When dealing with the Sabo type of dam, various methods have been implemented to reduce erosion by abrasive action from flowing water on the floor of the top part of the dam. Experiments have proven that use of granolithic concrete is cost efficient and effectively reduces erosion by abrasion of the top layer. However several problems still exist that prevent its' applicability in the field.
From experience, methods have been developed for designing and constructing the top part of the dam to prevent abrasion but there are many restrictions that still exist. In this sense there is a need to approach the whole problem from a performance related aspect.
In this thesis, performance design using granolithic concrete as the main construction material for the protection of the top of the Sabo dam, considers the workability of the concrete, the abrasive properties and the possibility of reducing cracks from arising.
The results obtained show that through the improvement of the mix ratios of the granolithic concrete, the difficulties sustained in the workability are reduced while the resistance to abrasive action is greatly improved. Actual use of this concrete and a combination of various experiments have shown that alterations in the mixture ratio effectively improve the performance of the concrete used for the Sabo dam floor.