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Recommended Practice for Accelerated Strength Testing and Evaluation of Concrete for Road and Airfield Constructions

IRC 85:1983 provides recommended practices for accelerated strength testing and evaluation of concrete used in road and airfield constructions. It details procedures for accelerated curing, testing of compressive and flexural strength, and correlating accelerated test results with standard 7- and 28-day curing strengths. This standard is essential for engineers requiring early quality control and rapid assessment of concrete strength during construction.

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88Clauses Indexed
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1983Edition
Roads and Bridges IRC- Indian road congress Category
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What This Standard Covers

IRC 85:1983 provides recommended practices for accelerated strength testing and evaluation of concrete used in road and airfield constructions. It details procedures for accelerated curing, testing of compressive and flexural strength, and correlating accelerated test results with standard 7- and 28-day curing strengths. This standard is essential for engineers requiring early quality control and rapid assessment of concrete strength during construction.

Who Uses This Standard

  • Civil Engineers
  • Quality Control Engineers
  • Pavement Designers
  • Construction Supervisors
  • Materials Testing Laboratory Technicians
  • Road and Airfield Construction Project Managers
  • Research and Development Engineers in Concrete Technology

Key Topics Covered

Accelerated curing procedures for concrete specimens
Testing methods for compressive and flexural strength
Correlation between accelerated and standard curing strengths
Apparatus and equipment for accelerated curing
Specimen preparation and mould specifications
Evaluation of 7-day and 28-day concrete strength from accelerated tests
Quality acceptance criteria for cement concrete works
Laboratory and field application of accelerated strength testing
Statistical relationships and error estimation in strength evaluation
Handling and cooling of specimens post-accelerated curing
Mix design considerations for accelerated testing
Practical guidelines for site engineers

Table of Contents

1Scope

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2References

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3Working Principle of Accelerated Curing

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4Apparatus for Accelerated Curing

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5Procedure for Accelerated Strength Testing

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6Evaluation of 7 or 28-Day Strength

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7Correlation and Statistical Analysis

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8Specimen Preparation and Mould Requirements

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9Field Application and Practical Considerations

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10Quality Control and Acceptance Criteria

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Popular Questions About IRC 85

?What is the recommended procedure for accelerated curing of concrete specimens?

Detailed answer not available.

?How does accelerated strength testing correlate with standard 7-day and 28-day curing strengths?

Detailed answer not available.

?What apparatus is required for conducting accelerated strength tests in the laboratory and field?

Detailed answer not available.

?Can accelerated curing methods be applied on-site where electrical power is unavailable?

Detailed answer not available.

?What are the quality acceptance criteria for concrete strength based on accelerated testing?

Detailed answer not available.

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