Flexural strength in fiber-containing concrete

Details Flexural strength in fiber-containing concrete Flexural strength in fiber-containing concrete

1972-06-07

1976-10-19

Gantz, Delbert E.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 702

Patent

active

039868850

ABSTRACT:
A method of making a two-phase material comprising a mix of concrete and fibers of a material having a modulus of elasticity of at least about 20 million psi substantially uniformly distributed therein with an average spacing between fibers of up to about 0.3 inch. The flexural strengths are measured for a plurality of substantially different average bond areas of the fibers per unit area in planes normal to tensile stress in test specimens of the two-phase material, and the fibers are provided and distributed in such quantity in the bulk mix that the average bond area of the fibers intersecting planes normal to the stress at known regions of highest tensile stress is sufficient to provide at least a preselected flexural strength in such regions.

REFERENCES:
patent: 3429094 (1969-02-01), Romualdi
patent: 3650785 (1972-03-01), Ball et al.

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