00676691

Component

http://onlinepubs.trb.org...trr/1994/1458/1458-008.pdf

https://scholar.google.co...Sure&publication_year=1994

Results of an experimental evaluation of the physical and elastic properties of monofilament polypropylene fiber reinforced concretes are presented. Fiber concentrations used were 0.05, 0.067, 0.1, and 0.2 percent by volume. Performance characteristics of the fiber-reinforced concretes were compared with that of a control concrete without fibers. Fresh concrete properties, such as slump, unit weight, vebe time, inverted cone time, and concrete temperature, were measured. For hardened concrete, 7- and 28-day compressive strength, static modulus, modulus of rupture, and 28-day impact strength were determined. Load deflection curves were plotted from the data obtained in the modulus of rupture test to determine the toughness indexes by the ASTM method and the flexural toughness factor and equivalent flexural strength by the Japanese standard method. There was no balling of fibers during mixing and placing for all the concretes. There was less bleeding in the fiber concretes compared to that of the control concrete. There was no segregation and the finishability was good. There was a significant increase in impact strength with the addition of fibers. The toughness calculated according to the ASTM and the Japanese standard methods increased with an increase in fiber content. There is a positive improvement in the concrete's fatigue resistance with the addition of fibers.

This paper appears in Transportation Research Record No. 1458, Concrete Research. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01401262

English

p. 48-56

1994

Transportation Research Record

0309060656

Figures (8) ; References (13) ; Tables (4)

Bleeding (Pavements); Compressive strength; Deflection; Elasticity (Mechanics); Fatigue strength; Fiber reinforced concrete; Fibers; Flexural strength; Loads; Modulus of rupture; Performance; Physical properties; Polypropylene; Shock resistance; Slump test; Toughness

Fiber content; Impact strength; Performance characteristics

Highways; Materials; I32: Concrete

TRIS, TRB, ATRI

Apr 28 1995 12:00AM

• ADDITION OF CLASS C FLY ASH TO CONTROL EXPANSIONS DUE TO ALKALI-SILICA REACTION
• DEVELOPMENT OF CONCRETE DURABILITY SPECIFICATION AND RATINGS IN FLORIDA
• EFFECT OF CURING ON DURABILITY OF FLY ASH CONCRETE
• EFFECT OF NATURAL POZZOLAN ADDITION ON EXPANSIONS CAUSED BY ALKALI-SILICA REACTION
• EVALUATION AND COMPARISON OF THE PHYSICAL PROPERTIES OF FIBRILLATED POLYPROPYLENE FIBER-REINFORCED CONCRETES
• IMAGE ANALYSIS OF PORTLAND CEMENT CONCRETE AND ASPHALT CONCRETE PAVEMENTS USING SCANNING ELECTRON MICROSCOPE IMAGES (WITH DISCUSSION AND CLOSURE)
• INFLUENCE OF EARLY HEAT CURING ON PROPERTIES OF 100-MPA AIR-ENTRAINED CONCRETE
• INFLUENCE OF LOADING TYPE, SPECIMEN SIZE, AND FIBER CONTENT ON FLEXURAL TOUGHNESS OF FIBER-REINFORCED CONCRETE
• INTERPRETATION OF ACCELERATED TEST METHOD ASTM P214 TEST RESULTS
• MECHANICAL PROPERTIES OF LIGHTWEIGHT CONCRETE INCORPORATING RECYCLED SYNTHETIC WASTES
• NONDESTRUCTIVE IDENTIFICATION OF INTERNALLY DAMAGED AREAS OF CONCRETE BEAM USING THE SPECTRAL ANALYSIS OF SURFACE WAVES METHOD
• OPTIMIZATION OF ROLLER-COMPACTED CONCRETE FOR LOCAL APPLICATION
• PREDICTION OF CREEP EFFECT IN SEGMENTAL CONCRETE BRIDGE CONSTRUCTION
• RECYCLING CONTAMINATED SPENT BLASTING ABRASIVES IN PORTLAND CEMENT MORTARS
• STABILIZATION AND SOLIDIFICATION OF CONTAMINATED SOILS AND SLUDGES USING CEMENTITIOUS SYSTEMS: SELECTED CASE HISTORIES
• SYSTEM OPTIMIZATION OF FAILURE, CONSTITUTIVE MODELING, AND STRENGTHS OF CONCRETE AND OTHER GEOLOGICAL MATERIALS USING GENETIC ALGORITHM
• USE OF MATURITY AND PULSE VELOCITY TECHNIQUES TO PREDICT STRENGTH GAIN OF RAPID CONCRETE PAVEMENT REPAIRS DURING CURING PERIOD