air content of fresh concrete is normally measured, by the use of a special air meter, to assess whether the concrete contains the required amount of air. This would be measured when air’s entrapment or entrainment is required by the concrete...
The apparatus consists of a pressure tight flanged cylindrical measuring bowl of specified volume in accordance with size of aggregate to be tested. The bowl is fitted with a removable flanged conical cover assembly with the help of a airtight...
Air Entrainment Meters (AIM 340, AIM 341, AIM 342) Ref Std :IS 1199/1079, BS 1881, EN 12350-7 Entrainment of a small amount of air in the cement/concrete has been found to improve considerably the durability of concrete. The recommended limits...
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