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Aluminum silicate refractory mortar includes clay based refractory mortar, mullite based refractory mortar, high alumina based refractory mortar and so on. accordingly, the matrix materials of aluminum silicate refractory mortars are clay clinker fines, sintered or fused mullite fines, high alumina bauxite clinker fines, sintered or fused corundum fines. During making aluminum silicate mortar, some quantity of soft clay, bonder and additives are added into the matrix. The function of soft clay is to improve the workability of the mortar, such as spread ability and adhesion ability, etc. Silica micro powder can be used to replace soft clay to enhance workability
Binding agent is required to improve the strength of aluminum silicate refractory mortar. There are two types of binders: 1) silicate series, i.e. water glass with different modulus of (SiO2/Na2O). 2) Phosphate series, such as acidic aluminum phosphate and polyphosphate, etc. The quantity of binders is decided by applications. Generally speaking, the more the binder, the higher the sintered binding strength. But at high temperature, the case is the opposite, because binders appear liquid phase at high temperature.
Application of Refractory Mortar:
Refractory mortar is easy to use and readily available for various kinds of applications such as coating and patching of furnace safety linings, setting pre-cast shapes, bonding refractory bricks and high temperature insulation bricks. High alumina refractory mortars have different application based on their refractoriness.
Item |
Clay mortar |
High alumina mortar |
Mullite mortar |
Corundum mortar |
| RefractorinessºC≥ | 1750 | 1790 | 1790 | 1850 |
| Rupture strength (Sintered)MPa≥ |
5.9 (1200ºC) |
5.9 (1400ºC) |
5.9 (1500ºC) |
5.9 (1500ºC) |
| cementation time/min | 1-2 | 1-2 | 1-2 | 1-2 |
| Granularity≥0.5mm % | ≤1 | ≤1 | ≤1 | ≤1 |
| Al203 %≥ | 45 | 70 | 70 | 90 |
| rupture under load temperature ºC≥ | 1200 | 1300 | 1500 | 1700 |
Our company is equipped with professional testing equipment to conduct technical testing in multiple processes from raw materials to finished products. We continuously strive to exceed our customers' expectations and always provide reliable products and excellent service.
Packaging : 25kg/bag, two layers kraft bag with water proof, and with ton bag outside or each ton packed on a fumigation pallet according to customers' request.
Henan Yutai High Temperature New Material Technology Co., Ltd.
The company is a high-tech enterprise integrating scientific research, production, sales and service. It is committed to providing first-class solutions and services to the global high-temperature industry, including steel, aluminum, electricity, glass, kilns, non-ferrous metals, cement industries, etc.
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The company has won widespread praise in domestic and foreign markets for its excellent product quality and after-sales service.
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