Tensile and bending tests on very high performance concrete

L. Biolzi; S. Cattaneo; J. F. Labuz

Tensile and bending tests on very high performance concrete

L. Biolzi, S. Cattaneo, J. F. Labuz

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The strength and fracture behavior of very high performance concretes (compressive strength about 150 l'vfPa) were studied using interferometric measurements. At peak load, the development of the damage zone in terms of size and shape was observed for geometrically similar specimens of different sizes. The cement-based materials had an aggregate/binder ratio of 1.5, a microsilica/binder ratio of 0.1 and a water binder ratio of 0.22. Beams made without and with 1-2% by volume steel reinforcing microfibers were considered. It was shown that, when fibers were introduced in the brittle matrix, their influence on the control of crack bridging generated a reduction of the size effect on strength and structural brittleness.

Original language	English (US)
Title of host publication	Fracture Mechanics for Concrete Materials
Subtitle of host publication	Testing and Applications
Editors	C. Vipulanandan, W.H. Gerstle
Publisher	American Concrete Institute
Pages	229-242
Number of pages	14
ISBN (Electronic)	9780870310393
State	Published - Jul 1 2001
Externally published	Yes
Event	Fracture Mechanics for Concrete Materials: Testing and Applications at the ACI 2000 Spring Annual Convention - San Diego, United States Duration: Mar 27 2000 → …

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-201
ISSN (Print)	0193-2527

Conference

Conference	Fracture Mechanics for Concrete Materials: Testing and Applications at the ACI 2000 Spring Annual Convention
Country/Territory	United States
City	San Diego
Period	3/27/00 → …

Bibliographical note

Funding Information:
Partial support was provided by the National Science Foundation Grant Number CMS-0070062.

Publisher Copyright:
© 2001 American Concrete Institute. All rights reserved.

Keywords

Direct tensile tests
Fiber-reinforced concrete
Interferometric measurements
Modulus of rupture
Nominal strength
Size effect

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Tensile and bending tests on very high performance concrete. / Biolzi, L.; Cattaneo, S.; Labuz, J. F.
Fracture Mechanics for Concrete Materials: Testing and Applications. ed. / C. Vipulanandan; W.H. Gerstle. American Concrete Institute, 2001. p. 229-242 (American Concrete Institute, ACI Special Publication; Vol. SP-201).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Biolzi, L, Cattaneo, S & Labuz, JF 2001, Tensile and bending tests on very high performance concrete. in C Vipulanandan & WH Gerstle (eds), Fracture Mechanics for Concrete Materials: Testing and Applications. American Concrete Institute, ACI Special Publication, vol. SP-201, American Concrete Institute, pp. 229-242, Fracture Mechanics for Concrete Materials: Testing and Applications at the ACI 2000 Spring Annual Convention, San Diego, United States, 3/27/00.

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N2 - The strength and fracture behavior of very high performance concretes (compressive strength about 150 l'vfPa) were studied using interferometric measurements. At peak load, the development of the damage zone in terms of size and shape was observed for geometrically similar specimens of different sizes. The cement-based materials had an aggregate/binder ratio of 1.5, a microsilica/binder ratio of 0.1 and a water binder ratio of 0.22. Beams made without and with 1-2% by volume steel reinforcing microfibers were considered. It was shown that, when fibers were introduced in the brittle matrix, their influence on the control of crack bridging generated a reduction of the size effect on strength and structural brittleness.

AB - The strength and fracture behavior of very high performance concretes (compressive strength about 150 l'vfPa) were studied using interferometric measurements. At peak load, the development of the damage zone in terms of size and shape was observed for geometrically similar specimens of different sizes. The cement-based materials had an aggregate/binder ratio of 1.5, a microsilica/binder ratio of 0.1 and a water binder ratio of 0.22. Beams made without and with 1-2% by volume steel reinforcing microfibers were considered. It was shown that, when fibers were introduced in the brittle matrix, their influence on the control of crack bridging generated a reduction of the size effect on strength and structural brittleness.

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KW - Fiber-reinforced concrete

KW - Interferometric measurements

KW - Modulus of rupture

KW - Nominal strength

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ER -

Tensile and bending tests on very high performance concrete

Abstract

Publication series

Conference

Bibliographical note

Keywords

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