If a plant produces 300 tonnes of asphalt per hour at 6% moisture, it will be using 1,200 litres of fuel per hour to dry the aggregate before it is heated up to the correct temperature. If the moisture content then changed from 6% to 5% without the dryer being adjusted for 1h, that would equate to 180 litres of fuel being wasted in that 60min ...

A plant scales calibration Form QC-2 (see Section 12) and/or certification by the Department of Agriculture or a certified scale company will suffice for either the initial check or for a periodic check, provided the date of the certification is within the time frame noted above for asphalt binder, aggregate scales and weigh bridges. A single ...

With decades of proven experience as a premier asphalt plant manufacturer with a reputation for building high-quality equipment, supported by world-class service, Astec is the ideal partner to our asphalt plant customers. The complete line of Astec asphalt mixing plants, and its range of capacities and features, gives you the choices and ...

The belt scale should be inspected and calibrated (go through the calibration process to verify proper function prior to startup). An accurate belt scale results in a quality mix. Finally, check all electrical switches, …

There are four main steps in setting up a portable asphalt plant. Prepare the site; Erect the equipment; Install electrical cables and plumbing; and. Test and calibrate equipment. 1. Prepare the Site. After selecting the site location, take a few things into consideration before setting the plant.

IS : 3066 - 1965. 14.4 Mixer — The plant shall include a batch mixer of the twin shaft pugmill type capable of producing a uniform mix when mixing the maximum dryer output of aggregate. If not enclosed, the mixer box shall be equipped with a …

4.1 Asphalt binder content results may be affected by the type of aggregate and binder in the mixture. A calibration factor for the asphalt binder content must be established for each mix design. Certain aggregate types may result in an unusually high calibration factor and erroneous gradation results due to aggregate breakdown.

155 Asphalt Plant Check List . ... cold feed system shall be capable of diverting aggregate flow from each bin for calibration purposes. 3.9.2. Each bin shall be equipped with low-level indicators. ... 3.18 Additional Requirements for Batch Plants 3.18.1. Aggregate Bin Scales: Scales shall be provided for weighing each bin

Belt-Way is a proven leader in the manufacture of in-motion weighing solutions in the aggregate industry. Our customers find Belt-Way the clear choice when equipping their plants with conveyor belt scales. Our durable modular scale design provides accuracy in the harshest of environments. Used with our unique Remote Display our customers have ...

Please note: It is extremely important to highlight that this is a very safe and proven way to avoid having the plant personnel trying to handle cumbersome pipes and high-temperature A.C. that formerly was always accomplished by pumping into a tanker truck and taking the truck to a truck scale to check and measure (weigh) to determine the calibration.

Scope: 1.1. To insure the asphalt plant is capable of producing a homogeneous mix of asphalt and aggregates that meet Alabama Department of Transportation specifications. NOTE: This plant checklist and contractor's check (not more than 30 days old) is to be submitted to ALDOT's Central Laboratory for further processing and submittal to the ...

STATEWIDE INSPECTION GUIDELIST . Asphalt Plant / Lab . Check the incoming aggregate tickets or bills of lading to ensure the aggregates being used in the mix are …

Having lab equipment in proper calibration gives you a better chance at proper measurements and testing results. Dan Ridolfi of Lastrada Partners, El Dorado Hills, California, stated the calibration and maintenance of lab equipment is just as important as the calibration and maintenance of the asphalt and aggregate equipment at the plant.

8 aggregate VFD bins; Aggregate Scale; 2 recycle bin over 1 recycle belt scale; 2 mineral filler (volumetric or gravimetric) 1 Additive; 1 Asphalt metering system (temperature compensated) Calibration for all scales, pumps and feeders: operator selectable automatic feeder calibration multiple material calibration for bins

Belt-Way products are widely used in the asphalt industry for measuring the production and blending of different materials. The use of a belt scale is the primary form of measurement as our customers use our Belt-Way conveyor belt scales to measure the amount of aggregate used in the production of their asphalt.. Asphalt plants are …

Weighing plays an important role in the Asphalt and Concrete plants throughout the United States. Central Carolina Scale provides testing and calibration to many asphalt and concrete batching locations throughout the Raleigh Durham area. The company also provides a high quality selection of replacement parts for fast repair and minimal down time.

2. Suspend a minimum of ten standard test weights for asphalt plants or twenty standard test weights for PCC plants from the weigh hopper then calculate (if necessary) and enter the scale target weight in Column 2. 3. Record the scale reading (test weights plus material, if any) in Column 3. 4.

b. Check mixing time; c. Check operations of weigh bucket and scales. 5. Drum Mixer Plants: a. Determine aggregate moisture content; b. Calibrate the weigh bridge on the charging conveyor. 6. Control Charts: Maintain QC data and charts (updated daily) for all QC Sampling and Testing and make available upon demand. Provide the following …

Study with Quizlet and memorize flashcards containing terms like For a uniform output from the asphalt plant, what must occur at the input? A. Aggregate temperature must be consistent. B. Aggregate measurement must be accurate. C. Aggregate moisture content should be 2%. D. Aggregate texture should be rounded., Fine aggregate misdirected …

3.1.4 Calibration Overview. The purpose of the plant calibration is to ensure that the plant accurately proportions the asphalt and aggregate. The belt scale, test weights and cold feed bins are part of the aggregate system and require calibration.

The Material Plant Quality Program (MPQP) provides procedures to approve proportioning material plants that produce materials for Caltrans construction projects according to the MPQP Manual and Caltrans specifications. The following material plants require approval (but are not limited to): HMA batch and continuous. Asphalt rubber binder.

aggregates to be used in the asphalt mixture. The Technician is required to examine the calibration charts of the cold feed systems to be aware of the production …

a) Plant Random Scale Checks (6/27/05) Random weighting of trucks for checking scales should be a minimum of once per day. Should questions come up, the District Engineer of Tests can check scales as often as necessary to solve the problem. Should truck and plant scales be outside +/-1%, the first such load of mix is allowed to be placed.

Equip the asphalt plant with an electronic weigh system that: 1) has an automatic printout, 2) is certified every six months by an approved certified scale technician, and 3) meets monthly comparison checks with certified truck scales as specified in 320-3.2.4. Weigh all plant produced hot mix asphalt on the electronic weigh system,

Equipment Calibration (XLSM) ESB Design Ware v1-23 (XLSM) Film Thickness (XLSX) Hotbins (XLSX) LTS (XLSX) Oders and Releases (XLSX) Plant Summary HMA-WMA (XLSX) PTM-757 Worksheet (XLSX) Random (XLSX) TR448 (2-15) (XLSM) Scale Check Batch Plant. Scale Check (XLSX) Drum Plant. Agg-Rap Belt (XLSX) Asphalt …

C4.2 : Asphalt Plants C4.2.1 Batch Plant The major components of a batch plant are the cold-feed system, asphalt supply system, aggregate dryer, mixing tower, and emission-control system. A typical batch plant is depicted in Figure 4.1 the major plant components are shown in Figure 4.2. The batch plant tower consists of a hot elevator, a

If a plant runs 300 tons of asphalt per hour at 6% moisture, it will be using 317 gallons per hour of fuel to dry the aggregate before it is heated up to the correct temperature.

2. Increase specific loads with intervals and record the readings on monitor. 3. This method is used for the balance scales of aggregates, bitumen and filler.

aggregate delivery as displayed on the plant controller. Where there is no separate display of wet aggregate usage during an aggregate only check-run, change the input aggregate moisture by a nominal amount (say 3 %) and note the appropriate change to the indicated aggregate delivery rate. Moisture is computed as a percent of the dry aggregate,

The scales used for plant calibration must meet Section 9150104 BELT SCALES ON COLD FEEDERS Plants will check each individual belt scale, including RAP, at its high range and The purpose of the plant calibration is to ensure that the plant accurately proportions the asphalt and aggregate The belt scale, test weights and cold feed bins …

Product value $26.50 per ton. Scale inaccuracy -200 pounds. Lost annual revenue $344,500. With that kind of revenue loss in mind, let's break down the five components of a good scale maintenance program, starting with the use of a state-licensed service provider. It's important to understand that the state weights and measures organization ...

460.3.1.2 Drum-mix Plants. The major components of a drum-mix plant are the cold-feed system, binder supply system, drum mixer, surge or storage silos, and emission control system. Drum mix plant. Components of a drum mix plant. The cold feed bins are used to proportion the aggregate that is delivered to the drum.

1. Group Suggests Protecting the Plant with Greasing. The Ammlub device from Group is mounted directly on the plant's lubrication points. All asphalt production businesses want to minimize the cost of ownership.

It becomes an enormous, if not almost impossible task, to get a well calibrated and "dialed-in" plant if we aren't certain our aggregate and RAP weighbridges are in proper alignment. These weighbridges are the primary determining factor of a successful plant calibration and achieving your desired res…See more on theasphaltpro

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ATT-17, Part II 3.4 Calibration of Asphalt System 3.4 Calibration of Asphalt System The calibration of the asphalt system of a dual belt scale plant is similar to a single belt scale plant. The weight per revolution or unit volume is determined and then the asphalt content is checked by diverting asphalt back to the storage tank.

Turn on pulsars/rotors. Run AC Pump in reverse for about 2 minutes, then kill it along with the pulsars/rotors. Leave ALL augers running until the plant is cleaned out. Kill everything in reverse ...

Calibrate the weigh bridge on the charging conveyor. Control Charts: Maintain QC data and charts (updated daily) for all QC Sampling and Testing and make available upon …