Asphalt Pavement Construction | Asphalt Institute

The Asphalt Institute strongly endorses the use of RAP in asphalt mixtures. RAP has a history of positive performance. The specifying agency or owner will set the limit for RAP content. Almost all state highway departments now allow the use of RAP. A few restrict its use in wearing courses; even fewer (one or two) prohibit its use completely.

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Mastic Asphalt: A Wearing Course – ForCivilEngg

Mastic Asphalt: A Wearing Course June 4, 2019 tonmoy2015 Transportation Mastic Asphalt is a mixture of Bitumen, Limestone, Sand and Coarse Aggregate which are heated together in a sequential manner to form a homogeneous suspended composite material and laid on as desired.

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Asphalt wearing course optimization for road traffic noise ...

15-10-2017· Asphalt wearing course optimization for road traffic noise ... air void content of porous asphalt mixtures mainly depends on the compaction following temperature. Double layer porous asphalt surfaces with different gradation are good to tune the frequency of maximum absorption and to bring it to lower frequencies than with a ...

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SPECIFICATIONS FOR BONDED WEARING COURSE

The Bonded Wearing Course consists of a warm polymer modified asphalt emulsion bond coat followed immediately with an ultra-thin hot mix asphalt wearing course. The tack coat is spray applied immediately prior to the application of the wearing course to produce a durable wearing surface that can be opened to traffic.

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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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Laboratory investigation of OGFC-5 porous asphalt ultra ...

The test temperature also has a significant effect on the interlayer shear strength of OGFC-5 asphalt wearing course, and an increased temperature leads to a decrease in shear strength. When using SHMAE as tack coat, the interlayer shear strength of OGFC-5 asphalt wearing course is higher than that with SAME tack coat.

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Method Statement for Asphalt Paving Works | Asphalt ...

Wearing course shall be placed in one layer above the bituninous base course and one coat of tack coat shall be applied between bituminous base course and wearing course. ... Aggregate ingredient shall be heated to a temperature between 160°C to 179°C. Asphalt cement shall be heated to a temperature between 146°C and 156°C at mixing time.

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How can I determine the appropriate curing time for ...

Two issues must be considered. the type of binder (asphalt cement or liquid asphalt), and the pavement temperature after finishing compaction process. if the binder is asphalt cement, then as the ...

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34553-03 Design Guide - PA Asphalt Pavement

For example, an asphalt classified as a PG 64-22 means that the asphalt will meet the high temperature physical property requirements of the pavement up to a temperature of 64ºC (147…F) and the low temperature physical property requirements of the pavement down to -22ºC (-8ºF).

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GUIDANCE NOTES APPLICATION OF POLYMER MODIFIED STONE ...

4.1 Compared with conventional wearing course (WC) material using Pen 60/70 binder, the capital cost of PMSMA10 is higher owing to the high binder content and the use of a superior bitumen (i.e. polymer modified bitumen), cellulose fibre and hydrated lime. Considering its better high-temperature stability, PMSMA10 is recommended

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Asphalt wearing course optimization for road traffic noise ...

15-10-2017· Asphalt wearing course optimization for road traffic noise ... air void content of porous asphalt mixtures mainly depends on the compaction following temperature. Double layer porous asphalt surfaces with different gradation are good to tune the frequency of maximum absorption and to bring it to lower frequencies than with a ...

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The study of temperature changes on asphalt concrete ...

The use of Asphalt Concrete Wearing Course (AC-WC) on the road pavement has been increased in accordance with the road infrastructure development. However, …

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What is Asphalt - EAPA

Binder course. Binder courses are designed to withstand the highest shear stresses that occur about 50 – 70 mm below the asphalt surface. The binder course is therefore placed between the surface course and base course to reduce rutting by combining qualities of stability and durability.

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(PDF) INFLUENCE OF TEMPERATURE ON ASPHALT …

For wearing courses, the temperature was determined at the depth of 2 cm, for the b inding layer at 6 cm, and for the base course at 10 cm under the pavement surface.

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Ultrathin Bonded Wearing Course Checklist

Ultrathin Bonded Wearing Course Checklist 4. Asphalt Storage Tank The asphalt storage tank is capable of keeping the asphalt temperature within the required specification range. Hot-Mix Plant The plant is properly calibrated, and the scales have been checked. The plant has been certified by the agency. The plant meets all environmental

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Asphalt Concrete Receiving, Placement and Testing ...

Asphalt Concrete Receiving Inspection | Wearing and Binder Course: The hot mix asphalt concrete material shall not be accepted unless it is covered with tarpaulins until unloaded. The hot mix asphalt using the conventional bitumen, shall have a temperature between …

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Hot Mix Asphalts 101 - New Jersey

Stone Matrix Asphalt Open Graded Friction Course Dense Mix. Hot Mix Asphalt Mixture Design Objectives. ... • Used as a wearing course (e.g., SMA) • Mix design methods: – AASHTO R46-08, Designing Stone Matrix Asphalt ... both the high and low temperature performance

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Main Roads Western Australia

“asphalt wearing courses” is that part of the pavement upon which the traffic travels including any dense graded asphalt course immediately below a course of open graded asphalt. ... The temperature of the mixed asphalt shall be measured and recorded …

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GUIDANCE NOTES APPLICATION OF POLYMER MODIFIED STONE ...

4.1 Compared with conventional wearing course (WC) material using Pen 60/70 binder, the capital cost of PMSMA10 is higher owing to the high binder content and the use of a superior bitumen (i.e. polymer modified bitumen), cellulose fibre and hydrated lime. Considering its better high-temperature stability, PMSMA10 is recommended

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Stone Mastic Asphalt - Civil Engineering

There are three major types of asphalt surfacing, characterized by a mixture of bitumen and stone aggregate. ... and wearing course. ... The oven temperature for performing the drain down test should be at the mixing temperature or the mixing temperature plus 15 C. Thus, an oven temperature of 1750 C was used for the test.

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The study of temperature changes on asphalt concrete ...

The use of Asphalt Concrete Wearing Course (AC-WC) on the road pavement has been increased in accordance with the road infrastructure development. However, …

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Wearing course versus asphalt: costs and benefits - HIM

The costs and benefits of wearing courses differ per application. For example, wearing courses are relatively more expensive than asphalt. After all, the material cost of asphalt is low; virtually all of the Dutch road network has been paved for that reason. Bridges and other spans, on the other hand, require light weight solutions with anti-slip properties, in which wearing courses provide ...

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The study of temperature changes on asphalt concrete ...

The use of Asphalt Concrete Wearing Course (AC-WC) on the road pavement has been increased in accordance with the road infrastructure development. However, there are many road defects occurs because of improper material mixing design and mistakes during construction. One of the requirements in material mixing is the precision of temperature, so that aggregate and asphalt strongly bonds.

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Resistance of Fine Graded Asphalt Concrete Wearing Course ...

The specimen is an asphalt concrete plate with the width of 30 cm, the length of 30 cm, and the thickness of 5 cm. The asphalt concrete used as a specimen is fine graded Asphalt Concrete Wearing Course (ACWC) with the asphalt content of 6.7%. The aggregate mixture of ACWC has gradation as shown in Table 1, while the

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Hammaker East | » FB-3 Modified Wearing Course

FB-3 Modified Wearing Course. FB-3 Modified Wearing Course, or Flexible Base, is intended for use on existing streets and roadways. This proprietary material is a multi-purpose, ambient temperature asphalt can be used as either a binder or wearing course and requires no chip seal to seal the surface.

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Go Green Micro Paving Asphalt, Asphalt Wearing Course ...

Go Green Micro Paving Warm Mix Asphalt is a new type eco-friendly warm mix asphalt wearing course material, mainly used for high grade pavement preventive maintenance and slightly pavement distress corrective maintenance, it can also used for paving new road, which has anti-skid, reduce noise, anti-fogging and environmental friendly features, at the same time, it can effectively improve the ...

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Section 180 - VicRoads

Wearing course asphalt shall not be placed when the majority of the area to be paved has a surface temperature of less than 10°C. Asphalt mixes with polymer modified binder shall not be placed when the majority of the area to be paved has a surface temperature less than 15°C.

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Section 407 - VicRoads

The level of the top of each asphalt course shall not differ from the specified level by more than 15 mm for intermediate and base courses and 10 mm for wearing course. Where a uniform thickness of new asphalt pavement construction is specified, the mean thickness of a lot of asphalt shall be not less than the combined thickness of all asphalt courses specified in Clause 407.24 or shown on the ...

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Bituminous Surface Treatments - Pavement Interactive

Asphalt Emulsion. Today, asphalt emulsions are more commonly used. An emulsion consists of an oil suspended in water. In this case, the asphalt cement is the oil component. A surfactant (also called an emulsifying agent) needs to be added in order to make the oil and water mix.Having the asphalt suspended in water allows the placing temperature for a BST to be significantly lower than for a ...

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Method Statement for Asphalt Paving Works – Civil …

Method Statement for Asphalt Paving Works are given below: 1. Scope: The scope of work of this method statement is to describe the responsibilities of personnel involved, execution procedure, safety factors and documents to be recorded for Asphalt Paving Works. 2. Relevant Process/Specifications: Tender Specifications 3. Responsibility: ADVERTISEMENTS: The Construction Manager/Project …

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