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High Sulfate Attack Resistance of Reinforced Concrete

Changes in compressive strength, pore structure, weight, volume, and strength of the concrete flumes after immersion in two sulfate solutions (i.e., Na 2 SO 4 and MgSO 4) for 84 and 182 days were measured for sulfate attack resistance. The applicability of the LWGP concrete flume with a 0.5 mm crack width was also evaluated based on the bending ...

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High Sulfate Attack Resistance of Reinforced

2019-5-30  To prevent chemical erosion of concrete and improve chemical resistance, reinforced concrete flumes were manufactured, conforming to the

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(PDF) High Sulfate Attack Resistance of Reinforced

2019-6-25  Changes in compressive strength, pore structure, weight, volume, and strength of the concrete flumes after immersion in two sulfate solutions (i.e., Na2SO4 and MgSO4) for 84 and 182 days were ...

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High Sulfate Attack Resistance of Reinforced Concrete

2019-6-25  The durability of the conventional reinforced concrete flumes against the sulfate attack resistance was improved by substituting cement by LWGP, thereby extending the use of the new reinforced concrete flumes to the replacement of conventional reinforced concrete flumes. The applicability was also validated by the flexural test complying with KS.

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High Sulfate Attack Resistance of Reinforced Concrete

2019-6-25  2.5. Test for the Sulfate Attack Resistance of Concrete The cured specimens at 28 days were immersed in a solution of 5% Na2SO4 and MgSO4 to measure the reduction ratios of the volume, weight, and the changes of the compressive strength at 84 and 182 days. The LWGP concrete specimens cured in water for 28 days were immersed for 182 days. The used

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Sulfate Attack - an overview ScienceDirect Topics

Sulfate attack is another possible deterioration mechanism of concrete. It can have endogenous origin (developing without any contribution from the environment) or exogenous origins (such as sulfates contained in the soils or in liquids) (Germain, 2008; Neville, 2004).In both cases, the consequence is some volume expansion owing to the delayed formation of ettringite, which is

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Sulphate attack resistance of high-performance concrete

2013-7-7  In this paper, an experimental study on the sulphate attack resistance of high-performance concrete (HPC) with two different water-to-binder ratios (w/b) under compressive loading is presented. The sulphate concentration, compressive strength, and the mass change in the HPC specimens were determined for immersion in a Na2SO4 solution over different

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Sulfate resistance of high-performance concrete

2003-4-1  Abstract. High-performance concrete mixes containing various proportions of natural pozzolan and silica fume (up to 15% by weight of cement) were prepared and stored in sodium and magnesium sulfate solutions, in Dead Sea and Red Sea waters. The progressive deterioration and the relative sulfate resistance of these mixes were evaluated through ...

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Sulphate attack resistance of high-performance concrete

2017-8-27  damage or enhancing the sulphate resistance of ce-ments (Torii et al., 1995; Lee et al., 2005; Sezer et al., 2008; Bonakdar and Mobasher, 2010). Reducing the concrete w/b ratio or adopting a suitable type of cement can also improve concrete resistance to sulphate attack (Monteiro and Kurtis, 2003; Kockal and Turker, 2007; Chen and Jiang, 2009).

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Sulfate Resistance - an overview ScienceDirect Topics

Sulfate resistance is believed to be lower for concrete with RA. Hansen (1986) reported a decrease of strength after sulfate attack of 18%–60% when testing RA issued from 25 different original concrete. Other researchers reported a lower decrease of 1%–9% ( Gallia, 1999 ). Bulatović et al. (2017) tested eight mixes with coarse NA and RA ...

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[PDF] High Sulfate Attack Resistance of Reinforced

To prevent chemical erosion of concrete and improve chemical resistance, reinforced concrete flumes were manufactured, conforming to the Korean Industrial Standards (KS), and the LWGP5, which has a smaller particle size among LWGPs, filled the smaller pores, thereby reducing the porosity and contributing to the compressive strength gain. To prevent chemical erosion of

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High Sulfate Attack Resistance of Reinforced Concrete

materials Article High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid Crystal Display (LCD) Waste Glass Powder Seong-Kyum Kim 1 and Won-Kee Hong 2,* 1 Department of ...

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Figure 1 from High Sulfate Attack Resistance of Reinforced

High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid Crystal Display (LCD) Waste Glass Powder @article{Kim2019HighSA, title={High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid Crystal Display (LCD) Waste Glass Powder}, author={Seong-Kyum Kim and Won-Kee Hong}, journal={Materials}, year={2019 ...

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High Sulfate Attack Resistance of Reinforced Concrete

2019-6-25  To prevent chemical erosion of concrete and improve chemical resistance, reinforced concrete flumes were manufactured, conforming to the Korean Industrial Stand High Sulfate Attack Resistance of Reinforced Concrete Flumes

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Figure 9 from High Sulfate Attack Resistance of Reinforced

Figure 9. Crack patterns of the LWGP concrete flume. Figure 9. Crack patterns of the LWGP concrete flume.Materials 2019, 12, x FOR PEER REVIEW 12 of 16 - "High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid

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Sulphate attack resistance of high-performance concrete

2013-7-7  In this paper, an experimental study on the sulphate attack resistance of high-performance concrete (HPC) with two different water-to-binder ratios (w/b) under compressive loading is presented. The sulphate concentration, compressive strength, and the mass change in the HPC specimens were determined for immersion in a Na2SO4 solution over different

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Sulphate attack resistance of high-performance concrete

2013-7-1  In this paper, an experimental study on the sulphate attack resistance of high-performance concrete (HPC) with two different water-to-binder ratios (w/b) under compressive loading is presented.

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Sulphate Attack on Concrete - Process and

The quality of concrete; Control of Sulphate Attack on Concrete Following measures help to control sulphate attack”": 1. The quality of concrete, specifically a low permeability, is the best protection against sulphate attack. Adequate

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Sulfate Resistant Concrete - Sika

2022-7-13  Concrete intended to be sulfate-resistant should therefore be characterized by high impermeability as well as higher compressive strength on the one hand. Furthermore, cements with low C3A and Al2 O3 content should be used. Doing so reduces the potential for any deteriorating reactions. In addition the inclusion of silica fume is favorable ...

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Sulfate attack in concrete - Understanding Cement

Sulfate attack in concrete and mortar. Sulfate attack can be 'external' or 'internal'. External: due to penetration of sulfates in solution, in groundwater for example, into the concrete from outside. Internal: due to a soluble source being

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Figure 9 from High Sulfate Attack Resistance of Reinforced

Figure 9. Crack patterns of the LWGP concrete flume. Figure 9. Crack patterns of the LWGP concrete flume.Materials 2019, 12, x FOR PEER REVIEW 12 of 16 - "High Sulfate Attack Resistance of Reinforced Concrete Flumes Containing Liquid

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High Sulfate Attack Resistance of Reinforced Concrete

2019-6-25  To prevent chemical erosion of concrete and improve chemical resistance, reinforced concrete flumes were manufactured, conforming to the Korean Industrial Stand High Sulfate Attack Resistance of Reinforced Concrete Flumes

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Effect of Sulfate Attack on Reinforced Concrete Columns

CFRP confinement effectively mitigated the penetration of sulfate ions into the concrete core and, thus, slowed the degradation of the strength up to 90%. An empirical formula was proposed to estimate the strength of the CFRP-confined concrete subjected to a sulfate attack with close predictions regarding the experimental results.

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Sulphate attack resistance of high-performance concrete

2013-7-1  In this paper, an experimental study on the sulphate attack resistance of high-performance concrete (HPC) with two different water-to-binder ratios (w/b) under compressive loading is presented.

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Sulfate attack resistance and reliability analysis of fibre

2021-7-13  Sulfate erosion is one of the important factors causing the decline of concrete durability, and it is also one of the most environmentally damaging and most influential types of environmental erosion. In view of the problem that the durability of fibre-reinforced concrete decreased due to sulfate attack, according to the natural environmental conditions in western

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Test Methods for Resistance of Concrete to Sulfate Attack

2012-9-20  Many test methods are available to determine the resistance of concrete to sulfate attack, sulfuric acid attack or biogenic sulfuric acid attack. Some test methods take a long time to perform. In the case of ASTM C1012 ( 2004 ), the 6 months to 1 year required for testing would almost certainly cause problems to a company striving to maintain ...

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sulfate attack Topic - American Concrete Institute

2022-3-1  ACI PRC-232.3-14 Report on High-Volume Fly Ash Concrete for Structural Applications. ... Report on the Physical Properties and Durability of Fiber-Reinforced Concrete. ACI PRC-234-06: Guide for the Use of Silica Fume in Concrete (Reapproved 2012) ... Resistance to Sulfate Attack. Publication: Special Publication Date: 8/10/2018 ...

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Effect of Carbonation, Chloride and Sulphate

2018-7-1  The resistance of concrete containing by-products materials to the combined influence of carbonation and chloride ingress has been studied. The fly ash (FA) and silica fume (SF) as by-products ...

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Sulphate Resistant Cement - The Constructor

The use of sulphate resisting cement provides excellent protection against the formation of sulpho-aluminates and consequent resistance to concrete against sulphate attack. Very high compressive strength by economic concrete mix design. Very low heat of hydration helps to avoid shrinkage cracks. Improves life and durability of structures under ...

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Evaluation of sulfate ions in degrading armed concrete

2019-6-12  Concrete is susceptible to attack in places considered aggressive, such as wastewater treatment stations. Sulfate ions attack is very common in these places, resulting in accelerated degradation of the concrete, which can compromise any reinforced concrete structure. In this context, the present research aims to evaluate the pathological

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