Asphalt road composition and process of making same

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US3907582A - Asphalt road composition and process of ...

An asphaltic pavement course composition is disclosed, as well as process for making same. The composition utilizes, as the major ingredient, the residue from a refuse incinerator, which residue contains less than 5 percent, preferably less than 2 percent, by weight of ferrous material. The low-ferrous content residue is combined in an asphaltic road base course composition or other asphaltic ...

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Asphalt road composition and process of making same ...

An asphaltic pavement course composition is disclosed, as well as process for making same. The composition utilizes, as the major ingredient, the residue from a refuse incinerator, which residue contains less than 5 percent, preferably less than 2 percent, by weight of ferrous material.

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Asphalt road composition and process of making same

Complete Patent Searching Database and Patent Data Analytics Services.

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US4415702A - Rubberized asphalt composition and process ...

A rubberized asphalt composition which comprises a moisture-curing diene series liquid rubber, asphalt and aggregates, and a process for producing same. Liquid rubber having a molecular weight of from 500 to 50,000 and having an isocyanate group or an isocyanate group blocked by phenol or acetoxime as a functional group at the terminals of the molecule is preferably utilized.

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How is Asphalt Made? A Look Inside the Manufacturing Process

Sep 26, 2018  Asphalt dates back as far as 2,600 B.C when the Egyptians used the composite material to waterproof their mummies. Other ancient civilizations adapted it for highways and irrigation systems. These days, it adorns almost 94% of American roads. What Is Asphalt Made Of? Asphalt composition is around 5% asphalt cement and 95% aggregate.

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How is Asphalt Made? A Look Inside the Manufacturing Process

Sep 26, 2018  Asphalt dates back as far as 2,600 B.C when the Egyptians used the composite material to waterproof their mummies. Other ancient civilizations adapted it for highways and irrigation systems. These days, it adorns almost 94% of American roads. What Is Asphalt Made Of? Asphalt composition is around 5% asphalt cement and 95% aggregate.

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Chapter 2 Asphalt and Asphalt Paving Materials

tures, asphalt may be liquified by applying heat, dissolving it in solvents, or emulsifying it. Asphalt is a strong cement that is readily adhesive and highly waterproof and durable, making it particularly useful in road building. It is also highly resistive to the actions of most acids, alkalis, and salts. Covering more than 90 percent of the

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How asphalt cement is made - material, used, processing ...

The drum-mixing process heats and blends the aggregate with asphalt all at the same time in the drum mixer. 7 When the mixing is complete, the hot-mix is then transported to the paving site and spread in a partially compacted layer to a uniform, even surface with a paving machine.

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Asphalt Paving Operation - Purdue University

Asphalt Paving Operation. The subject of this term project was an asphalt paving process utilizing a paving machine and 20 tons capacity tri-axle trucks. The location of the process was at the corner of Main and Madison in Greenwood ( South of Indianapolis ). The project is being run by the Reith-Riley Construction Company.

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Information Summary Asphalt Grindings / RAP (Recycled ...

-Asphalt millings may be taken directly to and used by road asphalt manufacturing plants for direct incorporation into asphalt (bituminous ... is performed when the material is sufficiently hot to make the asphalt ... "Our overall position is the same as described in the 9/27/2001 letter from Lauri Kemper of

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Types of Road Construction Materials CK

Apr 17, 2021  When used for road construction, asphalt comes in the form of a composite material known as asphalt concrete. This road making material is 70% asphalt and 30% aggregate. Asphalt is 100% recyclable, which makes it one of the most popular materials for making roads. 4. Concrete

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STANDARD CONSTRUCTION SPECIFICATIONS FOR ASPHALT

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

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Advantages of Asphalt - EAPA

Advantages of Asphalt. Roads fulfil a crucial function in modern society, providing increased mobility for people, goods and services. They have played a key role in European progress and continue to drive socio-economic growth. Asphalt road surfaces offer many benefits, including cost efficiency, reduction in noise pollution and comfort.

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8 innovations in road surface products and techniques - On ...

Mar 01, 2013  Here are eight innovations in road-surface products and roadbuilding techniques that are driving the future of road construction. 1. Noise-reducing asphalt: “There have been a few cost-benefit analyses done that show that using asphalt to reduce noise levels makes more sense than constructing sound wall barriers,” says Jim Bird, director of ...

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Pavements and Surface Materials

The Asphalt Institute in College Park, Maryland has issued a “Asphalt Thickness and Design,” manual that suggests that asphalt thickness for roads be based on the following three factors: 1. Traffic weight and number of vehicles that will use the road 2. Strength of proposed sub base, and, 3. Pavement material to be used. Pavement Width

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Asphalt concrete - Wikipedia

Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century.

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Asphalt Pavement Recycling - California

Introduction. Benefits of Recycling Asphalt Recycling of asphalt pavement can save money for local governments and other purchasers, create additional business opportunities, save energy when recycling is done on site, conserve diminishing resources of aggregates and petroleum products, and help local governments meet the goal of reducing disposal by 50 percent by the year 2000.

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How To Recycle And Reuse Asphalt Limitless Paving Concrete

Jun 27, 2019  This means that roads built with recycled asphalt are safer and longer-lasting. Using recycled asphalt pavement saves the taxpayers in the U.S. between $1.8 and $2.5 billion annually. Recycled asphalt is cheaper to produce than new asphalt, making the refurbishing of damaged roads more affordable for the taxpayers.

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Asphalt Binder - an overview ScienceDirect Topics

James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 2016 10.3.1 Asphalt Binders. The asphalt binder, sometimes referred to as the asphalt cement binder or the asphalt cement, is an essential component of asphalt concrete—it is as the name implies the cement that holds the aggregate together.The asphalt binder is a co-product of the petroleum-refining system that

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What Is the Process for Asphalt Road Construction?

Jan 19, 2020  1. The asphalt contractor will inspect the pavement to determine the cause of the damage. Without addressing the reason, the overlay will suffer the same type of damage. 2. The contractor will probably take several core samples to check

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Basics of Asphalt Emulsions - Asphalt Emulsion ...

Asphalt emulsion is a combination of three basic ingredients, asphalt, water, and small amount of an emulsifying agent. In the same process, these components are introduced into a mechanism known as a colloid mill, which shears the asphalt into tiny droplets. The emulsifier, which is a surface-active agent, keeps the asphalt droplets in a ...

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Pavements and Surface Materials

The Asphalt Institute in College Park, Maryland has issued a “Asphalt Thickness and Design,” manual that suggests that asphalt thickness for roads be based on the following three factors: 1. Traffic weight and number of vehicles that will use the road 2. Strength of proposed sub base, and, 3. Pavement material to be used. Pavement Width

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What is Hot Mix Asphalt Pavement? - Asphalt Pavement ...

Asphalt pavement refers to any paved road surfaced with asphalt. Hot Mix Asphalt (HMA) is a combination of approximately 95% stone, sand, or gravel bound together by asphalt cement, a product of crude oil. Asphalt cement is heated aggregate, combined, and mixed with the aggregate at

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Types of Road Construction Materials CK

Apr 17, 2021  When used for road construction, asphalt comes in the form of a composite material known as asphalt concrete. This road making material is 70% asphalt and 30% aggregate. Asphalt is 100% recyclable, which makes it one of the most popular materials for making roads. 4. Concrete

Get price

STANDARD CONSTRUCTION SPECIFICATIONS FOR ASPHALT

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

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Asphalt Paving Design Guide

Asphalt Paving Design Guide prepared for the Asphalt Pavement Association of Oregon 5240 Gaffin Road, SE Salem, OR 97301 by R.G. Hicks Department of Civil Engineering Oregon State University Corvallis, OR 97331 Paul Curren Pavement Engineering Inc. Petaluma, CA 94954 and James R. Lundy Department of Civil Engineering Oregon State University

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Asphalt mixtures emission and energy consumption: A review ...

May 01, 2017  The production process for the most common material for paving roads, i.e., hot mix asphalt, consumes energy to heat the asphalt and aggregates at high temperatures. For many modified asphalts mixtures, the modification process requires continuous agitation and heating of the asphalt

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Hot Mix Vs. Cold Mix Asphalt: What’s The Difference?

Mar 06, 2020  At the same time, its heat-absorbing ability allows it to melt ice and snow quickly to keep the pavement safer. Quick Cool Down – While hot mix asphalt is heated and poured at over 300 degrees, it cools down quickly to allow shorter installation process. This keeps road closures to a minimum as the pavement can be used in only a couple of hours.

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Asphalt Binder - an overview ScienceDirect Topics

James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 2016 10.3.1 Asphalt Binders. The asphalt binder, sometimes referred to as the asphalt cement binder or the asphalt cement, is an essential component of asphalt concrete—it is as the name implies the cement that holds the aggregate together.The asphalt binder is a co-product of the petroleum-refining system that

Get price

Asphalt Pavement Recycling - California

Introduction. Benefits of Recycling Asphalt Recycling of asphalt pavement can save money for local governments and other purchasers, create additional business opportunities, save energy when recycling is done on site, conserve diminishing resources of aggregates and petroleum products, and help local governments meet the goal of reducing disposal by 50 percent by the year 2000.

Get price

Road Pavement Design Guide - Kent County Council

• Hot rolled asphalt roadbase has been discontinued. Whilst a design based on DBM50 is the norm, information has been provided so Contractors can offer other thickness of other asphalt materials. (Note: The term asphalt is now used for all bitumen bound materials) • Hot Rolled Asphalt wearing course has been substituted with Thin Surfacing

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What Is the Difference Between Blacktop Asphalt? Hunker

Mar 02, 2019  The materials that go into blacktop and asphalt to make them durable and maintainable are exactly the same. However, the way that they come together makes two slightly different products. A blacktop road and a gray asphalt driveway may look alike and certainly perform the same function when driving over the materials, but they are slightly ...

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Asphalt batch plant operation and components Hot mix ...

Oct 07, 2017  Asphalt plants. The main components and operation of asphalt batch mix plant. It is to produce HMA known as Asphalt Batching Plant and hot mix plant. It blends together aggregates and bitumen to produce the hot mix paving material. The aggregates here can be a single sized material. It can be a combination of different grades / sizes of materials.

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