Refractory brick masonry in the construction of everyone knows there will be reserved expansion joints, then refractory castables should also have expansion joints? How to leave the expansion joint of refractory castables? What kind of castables to leave what size expansion joints? Do you know about this? If there is no expansion joint, what will be the impact on the later use?
When refractory bricks or castables are used in the lining of industrial kilns, due to the influence of temperature change and thermal stress formed by temperature gradient, it will lead to the deformation and expansion of the lining structure, so it is necessary to leave expansion joints in the construction of refractory bricks and castables.
Refractory bricks and castables are made of different raw materials, and the expansion coefficients after being heated are not the same. The size of the expansion in masonry is mainly based on the nature of the refractory bricks or castables used and the temperatures they are subjected to.
