已有国家标准中的Ⅰ类砂、石要求的骨料。以适应高性能混凝土和易性以及大跨度、高耸结构和超高层建筑物泵送混凝土拌合物可泵性能的高要求，并能保证控制较低的浆骨比以稳定混凝土体积，降低开裂敏感性，满足耐久性要求。
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