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determining chloride content of concrete the virginia

determining chloride content of concrete the virginia

Determining Chloride Content of Concrete The Virginia ...

ACI 318-19 section 26.4.2.2 provides two alternatives for determining the chloride ion content of concrete: (1) calculate the chloride ion content based upon the total chloride ion content of the concrete materials and mix proportions, or (2) test for water-soluble chloride ion content in accordance with ASTM C1218.

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The development of a field procedure for determining the ...

The development of a field procedure for determining the chloride content of concrete and an analysis in the variability of the effective diffusion constant dc.contributor.author Herald, Stephen Estel

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The determination of the chloride content of concrete ...

Sep 01, 1985  Once the chloride is in solution, the recommended determination of the chloride content is by a conventional precipitation titration using a standard silver nitrate reagent. The titration is normally followed by a potentiometric monitoring of the chloride ion concentration with an

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FINAL REPORT TRIAL APPLICATION OF ELECTROCHEMICAL

concrete piers on which to conduct ECE, (2) determining the pretreatment chloride contents in the deck and piers, (3) preparing the structures, (4) constructing the ECE treatment systems, (5) treating the concrete members, and (6) determining the post-treatment chloride contents and other relevant conditions of the treated members.

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Chloride Content of Concrete - Atlantic Testing Laboratories

Jan 29, 2020  The most common source of chloride ions is deicing salts but they can also come from aggregates, mix water, accelerating admixtures, and even from adjacent soils. There are three commonly used test methods of chloride content determination of hardened concrete: ASTM C 1218 for determining water-soluble content; ASTM C 1152 for determining the ...

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CHLORIDES IN CONCRETE - CTI Consultants

METHODS FOR DETERMINING CHLORIDE CONTENT OF CONCRETE C HLORIDE C ONTENT OF H ARDENED C ONCRETE The chloride content of hardened concrete can be determined by chemical analysis, using AS 1012.20-1992, ASTM C 1152-97 or BS 1881 Part 124-1988. The latter involves a more simple extraction procedure. All three of these standards are for the

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Report Details - Virginia Department of Transportation

With this method, cold digested solutions of concrete samples are spiked twice with a relatively small and precisely measured amount of a standard NaCl solution and the chloride content of each sample is calculated from the potential readings before and after the

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Determining the Chloride Content of Fresh Concrete

The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design ...

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Chloride content limits ... - Concrete Construction

tests for total chloride content (of the hardened concrete) be made first, according to the method of ASTM C 114. (If desired, the chlori d e content of any of the ingre d i e n t s may be determined separa t e l y.) If the total chloride content exc e e d s the allowable limits, then the water-soluble portion should be mea-s u re d .

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Methods for determining the water and cement content of ...

[1] Head W. J. et al.—Evaluation of selected procedures for the rapid analysis of fresh concrete, West Virginia University. [2] Popovics S. —Determination of the composition of fresh concrete by nonnuclear means.Conference Proceedings M-128, Construction Engineering Research Laboratory, May 1975. [3] Neville A. M. —Analysis of fresh concrete.Concrete, Vol. 7, No. 3, March 1973.

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Condition Evaluation of Concrete Bridges Relative to ...

Chloride-induced corrosion of the reinforcing steel is recognized as a primary factor contributing to concrete bridge deck deterioration. This report deals with the selection of a method and the development of detailed procedures to accurately measure the chloride content of reinforced concrete in the field.

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Determining chloride content in concrete by titration ...

Jan 03, 2021  This video demonstrates sample preparation procedure for determining acid soluble chlorides in cementitious systems. The test is performed on powdered sample...

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Calculation of Chloride Penetration Profile in Concrete ...

The tests for determining the presence of chloride ion in the concrete, and their respective penetration were performed according to ASTM C1543-02 on specimens cured for 91 days. solution of calcium hydroxide Ca(OH) 2 in distilled water, contained in a closed vessel. They remained until reaching constant weight, ± 0.1% by mass.

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Analysis of total chloride content in concrete

Total chloride content:is the total amount of chloride ion in a sample of concrete, including bound in the solid phases and free chlorides in the pore solution. Free chloride content:is the amount of chloride ion in the pore solution as obtained by squeezing con-crete samples at high pressures. Water soluble chloride content:is the amount of

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Fully automatic determination of chloride in hardened ...

Sep 01, 2015  The concrete is therefore checked for chloride content as part of the inspection of the integrity of the affected structures. Drill dust samples are collected from various pre-determined points in the structure, generally from different depths, for chloride content determination.

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Chloride in concrete (BS 8500)

Chloride in concrete (BS 8500) BS 8500 Concrete – Complementary British Standard to BS EN 206 requires that concrete should have a maximum chloride ion content by mass of cement depending on certain criteria. This is expressed as a chloride class e.g. Cl 0,40 The use of a comma , instead of a full stop . is how it is expressed in the main Standard BS EN 206.

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The development of a field procedure for determining the ...

The development of a field procedure for determining the chloride content of concrete and an analysis in the variability of the effective diffusion constant View/ Open LD5655.V855_1989.H473.pdf (13.74Mb)

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DETERMINING CHLORIDE IN CONCRETE

DETERMINING CHLORIDE IN CONCRETE TXDOT DESIGNATION: TEX-617-J CONSTRUCTION DIVISION 6 – 14 LAST REVIEWED: OCTOBER 2014 8.4 Calculate pounds of chloride per cubic yard of concrete: 1,000,000 P Cl Du c Where: P = pounds of chloride per cubic yard of concrete Cl = concentration of chloride ions in the original concrete sample, ppm D c = density of concrete =

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CONDITION EVALUATION OF CONCRETE BRIDGES RELATIVE

Predicted chloride content values for Virginia bridge VA 1-81 over 927 NB . . . 129 B-6. Predicted chloride content values for Virginia bridge VA 1-81 over 676 NB . . . 132 ... The standard method for determining the chloride content of concrete--potentiometric titration in the laboratory (AASHTO T260-84)--is arduous, time-consuming, and ...

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ACCEPTABLE CHLORIDE ION LIMIT IN CONCRETE

total chloride ion content by the weight of cementitious materials determined by acid-soluble method was preferred as the representation of chloride content in concrete. 17.Key Words Acceptable Chloride Limit, Chloride Threshold, Corrosion, Linear Polarization Resistance, Acid-Soluble Chloride, Water-Soluble Chloride, Chloride Binding 18.

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Virginia Concrete Conference Richmond, Virginia March 4 ...

Virginia Concrete Conference. Richmond, Virginia. March 4 and 5, 2010. ... determining the chloride ion content • removing 4-in diameter cores and measuring the permeability to chloride ion. 12 Methods Continued ... • Chloride content along the construction joints is

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CONDITION EVALUATION OF CONCRETE BRIDGES RELATIVE

Predicted chloride content values for Virginia bridge VA 1-81 over 927 NB . . . 129 B-6. Predicted chloride content values for Virginia bridge VA 1-81 over 676 NB . . . 132 ... The standard method for determining the chloride content of concrete--potentiometric titration in the laboratory (AASHTO T260-84)--is arduous, time-consuming, and ...

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Determining the Chloride Content of Fresh Concrete

The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design ...

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The determination of the chloride content of concrete ...

Abstract The free chloride in concrete is a factor in the corrosion of embedded steel while bound chloride is not. Various procedures for the recovery and determination of free chloride in concrete have been examined. The methods involved hot and cold water extractions with results dependent upon the subdivision of the sample and the nature, temperature and duration of the extraction step.

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CHLORIDE IN CONCRETE ADMIXTURES

CHLORIDE IN CONCRETE ADMIXTURES (An Arizona Method) SCOPE 1. (a) This test method describes a procedure for determining the chloride content of products used as admixtures in Portland cement concrete. The method employs a standard addition technique using a chloride electrode. (b) This test method involves hazardous material, operations, and

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Chloride Content Test For Concrete Structure Durability

It is estimated that between 50 and 75% of the total chloride content in the concrete will be water soluble and will impact the corrosion process. The maximum permissible chlorides concentration are in the range of 0.05 to 0.1% by weight of concrete, which is about 1.1 to 2.4 Kg/m 3 ( 2 to 4 lbs/yd 3 ).

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Chloride Ion Content Calculator for Concrete Mixtures

Chloride Ion Content Calculator for Concrete Mixtures. Directions for use: All input cells are blue and are the only cells you can edit. Fill in company and mix design name if desired at top. The “Custom Material ID” column on the far left is where you can put custom names for your materials (supplier name, aggregate type, etc) ...

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Chloride Content of Portland Cement Concrete Powder by a ...

In concrete, chloride is present both in water-soluble and insoluble forms. During the last 20 years, methods have been developed to determine the chloride content of concrete. Ber­ man (6) developed a wet-chemical method for determination of the total chloride content of concrete

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Quantitative Determination of Chloride-to-Cement Content ...

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A S Laboratories Chlorides - Chloride Testing

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. This method is limited to materials that do not contain sulfides. The water-soluble version of this test is known as Procedure A. The acid-soluble version, or total ...

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Chloride Content Construction Materials Consultants, Inc.

Therefore, determination of chloride contents in concrete is important for assessment of potential for chloride-induced corrosion of steel in concrete, and subsequent corrosion-related distress. ASTM C 1152 test for nitric acid-soluble chloride content in concrete, which corresponds to the total chloride content contributed from all the solid ...

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Fully automatic determination of chloride in hardened ...

Jan 09, 2015  The concrete is therefore checked for chloride content as part of the inspection of the integrity of the affected structures. Drill dust samples are collected from various pre-determined points in the structure, generally from different depths, for chloride content determination.

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Concrete Diffusion Coefficients and Existing Chloride ...

titration, a rapid chloride test kit was also evaluated to determine the chloride content of concrete powder samples. A survey was sent out to highway and bridge maintenance personnel in the six geographic regions considered (Coastal, Manteo,

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Evaluation of Rapid Determination of the Chloride ...

ion content and the chloride permeability. It was determined that there was a correlation and that the permeability machine was satisfactory for determining chloride permeability in concrete. The second purpose of this study was to examine the effects that pozzolans have on the chloride permeability of concrete.

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