Properties of Concrete Containing Vitreous Calcium Aluminosilicate Pozzolan

Hossain, Akhter B.; Shirazi, Satiar A.; Persun, Jarrod; Neithalath, Narayanan

doi:10.3141/2070-05

Cited by 11 publications

(7 citation statements)

References 13 publications

(9 reference statements)

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“…The improvement in resistance to chloride penetration may be related to the refined pore structure of these concretes and their reduced electrical conductivity (Talbot et al 1995). This which was confirmed by many researchers (Ghrici et al 2006;Rukzon and Chindaprasirt 2009;Chindaprasirt et al 2007;Gastaldini et al 2007;Pourkhorshidi et al 2010;Ramezanianpour et al 2010;Hossain et al 2008;Rukzon and Chindaprasirt 2009;Chindaprasirt et al 2007;Gastaldini et al 2007), is due to the secondary pozzolanic reaction which contributes to make the microstructure of concrete denser. If a higher volume of scoria is added, much lower penetrability can be achieved.…”

Section: Rapid Chloride Penetrabilitymentioning

confidence: 56%

Effect of Adding Scoria as Cement Replacement on Durability-Related Properties

al-Swaidani

Aliyan²

2015

International Journal of Concrete Structures and Materials

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A lot of reinforced concrete (RC) structures in Syria went out of service after a few years of construction. This was mainly due to reinforcement corrosion or chemical attack on concrete. The use of blended cements is growing rapidly in the construction industry due to economical, ecological and technical benefits. Syria is relatively rich in scoria. In the study, mortar/concrete specimens were produced with seven types of cement: one plain Portland cement (control) and six blended cements with replacement levels ranging from 10 to 35 %. Rapid chloride penetration test was carried in accordance with ASTM C 1202 after two curing times of 28 and 90 days. The effect on the resistance of concrete against damage caused by corrosion of the embedded steel has been investigated using an accelerated corrosion test by impressing a constant anodic potential. The variation of current with time and time to failure of RC specimens were determined at 28 and 90 days curing. In addition, effects of aggressive acidic environments on mortars were investigated through 100 days of exposure to 5 % H 2 SO 4 , 10 % HCl, 5 % HNO 3 and 10 % CH 3 COOH solutions. Evaluation of sulfate resistance of mortars was also performed by immersing in 5 % Na 2 SO 4 solution for 52 weeks. Test results reveal that the resistance to chloride penetration of concrete improves substantially with the increase of replacement level, and the concretes containing scoria based-blended cements, especially CEM II/B-P, exhibited corrosion initiation periods several times longer than the control mix. Further, an increase in scoria addition improves the acid resistance of mortar, especially in the early days of exposure, whereas after a long period of continuous exposure all specimens show the same behavior against the acid attack. According to results of sulfate resistance, CEM II/B-P can be used instead of SRPC in sulfate-bearing environments.

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Section: Rapid Chloride Penetrabilitymentioning

confidence: 56%

Effect of Adding Scoria as Cement Replacement on Durability-Related Properties

al-Swaidani

Aliyan²

2015

International Journal of Concrete Structures and Materials

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“…Furthermore, it was observed that the addition of E-glass as a cement replacement improved durability characteristics of concrete such as resistance against sulfate attack and chloride penetration. Hossein et al (8), studied the fresh and hardened properties of the concrete mixture containing glass fiber particles. It was reported that utilization of this material as a cement replacement increased the workability of the fresh concrete mixtures (higher slump), increased the plastic shrinkage and also reduced chloride ion permeability.…”

Section: Introductionmentioning

confidence: 99%

Role of Ground Glass Fiber as a Pozzolan in Portland Cement Concrete

Rashidian-Dezfouli

Rangaraju

2017

Transportation Research Record: Journal of the Transportation R

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Millions of tons of fiberglass are produced annually for a variety of applications. Because of stringent quality requirements and operational characteristics of the manufacturing plants, a significant quantity of fiberglass that does not meet required specifications of the industry ends up as waste in landfills. This study investigated the use of ground glass fiber (GGF) that had been discarded by plants because it did not meet prescribed standards, as a supplementary cementitious material (SCM) for portland cement. Three replacement levels (10%, 20%, and 30% by mass) for portland cement in paste, mortar, and concrete mixtures were studied. Mechanical and durability properties of the mixtures were compared with two control mixtures: a mixture made up of 100% portland cement and a mixture with 25% Class F fly ash as a cement replacement material. It was observed in these studies that even though replacement of portland cement with GGF did not lead to any significant changes in the mechanical behavior of hardened concrete, there were significant improvements in durability properties at replacement levels up to as high as 20%. The use of GGF was found to improve significantly the resistance of mortar mixtures to alkali–silica reaction and sulfate attack. In addition, the use of GGF as an SCM significantly reduced the chloride ion permeability of concrete. Results of this study show that using GGF as an SCM can result in a better durability performance compared with a mixture with a similar level of Class F fly ash.

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“…Chen et al (2) studied the utilization of waste E-glass (the most commonly used type of fiber glass) as cement replacement material. In addition, a number of studies were also conducted on the utilization of vitreous calcium aluminosilicate (which is a commercially produced pozzolan made from by-products of fiber glass) as cement replacement material (3,4) or as a precursor for geopolymer production (5,6).…”

Section: Introductionmentioning

confidence: 99%

Comparison of strength and durability characteristics of a geopolymer produced from fly ash, ground glass fiber and glass powder

Rashidian-Dezfouli

Rangaraju

2017

Mater. construcc.

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Strength and durability characteristics of geopolymers produced using three precursors, consisting of fly ash, Ground Glass Fiber (GGF), and glass-powder were studied. Combinations of sodium hydroxide and sodium silicate were used as the activator solutions, and the effect of different sodium and silica content of the activators on the workability and compressive strength of geopolymers was investigated. The parameters used in this study were the mass ratio of Na2O-to-binder (for sodium content), and SiO2-to-Na2O of the activator (for silica content). Geopolymer mixtures that achieved the highest compressive strength from each precursor were assessed for their resistance to alkali-silica reaction and compared against the performance of portland cement mixtures. Test results revealed that GGF and fly ash-based geopolymers performed better than glass-powder-based geopolymer mixtures. The resistance of GGF-based and fly ash-based geopolymers to alkali-silica reaction was superior to that of portland cement mixtures, while glass-powder-based geopolymer showed inferior performance.

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Properties of Concrete Containing Vitreous Calcium Aluminosilicate Pozzolan

Cited by 11 publications

References 13 publications

Effect of Adding Scoria as Cement Replacement on Durability-Related Properties

Effect of Adding Scoria as Cement Replacement on Durability-Related Properties

Role of Ground Glass Fiber as a Pozzolan in Portland Cement Concrete

Comparison of strength and durability characteristics of a geopolymer produced from fly ash, ground glass fiber and glass powder

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