In fibre reinforced concrete, if the fibres are not dispersed properly, then the resulting problem is called as -
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A.
Spalling
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B.
Segregation
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C.
Congestion
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D.
Balling
Correct Answer:
D. Balling
Explanation:
In fiber-reinforced concrete, the phenomenon where fibers fail to disperse uniformly and instead tangle into clusters or lumps is known as balling. This typically occurs during the mixing process due to factors such as adding fibers too quickly, using an excessively high fiber volume, or having a mix with an inappropriate length-to-diameter (aspect) ratio. Proper distribution is essential because these clumps create localized weak spots, reduce the workability of the fresh mix, and prevent the fibers from effectively bridging cracks and enhancing the material's overall structural integrity.
Correct Option: D (Balling)
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