Welcome to BNA company!

No. 1688, Gaoke East Road,Shanghai, China.

Call us anytime

0086-21-58386256

Opeening Time

Mon-Sat: 8.30-18.00

One Thing: Aggregate Moisture Content Testing - NPCA

Collect a representative aggregate sample from the stockpile in accordance with ASTM D75, "Standard Practice for Sampling Aggregates." The minimum aggregate sample weight needed for the test depends on the nominal maximum size aggregate of the aggregate being tested. These minimum sample weights are outlined in "Table 1: Sample Size for ...

SAMPLING OF AGGREGATES FOP FOR AASHTO T 2 (11) …

AGGREGATE WAQTC AASHTO T 2 T2_short Aggregate 1-1 October 2011 SAMPLING OF AGGREGATES FOP FOR AASHTO T 2 (11) Scope This procedure covers sampling of coarse, fine, or a combination of coarse and fine aggregates (CA and FA) in accordance with AASHTO T 2. Sampling from conveyor belts, transport units, roadways, and stockpiles is covered. Apparatus

aggregate sampling from stockpile - daikichisushi.fr

Mar 16, 2020· Stockpile sampling. Perhaps the most common manual sampling method for aggregates is stockpile sampling. There are different approaches to collecting a sample in this fashion, but all methods exhibit the same issues to some degree or another. Stockpile sampling methods involve collecting material directly from the product pile. 1.

Coarse Aggregate Source Approval Policy

The CML shall sample a representative quantity of aggregate from a stockpile at the quarry. Enough material shall be obtained so a split sample remains (untested) for subsequent examination and testing by ODOT if deemed necessary. A copy of the test report shall be submitted by the CML directly to the office of the Materials Division Engineer.

Procedures for Aggregate Inspection 06172019

figure 24: typical sample patterns – left show distribution of sampling sites through the stockpile if ten sample points are taken from a radial stacker stockpile- right shows distribution of sampling sites through the stockpile if

WSDOT Errata to FOP for AASHTO R 90

aggregates (CA and FA) in accordance with AASHTO R 90-18. Sampling from conveyor belts, transport units, roadways, and stockpiles is covered. Apparatus • Shovels or scoops, or both • Brooms, brushes, and scraping tools • Sampling tubes of acceptable dimensions • Mechanical sampling systems: normally a permanently attached device that ...

02b - Aggregate Sampling

Aggregate Sampling Obtainingunbiasedfieldsamplesfromstockpilesis notoriouslydifficult,butitcanbedonewithcareand attentiontodetail.Abucketloadermakestheprocess

Aggregate Stockpiling and Handling

• Build stockpile with fixed height conveyors • Build stockpiles with trucks, loaders or dozers. 15 Segregation Segregation - Stacker Conveyor. 16 Segregation Segregation - Size and Shape •Size ranges •Coarse ... • Changes in the aggregate properties will cause changes

MB1- Sampling of Stockpiles

sample as described in paragraph 4.2.1.1 above. 4.2.2 Sampling with pick and shovel 4.2.2.1 From the sides of a stockpile Using shovels, dig a groove from the top to the bottom of the stockpile. (See note 6.2) Remove all the material that has collected at the bottom of the groove as a …

Inspection & Sampling Procedures for Fine & Coarse …

"Method of Sampling Stockpile Aggregate." SIZE OF ORIGINAL SAMPLES The key to any sample program is to obtain a representative sample. A standard sampling method must be followed to obtain uniform samples. 2-2 The following is a list of recommended minimum sizes of composite

SAMPLING OF AGGREGATES FOP FOR AASHTO T 2 Scope …

aggregates (CA and FA) in accordance with AASHTO T 2-91. Sampling from conveyor belts, transport units, roadways, and stockpiles is covered. Apparatus • Shovels or scoops, or both • Sampling tubes of acceptable dimensions • Mechanical sampling systems: normally a permanently attached device that allows a

Aggregate QC/QA User Manual - All Items

When sampling aggregate base material, the sample is obtained from a stockpile, conveyor belt, or any other location approved by the Department according to established procedures and taken to the laboratory. When sampling aggregate base material, follow the sampling procedures listed in Exhibit C.

Seal Coat and Surface Treatment Manual: Stockpiling Aggregate

Ideally, any sample taken from any area of the stockpile should contain a representative sampling of the complete range of sizes. Degradation. The breaking apart of the aggregate particles.

Florida Method of Test for Sampling Aggregates

"5.9. Sampling from a Stockpile of Fine Aggregate Using a Sampling Tube (Alternate Method) Samples should be taken at random locations in the stockpile: three in the lower third, two in the middle, and one just below the upper third. (See Note 3) Overlying material on the sampling area should be cleared. The sampling personnel should

ASTM D75 / D75M - 19 Standard Practice for Sampling Aggregates

Scope. 1.1 This practice covers sampling of coarse and fine aggregates for the following purposes: 1.1.1 Preliminary investigation of the potential source of supply, 1.1.2 Control of the product at the source of supply, 1.1.3 Control of the operations at the site of use, and. 1.1.4 Acceptance or …

STOCKPILE SAMPLING Coarse Aggregate Stockpiles Coarse ...

STOCKPILE SAMPLING Coarse Aggregate Stockpiles Coarse aggregates are recommended to be sampled using ITM 207. A summary of the procedure includes the following: 1) Locate the area of the stockpile from which hauling will begin. 2) Using a front-end loader, dig into the stockpile and set aside a small pile of 10 to 15 t of material. This should be done in the same manner as if a truck is being ...

GUIDELINES FOR SAMPLING OF AGGREGATE MATERIALS

SAMPLING OF AGGREGATE MATERIALS 1. SCOPE 1.1 The purpose of these guidelines is to outline procedures and requirements for sampling of granular, coarse, and fine aggregate materials for quality assurance testing. 2. GENERAL 2.1 Whether stockpile, delivery, or road sampling has been chosen, the procedure for obtaining a sample must be strictly ...

HOW TO COLLECT AGGREGATE SAMPLE FROM STOCKPILE ...

Aggregate Sampling from Stockpile Aggregate Sampling from Stockpile. Using a front end-loader, dig into the stockpile and set aside small pile of 10 to 15 ton of material. When forming the small pile, the loader bucket must be kept as low as possible and roll the material from the bucket rather than dumping the material.

Sampling Aggregate for Bituminous Mixtures, Surface ...

during sampling. 3.2.3.4 Do not use the aggregate on the surface of the stockpile as a part of the sample. 3.2.3.5 In each instance, dig a small trench or hole into the pile approximately 1 ft. deep and take the sample from the innermost part of the hole. 3.2.3.6 Take samples from these 3 points at several places around the stockpile and combine

Standard Practice for Sampling Aggregates

4.3.3 Sampling from Stockpiles or Transportation Units— Avoid sampling coarse aggregate or mixed coarse and fine aggregate from stockpiles or transportation units whenever possible, particularly when the sampling is done for the purpose of determining aggregate properties that may be dependent upon the grading of the sample. If circumstances

SAMPLING AGGREGATE, FLEXIBLE BASE, AND STONE RIPRAP

SAMPLING AGGREGATE, FLEXIBLE BASE, AND STONE RIPRAP TXDOT DESIGNATION: TEX-400-A MATERIALS & TESTS DIVISION 3 – 5 EFFECTIVE DATE: APRIL 2021 3.2.16 Repeat Section 3.2.4 to 3.2.15 for each additional location as determined from Section 3.2.3. 3.3 Sampling procedure for aggregate from completed stockpiles using a shovel. 3.3.1 Use this procedure to sample completed …

Aggregate Handling Best Practices - scasphalt.org

Batching Samples • Fractionate each aggregate to No. 8 sieve –Recommended by Asphalt Institute. We do not like this method due to potential for fines to segregate • Fractionate each aggregate to No. 200 –If stockpile aggregates do not match what quarry expects to …

Standard Method of Test for Reducing Samples of …

Fine Aggregate—Samples of fine aggregate that are drier than the saturated surface-dry condition ... or by treating as a miniature stockpile as described in Method C. If the use of Method B or Method C is desired, and the sample does not have free moisture on the particle surfaces, the sample may be moistened to achieve this condition ...

AGGREGATE BLENDING, ABSORPTION, & SPECIFIC GRAVITY

Aggregate Blending, Absorption & Specific Gravity 15 Fine Aggregate Specific Gravity • ASTM C128 – Dry aggregate – Soak in water for 24 hours – Spread out and dry to SSD – Add 500 g of SSD aggregate to pycnometer of known volume • Pre-filled with some water – Add more water and agitate until air bubbles have been removed

Calculating Stockpile Capacity

Calculating Stockpile Capacity: Once the minimum storage capacities which will assure maximum mill output are known, the appropriate stockpile configuration must be determined. Stockpiles fall into two general categories: conical and elongated. Conical Stockpiles The conical stockpile is the simplest and easiest to analyze. The total stockpile capacity is given by: 3.14 (Tan A)R³ D/3000 ...

Sampling Aggregates | Ontario Sand, Stone & Gravel Association

Sampling fine aggregate from a stockpile is somewhat simpler since it has a lower tendency to segregate: Insert sampling shovel at base and move vertically to obtain sample. These three steps are repeated at select points around the pile. A second method of sampling fine aggregate involves using a sampling tube. The tube, which is about 1 ¼ in ...

834.1 Sampling and Testing

the finished product conveyor belt or stockpile. Obtaining samples from the belt discharge is acceptable if the full production stream can be obtained with sufficient rapidity and safety. Production samples are taken during aggregate crushing and stockpile operations and can only be conducted or witnessed by HTCP certified QC personal.

The Art of Sample Prepping for Coarse Aggregate Sieve ...

Coarse aggregate samples must be representative of the aggregate and should be obtained as described in ASTM D75 or AASHTO T 2. After samples are collected from a stockpile, conveyor belt, bin, or other sources, it's time to prepare the specimens for splitting procedures.

PERFORMANCE EXAM CHECKLIST SAMPLING AGGREGATE …

AGGREGATE WAQTC FOP AASHTO R 90 (18) 17_R90_pr_18 Aggregate 3-12 Pub. October 2021 . Stockpile Method A – (Loader sampling) 17. Loader operator directed to enter the stockpile with the bucket at least 150 mm

Solved 5.10 Samples of coarse aggregate from a stockpile ...

Transcribed image text: 5.10 Samples of coarse aggregate from a stockpile are brought to the laboratory for determination of specific gravities. The following weights are found: Mass of moist aggregate sample as brought to the laboratory: 5,298 g Mass of oven dried aggregate: 5,216 g Mass of aggregates submerged in water: 3220 g Mass of SSD (Saturated Surface Dry) Aggregate: 5,227 g …

Chapter 3 - Aggregate Sampling, Testing, and Quality ...

Aggregate Sampling, Testing, and Quality Assurance 31 reducing samples of aggregates to testing sizes. Their specification includes standard proce- dures for sampling aggregates from a roadway, flowing stream, conveyor belt, stockpile, or truck to ensure …

Basic Aggregates/Sampling Flashcards | Quizlet

When sampling from a stockpile, you must obtain your composite sample from at least _____ elevations/locations of the stockpile. 3. When using a sampling tube on fine aggregates, you must obtain portions from _____ different locations. 5 or more. You must sample from a minimum of _____ locations when sampling from a conveyor belt. ...

2 METHODS OF AGGREGATE SAMPLING - CivilBlog.Org

STOCKPILE SAMPLING Coarse Aggregate Stockpiles. Coarse aggregates are recommended to be sampled using the following procedure. 1) Locate the area of the stockpile from which hauling will begin. 2) Using a front-end loader, …

Sampling of Aggregates

In sampling stockpiles of fine aggregate (3/8 in. (minus 9.5 mm)), the outer layer, which may have become segregated, should be removed and the sample taken from the material beneath. The use of sampling tubes has proven to be satisfactory. Sampling tubes approximately 1 …

Sampling Aggregates | Ontario Sand, Stone & Gravel Association

STOCKPILE SAMPLING Coarse Aggregate Stockpiles. Coarse aggregates are recommended to be sampled using the following procedure. 1) Locate the area of the stockpile from which hauling will begin. 2) Using a front-end loader, dig into the stockpile and set aside a small pile of 10 to 15 t of material.

Aggregate Sampling Inspector Programmed Instruction …

associated with aggregate sampling techniques, and to present acceptable aggregate sampling methods supported by West ia Division of Highways' policies and procedures. The information contained herein is intended to prepare you for the written examination for certification as an Aggregate Sampling Inspector.