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碾压混凝土(RCC)作为一种比较新的筑坝材料,需要有新的坝型。正是技术进步导致采用新的结构型式和新材料而不是相反。顾名思义,碾压混凝土是一种混凝土,因为它使用了水泥,但是它的浇筑方式却像一般的填筑坝一样(碾压密实)。正是这种碾压密实方式构成了这种新技术。最初工程师们采用一种填筑料,它具有很强的粘着力和抵抗侵蚀的能力,可称之为干硬填筑料而非碾压混凝土。
As a relatively new dam material, RCC needs a new type of dam. It is the technological advance that has led to the adoption of new structural forms and materials instead of the opposite. As its name implies, RCC is a type of concrete because it uses cement, but its pouring method is the same as a normal filling dam (compact compaction). It is this compact compaction approach that constitutes this new technology. Initially engineers used a fill material that had strong adhesion and resistance to erosion and could be called dry hardfill instead of roller compacted concrete.