Geotechnical Properties of Recycled Crushed Brick in Pavement Applications

Arulrajah, Arul; Piratheepan, J.; Aatheesan, T.; Bo, Myint Win

doi:10.1061/(asce)mt.1943-5533.0000319

Cited by 156 publications

(53 citation statements)

References 8 publications

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“…The sustainable development demanded by Humanity at this stage requires a clear reduction of that figure. Reusing coarse recycled aggregates (CRA) from construction and demolition waste (C&DW) has been successfully implemented in road pavements 2,3 . In concrete production it is common practice today as a partial replacement of natural aggregates since various studies have demonstrated that its performance is satisfactory [4][5][6][7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

A new method to determine the density and water absorption of fine recycled aggregates

2013

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The construction industry keeps on demanding huge quantities of natural resources, mainly minerals for mortars and concrete production. The depletion of many quarries and environmental concerns about reducing the dumping of construction and demolition waste in quarries have led to an increase in the procuring and use of recycled aggregates from this type of waste. If they are to be incorporated in concrete and mortars it is essential to know their properties to guarantee the adequate performance of the end products, in both mechanical and durability-related terms. Existing regulated tests were developed for natural aggregates, however, and several problems arise when they are applied to recycled aggregates, especially fine recycled aggregates (FRA). This paper describes the main problems encountered with these tests and proposes an alternative method to determine the density and water absorption of FRA that removes them. The use of sodium hexametaphosphate solutions in the water absorption test has proven to improve its efficiency, minimizing cohesion between particles and helping to release entrained air.

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Section: Introductionmentioning

confidence: 99%

A new method to determine the density and water absorption of fine recycled aggregates

2013

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“…Poon and Chan (2006a) investigated the possibility of using recycled concrete aggregates and crushed clay brick as aggregates in unbound subbase materials, and the results showed that the substitution of crushed clay brick increases the optimum moisture content and decreases the maximum dry density and California bearing ratio (CBR) values. Arulrajah, Piratheepan, and Aatheesan (2011) tested the size distribution, density, compaction properties, CBR, Los Angeles abrasion loss and organic content of recycled crushed brick and proved that applying recycled crushed brick in the subbase is entirely feasible.…”

Section: Introductionmentioning

confidence: 99%

Performance of cement-stabilised crushed brick aggregates in asphalt pavement base and subbase applications

Hou

Zou

et al. 2015

Road Materials and Pavement Design

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Demolished brick is one of the main components of construction waste, and its recycling for use in asphalt pavement base and subbase is a relatively new technique. This work studies the performance of cement-stabilised crushed brick aggregates (CSCBA) and proves the applicability of crushed brick aggregates (CBA) in asphalt pavement base. A scanning electron microscope (SEM), X-ray diffractometer (XRD) and Fourier infrared spectrum (FIS) were used to investigate the micro performance of CBA. Six types of CSCBA were designed with the following CBA contents: 0%, 20%, 40%, 60%, 80% and 100%. The properties of CSCBA were investigated, including compaction properties, compressive strength, split strength, compressive resilient modulus, shrinkage performance and fatigue performance. SEM was also used to analyse the strengthening mechanism of CSCBA. This study's results are useful for engineering practice, particularly for identifying (a) the properties of CSCBA and (b) the upper limits of CBA applicability for asphalt pavement base and subbase for low-grade highway.

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“…Ülkemizde ise 2012 yılında çıkan 6306 sayılı 'Afet Riski Altındaki Alanların Dönüştürülmesi Hakkında Kanun' ile riskli bulunan yaklaşık 6-7 milyon yapının yıkılması planlanmaktadır. YYA malzemelerin geri dönüştürülerek tekrar kullanılması, çevreye olan etkileri açısından, inşaat endüstrisi tarafından üretilen katı atıkların depolama maliyetlerini düşürmesi, atık depolama gereksinimini azaltması, inşaat için zeminden elde edilen doğal kaynakların kullanımını azaltması, atık malzemelerin daha çok değerlendirilmiş olması, enerji israfını azaltması ve sürdürülebilirliğin artması gibi olumlu etkiler yapabilmektedir [1][2][3][4][5][6].…”

Section: Introductionunclassified

“…Son yıllarda YYA'nın karayolu temel ve alt temellerindeki performansı ile ilgili bazı çalışmalar mevcuttur [3][4][5][6]. Yapılan çalışmalarda genel olarak YYA'nın karayolu temel ve alt temellerinde kullanmak için bir alternatif olabileceği kabul edilmiştir [1][2][3][4][5][6].…”

Section: Introductionunclassified

Yapim Yikim Atiklarinin Yol Temelleri̇nde Kullanilabi̇li̇rli̇ği̇ni̇n İncelenmesi̇

Bağrıaçık¹,

Demir²

2018

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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ÖZGranüler malzemeler dolgular, istinat duvarları, yol temelleri ve demir yolu balastı gibi inşaat mühendisliği uygulamalarında sıkça kullanılmaktadır. Ancak gün geçtikçe artan doğal kaynakların azalması ve madencilikle ilgili düzenlenen çevresel yönetmelikler, doğal kayaların ekonomik ve kolay çıkarılmasını daha da zorlaştırmaktadır. Bu durum ülkeleri doğal agregaya alternatif malzeme arayışına itmiştir. Bu çalışmada kentsel dönüşüm projesi kapsamında depreme dayanıksız olduğu belirlenen yapıdan alınan yıkıntı atıklarının birtakım işlemlerden geçirilerek geri dönüşümü yapılmıştır. Daha sonra laboratuvar deneyleri ile bu atıkların fiziksel ve mekanik özellikleri belirlenerek karayolu dolgularında kullanılabilmesi durumu incelenmiştir. Elde edilen sonuçlar farklı ülkelerde yapılan çalışmalar ile karşılaştırılarak ülkemizdeki yıkıntı atıklarının dünyadaki yıkıntı atıklarına benzerlikleri araştırılmıştır. Çalışma sonucunda ülkemizdeki binalardan elde edilen yapım ve yıkım atıklarının geri dönüştürülerek karayolu dolgularında kullanılmasına engel bir sonuç ile karşılaşılmamıştır.Anahtar Kelimeler: Yapım ve yıkım atıkları, geri dönüşümlü beton agrega, temel/alt temel tabakası, dolgu INVESTIGATION OF THE USABILITY OF CONSTRUCTION AND DEMOLITION WASTES IN ROAD BASES ABSTRACTGranular materials are commonly used in civil engineering applications like embankments, retaining walls, road bases and railway ballast. However, the availability of areas where natural rock can easily and economically be mined is becoming more difficult depending previous depletion of resources and environmental regulations associated with mining. This situation has pushed searching alternative materials to virgin aggregate of contractors. In this study, construction and demolition wastes taken from a structure that have low endurance against earthquake were subjected to some process and recycled. Then, its suitability of physical and mechanical properties for using as a filling material in base/subbase layer of road was investigated by laboratory tests. The results were compared with studies from different countries to examine the similarity of the wastes in Turkey. Finally, as it is seen, the waste material in Turkey has potential for using in base/subbase course of roads.

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Geotechnical Properties of Recycled Crushed Brick in Pavement Applications

Cited by 156 publications

References 8 publications

A new method to determine the density and water absorption of fine recycled aggregates

A new method to determine the density and water absorption of fine recycled aggregates

Performance of cement-stabilised crushed brick aggregates in asphalt pavement base and subbase applications

Yapim Yikim Atiklarinin Yol Temelleri̇nde Kullanilabi̇li̇rli̇ği̇ni̇n İncelenmesi̇

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