General rule also applies to the strength of refractory products in refractory concrete in this case, the compressive strength and modulus of elasticity similar to normal temperature sintering deformation properties of refractory products compared on structural characteristics, the deformation of refractory concrete greater amount.
Gao when the temperature rose to 400 ~ 500X and 1000X more concrete strength is lowered. In certain stress (0.2 MPa> and the temperature rose from 1100X 1350C lasted six hours, the amount of clay, concrete creep increases from 0.6% to 1.0%, while the temperature is fixed at 13S0X:. And load from 0.12 to 0.35 MPa MPa lasted six hours, creep increases from 3.14% to 29,0%.
In particular, 1550 and a pressure of 0.2 MPa and incubated for 6 hours, the amount of deformation of the siliceous concrete (K5 ~ 1.1%, lower than the clay concrete when first heated to 1000t, the expansion of clay concrete is 0, 4% shrinkage occurs when heating is continued to UOOt (approximately 1.0%) and then heated again to 14 001, the expansion force of the concrete from 0.4 to 0.6%; when heated to 1500T, siliceous concrete expansion is 4% This is related to a silica polymorph conversion.
Changes in the dynamics of elasticity values ??Gui desert home heating and cooling when the quality of the concrete ring 22 as shown. Heating, in particular in the range of 50 to 500, the elastic modulus of the concrete is significantly reduced, and 1000C until after the elastic modulus is increased, and then continue to raise the temperature of the elastic modulus is reduced again. Upon cooling, the change in kinetic modulus of elasticity in the reverse order, but the modulus of elasticity for a child than jun when heated under the same degree of mixing more.
Concrete in the equivalent range of the heating and cooling temperature, the elastic modulus variation to be resistance, and structural changes may be based on the geographical stress, temperature and the liquid began to appear between the condensing temperature and the crystal phase and the glass phase to determine. Thus, to some extent, with the fire of his deer concrete structural dynamics elastic modulus sensitive factor. When in disgrace as refractory products, the sensitivity can not belong to the structure.