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International Concrete Abstracts Portal

Showing 1-5 of 13 Abstracts search results

Document: 

SP61-04

Date: 

August 1, 1979

Author(s):

Ricardo P. Pama, Vorachai Intaragumhaeng, and Bishwendu K. Paul

Publication:

Symposium Papers

Volume:

61

Abstract:

A theoretical model is presented to predict the width and spacing of cracks in ferrocement elements in tension. A parametric study was also conducted to study the influence of parameters such as bond stress, volume of reinforcement, size of reinforcement, properties of mortar and reinforcement on the width and spacing of cracks. The theoretical results indicate that the spacing and width of cracks are significantly affected by bond stress, diameter and volume of reinforcement. An experimental investigation was conducted on ferrocement specimens in tension with varying steel content and the results obtained are shown to be in agreement with theoretically predicted values. Practical guidelines are suggested for the control of tensile cracks in ferrocement elements.

DOI:

10.14359/6635


Document: 

SP61-12

Date: 

August 1, 1979

Author(s):

Gajanan M. Sabnis, Gordon B. Baston, Antoine E. Naaman, and Ricardo P. Pama

Publication:

Symposium Papers

Volume:

61

Abstract:

The references listed in the following pages cover a good selection of research papers and applications of ferrocement. Being the first volume of its kind, a wide selection of papers is made to help the interested engineer identify his needs. . .Many references were provided from the bibliograpgy of International Ferrocement Information Center (IFIC), Bangkok, and are gratefully acknowledged.

DOI:

10.14359/17381


Document: 

SP61

Date: 

August 1, 1979

Author(s):

Editor: Gajanan M. Sabnis

Publication:

Symposium Papers

Volume:

61

Abstract:

SP61 The eleven papers include an historical overview of ferrocement, structural properties useful to engineers, laboratory tests, research on properties, and applications. A bibliography is included.

DOI:

10.14359/14113


Document: 

SP61-02

Date: 

August 1, 1979

Author(s):

Gordon B. Batson, Gajanan M. Sabnis, and Antoine E. Naaman

Publication:

Symposium Papers

Volume:

61

Abstract:

This is a summary of the mechanical properties of ferrocement as a structural material based on the state-of-the-art report being prepared by ACI Committee 549, Ferrocement. The mechanics of ferrocement is very complex because of the almost infinite variety of size, geometry, fabrication methods, orientation, yield and ultmate stress of the steel wire mesh reinforcement available. The specific surface area of the wire mesh appears to correlate well with the first crack strength and the spacing and number of cracks. The tensile, flexural and compressive strengths depend on the orientation of the mesh, technique of fabricating the mesh and its ultimate strength. It appears that the conventional methods of analysis for reinforced concrete can be used to calculate the flexural strength of ferrocement. Ferrocement has superior impact properties, but its fatigue strength may limit the otherwise high allowable stresses to which it could be subjected. A design approach based on allowable crack width for service loads seems to be practical.

DOI:

10.14359/6633


Document: 

SP61-10

Date: 

August 1, 1979

Author(s):

P. Srinivasa Rao and M. S. Mathews

Publication:

Symposium Papers

Volume:

61

Abstract:

This paper reports about the development and testing of ferrocement corrugated sheets. The results obtained warrant the following deductions. The sheets can be cast with the minimum of equipment and supervision. While the strength of the ferrocement sheet tested is half that of asbestos sheets, the strength to cost ratio approaches the same value. Unlike asbestos sheets, ferrocement sheets exhibit very large deflections before failure. Special tools are required for cutting and drilling holes in ferrocement sheets.

DOI:

10.14359/6641


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