Lightweight firebrick generally refers to foam bricks, and normal indoor partitions use such bricks, which will not increase the load on the floor, and the sound insulation effect is good! The strength products are made of high quality plate-like corundum and mullite as aggregates. With the compound of sillimanite as the matrix, another special additive and a few rare earth oxides are mixed and kneaded by high-pressure molding and high-temperature firing. Lightweight heat-insulating refractory bricks generally produce clay-based, high-alumina high-strength floated bead bricks, low-iron mullite, high-alumina polylight heat-insulating firebricks, and diatomaceous earth insulation firebricks. Lightweight firebrick function The bulk density of commonly used clay bricks is between 0.75-1.2g/cm3, and the actual top weight is 1.0. The advantages of lightweight firebrick: 1. Economicality: It is possible to reduce the cost of foundations, reduce the cross-section of the structure, and save the use of reinforced concrete to significantly save the construction cost of construction items. The use of lightweight bricks in the design of solid clay bricks can be reduced by more than 5%. 2. Practicality: The use of lightweight bricks can increase the use of the area, together with aerated concrete heat insulation, insulation effect is good, in the hot summer, the indoor temperature is lower than the selection of solid clay brick 2-3 °C, the use of air conditioning, down Electricity consumption. 3. Construction: Lightweight bricks have outstanding machinability. The construction is simple and convenient. Because of its large size and light weight, it can reduce labor intensity, improve construction efficiency, and shorten the construction period. Lightweight firebrick ten functions: 1. Light-weight: Light-weight bricks have a dry capacity of only 500-700kg/m*3, which is 1/4 of general concrete, 1/3 of clay, and 1/2 of hollow blocks, because their bulk density is lower than that of water. Commonly known as aerated concrete floating on the surface of the water, the use of this product in construction can reduce the weight of the building and significantly reduce the cost of constructing the building.