laboratory Reviews the impact of the above addlubricant, Micro Silice and air entraining on thedurability of the irrigation channels lining‘s concrete

Concrete durability against types of chemical failures like sulfated or acidic water effects and also againstrepeated glaciated and melting in irrigation channels lining in the cold regions according to the thicknessof the low-and non-armed being that of a special importance. Create the effect of leaving--changes thecapacity of the ice and melting and penetration of water into the soil under the concrete and progressivedegradation, especially in collapsible soils makes the wasting of water channels. In most of the channelsair entraining additivs is used to raise the durability of concrete in front of glacial. This matter in reducecaused unit weight to reduce the mechanical resistance of concrete due.in this study 4 type of concrete mix design with confirmed mixing ratios of project in coastal project inSabalan dam was done.the first of that was without of any additives materials as a base concrete. secondtype was concrete with bobble maker additives. third type was concrete with supper plasticizer additivesand the fourth type was concrete with supper plasticizer and micosilica additives and the fourth mixdesign 3type of standard cubic samples for mechanical strength and 2type of standard cubic samples formelting and ice test with ASTM-C666 standard was sampled

کلیدواژه ها:

lining ، irrigation channel ، glacial ، durability ، permeability