Refractory Concrete

refractory concrete

[ri′frak·trē ′kän‚krēt]
(materials)
Heat-resistant concrete made with high-alumina or calcium-aluminate cement and a refractory aggregate.

Refractory Concrete

 

concrete capable of retaining its physicomechanical properties within predetermined limits during prolonged exposure to high temperatures. Binders used in refractory concrete include portland cement; slag-portland cement; high-alumina, alumina, or periclase cement; water glass; and phosphate bonds. Finely divided additives are added to the binders in many cases. Crushed heat-resistant or refractory rocks, chips of fired heat-resistant products, and some other materials are used as fillers. According to the degree of fire resistance, refractory concrete is subdivided into highly refractory (fire resistance above 1770°C), refractory (1580°- 1770°C), and heat-resistant (below 1580°C) varieties. Refractory concrete is used in the construction of thermal units and the foundations of industrial furnaces and other structures subjected to prolonged heating.

REFERENCES

Nekrasov, K. D., and A. P. Tarasova. Zharostoikii be ton na portlandtsemente. Moscow, 1969.
Instruktsiia po tekhnologii prigotovleniia i primeneniiu zharostoikikh betonov: SN 156–67. Moscow, 1967.

K. D. NEKRASOV

refractory concrete

Concrete having refractory properties; suitable for use at high temperature; usually made with calcium aluminate cement and refractory aggregate.
References in periodicals archive ?
In March 1981, Wahl Refractory Solutions patented its innovative Slurry Infiltrated Castable Technology (SIFCA), a highly reinforced refractory concrete for the production of precast shapes.
Whirler speed will be very high for mixing fine elements with low water content for dispersing clusters, as in face mixes or those with fine or ultra fine aggregate only (ultra high performance concrete), or refractory concrete.
The influence of variuos plastizing elements on hydration and physical-mechanical properties of refractory concrete with porous fillers, in Proceedings of the Conference on Refractory Castables, 2005, Prague, 86-95.
A review of the possible applications of nanotechnology in refractory concrete, Journal of Civil Engineering and Management 16(4): 595-602.
Refractory concrete is produced by the mixture of cement (binder), aggregates, additives and water.
In the present paper are studied the physico--mechanical properties of refractory concrete samples prepared from bauxite and grog to which was added sodium citrate as water reducing agent.
thesis, An investigation into the potential creative applications of refractory Concrete, GB, The Lanchashire University, Department of Design.
Part V of the contract (Concrete) - 270 tons a) sredniocementowy refractory concrete.
Tenders are invited for Refractory Concrete and Thermal Insulation Materials
It will be tested shrinkage materials at different temperatures and monitoring the maximum speed of the different refractory concrete.
Another monolithic alternative, castable refractory concretes, were mixed on-site, poured into mold forms and allowed to cure before heating.
The candidate must be able to implement refractory concretes and spare shapes.

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