Refractory Mortar / Cement which is a cement that is different from other types of cement in general. Such as mortar which is a building material that is widely used in the construction sector, cement-based which is used as an adhesive to make building structures sturdy. Mortar is a type of cement that is different from other cements, mortar itself is a fire-resistant cement that is quite strong in terms of filler and has been developed into various forms such as paving blocks and concrete buis.