Durability of mortar and concrete made up of pozzolans as a partial replacement of cement: A review

Hossain, M. M.; Karim, Md. Rezaul; Hasan, Md. Kamrul; Hossain, Md. Nur; Zain, Muhammad Fauzi Mohd.

doi:10.1016/j.conbuildmat.2016.04.147

Cited by 194 publications

(79 citation statements)

References 33 publications

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“…It should be noted that these types of cracks tend to happen inside the concrete considering generated load due to expansion is happening from the inside. On the other hand, external loading tends to generate crack on the surface of concrete …”

Section: Introductionmentioning

confidence: 99%

Modeling of chloride ions penetration in cracked concrete structures exposed to marine environments

Ramezanianpour

Ghoreishian

Ahmadi³

et al. 2018

Structural Concrete

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The degradation caused by corrosion of rebar in concrete structures is one of the most important issues to attract the attention of researchers focused on concrete durability. Penetration of chloride ions into concrete is one of the factors that can contribute to corrosion of rebar and consequently the strength of concrete structures as well as serviceability reduction. In this study, an experimental model was proposed to predict penetration of chloride ions into cracked concrete by performing non‐destructive tests. Tests were performed after 48‐months exposure of all samples to a harsh marine environment. For studying the influence of load‐induced cracks on the rebar corrosion, cracked and uncracked beams were tested. Results of this study demonstrated that by the increment of the crack width, corrosion of reinforcement increased and as a result, the probability of degradation of reinforced concrete beams increased accordingly. Furthermore, by the increment of crack width, their depth also increased which caused enhancement of crack depth on the rebar and easier access of chloride ions to the rebar.

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Section: Introductionmentioning

confidence: 99%

Modeling of chloride ions penetration in cracked concrete structures exposed to marine environments

Ramezanianpour

Ghoreishian

Ahmadi³

et al. 2018

Structural Concrete

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“…Some researchers partially replaced cement with pozzolans (e.g., ground granulated blast furnace slag, rice husk ash, pulverized fuel ash, palm oil fuel ash, silica fume, fly ash and metakaolin) [48]. The incorporation of pozzolans generally changes the acid resistance of concrete in two aspects: the change of chemical compositions and the reduction of porosity.…”

Section: Improving Concrete Mixture Designmentioning

confidence: 99%

“…The commonly used test procedure of assessment is to immerse concrete samples in an acid solution (known as the immersion method), which directly investigates the resistance of concrete to acid. Many researchers [48,51,[76][77][78][79][80][81][82] have used this method to evaluate the effectiveness of supplementary cementitious materials (SCMs) in improving the acid resistance of the concrete. However, there are many drawbacks regarding the immersion method.…”

Section: Cement-based Rehabilitation-materials Selection Based On the mentioning

confidence: 99%

The Sustainability of Concrete in Sewer Tunnel—A Narrative Review of Acid Corrosion in the City of Edmonton, Canada

Hu²,

Liu

2018

Sustainability

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This paper is intended to conduct a narrative review on the acid corrosion of sewer tunnel concrete in the City of Edmonton-an investigation on the MIC (microbially induced corrosion) mechanism and the potential control methods to improve the sustainability of concrete. Firstly, three categories of main influencing factors were identified for the rate of MIC: hydraulic parameters, environmental factors, and concrete mixture design. Secondly, it is found that the sewer tunnel design plays an essential role in the control of the MIC. Building on that, a review was conducted on eight municipal drainage design standards in consideration of the MIC, indicating a lack of design standards of the flow velocity and pipe material. Finally, an investigation was done for cement-based rehabilitating techniques and materials.

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“…The supplementary cementitious materials (fly ash, ground granulated blast-furnace slag, silica fume, and others pozzolans) used for concrete could contribute to green design as follows: (1) As industrial by-products, their use as a partial replacement for Portland cement does not contribute to the energy and CO 2 impacts of cement in concrete; (2)Raw material usage is reduced in the manufacture of concrete; (3) Landfill disposal is reduced and there is an increased use of recovered industrial materials; and (4) SCMs improve concrete service life through greater concrete durability [21][22][23][24]. The commonly used materials include fly ash (C and F classes), ground granulated blast-furnace slag, and silica fume, especially fly ash and slag.…”

Section: Pozzolans and Leedmentioning

confidence: 99%

“…One metric ton of slag uses about 14% of energy to produce one metric ton of cement. Additionally, one metric ton of slag produces about 2% of CO 2 emissions to produce one metric ton of cement [16,21]. The carbon footprint for fly ash and silica fume were regarded as being zero because of recycling and the prevention of air pollution.…”

Section: Pozzolans and Leedmentioning

confidence: 99%

Green options for anti-corrosion of high strength concrete incorporating ternary pozzolan materials

Chen

Yang

2017

MATEC Web Conf.

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Abstract. This paper applied the densified mixture design algorithm(DMDA) method by incorporating ternary pozzolans (fly ash, slag and silica fume; mix I and mix II) to design high strength concrete (HSC) mixtures with w/cm ratios from 0.24 to 0.30. Concrete without pozzolans was used as a control group (mix III, w/c from 0.24 to 0.30), and silica fume (5%) was added as a substitute for part of the cement and set as mix IV. Experiments performed compressive strength, four-point resistance meter to measure the conductivity, and rapid chloride ion penetrability tests (ASTM C1202) were assessed the anti-corrosion. The life cycle inventory of LEED suggested by the PCA indicated the green options for cementitious materials. Results showed that mix I and II indicated cement used, CO 2 reduction, raw materials and energy consumption all decreased more 50% than mix III, and mix IV was 5% less. The compressive strength and anti-corrosion levels showed that mix I and II were better than mix III and IV, and with ternary pozzolans could enhance the long-term durability (92 days) due to a resistivity greater 20 Kȍ-cm and a charge passed lower than 2000 Coulombs. HSC with an appropriate design could reduce the carbon footprint and improve the durability.

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Durability of mortar and concrete made up of pozzolans as a partial replacement of cement: A review

Cited by 194 publications

References 33 publications

Modeling of chloride ions penetration in cracked concrete structures exposed to marine environments

Modeling of chloride ions penetration in cracked concrete structures exposed to marine environments

The Sustainability of Concrete in Sewer Tunnel—A Narrative Review of Acid Corrosion in the City of Edmonton, Canada

Green options for anti-corrosion of high strength concrete incorporating ternary pozzolan materials

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