Test Methods for Very Low Slump Concrete

Very low slump concretes are typically too stiff to be measured with test methods that consider the ability of concrete to flow. Instead, tests for very low slump concretes generally attempt to simulate the actual placement conditions for low slump concretes and measure more relevant properties like compactability. The proctor test and the Kango hammer test utilize vibration to compact samples whereas the intensive compaction test uses compression and shear forces. These tests are generally simple to perform, although none can be used as a simple field quality control device.

 

 

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