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A paper joint in concrete is a type of control joint that is created by placing a strip of paper or other compressible material in the concrete before it hardens. This helps to control cracking caused by shrinkage and movement within the concrete slab. The paper joint allows the slab to crack along a predetermined line, reducing the chances of random cracking.

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Q: What is a paper joint in concrete?
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The difference between contraction joint and construction joint?

A construction joint in concrete jobs is a joint where a fully set and hard concrete joins a fresh concrete to make a joint. Normally, cracks would occur at this joint because concrete was not cast monolithic. A contraction joint is joint between two concrete edges so formed which allows minute movement between the two edges caused by heat or some other external forces. Usually, contraction joints are also referred to as expansion joints.


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A paper can contain both abstract and concrete elements. The abstract aspect refers to the overall topic, thesis, and conceptual framework of the paper, while the concrete aspect involves specific evidence, examples, and data used to support the arguments made in the paper. Both abstract and concrete components are important for a well-rounded and effective paper.


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