dnpavan123 1 Question 0 Answers 0 Best Answers 1 Point View Profile dnpavan123 In: Concrete Queries Main Reasons for Cracks on walls? why does the cracks occur in walls ? why does the cracks occur diagonally in walls and whats the reason? Share Facebook 2 Answers Voted Recent Charles 0 Questions 1 ✍ Answer 0 Best Answers 24 Points View Profile Charles Begginer Added an answer on February 13, 2019 at 10:41 am Crack may occur on wall due to improper preparation of house bench or it can be result of differencial settlement. When the base of building is designed for sandy soil and then one part of structure attach to silty or clay soil. It may present crack on wall. 1 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Admin Hyderabad, India 25 Questions 76 Answers 13 Best Answers 641 Points View Profile Best Answer Admin Enlightened Added an answer on March 1, 2020 at 4:15 pm 1. First among them is the use of more water in the mix: To increase the setting time workers usually add more water to the mix which reduces the strength of the concrete. Eventually, it may lead to forming cracks on the concrete. 2. Plastic Shrinkage: It’s a one of the major cause for developing cracks on the concrete. In this Water evaporates quickly from the top of the surface. It causes the top of the slab to dry more quickly than the bottom, and they pull each apart. This is more likely to happen when it is hot, windy or there is low humidity. A provision in curing is the only solution for this kind of failure. 3. Cracks formed due to settlements: This type occurs when the ground under concrete settles. This is caused when the soil is poorly compacted. And if the ground has less soil bearing capacity. 4. Rapid drying concrete: It is the main reason. In the current scenario, we are starting a project with a proper planning but not including the calamities which occurs while doing construction and same submitting the last date of completion of a project to the client. If a project takes more than stipulated time builder has to pay the client in return. Take an example of excavation while doing excavation there is a chance of water coming from earth then we have to perform dewatering. Which is not included in the project planning. To balance the time wasted for dewatering builder minimizes time in curing and rapid drying of concrete. In turn, this may lead to forming cracks on concrete in future. and this type of concrete is repaired with some modern techniques but cost incur is very high. These are the main reasons for the cause of cracks in concrete, Apart from above, there are so many reasons for forming cracks in concrete. 0 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Sorry this question is closed.