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Henan anbo refractory material co., LTD
Tel:86-0371-64111501
Contact person:manager xu
phone:86-13592608515
address:Gongyi City,HenanProvince,China
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The strength of the refractory concrete

Refractory products of general rule applies to refractory concrete strength in this case, with normal temperature compressive strength and elastic modulus of approximate compared the deformation properties of refractory products, in terms of structure, the deformation of the refractory concrete is greater.

When the temperature rise high to over 400 ~ 500 x and 500 x, the strength of the concrete under the drop. In stress (0.2 million mpa > and temperature from 1100 x to 1350 c, when the six small, clay concrete creep variable increases from 0.6% to 0.6%, and the temperature is fixed for 13 s0x: and load increased from 0120000 mpa to 0120000 mpa lasted six hours, creep variable increases from 3.14% to 29, 0 %.

 

In 1550 and pressure of 0.2 million mpa and heat preservation, after 6 hours of siliceous concrete form of (K5 ~ 1.1%, lower than clay concrete. When heated to 1000 t for the first time, clay concrete expansion rate of 0, 4 %, while heating continue to UOOt contraction (about 1.0%). Then again and again when heated to 14001, the expansion rate of concrete strength 0.4 ~ 0.6%; when heated to 1500 t, siliceous concrete expansion rate of 4%, which related to the transformation of the polycrystalline silicon dioxide.

 

Stating the dynamics of heating and cooling in mass concrete elastic desert value of the change of the situation as shown in the circle of 22. When heated, within the scope of the 50 ~ 500 especially, show the decrease of concrete elastic modulus value, while the elastic modulus value until after the 1000 c increases, continue to raise the temperature when the elastic modulus value will shrink again. Cooling, the dynamic elastic modulus change in the opposite order, but in the same degrees TongJun its elastic modulus is larger than when heated.

 

In equivalent to concrete temperature range of heating and cooling, modulus of elasticity for sex change, can 拫 according to occur between crystal phase and glass phase structure change and stress, and the temperature of the liquid phase began to appear and condensing temperature. Such, in some degree, the attached fire deer coagulation soil dynamic modulus of elasticity for sensitive factor structure. When a shame Refractory products, do not belong to the structure is sensitive to performance.

Copyright:Henan anbo refractory material co., LTD   Tel:86-0371-64111501   Contact person: Manager Xu   phone:13592608515    address:Gongyi City,HenanProvince,China
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