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astm-c642-density-absorption-and-voids-in-hardened-concrete
Concrete and Mortar Testing AASHTO T112 Density of AggregateAASHTO T119 Compressive Strength of CylindersAASHTO T119 Compressive Strength of CylindersAASHTO T119 Compressive Strength of Cylindrical Concrete SpecimensAASHTO T161 Length Change of Hardened ConcreteAASHTO T22 Slump Test for Fresh ConcreteAASHTO T23 Air Content of Freshly Mixed Concrete by Pressure MethodAASHTO T24 Air Content of Hydraulic Cement Concrete by Pressure MethodAASHTO T71 Sampling and Testing of AggregateAASHTO T97 Compression Testing of ConcreteAASHTO T97 Compressive Strength of CylindersACI 209 Prediction of Creep, Shrinkage, and Temperature EffectsACI 211 Guide for Concrete Mixture ProportioningACI 214 Guide for Evaluation of Strength Test ResultsACI 234 Guide for Concrete DurabilityACI 301 Specifications for Structural ConcreteACI 318 Building Code Requirements for Structural ConcreteACI 318 Structural Concrete Code RequirementsACI 522 Guide for Fiber-Reinforced ConcreteACI 544 Fiber Reinforcement TestingASTM C1064 Temperature of Freshly Mixed Hydraulic-Cement ConcreteASTM C1074 Estimating Concrete Strength by Maturity MethodASTM C1077 Standard Practice for Laboratories Testing ConcreteASTM C109 Compressive Strength of Hydraulic Cement MortarsASTM C109M Compressive Strength of Hydraulic Cement MortarsASTM C114 Chemical Analysis of Hydraulic CementASTM C1152 Acid Soluble Chloride in Concrete and Concrete Raw MaterialsASTM C1157 Performance Specification for Hydraulic CementASTM C1202 Electrical Indication of Concrete’s Ability to Resist Chloride Ion PenetrationASTM C1231 Structural Testing of Drilled Concrete CoresASTM C1237 Flow of Mortar Using a Flow TableASTM C1240 Testing for Air-Entraining AdmixturesASTM C1260 Accelerated Mortar Bar Test for Alkali-Silica ReactionASTM C138 Unit Weight, Yield, and Air Content of ConcreteASTM C140 Density, Yield, and Air Content of MortarASTM C143 Slump of Hydraulic-Cement ConcreteASTM C143 Slump of Hydraulic-Cement ConcreteASTM C1512 Restrained Expansion of Mortar Bars Due to ASRASTM C156 Air Content in Freshly Mixed Concrete by Volumetric MethodASTM C157 Length Change of Hardened ConcreteASTM C157 Length Change of Hardened ConcreteASTM C1576 Testing Mortars for Air ContentASTM C1579 Early Age Shrinkage of Cementitious Mixtures Using Embedded Strain GaugesASTM C1585 Measurement of Rate of Absorption of Water by Hydraulic Cement ConcreteASTM C1602 Mixing Water for ConcreteASTM C1609 Flexural Performance of Fiber-Reinforced ConcreteASTM C1679 Method for Measuring Early-Age Shrinkage of Cementitious MixturesASTM C171 Sampling Fresh ConcreteASTM C185 Determination of Carbonation DepthASTM C185 Determination of Carbonation Depth in ConcreteASTM C185 Measurement of Setting Time of Hydraulic CementASTM C231 Air Content in Freshly Mixed Concrete by Pressure MethodASTM C231 Air Content of Freshly Mixed Concrete by Pressure MethodASTM C266 Time of Setting of Concrete Mixtures by Penetration ResistanceASTM C293 Flexural Strength of ConcreteASTM C293 Flexural Strength of Concrete Using Simple Beam with Third-Point LoadingASTM C293 Flexural Strength of Concrete Using Simple Beam with Third-Point LoadingASTM C293 Testing Concrete Beam Flexural StrengthASTM C31 Making and Curing Concrete Test SpecimensASTM C349 Compressive Strength of Hydraulic Cement MortarsASTM C39 Compressive Strength Testing of Concrete CylindersASTM C42 Obtaining and Testing Drilled Cores and Sawed BeamsASTM C469 Modulus of Elasticity and Poisson’s Ratio in ConcreteASTM C469 Static Modulus of Elasticity and Poisson’s Ratio of Concrete in CompressionASTM C494 Chemical Admixtures for ConcreteASTM C666 Resistance of Concrete to Rapid Freezing and ThawingASTM C78 Flexural Strength of ConcreteASTM C78 Flexural Strength of Concrete BeamsASTM C805 Rebound Number of Hardened ConcreteASTM C876 Half-Cell Potential of Steel in ConcreteBS 1881-121 Determination of Water Absorption of Hardened ConcreteBS 1881-203 Testing for Compressive StrengthBS 1881-208 Testing for Flexural StrengthBS 4550 Specification for Concrete TestingBS 4551 Testing of Concrete – Methods for Strength and DensityBS 812 Testing AggregatesBS 8500-1 Concrete – Part 1: Specification for Constituent MaterialsBS 8500-2 Concrete – Part 2: Specification for ConcreteBS EN 1015-11 Determination of Flexural and Compressive Strength of MortarBS EN 197-1 Cement StandardsBS EN 206 Specification for ConcreteBS EN 480-11 Admixtures for Concrete – Testing MethodsBS EN 934-2 Concrete AdmixturesEN 12390-10 Determination of Chloride Content in Hardened ConcreteEN 12390-2 Making and Curing Specimens for Strength TestsEN 12390-3 Compressive Strength of Test SpecimensEN 12390-5 Flexural Strength of Test SpecimensEN 12390-6 Tensile Splitting Strength of Test SpecimensEN 12390-7 Density of Hardened ConcreteEN 12390-8 Depth of Penetration of Water Under PressureEN 12620 Aggregates for ConcreteEN 12620 Aggregates for ConcreteEN 13039 Siliceous Sand for ConcreteEN 13055 Lightweight AggregatesEN 13286-47 Test Methods for Unbound and Hydraulically Bound MixturesEN 13670 Execution of Concrete StructuresEN 196-1 Determination of StrengthEN 196-3 Determination of Setting Times and SoundnessEN 196-6 Determination of FinenessEN 197-1 Cement Composition and SpecificationsEN 197-1 Composition, Specifications and Conformity Criteria for Common CementsEN 206-1 Concrete Specification, Performance, Production and ConformityISO 14001 Environmental Management in Concrete ProductionISO 15686-2 Service Life Planning of Concrete StructuresISO 1920-1 Sampling of Hardened ConcreteISO 1920-3 Sampling Fresh ConcreteISO 1920-4 Strength Testing of Concrete – Part 4: Strength by CompressionISO 1920-5 Determination of Tensile Splitting StrengthISO 1920-6 Flexural Strength Testing of ConcreteISO 1920-7 Determination of Density of Hardened ConcreteISO 1920-8 Determination of Water Absorption of Hardened ConcreteISO 1920-9 Determination of Freeze-Thaw ResistanceISO 21930 Sustainability in Building ConstructionISO 22112 Concrete Testing – Durability TestingISO 679 Determination of Strength of Hydraulic CementISO 679 Methods of Testing Cement – Determination of Strength

ASTM C642 Density, Absorption, and Voids in Hardened Concrete: Eurolabs Laboratory Testing Service

The testing of density, absorption, and voids in hardened concrete is a critical aspect of ensuring the quality and performance of this versatile building material. The American Society for Testing and Materials (ASTM) has developed Standard C642, which outlines the procedures for determining the density, absorption, and void content of hardened concrete.

International and National Standards

Standard C642 is part of the ASTMs comprehensive collection of standards related to concrete testing. This standard is widely adopted globally, with equivalent or similar standards in other countries. For example:

  • ISO 1920-3:2009 (International Organization for Standardization)

  • EN 12350-7:2012 (European Committee for Standardization)

  • TSE CEN/TS 12350-7:2015 (Turkish Standards Institution)

    • Standard Development Organizations

    The development and maintenance of standards such as ASTM C642 are the responsibility of standard development organizations. In this case, the American Society for Testing and Materials (ASTM) is responsible for ensuring that Standard C642 remains relevant and up-to-date.

    Why Standards Evolve and Get Updated

    Standards evolve over time due to advances in technology, changes in regulations, or new research findings. The purpose of updating standards is to ensure that they remain effective and relevant in their field. For example:

  • ASTM C642 has undergone revisions since its initial publication in 1942.

  • The most recent revision (2015) reflects the latest advances in testing equipment and methods.

    • Standard Numbers and Scope

    ASTM C642, Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, outlines the procedures for determining:

    1. Density of hardened concrete

    2. Absorption capacity of hardened concrete

    3. Void content of hardened concrete

    The standard is applicable to all types of hardened concrete, including structural, non-structural, and special concrete.

    Standard Compliance Requirements

    Compliance with ASTM C642 is mandatory in various industries, such as:

  • Construction: To ensure the quality and performance of concrete structures.

  • Transportation: To verify the durability and resistance of concrete pavements.

  • Energy Generation: To guarantee the integrity of concrete foundations for power plants.

    • The consequences of non-compliance can be severe, including damage to structures, loss of reputation, and financial penalties.

    Why This Test is Needed

    ASTM C642 testing is essential for ensuring the quality and performance of hardened concrete. The test provides critical information on:

    1. Density: Affects the weight and stability of structures.

    2. Absorption: Impacts durability and resistance to weathering and chemical attacks.

    3. Void content: Influences the mechanical properties of concrete.

    Business and Technical Reasons for Conducting ASTM C642 Testing

    Conducting ASTM C642 testing provides numerous benefits, including:

    1. Ensuring compliance with regulations and industry standards.

    2. Verifying the quality and performance of hardened concrete.

    3. Reducing costs associated with repairs, replacements, or structural modifications.

    4. Enhancing product safety and reliability.

    5. Improving market positioning and competitiveness.

    Consequences of Not Performing This Test

    Not conducting ASTM C642 testing can lead to:

    1. Substandard structures and compromised public safety.

    2. Financial losses due to repairs, replacements, or litigation.

    3. Damage to reputation and loss of customer confidence.

    Industries and Sectors that Require This Testing

    ASTM C642 testing is required in various industries, including:

  • Construction

  • Transportation

  • Energy Generation

  • Mining

    • This test is also essential for ensuring compliance with regulations and industry standards in these sectors.

    Risk Factors and Safety Implications

    Failing to conduct ASTM C642 testing can lead to:

    1. Structural failures and accidents.

    2. Environmental damage due to poor-quality concrete.

    3. Loss of reputation and financial penalties.

    Quality Assurance and Quality Control Aspects

    ASTM C642 testing is an essential aspect of quality assurance and control in the production and installation of hardened concrete.

    How the Test is Conducted

    ASTM C642 testing involves the following steps:

    1. Sample preparation: Concrete samples are obtained from the site or laboratory.

    2. Testing equipment: Standardized testing equipment, such as a vacuum chamber, is used to determine density and absorption.

    3. Measurement and analysis: The test results are measured and analyzed using specialized software.

    Testing Equipment and Instruments

    The following equipment is required for conducting ASTM C642 testing:

    1. Vacuum chamber

    2. Balance or scale

    3. Thermometer

    4. Hygrometer

    Sample Preparation Procedures

    Concrete samples must be prepared according to the standard, including:

    1. Sampling: Concrete cores are extracted from the site.

    2. Cutting and grinding: The cores are cut into smaller sections using specialized equipment.

    Measurement and Analysis

    The test results are measured and analyzed using specialized software, such as a digital balance or densitometer.

    Persuasive Testing with Eurolabs Expertise

    At Eurolab, we have extensive experience in conducting ASTM C642 testing. Our team of experts will ensure that your samples are tested accurately and efficiently, providing you with reliable results to support your business decisions.

    To learn more about our services or to request a quote, please contact us at insert contact information.

    Conclusion

    ASTM C642 testing is an essential aspect of ensuring the quality and performance of hardened concrete. By conducting this test, businesses can ensure compliance with regulations and industry standards, reducing costs associated with repairs, replacements, or structural modifications. At Eurolab, we have the expertise to conduct ASTM C642 testing accurately and efficiently, providing you with reliable results to support your business decisions.

    References

  • American Society for Testing and Materials (ASTM). (2015). Standard Test Method for Density, Absorption, and Voids in Hardened Concrete. ASTM C642.

  • International Organization for Standardization (ISO). (2009). ISO 1920-3:2009 - Concrete, mortar and cement - Determination of density - Part 3: Determination of void content by the vacuum method.

  • European Committee for Standardization (CEN). (2012). EN 12350-7:2012 - Testing concrete. Determination of density.

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