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International Concrete Abstracts Portal

Showing 1-5 of 11 Abstracts search results

Document: 

SP74-10

Date: 

August 1, 1982

Author(s):

I. Leon Glassgold

Publication:

Symposium Papers

Volume:

74

Abstract:

The introduction describes the types of materials used in refractory linings, their constituent ingredients and general properties. A brief history is presented with the problems and procedures attendant to the installation and use of various refractory materials. This is followed by an analysis of failure mechanisms with an overview of repair methods, including a description of available hot and cold techniques for the various repair alternatives. The need for careful surface preparation is emphasized, while anchoring and bonding devices are described. Choosing the appropriate repair material is also highlighted. Miscellaneous details covering joints, curing, drying and heatup and their importance in achieving a successful repair are discussed. A detailed description of proper repair procedures, including shotcreting, casting and guncasting, among others, is presented with particular emphasis being placed on the methods available for both plastic and castable requirements. Qua1ity Contro1 of the entire repair procedure and the methods of testing in use at present are assessed.

DOI:

10.14359/17463


Document: 

SP74

Date: 

August 1, 1982

Author(s):

Editor: David R. Lankard / Sponsored by: ACI Committee 547

Publication:

Symposium Papers

Volume:

74

Abstract:

Proceedings of the second ACI sponsored Refractory Concrete Symposium. Ten papers are presented. Topics include recent advances in refractory concrete technology; problems and solutions in using these materials as liners in coal gasification equipment, aluminum melting and holding, refining and petrochemical operations, and steelmaking; nondestructive testing and evaluation; and repair techniques. Note: The individual papers are also available as .pdf downloads.. Please click on the following link to view the papers available, or call 248.848.3800 to order. SP74

DOI:

10.14359/14126


Document: 

SP74-09

Date: 

August 1, 1982

Author(s):

Robert E. Fisher

Publication:

Symposium Papers

Volume:

74

Abstract:

Early failures of monolithics are always a disheartening experience to the supplier, but they often are useful learning experiences as well. A number of field problems are described. These problems were solved by such adjustments as changes in material selection, improvements in existing materials and/or the development of new materials, changes in design, improvements in installation technique and modifications to the bake out procedure.

DOI:

10.14359/6398


Document: 

SP74-08

Date: 

August 1, 1982

Author(s):

M.S. Crowley

Publication:

Symposium Papers

Volume:

74

Abstract:

Refining and petrochemical operations, such as fluid catalytic cracking units, naphtha reformers, incinerators, and furnaces subject refractory linings to a variety of aggressive actions, such as erosion, spalling, slagging, and chemical attack. A number of different types of monolithic refractory material are used to resist these actions. The types of refractory failure commonly experienced in refineries and petrochemical plants are discussed and methods of repairing or replacing the deteriorated areas are outlined. The effect of placement techniques, curing conditions, and start up procedures on the serviceability of repaired sections is also discussed.

DOI:

10.14359/6397


Document: 

SP74-07

Date: 

August 1, 1982

Author(s):

Richard G. LaBar

Publication:

Symposium Papers

Volume:

74

Abstract:

The purpose of this paper is to provide a description of performance criteria for refractory concretes, or castables, in the melting, holding, and transfer of aluminum alloys in ingot plants. Refractory concretes in these applications have three mechanisms of failure which are attributed to anomalies in refractory installation, thermomechanical stability and chemical stability. Chemical stability indicates the refractory concrete's resistance to corrosive effects of chlorine gas, molten metal, and alkali vapors.

DOI:

10.14359/6396


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