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low temperature sulfate resistance of concrete produced

low temperature sulfate resistance of concrete produced

Low Temperature Sulfate Resistance of Concrete Produced ...

Portland-limestone cement with up to 15% interground limestone was included in the Canadian Standard A3000 for Hydraulic Cements in 2008. However, due to the lack of data on sulfate resistance of concrete especially the potential for thaumasite sulfate attack at low temperatures, the use of portland-limestone cement in concretes subjected to moderate or severe sulfate exposures, even when ...

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Sulfate resistance of concrete produced with portland ...

Apr 02, 2019  • To evaluate the sulfate resistance of concrete mixtures produced with portland and portland-limestone cements and supplementary cementitious materials in both laboratory and field exposures at low temperatures. • To investigate the causes, mechanisms, and depth of deterioration in damaged concrete mixtures exposed to sulfates: • Causes

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Low Temperature Sulfate Resistance of Concrete Produced ...

In this experimental research, the sulfate resistance of fifty three concrete mixtures produced with several combinations of portland and/or portland-limestone cements and SCMs at three different water-to-cementitious materials ratios of 0.40, 0.50, and 0.70 exposed to both sodium and magnesium sulfate solutions was evaluated in both laboratory ...

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RESEARCH: The Beneficial Effect of Slag Cement on Low ...

Experimental program. In this study, the sulfate resistance of fifty three concrete mixtures produced with several combinations of portland and/or portland-limestone cements and supplementary cementitious materials exposed to both sodium and magnesium sulfate solutions was evaluated both in the laboratory and in a novel field sulfate exposures at low temperatures where the thaumasite form

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Sulfate resistance of limestone cement concrete exposed to ...

Sep 01, 2012  Concretes were produced, using the cements of Table 3; cement content (C) of 350 kg/m 3, water to cement ratio (W/C) of 0.52 and calcareous aggregates with a maximum size of 16 mm were used ().Concrete specimens (cubes of 100 mm) were prepared.The specimens were left in the moulds for 24 h, then cured in water for 6 days and finally air-cured for 21 days at laboratory temperature (25

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Testing sulfate resistance of c oncrete – limitations of ...

In this study, 17 concrete mixtures were produced using various cements with low and high sulfate resistance (three different CEM I, 1 CEM I SR, 3 CEM II/B HS (HS = high sulfate resistance according to SN EN 197-1), 1 CEM II/A-LL, 1 CEM III/B HS) at w/c of 0.45 and 0.50. Alluvial sand and gravel (0-22 mm) resistant to ASR were

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Improving concrete resistance to low temperature sulfate ...

Jan 27, 2021  Carbonation-cured OPC concrete had shown excellent resistance to low temperature sulfate attack, despite having a CaCO 3 content equivalent to 36.4% the mass of cement. After a one-year sulfate exposure, the concrete maintained 82.7% of its strength compared to 28.1% retained by the hydrated concrete.

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Testing sulfate resistance of c oncrete – limitations of ...

In this study, 17 concrete mixtures were produced using various cements with low and high sulfate resistance (three different CEM I, 1 CEM I SR, 3 CEM II/B HS (HS = high sulfate resistance according to SN EN 197-1), 1 CEM II/A-LL, 1 CEM III/B HS) at w/c of 0.45 and 0.50. Alluvial sand and gravel (0-22 mm) resistant to ASR were

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Impact and Improvement of Crushed Tuff Sand on Sulfate ...

Oct 10, 2018  The reason that the crushed tuff sand reduced the sulfate erosion resistance ability of concrete at low temperatures is discussed on the basis of the mineral composition of tuff rock powder, the porous structure of concrete, and the interfacial transition zone (ITZ) microstructure of concrete.

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Performance of limestone cement concretes in chloride ...

DOI: 10.1680/JMACR.17.00288 Corpus ID: 115960220. Performance of limestone cement concretes in chloride–sulfate environments at low temperature @article{Sotiriadis2018PerformanceOL, title={Performance of limestone cement concretes in chloride–sulfate environments at low temperature}, author={K. Sotiriadis and S. Tsivilis}, journal={Magazine of Concrete Research}, year={2018},

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Effect of Cement Type on the Resistance of Concrete ...

resistance against chloride penetration, while the pure portland cements gave the lowest resistance. Sulfate resisting cement also had a low resistance against chloride penetration. Concrete produced using the sulfate resisting cement had substantially higher

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Sulfate resistance of filler cement mortars - MedCrave online

Sep 26, 2016  The very high temperature leads to much faster rate of deterioration. The investigation of sulfate resistance is, therefore, of great importance. The scope of these researches to investigate the sulfate resistance of mortars produced with 0, 10, 20 and 30% of crushed limestone and crushed dolomite introduced as partial replacement of cement by ...

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Low Heat Cement

Low Heat Cement Low Heat Cement is specially blended to provide a lower heat of hydration in concrete. This unique attribute makes it ideal for mass concrete pours where the rate of temperature rise and the maximum temperature achieved must be

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Effects of Substances on Concrete and Guide to Protective ...

* Pozzolans and slag that have been determined by testing according to ASTM C1012 or by service record to improve sulfate resistance may also be used. Maximum expansions when using ASTM C1012: Moderate exposure—0.10% at 6 months; Severe exposure—0.05% at 6 months or 0.10% at 12 months; Very Severe exposure—0.10% at 18 months.

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Correlation Analysis between Different Types of Corrosion ...

Concrete samples were made of sulfate resisting cement CEM I 42.5 N-SR 0 produced with clinker with a C 3A (tricalcium aluminate) content of 0%. The composition of concrete mixtures based on sulfate resisting cement is presented in detail in Table 1. Standardized concrete prisms with dimensions of 100 × 100 × 400 mm were cured for 28 days in

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Permeability and Corrosion Resistance of Reinforced Sulfur ...

Temperature rise versus time for various concrete samples tested at 60.0 V ... Concrete with low permeability impedes,. penetration of corrosive agents (chloride and sulfate ions, oxygen, and water), ... the resistance of sulfur concrete rein­ ...

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The use of fly ash to improve the sulfate resistance of ...

Dec 31, 1996  The deterioration of concrete structures due to the presence of mixed sulfate in soils, groundwater and marine environments is a well-known phenomenon. The use of blended cements incorporating supplementary cementing materials and cements with low C{sub 3}A content is becoming common in such aggressive environments.

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Steam Curing of Concrete: Methods, and Advantages - The ...

The above-mentioned temperature and pressure-controlled environment change the chemistry of the hydration process of the concrete. The concrete produced by this method ought to have: No efflorescence; Low moisture content after the curing process; Better sulfate resistance

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Concrete - Wikipedia

Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. In the past, lime based cement binders, such as lime putty, were often used but sometimes with other hydraulic cements, such as a calcium aluminate cement or with Portland cement to form Portland cement concrete (named for its visual ...

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Тези доповідей конференцій: "Dynamic crack resistance ...

Three temperature of -17°C, -20°C, -30°C were chosen as the inner low temperature of concrete specimen during freezing-thawing. The properties of mass, dynamic elastic modulus, flexural strength and compressive strength of low antifreeze design level hydraulic concrete under different low temperature were compared.

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Effect of Cement Type on the Resistance of Concrete ...

resistance against chloride penetration, while the pure portland cements gave the lowest resistance. Sulfate resisting cement also had a low resistance against chloride penetration. Concrete produced using the sulfate resisting cement had substantially higher

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Evaluation of sulfate resistance of cement mortars with ...

Jul 13, 2021  Cement composites such as concrete, mortar, and cement grout have been widely utilized to construct various infrastructures due to their excellent mechanical performance including high loading resistance, low-cost efficiency, and durability [1,2,3].The durability of the concrete structures depends on their resistance to aggressive environments such as sulfate attacks [].

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Low Heat Cement

Low Heat Cement Low Heat Cement is specially blended to provide a lower heat of hydration in concrete. This unique attribute makes it ideal for mass concrete pours where the rate of temperature rise and the maximum temperature achieved must be

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Cement Types

Type HS High Sulfate Resistance Type MH Moderate Heat of Hydration Type LH Low Heat of Hydration Note: For a thorough review of US cement types and their characteristics see PCA’s Design and Control of Concrete Mixtures, EB001 or Effect of Cement Characteristics on Concrete Properties, EB226.

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Performance of Slag Cement with Portland‐limestone Cement ...

consistent difference between expansions produced with PC compared with PLC. Also no difference in the level of SCMs ... attack usually associated with low temperatures (0-10oC) and very wet environments. Sulfate Resistance: 2016 PCA Report based on 10 ... U of T Concrete Sulfate Resistance Program

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Hanson Sulfate-Resisting Cement Technical Data Sheet

Hanson Sulfate-Resisting Cement is a packed factory produced Portland blast furnace cement manufactured to the requirements of BS EN 197-1 CEM III/A . strength class 42,5L. It also has sulfate-resisting properties and has the designation ‘CEM III/A +SR’ as set out in BS 8500 Part 2 ‘Concrete – Complementary British

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Proportioning for Mass Concrete

II Moderate Sulfate Resistance ... IV Low Heat of Hydration V High Sulfate Resistance. Fly Ash Reduces Heat. Fly Ash Reduces Heat “The temperature rise can be reduced by using fly ash as a portion of the ... Concrete Temperature Estimator Portland Type I

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Effects of Substances on Concrete and Guide to Protective ...

* Pozzolans and slag that have been determined by testing according to ASTM C1012 or by service record to improve sulfate resistance may also be used. Maximum expansions when using ASTM C1012: Moderate exposure—0.10% at 6 months; Severe exposure—0.05% at 6 months or 0.10% at 12 months; Very Severe exposure—0.10% at 18 months.

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Scientists Report on Carbon Footprint Reduction of Low ...

Oct 10, 2019  Tests of concrete strength, elasticity, durability such as resistance to freezing and thawing, sulfate resistance, and alkali silica reaction (ASR) met all industry standards.

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13 Types of Cement and their Uses in Concrete Construction ...

It is also produced by adding pozzolana with the addition of gypsum or calcium sulfate or by intimately and uniformly blending portland cement and fine pozzolana. This cement has high resistance to various chemical attacks on concrete compared with ordinary portland cement and thus it is widely used.

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Steam Curing of Concrete: Methods, and Advantages - The ...

The above-mentioned temperature and pressure-controlled environment change the chemistry of the hydration process of the concrete. The concrete produced by this method ought to have: No efflorescence; Low moisture content after the curing process; Better sulfate resistance

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An Experimental Study on Strength and Durability for ...

Nov 11, 2014  The intention of this study is to discuss the variation of concrete exposed to high sulfate environment of a specific region with respect to strength and durability. Secondly, it is aimed to discuss the possibility of reducing the cement amount in construction of concrete structures. For this purpose, laboratory tests were conducted to investigate compressive strength and sulfate resisting ...

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Types of portland cement - Mo Civil Engineering

Type IV: low heat of hydration cement. this type of cement is not produced anymore. in the past, it used for massive structures such as dams. the high heat of hydration will cause tensile stresses on concrete and this will lead to cracks. nowadays pozzolan and slag are used to control cement temperature. Type V: high sulfate resistance cement ...

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Properties of Geopolymer Concrete with Low Calcium Fly Ash

Low calcium fly ash geopolymer concrete possess substantial resistance against sulfate attack. The sulfate resistance is explored through tests under heat curing condition and compressive strength, mass, length, and surface appearance of the specimens observed to evaluate geopolymer concrete sulfate resistance.

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