Using a Moisture Measurement System at Your Asphalt Plant ...

Sep 03, 2018 · The eventual quality of the roads we drive on start with consistency and quality at the asphalt plant. Excessive moisture in the aggregates can lead to serious issues with the mix.

Measuring moisture in asphalt production

have recently been updated to require producers to measure moisture continuously for the production of Level 2 asphalt (NF P 98 728). In the USA, NCAT (National Centre for Asphalt Technology) carried out an investigation into improving HMA (Hot Mix Asphalt) pro duction

Asphalt Plants - Center for Health, Environment & Justice

Center for Health, Environment & Justice P.O. Box 6806, Falls Church, VA 22040-6806 703-237-2249 [email protected] Asphalt Plants FactPack – P131


to make check tests of the asphalt received on the Project site, and if the asphalt is not in accordance with the certified analysis, he may reject the material. The asphalt required by these Specifications shall conform to the requirements of The Asphalt Institute for the type and grade shown below: Asphalt for Seal Coating CRS-2 or CRS-2P

Moisture In Asphalt Production | Agg-Net

In France, the asphalt standards have recently been updated to require producers to measure moisture continuously for the production of Level 2 asphalt (NF P 98 728). In the US, NCAT (National Centre for Asphalt Technology) carried out an investigation into improving hot-mix asphalt (HMA) production technologies and in their conclusions ...

Hot Mix Asphalt Plants - Emission Assessment Report

Hot Mix Asphalt Plants Kiln Dryer Stack Manual Methods Testing Asphalt Plant B, Clayton, North Carolina Volume 1 of 2 EPA 454/R-00-023a April 2000 Volume 2 of 2 EPA 454/R-00-023b April 2000 Hot Mix Asphalt Plants Truck Loading and Silo Filling Instrumental Methods Testing Asphalt Plant C, Los Angeles, California EPA 454/R-00-024 May 2000

Section 00745 - Asphalt Concrete Pavement - Statistical ...

Hot Mix Asphalt Concrete - A hot plant mixed, uniformly coated mixture of asphalt cement, graded Aggregate and additives as required. Level 1 ACP - ACP for use in applications with very low traffic and only limited exposure to trucks. Level 2 ACP - ACP for use in applications with low traffic volumes and low volume truck traffic.

How to Calculate Asphalt Tonnage | Hunker

Measure the length, width and depth in inches of the space you want to fill with asphalt. For example, you may have a driveway 150 inches long, 100 inches deep and 5 inches deep.

Aggregate Segregation - Pavement Interactive

Aggregate Segregation. Based on several articles (Kennedy et. al., 1987 [2]; Brown and Brownfield, 1988 [3]; Williams et. al., 1996a [4] and 1996b [5]; Khedaywi and White, 1996 [6]; AASHTO, 1997 [7]) the commonly accepted qualitative definition of aggregate segregation is “the non-uniform distribution of coarse and fine aggregate components within the asphalt mixture.”

Can You Use Concrete to Level Asphalt? | Home Guides | SF Gate

Resurfacing asphalt paths or driveways with concrete, often referred to as whitetopping, provides an effective and cost-efficient method of leveling out deteriorated asphalt. It can save you up to ...

Marshall Test Method: Everything You Need to Know - Gilson Co.

Marshall stability and flow test values, density, and air voids in the mix and the mineral aggregate are all used for evaluation of trial mixtures of lab-mixed, lab-compacted (LMLC) asphalt mixtures. Marshall stability and flow tests can also monitor the production of the asphalt mixture using plant mix, laboratory-compacted (PMLC) samples.

Level Measurement | Process Instrumentation | Siemens Global

A new level of experience in all of your applications. Built on global experience in the field, Siemens provides a complete range of level measurement devices for every application. With the knowledge that no single technology can address the needs of all industrial challenges, Siemens offers a full range of contacting and non-contacting instrumentation for continuous and point leve

Asphalt Pavement Construction | Asphalt Institute

Note paragraph 3.1 from the standard reads: 3.1 Samples obtained in accordance with the procedure given in this practice may be used to measure pavement thickness, density, resilient or dynamic modulus, tensile strength, Marshall or Hveem stability, or for extraction testing, to determine asphalt content, asphalt properties and mix gradation.

Asphalt Calculator - How much asphalt do you need?

Free online asphalt calculator to help you estimate how much asphalt you need for your construction project - road, private driveway, car park, etc. Output in weight and volume: tons, tonnes, cubic yards, cubic meters, etc. Basic information about asphalt (tarmac) and tips on calculating how much you need.

Best Practices Handbook on Asphalt Pavement Maintenance

with asphalt pavement. Small and spiral bound, the manuals are designed for easy use in the field. They identify low-, medium-, and high-severity levels of each pavement distress with photos. Distresses are categorized by their cause: environmental, traffic, or construction. The complete set (including a third,


The noise theory (sound loudness, and sound power level) is explained, legal implications are discussed, and a sound test program and the use of certain charts to predict noise levels due to asphalt plant burner systems are outlined. Methods of controlling noise exposure and the procedure to follow are described.

Continuous Level Measurement Sensors for Powders and Bulk ...

Apr 16, 2019 · Continuous Level Sensors and Remote Inventory Management. Products & Solutions Using a Variety of Level Technologies: Monitor Technologies is a leading provider for a wide range of solutions in continuous level measurement and remote inventory management systems for the storage of powders & bulk solids in bins, silos, vessels, etc.

Asphalt Production and Oil Refining - Pavement Interactive

Asphalt. Asphalt is produced through the refining of petroleum. It is a viscous adhesive that, along with aggregate, forms HMA pavement surfaces. In this article we will follow the crude oil as it leaves the seagoing tanker at the Marine Terminal at US Oil and Refining Company in Tacoma, WA and becomes asphalt.

Asphalt Concrete - an overview | ScienceDirect Topics

Asphalt concrete is often touted as being 100% reclaimable or recyclable and, as a result, very little asphalt concrete is actually sent for disposal in landfills. Asphalt recycling on a large scale (in-place asphalt recycling or asphalt recycling performed at a hot mix plant) and asphalt recycling on a smaller scale are used.


Do not begin daily plant operations unless the contractors’ Certified Asphalt Concrete Plant Technician (Level 2 or Level 3) is at the plant. When the plant is in operation, have a Certified Asphalt Concrete Plant Technician at the plant or jobsite.

Model 575S Submersible Level Transmitter

The Drexelbrook Model 575S is an intrinsically safe submersible pressure transmitter ideal for liquid level measurement in Class I Div. 1 hazardous locations.


a Certified Asphalt Technician. Management Representative The Management Representative is responsible for all aspects of production and control required by the Certified Hot Mix Asphalt Producer Program at each Certified Plant. Certified Asphalt Technicians A Certified Asphalt Technician is a Producer or Consultant employee who

Heavy Construction Equipment Noise Study Using Dosimetry and ...

Criterion Level Response Upper Limit A 90 dB 5 dB 90 dB Slow 140 dB OSHA Permissible Exposure Level (PEL) Dosimeter 4 Weighting Threshold Level Exchange Rate Criterion Level Response Upper Limit A 80 dB 5 dB 85 dB Slow 140 dB OSHA Action Level identified. Dosimeters were used to acquire the dynamic noise levels of the heavy


* Asphalt, Oxidized (CAS # 64762-93-4) is a carcinogen. CONSULT THE NEW JERSEY DEPARTMENT OF HEALTH AND SENIOR SERVICES HAZARDOUS SUBSTANCE FACT SHEET ON ASPHALT, OXIDIZED. IDENTIFICATION Asphalt is a blackish-brown solid, semi-solid or liquid, depending on the formulation or mixture of Asphalt used. Asphalt fumes are produced during the ...

OSHA Technical Manual (OTM) | Section III: Chapter 5 - Noise ...

Aug 15, 2013 · For unusual measurement situations, refer to the manufacturer's instructions and appropriate ANSI standards for guidance in interpreting instrument accuracy. Other types of sound level meters also exist but do not meet ANSI requirements for the Type 2 or Type 1 designation. These meters, which are often modestly priced, can be useful pre ...

Estimates of Air Emissions from Asphalt Storage Tanks and ...

II I A Plant A t w-e I I I I I A Plant H 0 Plant I x Plant K 0 Plant M + Plant N - Plant P-Plant 0l Plant J m Plant S 1 0.1 2. 1 ° C = (° F-32)*5/9 I/ I I A I. Temperature (°F2) 1000 FIGURE Oxidized Asphalt Vapor Pressure Data in 2.

When to Use What Grade of Asphalt and Why

plant mixed paving mixtures where temperature and mixing time can be carefully controlled and in hot asphalt penetration of coarse stone (macadam) layers. The softer grades are also used in some seal coat or surface treatment work, but in such cases the application of aggregate must be made immediately and before the asphalt chills.

Asphalt Paving Design Guide - APAO

The Asphalt Pavement Association of Oregon is a non-profit trade association representing contractors and associated firms. APAO was formed in 1969 by a small group of asphalt paving contractors to develop improved specifications and products. The Association and its members are dedicated to promoting asphalt pavements by developing pro-


of voids in an asphalt mixture is probably the single most that affects performance throughout the life of an asphalt 1 pavement. The voids are primarily controlled by asphalt content,compactive effort during construction,and additional compaction under traffic. The density requirements and the methods of measuring density vary considerably

Measuring Content and Volume of Bins, Tanks and Silos

A weight and cable-based sensor is cost-effective and provides precise and continuous level measurement. For bins measuring approximately 180 ft in height, a bob-style sensor can be employed. However, the sensor is also employed in smaller bins measuring less than 40 ft in height. The principle of operation for bob-style sensors is quite simple.

State of the Art Study on Aging of Asphalt Mixtures and Use ...

C. L. Shattuck, “Measurement of the resistance of oil asphalts (50-60 Pen) to changes in penetration and ductility at plant mixing temperatures,” Proceedings of Association of Asphalt Paving Technologists, vol. 11, pp. 186–203, 1940.

VDOT Paving Manual: A Pocket Guide

asphalt plant mix) however, these are generally outside the scope of a paving project. Therefore, the best immediate solution would probably be to cover the milled area with asphalt and continue the paving operation. Then, notify District Bridge, Maintenance of the issue so that a permanent fix can be considered.

7 Main Types of Level Sensing Methods – How do they differ?

Jul 27, 2017 · Liquid level sensors have been around for decades, in markets such as food and beverage, industrial, medical and domestic, printing, agriculture, automotive and white goods for leak detection or level measurement. We often wonder why customers choose one technology over the other and it is a common question we are asked.

Asphalt Paving 101 Online Course | AsphaltPro Magazine ...

Training is key to improve safety, uptime and quality on your asphalt paving jobs. In fact, an effective training program can improve your bottom line up to 10 percent a year! Equip your crew with the knowledge they need to succeed. Check out our upcoming course, Asphalt Paving 101. In this course, your crew will learn:

Point Level Measurement | Level Measurement | Siemens Global

For our customers, running a plant can seem like a huge mission. Siemens level measurement provides what every "captain" - or rather, plant manager - needs. Watch our video and join the evolution of level measurement!