Upload
muhammadiqbalmughal
View
13
Download
0
Embed Size (px)
DESCRIPTION
Mix Design for Lining Concrete of Concrete-face Rock-Fill Dams
Citation preview
A Mix Design for Lining Concrete of Concrete-face Rock-Fill DamsA concrete face rock-fill damAs defined by Wikipedia, a concrete-face rock-fill dam is a rock-fill dam with concrete slabs on its upstream face. This design offers the concrete slab as an impervious wall to prevent leakage and also a structure without concern for uplift pressure. In addition, theconcrete-face rock-fill dam design is flexible for topography, faster to construct and less costly than earth-fill dams.A typical mix design for lining concrete of rock-filled dams.ComponentsUnitQuantity
Cement OPCkg300
Puzzolankg45
Waterliter190
Sandliter835
Aggregate 510kg160
Aggregate 1020kg372
Aggregate 2040kg532
Plasticizerliter1.73
Air Entrained Agentliter0.1
Concrete Requirements: Compressive Strength: 25 MP (250 KG/cm2) Waterproofing Ability (stable water column): 8 bars Air content: 4-5% Slump: 8 + 2 cmThe proportion above is for indication. Depend of the project specifications and local materials, the mix design may change. Trials at lab shall be needed.