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determination of acid soluble sulfate in concrete


    METHOD OF TESTING SOILS AND WATERS FOR SULFATE CONTENT A. SCOPE This method describes test procedures for determination of the sulfate content of soils and waters. These results are used in determining the corrosive nature of the environment for concrete structures, as well as …

    4.2 Determination of sulfur compounds 10 4.2.1 Water-soluble sulfur (WSS) 10 ... minus acid-soluble sulfate. If this is greater than the limiting values given in the document, the material should ... of sulfate attack on buried concrete in bridge foundations. A review by TRL (Unpublished Project Report PR/CE/

    AET has invested in a state-of-the-art chemistry lab in Saint Paul to serve our clients nationwide. Our principal chemist has almost 30 years of experience with the chemical analysis of concrete and construction materials in independent, production, and manufacturing environments. ... ASTM C 114 Acid Soluble Sulfate; ASTM C 114 Chemical (Oxide ...

    1.1 Use this method to determine the concentration of water-soluble chloride and sulfate ions in concrete. Part I describes the ion chromatography method, and Part II describes the wet ... for the determination of chloride and sulfate ions in water by ... 8.6 Calculate pounds of sulfate per cubic yard of concrete: 4 1,000,000 P SO Du c

    Determination of pH Value of Ground Water: 13: Testing of Water for Making Concrete: 14: Sulfate Content of Hardened Concrete: 15: Chloride Content of Hardened Concrete: 16: Cement content of concrete : 17: Acid soluble sulphate Content of Aggregates: 18: Acid soluble Chloride Content of …

    Physical Salt Attack on Concrete, Part 2 ACI Spring 2012 Convention March 18 – 21, Dallas, TX ... Water-Soluble Sulfate (SO4) in Soil, % mass ... sulfate attack on the concrete. 2. Composition of portland cement was less important as it relates to performance in sulfate

    4.1 This test method can be used to determine if soils could have an adverse reaction with hydraulic cement concrete. 1.1 This test method is for the determination of water-soluble sulfate in soils. 1.2 This test method was developed for concentrations of water-soluble sulfate in soils between 0 ...

    However, some organic substances that may be introduced into mortar or concrete contain chloride that is initially acid-insoluble that can eventually ionize and thus become acid-soluble or water-soluble after a period of exposure in the very alkaline cement system.

    Expert Group, set up to investigate sulfate-related deterioration in concrete, highlighted the extent to which ... There are a large number of test methods for the determination of sulfate/sulfide in soils (see Appendix). TRL Report ... • The acid-soluble sulfate (AS) content, which is a measure of the immediately-available sulfate (use ...

    The results of the experiment allow the precision of the determination of acid-soluble sulfate to be stated (as the percentage SO 3 by mass) as: r 1 = 0.021 + 0.200 X and R 1 = 0.000 + 0.812 X. where "X" represents the average of the test results.

    Determination of Ethyl Hydrogen Sulfate, Diethyl Sulfate, and Sulfuric Acid in Diethyl Sulfate Solutions. H. G ... PDF w/ Links. Spectro-Visual Method for Determining End Points. Application to Titration of Soluble Sulfate. H. H. Bovee and R. J ... The determination of sulfate concentration in water by indirect EDTA titration is an instructive ...

    Analysis of acid-soluble chloride in cement, mortar, and concrete by potentiometric titration without filtration steps Author links open overlay panel Miguel A. Climent a Estanislao Viqueira a Guillem de Vera a M.M. López-Atalaya b

    Effect of Chloride and Sulfate Contamination in Soils on Corrosion of Steel and Concrete ... the following: (a) water soluble chlorides, by titrating against mercuric nitrat (14), and (b) hydroxyl ion concentration, by ... and titrating the filtrate against 0.01 M sulfuric acid.

    The ferrous form is soluble, whereas the ferric form is not. The more oxidized the soil becomes, the more the ferric forms dominate. Acid sulfate soils exhibit an array of colors ranging from black, brown, blue-gray, red, orange and yellow. ... Damage to infrastructure through the corrosion of concrete and steel pipes, bridges and other sub ...

    Determination of chloride and sulfate in pore solutions of concrete by ion chromatography ... the corresponding concentrations of total acid soluble chloride in the concrete was analyzed ...

    Sulfate in belite presents in a trace amount in cement, but it may release at later ages and favor the later strength development and volume stability of concrete.

    This Standard sets out methods for the determination of chloride content and sulfate content (including easily oxidizable sulfide content) of concrete and concrete aggregates. The solutions obtained from the sample may also be used to determine the acid- soluble calcium oxide content of these materials.

    DETERMINING CHLORIDE AND SULFATE CONTENTS IN SOIL TXDOT DESIGNATION: TEX-620-J CONSTRUCTION DIVISION 3 – 11 LAST REVIEWED: OCTOBER 2014 PART I—ION CHROMATOGRAPHY METHOD 3. SCOPE 3.1 This method, for the determination of chloride and sulfate ions in water by chromatography, is similar to the method described in ASTM D 4327.

    6. AS 1012.20: 1992 Methods of testing concrete - Method 20: Determination of chloride and sulfate in hardened concrete and concrete aggregates 7. BS EN 1744-5: 2006 Tests for chemical properties of aggregates. Determination of acid soluble chloride salts 8. ASTM D512 - 12 Standard test methods for chloride ion in water 9.

    BS 812 Part 118 Clause 6 Testing aggregates. Methods for determination of Sulfate content BS EN 1744-1+A1 Tests for chemical properties of aggregates. Chemical analysis Determination of Acid Soluble Sulphate in Aggregates BS EN 1744-5 Tests for chemical properties of aggregates. Determination of acid soluble chloride salts

    Sulfate attack in concrete and mortar 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 incorporated into the concrete at the …

    ASTM C 114 Acid Soluble Sulfate Lab ID: 182. Use Sulfate environments are aggressive toward some concretes. Sulfate in cement plays a critical role in setting and strength development. Instructions Sample mass should be at least 10 grams (1/2 oz). Cement samples must be ground to …

    ASTM C 114 Acid Soluble Sulfate; ASTM C 114 Chemical (Oxide) Analysis X-ray Fluorescence (XRF) ... (ASTM C 233 Standard Test Methods for Air Entraining Admixtures for Concrete) ASTM C 25 Chemical Analysis of Limestone, Quick lime, and Hydrated Lime (SO3) ... CSA A23.2-3B Determination of Total or Water Soluble Sulphate Content of Soil;

    This Method covers procedures for the determination of the total chloride ion content or the water-soluble chloride ion content of aggregates, portland cement, mortar or concrete. ... The acid-soluble version, or total chloride version, is known as Procedure B. ... Reinforced concrete with significant chloride ion content is vulnerable to ...

    than by diffusion. Table 2. shows both the acid soluble, as well as the water soluble chloride concentrations in Core 2, from 0.5 to 19.5 cm below the surface. The concentrations at the depth of 0.5 cm are as high as 0.577 % by weight of concrete [~ 15 kg chloride/m3 concrete], and drop to barely detectable amounts at the bottom of the core.

    The Category S in ACI 318- Building Code Requirement for Structural Concrete applies to concrete in contact with soil or water containing deleterious amounts of water soluble sulfate ions.

    Acid-soluble analyses may not provide “total…sulfate.” One determines sulfate content by ... soil has no effect on the concrete. If sulfate is consumed inside the concrete by chemical activity, and this is ... method for determination of the sulfate content of soil. In …

    The determination of chloride ion content in concrete has been performed ... Chlorides are found in concrete in the form of water-soluble salt anions and chemically tied-up chlorides in the cement. Methods are available for ... The additional chlorides, which are acid soluble, are thought to not be as ...

    acid (Aldred 1988). However, many integral water-repellents offer ... Table 1. Requirements for Concrete Exposed to Sulfate-Containing Soils and Solutions ... Test method: ASTM C1580, Standard Test Method for Water-Soluble Sulfate in Soil. Source: Adapted from Bureau of …

    The second method for the determination of total sulphate by acid extraction is specified as it is impractical to produce a method for the determination of total water-soluble sulphate because of low water solubility of calcium sulphate. For practical purposes for aggregates in concrete, the total sulphate content determined by this method is ...

    Sulfate's effect on concrete foundations has been the source of litigation and large settlements in California and has raised questions in other parts of the United States.

    Sulfate attack in concrete and mortar - Wikipedia. Sulfate attack in concrete and mortar can be ... due to a soluble source being incorporated into ... this can produce sulfuric acid which reacts with the concrete;

    METHOD OF TEST FOR DETERMINATION OF TOTAL CHLORIDE ION IN CONCRETE - (ACID SOLUBLE) 1. SCOPE 1.1 This method covers procedure for the determination of the total chloride ion content of concrete cores. The method is limited to materials that do not contain sulfides, but the extraction procedure. Section 7 may be used for all such materials. 2.

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