Category:1006 Aggregate for Surfacing: Difference between revisions
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====1006.4.3.4 Deleterious Content==== | ====1006.4.3.4 Deleterious Content==== | ||
The percentage of deleterious substances in coarse aggregate shall be determined according to [[:Category:1001 General Requirements for Material#1001 | The percentage of deleterious substances in coarse aggregate shall be determined according to [[:Category:1001 General Requirements for Material#1001.4.5 Percent Other Deleterious Substances, Clay Lumps and Shale in Fine Aggregate|General Requirements for Material-Percent Other Deleterious Substances, Clay Lumps and Shale in Fine Aggregate]]. Where field determinations show a total deleterious content of 4.0 percent or less, including not more than 2.5 percent mud balls, the deleterious content is to be inspected visually. The sample is to be tested if visual inspection indicates more than 4.0 percent total deleterious material present in the sample. Source approval samples shall always be tested regardless of the content of deleterious material. | ||
===1006.4.4 Sample Record=== | ===1006.4.4 Sample Record=== | ||
The sample record shall be completed in SiteManager, as described in [[Automation Sec 3510]], and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in [[106.9 Reporting Test Results|Reporting Test Results]], are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab. | The sample record shall be completed in SiteManager, as described in [[Automation Sec 3510]], and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in [[106.9 Reporting Test Results|Reporting Test Results]], are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab. | ||
Revision as of 06:02, 8 August 2007
This guidance establishes procedures for the inspection, testing and acceptance of aggregate for surfacing.
1006.1 Procedure
Inspection, testing, and sampling will be governed by the instructions contained in General Requirements for Material.
Field tests required are as follows:
| TEST | Template | Template Description |
|---|---|---|
| Sieve Analysis | T27 | Sieve Analysis of Fine and Coarse Aggregate |
| Percent Deleterious | SAA001Ex* | NEWEST Deleterious 1006 C Aggregate |
| *Test Template numbers have been depicted with a generic ‘x’ as some templates are updated and the last letter in the template name may change. The most current template for a template sequence should contain ‘NEWEST’ at the beginning of the template name. | ||
Samples required for Laboratory tests are as follows:
- (a) Initial Evaluation.
1006.2 Acceptance
Acceptance is based on routine tests in the field to ensure compliance with Sec 1006. Samples are to be taken at destination or at the source of aggregate production by MoDOT inspectors at intervals of one per 1,500 tons.
1006.3 Records and Reports
All plant records shown in General Requirements for Material - Records and Reports shall be maintained. The aggregates shall be reported through SiteManager in accordance with Automation Section AS-3510 of this Manual.
1006.4 Laboratory Procedure for Sec 1006
1006.4.2 Types of Samples Tested
1006.4.2.1 Initial Approval Sample
Tests consist of specific gravity, absorption, and Los Angeles abrasion. The minimum time required for completion of tests is four working days from the date received. Test results and calculations shall be recorded through SiteManager.
1006.4.2.2 Source Approval Sample
Tests consist of sieve analysis, specific gravity, absorption, Los Angeles abrasion, and deleterious content. The minimum time required for completion of tests is four working days from the date received. Test results and calculations shall be recorded through SiteManager.
1006.4.2.3 Production Sample
Tests consist of sieve analysis and deleterious content. The minimum time required for completion of tests is three working days from the date received. Test results and calculations shall be recorded through SiteManager.
1006.4.3 Procedure
1006.4.3.1 Sieve Analysis
Aggregate shall be tested in accordance with AASHTO T 27.
1006.4.3.2 Specific Gravity and Absorption
Aggregate shall be tested according to AASHTO T 85 for Bulk Specific Gravity.
1006.4.3.3 Los Angeles Abrasion
Aggregate shall be tested in accordance with AASHTO T96.
1006.4.3.4 Deleterious Content
The percentage of deleterious substances in coarse aggregate shall be determined according to General Requirements for Material-Percent Other Deleterious Substances, Clay Lumps and Shale in Fine Aggregate. Where field determinations show a total deleterious content of 4.0 percent or less, including not more than 2.5 percent mud balls, the deleterious content is to be inspected visually. The sample is to be tested if visual inspection indicates more than 4.0 percent total deleterious material present in the sample. Source approval samples shall always be tested regardless of the content of deleterious material.
1006.4.4 Sample Record
The sample record shall be completed in SiteManager, as described in Automation Sec 3510, and shall indicate acceptance, qualified acceptance, or rejection. Appropriate remarks, as described in Reporting Test Results, are to be included in the remarks to clarify conditions of acceptance or rejection. Test results shall be reported on the appropriate templates under the Tests tab.