But I remembered the ground had done it successfully. Before we talk about strengthening the weight For the 500Kg overload, but it is not related to a problem with the cement floor crack.?. I consulted with. A contractor in the Thai he told me that, causes design load-carrying not enough The design should be designed how to prevent. Cracking. of cement. Steel supplementation it should be have placed in the drawing in first. Please concluded who was responsible for this problem.?