Worksheet for Sieve Analysis of Fine and Coarse Aggregate AASHTO T 11 and AASHTO T 27 Flh Fhwa Dot Form

Understanding the Worksheet for Sieve Analysis of Fine and Coarse Aggregate

The Worksheet for Sieve Analysis of Fine and Coarse Aggregate, governed by AASHTO T 11 and AASHTO T 27, serves as a critical tool in the construction and engineering fields. This worksheet is designed to facilitate the systematic evaluation of aggregate particle size distribution, which is essential for ensuring the quality and performance of concrete and asphalt mixtures. By adhering to these standards, professionals can ensure compliance with industry regulations and enhance the reliability of their materials.

Steps to Complete the Worksheet for Sieve Analysis

Completing the Worksheet for Sieve Analysis involves several key steps:

• Gather the necessary materials, including aggregate samples and sieves of specified sizes.
• Weigh the aggregate sample before sieving to obtain the initial mass.
• Perform the sieve analysis by passing the aggregate through the sieves, starting from the largest to the smallest.
• Record the mass of the aggregate retained on each sieve after sieving.
• Calculate the percentage of material passing through each sieve and compile the data in the worksheet.
• Analyze the results to determine the aggregate's gradation and compliance with specified limits.

Legal Use of the Worksheet for Sieve Analysis

The legal validity of the Worksheet for Sieve Analysis is paramount in ensuring that the results are accepted by regulatory bodies and clients. To be considered legally binding, the worksheet must be completed accurately and signed by qualified personnel. Digital signatures can enhance the legitimacy of the document, provided they comply with relevant eSignature laws, such as the ESIGN Act and UETA. Ensuring that all data is recorded meticulously will help safeguard against disputes regarding material quality.

Key Elements of the Worksheet for Sieve Analysis

Several key elements must be included in the Worksheet for Sieve Analysis to ensure comprehensive documentation:

• Identification of the aggregate sample, including source and date of collection.
• Details of the sieves used, including sizes and specifications.
• Initial mass of the aggregate sample and mass retained on each sieve.
• Calculations for cumulative percentages passing through each sieve.
• Signatures of the technician performing the analysis and the supervising engineer.

How to Obtain the Worksheet for Sieve Analysis

The Worksheet for Sieve Analysis can be obtained through various sources, including industry publications, professional organizations, and online resources. Many state departments of transportation and engineering associations provide standardized worksheets that comply with AASHTO T 11 and T 27. It is advisable to use the most current version of the worksheet to ensure compliance with the latest industry standards.

Examples of Using the Worksheet for Sieve Analysis

Practical applications of the Worksheet for Sieve Analysis include:

• Evaluating the suitability of aggregates for specific construction projects.
• Quality control in the production of concrete and asphalt mixtures.
• Compliance testing for regulatory requirements in construction contracts.
• Research and development of new materials and mixtures in laboratory settings.