变态混凝土在碾压混凝土坝施工中的应用

变态混凝土的出现至今不到10年,但发展迅速,其施工工艺也日臻完善.光照大坝在施工过程中广泛地运用了变态混凝土,变态混凝土在该工程中的使用范围由模板、电梯井、埋设件等周边扩大到了岸坡和止水片的周边.为了保证工程质量达到设计要求,采取如下措施:配合比先在室内试验后才在现场试用,务必使其物理力学性能满足使用部位混凝土的设计要求;设立集中制浆站确保灰浆质量;施工工艺操作规范化;用强力振捣使之密实等.这些措施的采用取得了满意的效果.

The Applications of Distorted Concrete to the RCCD (Roller Compacted Concrete Dam)

Distorted Concrete has enjoyed burgeoning development with better craftsmanship since its invention 10 years a-go. Distorted Concrete is widely used in the construction of Guangzhao dam. Its applications has expanded from perimeter of molds, elevator hoistway and embedded parts to bank slope and waterstop. Mixing proportion is tested in laboratory before its practical applications to meet quality standards and to ensure its mechanical property in keeping with the design standards. Mixing centers is established to ensure grout quality. Construction craftsmanship is standardized. Forceful vibration and beat-ing are used to make it solid. All these measures have produced good results.