Mitigation of moisture damage in asphalt concrete: Testing techniques and additives/modifiers effectiveness

The property of aggregate has a significant effect on the performance of asphalt mixture because of its high proportion. Asphalt mixture prepared by some kind of aggregate cause the inadequate compaction problem, which results in moisture damage due to its large air void. Limestone manufactured sand is considered as one of the useful solution to overcome the compaction problem. In this paper, fine aggregate is substituted by different proportion of limestone manufactured sand (LMS). The effect of replacement ratio on volume properties and pavement performance is studied. The results show that the limestone manufactured sand can improve the pavement performance and is benefit to the compaction of andesite asphalt mixture. Furthermore, this research also provided some valuable parameters for guiding the pavement construction in the future.

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Improving Resistance to Moisture Damage of Asphalt Concrete Using Bamboo Ash as Void Filler

International Journal of Constructive Research in Civil Engineering ◽

10.20431/2454-8693.0701001 ◽

2021 ◽

Vol 7 (1) ◽

Keyword(s):

Asphalt Concrete ◽

Moisture Damage

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Assessment of the influence of compaction method on asphalt concrete resistance to moisture damage

Construction and Building Materials ◽

10.1016/0950-0618(93)90052-e ◽

1993 ◽

Vol 7 (3) ◽

pp. 149-156 ◽

Cited By ~ 9

Author(s):

El Hussein H. Mohamed ◽

A.O. Abd El Halim ◽

Gerhard J. Kennepohl

Keyword(s):

Asphalt Concrete ◽

Moisture Damage ◽

Compaction Method

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New Material Solutions for Road Surface Construction Made of WMA

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1020.811 ◽

2014 ◽

Vol 1020 ◽

pp. 811-816 ◽

Cited By ~ 2

Author(s):

Jarosław Rajczyk

Keyword(s):

International Law ◽

Asphalt Concrete ◽

New Product ◽

Waste Recycling ◽

Waste Production ◽

New Material ◽

Concrete Testing ◽

Surface Construction ◽

By Products

The need for modernization and adjustment of existing road infrastructure to European Union requirements will result in the need for processing thousands tones of waste. The amount of waste received from road repairs and road demolitions, as well as technological by-products in Poland may be estimated at the level over 2.5 million tones, which is almost 2% of all waste production. Construction waste recycling is truly justified in this case, together with waste management according to the provisions of national and international law. One of such products is dust generated as a side effect of stone processing in a Casey mine in Ireland. Laboratory tests of the new material compositions with the use of waste from this mine not only realize the general aims of economic and ecological assumptions, but also allow increasing quality of a new product which is an asphalt-concrete composite. In order to check the properties of the use of a filler in a form of Hornfels Ireland powder there was conducted a series of special tests on the asphalt concrete testing the wearing course. Hornfels Ireland powder produced as a waste material of an aggregate processing in Cassey Quarry is a useful material, which may be successfully used as a component in a process of WMA production.

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Effect of Filler Type on the Durability of Asphalt Concrete Mixes

International Journal of Current Engineering and Technology ◽

10.14741/ijcet/v.8.3.36 ◽

2018 ◽

Vol 8 (3) ◽

Author(s):

Ahmed M. Mohammed ◽

Aqeel T. Fadhil

Keyword(s):

Portland Cement ◽

Asphalt Concrete ◽

Design Method ◽

Hydrated Lime ◽

Moisture Damage ◽

Mineral Filler ◽

Stone Dust ◽

Limestone Dust ◽

Asphalt Concrete Pavement ◽

Lime Stone

Mineral filler is the finest fraction of aggregate (smaller than 75 gm) used in the production of asphalt paving mixed. It is essential for producing a mixture that is dense, cohesive, durable, and resistant to water penetration. In spite of the fact that filler is very small proportion of the total aggregates in the mix, due to its rather high affinity for asphalt, the changes in the type of the filler can cause the paving mixture to perform satisfactorily during the design life or deteriorate rapidly under the effect of traffic and environmental impact. The objective of this study is to investigate the effect of mineral filler types (three types, limestone dust, Portland cement and hydrated lime) in the durability of asphalt concrete mixture. To achieve the objective of this study, Marshall mix design method was utilized to produce asphalt concrete mixes at their optimum asphalt content. The mixes were, then, tested to investigate their durability properties including moisture damage and fatigue characteristics. The results indicated that the mixes prepared with hydrated lime have superior resistance to moisture damage in comparison with Portland cement and lime stone dust. On the other hand, the mixes prepared with Portland cement type of filler showed better resistance to the fatigue failure of asphalt concrete pavement.

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