Approximately in 1970 roller compacted concrete was created and this method became prevailing among other ones for massive concerete placing. Since rammed concrete is so widely used nowadays, an independent document ACI 207.5R is the main information material for this topic. Traditional methods of mass concrete are still used in many large and small projects, especially where rammed concrete is not appropriate or hard to use.
These are objects such as arched dams, large walls and some foundation works, especially where reinforcement is required. Continuous development of chemical admixture allowed to build very long underwater objects where the concrete flows sideways to depths of up to 100 feet. Pressure concreting techniques have been developed for construction where load-bearing elements are made from pre-installed or prefabricated structures and then filled with underwater concrete. This way the dam sections and hydropower plant were constructed.