Bitumen E traction Using Trichloroethylene


Bitumen extraction test is conducted to determine the percentage of bitumen present in an asphaltic pavement This test is important because various pavement properties such as durability compatibility resistance to various defects and failure such as ravelling rutting bleeding etc depend upon the content of bitumen present as the binder for the aggregates

Types of Bituminous Materials in Construction - Uses and

Oil sands slurry produced in the Slurry Preparation Plant SPP contains about 50-55 sand and less than 10 bitumen The purpose of Extraction is to recover the bitumen portion while rejecting the heavy solids This is achieved through a simple water-based gravity separation process most of which

Bitumen Asphalt Extraction - Pavertrend Asphalt Hot

For ODOT lab testing use trichloroethylene or alternate solvent approved by the Laboratory Contractors may use any solvent that is determined to perform adequately 1038 05 Preparation of Sample and General Requirements for weighing Place mixture in a large flat pan and dry to constant weight in an oven at a maximum temperature of 230 oF 110

PDF Effect of Extraction Residue on the Properties of

and cyclopentaneand toluene and suggested cyclopentane as the best solvent Bitumen recovery using cycl o-pentane as the solvent reached 90 by a single stage extraction at a solvent to bitumen ratio of over 4 By a three-stage extraction the bitumen recovery can reach above 95 using a solvent to bitumen ratio of 1 Using


The reflux extractor determines the percentage of bitumen in a paving mixture using hot solvent extraction Available in 1000g and 2000g versions The Excel Clean HD is a cost effective biodegradable citrus based solvent and provides excellent performance Also known as a great replacement for trichloroethylene and other chemical solvents

Effect of Extraction Residue on the Properties of Asphalt

Asphalt Extraction Solvent EnTron-AE Safely replace trichloroethylene TCE and methylene chloride for asphalt extraction with EnTron-AE EnTron-AE is an n-propyl bromide nPB based solvent which is safer to use and more environmentally friendly then the chlorinated solvents typically used in asphalt extraction applications

Bitumen Extraction Test - Introduction Apparatus Procedures

EPA s Health Assessment Document for Trichloroethylene 4 Uses The main use of trichloroethylene is in the vapor degreasing of metal parts 1 Trichloroethylene is also used as an extraction solvent for greases oils fats waxes and tars a chemical intermediate in the production of other chemicals and as a refrigerant 1

St John s NL

using the extraction equipment applicable to the particular method The asphalt binder content is calculated by difference from the mass of extracted aggregate moisture content if determined and mineral matter in the effluent binder-solvent solution The bitumen content is expressed as a mass percent of moisture-free mixtures

Evaluation of Solvents for Extraction of Residual Asphalt

Asphalt results in a smoother and more durable surface than a bitumen-sealed road Solvent Extraction Solvent extraction the oldest of the three test methods uses a chemical solvent trichloroethylene or toluene to remove the asphalt binder from the aggregate

Asphalt Extraction Solvent Reliance Specialty Products

EXTRACTION OF BITUMINOUS MIXES Modified AASHTO T164 Method A 1 Scope 1 1 This method of test is used for quantitative determinations of bitumen in hot-mixed paving mixtures and pavement samples for specification acceptance service evaluation control and research

CHEMICAL SAFETY REPORT - European Commission

Bitumen Extraction Solvent Trichloroethylene Recycler Apparatus Find Complete Details about Bitumen Extraction Solvent Trichloroethylene Recycler Apparatus Trichloroethylene Recycler Trichloroethylene Recycler Apparatus Solvent Recycler from Testing Equipment Supplier or Manufacturer-Hangzhou Civit Instrument Equipment Co Ltd

Asphalt Extraction Solvent Solvent Extraction Of Asphalt

A comprehensive search on the Web of Science database was conducted using as key words bitumen extraction bitumen recovery and chemical risk assessment The search was restricted initially to literature later than 1996 but older works were also considered as important references

Asphalt Extraction and Recovery Procedures

Sep 15 2019· Determination of Bitumen content in mix by Bitumen Extraction at Project Site Bitumen extraction test is most important test in Road Construction Project as it mostly gives assurance of bitumen content in mix and the Quality of mix on which you can rely The Bitumen extraction test should be done at the time of placing of bitumen mixes on road


It is an excellent choice as a safer replacement for hazardous solvents for dissolving bitumen such as methylene chloride and trichloroethylene — and our EnSolv -EX is just as efficient and effective Like other asphalt extraction solvent solutions EnSolv -EX works to break down the bitumen in asphalt


Automatic bitumen extractor Controls asphalt bituminous mixture testing equipment Enter now Used for separation and extraction of bitumen by use of perchloroethylene or trichloroethylene solvents and sieving for the separation of filler by centrifuge action and for the recovery of solvent material

US5053118A - Bitumen extraction from asphalt pavements

During asphalt binder extraction and recovery procedure asphalt binder was dissolved in the solvent by soaking asphalt mixture in the solvent in which trichloroethylene TCE was normally used The RAP which was washed with solvent was centrifuged and filtered to separate fine aggregate


USE OF NORMAL PROPYL BROMIDE SOLVENTS FOR EXTRACTION AND RECOVERY OF ASPHALT CEMENTS M Stroup-Gardiner and J W Nelson INTRODUCTION While the need for using solvent extraction methods for determining asphalt content has declined significantly with the growing acceptance of the ignition oven there are times when solvent extractions are still

Automatic bitumen extractor Asphalt bituminous mixture

Evaluation of Solvents for Extraction of Residual Asphalt from Aggregates C A CrPIONE R R DAvrsoN B L BuRR C J GLOVER AND J A BULLIN When highway cores and hot mixes are extracted several percent of the asphalt frequently remains on the aggregate A variety of solvents were evaluated for their ability to remove this material

Bitumen extraction and recovery in road industry A global

extraction using different methods and solvents such as trichloroethylene methylene chloride or n-propyl bromide This method does not require calibration factors and the aggregate and binder properties can be determined post-extraction

Trichloroethylene - epa gov

For extracting the bitumen from the asphalt trichlorethylene is indispensable on the basis of DIN EN 12697 For the REACH Authorization Use of Trichloroethylene as Extraction Solvent for Bitumen in Asphalt on 21 September 2015 ECHA s two expert committees released their final opinion proposing a review period of 7 years

Asphalt Binder Extraction Protocol for Determining Amount

Materials that are bound together with bitumen are called bituminous materials The use of bituminous materials were initially limited to road construction Now the applications have spread over the area of roof construction for industrial purposes carpet tiles …


modified base binder are also submitted to one of the extraction recovery methods more specific to the method using centrifuge with trichloroethylene 2 2 Experimental Procedures The PmB-Hs are prepared in the lab by mixing the corresponding amounts of bitumen and SBS at 180°C for 1 hour


This exposure assessment is addressing the Use of Trichloroethylene as Extraction Solvent for Bitumen in Asphalt Analysis The following figures show the extraction machines used in asphalt analysis so called asphalt analyser and the general working pr inciple of asphalt analysis In the following sections where relevant reference

Bitumen Extraction Solvent Trichloroethylene Recycler

The use of trichloroethylene will most likely be banned in the near future There is a need to use a less hazardous and non-chlorinated solvent for this purpose Results of several investigations have indicated that the solvent n-Propyl Bromide appears to be a feasible alternative to trichloroethylene for use in this application Collins-Garcia

Asphalt extraction trichloroethylene asphalt recycling machine

US5053118A US07 546 887 US54688790A US5053118A US 5053118 A US5053118 A US 5053118A US 54688790 A US54688790 A US 54688790A US 5053118 A US5053118 A US 5053118A Authority US United States Prior art keywords solvent procedure alicyclic hydrocarbon bitumen cyclohexane Prior art date 1990-07-02 Legal status The legal status is an assumption and is not a legal conclusion