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ASTM Selected Technical Papers
Marine Corrosion in Tropical Environments
By
SW Dean
SW Dean
1
Air Products and Chemicals, Inc.
?
Allentown, PA Symposium co-chair and co-editor
Search for other works by this author on:
GH-D Delgadillo
GH-D Delgadillo
2
Universidad del Mayab
?
Merida, Mexico Symposium co-chair and co-editor
Search for other works by this author on:
JB Bushman
JB Bushman
3
Bushman & Associates
?
Medina, OH Symposium co-chair and co-editor
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ISBN-10:
0-8031-2873-8
ISBN:
978-0-8031-2873-6
No. of Pages:
320
Publisher:
ASTM International
Publication date:
2000

Concrete is a brittle material with a relatively low tensile strength compared to its compressive strength. Reinforcement with randomly distributed short fibers could improve the ductility and tensile strength of concrete and permits the stabilization of the crack system. These products could be used in marine applications, but several chemical reactions must be controlled to generate durable materials. Sulfates and chlorides presented in seawater are especially dangerous ions for the concrete and the reinforcing steel.

The main objective of this research was to determine the effects of a marine environment on the properties of fiber reinforced mortars. Different types of natural and synthetic fibers such as sisal (S), fique (F), coconut (C), glass (G), polypropylene (PP) and steel (St) were used. The physical, mechanical and durability properties of the mortar made with each type of fiber were determined. The mortar matrix included additions such as silica fume (SF), and a superplasticizer (SP). Durability properties under marine environments were evaluated by measuring chloride ion penetration and water absorption.

The test results indicate an increase in the matrix porosity due to fiber application, but the blended cement matrix showed superior performance compared to the portland cement under marine service conditions. The utilization of mineral additions and additives in fiber reinforced mortars under severe environments was recommended.

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,
R.
and
Heidersbach
,
R.
, “
Degradation of Metal-Fiber-Reinforced Concrete Exposed to a Marine Environment
,”
Corrosion of Reinforcing Steel in Concrete
, ASTM STP 713,
Grace
W. R.
, Ed.,
American Society for Testing and Materials
,
Philadelphia
,
1984
, pp.75–92.
2.
Mindess
,
S.
, “
Fibre Reinforced Concrete, Challenges and Prospects
,”
Fiber Reinforced Concrete, Banthia and Mindess
, Ed.,
Univ. of British Columbia
,
1993
, pp. 1–11.
3.
Shah
,
S. P.
, and
Marikunte
,
S. S.
, “
Fiber Reinforced Concrete
,”
Proceedings of ACBM Faculty Enhancement Workshop
,
1993
, pp. 226–252.
4.
Baweja
,
D.
,
Sirivivatnanon
,
V.
, and
Gross
,
W
, “
High-Performance Australian Concretes for Marine Applications
,”
High Performance Concrete: Proceedings ACI International Conference, ACI, SP-1419
,
Detroit
,
1994
, pp. 363–377.
5.
Bentur
,
A.
, “
Fiber Reinforced Cementitious Materials
,”
Materials Science of Concrete
,
American Chemical Society
,
1989
, pp. 223–283.
6.
De Gutiérrez
,
R.
,
Delvasto
,
S.
, and
Talero
,
R.
, “
Performance of GGBS Cements
,”
Journal of Solid Waste Technology and Management
, Vol.
25
, No.
2
,
1998
, pp. 112–115.
7.
Perdomo
,
F.
, “
Composites de matriz polimérica y fibra natural de fique
,” Tesis Doctoral en Nuevos Materiales y sus Tecnologias de Fabricación,
Universidad Politécnica de Valencia
, España (in progress).
8.
Delvasto
,
S.
, “
Investigación de los Mecanismos de Adherencia en la Interfase del Material Compuesto Hormigón-Fibra Natural de Fique y de la Optimización de su Comportamiento a la Tenacidad en Servicio
,” Tesis Doctoral en Nuevos Materiales y sus Tecnologías de Fabricación,
Universidad Politécnica de Valencia
, España,
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.
9.
John
,
V. M.
, and
Agopyan
,
V.
, “
Materiais Reforcados con Fibras Vegetais
,”
Simposio International sobre Materiales Reforzados con fibras para Construcción Civil
,
Anais, Sao Paulo
, EP-USP,
1993
, pp. 29–38.
10.
Bentur
,
A.
, et al
, “
Fiber matrix Interface
,”
Second International Workshop: High Performance Fiber Reinforced Cement Composites II (HPFRCC)
,
Ann Arbor, Michigan
, Edited by
Naaman
A. E.
and
Reinhart
H. W.
,
1996
.
11.
Balaguru
,
P.
and
Shah
,
S.
, “
Fiber Reinforced Cement Composites
,”
McGraw Hill
Ed.,
1992
, 313 p.
12.
Fagerlund
,
G.
, “
On the Capillarity of Concrete
,”
Nordic Concrete Research No. 1
, Oslo, Paper No. 6,
1982
, pp. 1–20.
13.
Morgan
,
D. R.
, “
Developments in Shotcrete for Repairs and Rehabilitation
,”
CANMET International Symposium on Advances in Concrete Technology
,
Athens, Greece
,
1992
.
14.
Aguilar
,
M. T. P.
, et al
, “
Mechanical Properties of Synthetic Fibers Reinforced Plaster with Silica Fume or Slag
,”
II International Conference in High Performance Concrete SP-58, Performance and Quality of Concrete Structures
,
Granado, Brasil
,
06
1999
.
15.
Saricimen
,
H.
, “
Research to Improve Durability of Reinforced Concrete in Agressive Environments
Controlling Concrete Degradation
,
Dhir
R. K.
and
Newlands
M. D.
, Eds., UK,
1999
.
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