Reasons for Concrete Cracks and how to prevent them
Concrete slabs usually exhibit hair cracks after 5 to 6 hours or the next day after being cast. It is not advisable to build or construct a structure or building with concrete cracks.
Water and oxygen can pass through cracks in the steel reinforcement, which will lead to corrosion as moisture and oxygen react with the steel reinforcement.
Corrosion may cause steel to expand by 2 to 6.5 times its original volume, endangering the structure and even causing it to collapse. So, the major goal of this essay is to examine potential causes of concrete cracking as well as preventative measures.
Possible reasons for Concrete Cracks
Here are the possible reasons for Concrete Cracks:-
Influence in Temperature
Temperature in the environment
It is the most important and significant cause of concrete fractures. During concreting, the ambient temperature is very important.
The concrete's water content will evaporate at very high temperatures, causing the concrete's plastic to shrink. On the surface of the concrete, cracks will appear as a result of plastic shrinking.
Temperature in the concrete
Ideally, concrete should have a temperature range of 26.7?C to 35?C. So, it is recommended to add ice to the water if the temperature exceeds 35?C.
Water to Cement ratio
That is yet another significant factor in concrete fractures. According to the design mix of concrete grade, the water-cement ratio should be used. More water exposure will cause concrete to begin bleeding, which will result in surface fractures.
As tight concrete makes it harder for the laborers to work, they typically advise adding more water during the concrete casting process.