Chloride Penetration Resistance Studies on Concretes Modified with Alkali Resistant Glass Fibers

Chandramouli,

doi:10.3844/ajassp.2010.371.375

Cited by 10 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The durability of different AR-GFRC was investigated by Bentur and Bassat [9]; the aging effects on the flexural properties and the microstructure of the composites were determined in different environments and the test results were verified by scanning electron microscopy (SEM). Chandramouli, Rao, et al [10] investigated the durability of concrete specimens with different fiber content using a rapid chloride ion penetration test; the effect of the glass fiber content on the concrete durability and strength was determined. As new techniques have been developed, nondestructive testing methods have been used to monitor the aging process of GFRC.…”

Section: Introductionmentioning

confidence: 99%

A Statistical Damage Constitutive Model Based on the Weibull Distribution for Alkali-Resistant Glass Fiber Reinforced Concrete

et al. 2019

View full text Add to dashboard Cite

The addition of alkali-resistant glass fiber to concrete effectively suppresses the damage evolution such as microcrack initiation, expansion, and nucleation and inhibits the development and penetration of microcracks, which is very important for the long-term stability and safety of concrete structures. We conducted indoor flat tensile tests to determine the occurrence and development of cracks in alkali-resistant glass fiber reinforced concrete (AR-GFRC). The composite material theory and Krajcinovic vector damage theory were used to correct the quantitative expressions of the fiber discontinuity and the elastic modulus of the concrete. The Weibull distribution function was used and an equation describing the damage evolution of the AR-GFRC was derived. The constitutive equation was validated using numerical parameter calculations based on the elastic modulus, the fiber content, and a performance test of polypropylene fiber. The results showed that the tensile strength and peak strength of the specimen were highest at a concrete fiber content of 1%. The changes in the macroscopic stress–strain curve of the AR-GFRC were determined and characterized by the model. The results of this study provide theoretical support and reference data to ensure safety and reliability for practical concrete engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

A Statistical Damage Constitutive Model Based on the Weibull Distribution for Alkali-Resistant Glass Fiber Reinforced Concrete

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Significant studies have been conducted to improve the tensile characteristics of such cementitous materials. Several of these investigations focused on the inclusion and effect of discontinuous reinforcement, emphasizing the influence of short, randomly distributed fibers on concrete's tensile characteristics (Banthia and Gupta, 2004;Ravichandran et al, 2009;Ramli, 2010;Chandramouli et al, 2010). The experimental and analytical results revealed that the addition of discontinuous fibers to the cementitious matrix can have a significant influence on post-crack ductility and greatly improves toughness.…”

Section: Introductionmentioning

confidence: 99%

Flexural and Tensile Characteristics of Micro Fiber-Reinforced Very High Strength Concrete Thin Panels

A.¹

2012

American Journal of Engineering and Applied Sciences

View full text Add to dashboard Cite

The purpose of this research was to experimentally characterize the flexural and tensile characteristics of fiber-reinforced Very High-Strength Concrete (VHSC) panels. The panels were made with a unique mix of cementitous materials achieving compressive strength of 26,000 psi (180 MPa) or greater. VHSC panels were reinforced with polypropylene fibers of 1 inch (25.4 mm) in length and Polyvinyl alcohol (PVA) micro-fibers of Â½ inch length, incorporated at 1.5% by volume. For the flexural behavior, 17Ã2ÃÂ¾ inch flat panels were tested under third-point loading tests, while the direct tension experiments were tested on 10Ã3ÃÂ½ inch tension panels under a direct tensile load. Flexural tests were conducted on three panels of plain VHSC, three panels of VHSC reinforced with polypropylene fibers and three panels of VHSC reinforced with Â½ inch micro-fibers. Similar testing program was used to conduct the direct tension tests. Also, compression test conducted on 2Ã2Ã2 inch cubes and compressive test conducted on 4 inch by 8 inch cylinders test were used to establish compressive strength and modulus of elasticity respectively. Results show that the compressive strength, tensile strength and fracture toughness of the VHSC panels were much greater than those normally obtained by typical concrete material. The presence of fibers increases the toughness of VHSC specimens between 80 and 190% and increases the tensile strength by 23 to 47%. The modulus of elasticity and Poissonâs ratio recorded herein were determined according to ASTM C 469-02. Laboratory experiments on flexural and tensile properties of thin, very high-strength, fiber reinforced concrete panels, were used to study the material and characterize the panelsâ reaction to load. Parameters such as compressive strength, tensile strength, toughness, elastic modulus, Poissonâs ratio and first-crack strength were determined and may be considered for potential use as design parameters in future material improvements

show abstract

“…Crystallization of NaCl salt inside these microfissures may have favored the breakdown the mass of proof bodies containing the compound. Some of the solutions to decrease the permeability of chloride in mortar may be the incorporation of bagasserice husk-wood ash like additive (Horsakulthai and Paopongpaiboon, 2013) and the incorporation of alkali resistant glass fiber, according Chandramouli et al (2010). By means of the data obtained in the ultraviolet tests, shown in Table 3, it was found that the loss of mass by mortar containing the residue dregs-grits were similar to standard mortar.…”

Section: Resultsmentioning

confidence: 96%

Durability of Mixed Mortar Lining Containing Dregs-Grits

Zanella¹

2014

American Journal of Environmental Sciences

View full text Add to dashboard Cite

The improper disposal of industrial waste and exploitation of natural resources has resulted in the scarcity of river sand and environmental degradation, such as river erosions and pollution. This study aimed to assess the durability of mixed mortar lining walls and ceilings, containing 0 (default), 10 and 20% of dregsgrits compounds-waste of the pulp industry-in substitution with river sand. This was done with tests that simulated both natural and artificial conditions: Direct solar incidence (testing ultraviolet radiation), attack by spraying solution (salt spray test), natural warming of the walls and ceilings incidence by indirect solar (thermal degradation) and residential fires (thermogravimetric test), in compliance with both national and/or international standards. The grout containing dregs-grits compounds showed similarity to standard (0%) for testing thermal degradability, thermogravimetric and ultraviolet radiation, but shows significantly less durability when exposed to salty environments.

show abstract

Chloride Penetration Resistance Studies on Concretes Modified with Alkali Resistant Glass Fibers

Cited by 10 publications

References 7 publications

A Statistical Damage Constitutive Model Based on the Weibull Distribution for Alkali-Resistant Glass Fiber Reinforced Concrete

A Statistical Damage Constitutive Model Based on the Weibull Distribution for Alkali-Resistant Glass Fiber Reinforced Concrete

Flexural and Tensile Characteristics of Micro Fiber-Reinforced Very High Strength Concrete Thin Panels

Durability of Mixed Mortar Lining Containing Dregs-Grits

Contact Info

Product

Resources

About