Physical properties of demolition waste material

Chidiroglou, Iordanis; Goodwin, A K; Laycock, Elizabeth; O'Flaherty, Fin

doi:10.1680/coma.2008.161.3.97

Cited by 21 publications

(10 citation statements)

References 11 publications

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“…The low flakiness index value of NA can be explained by these materials being used in their natural state without being subjected to any crushing process, and the material becomes globular because of its geological formation resulting from wearing. Chidiroglou et al investigated the effect of RCA, which was subjected to second crushing, on the flatness index ( 97 ). Two types of crushing processes are applied.…”

Section: Properties Of Rcamentioning

confidence: 99%

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Sustainable Materials: A Review of Recycled Concrete Aggregate Utilization as Pavement Material

Aytekin

Mardani‐Aghabaglou

2021

Transportation Research Record: Journal of the Transportation R

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In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and demolition waste material, in base and subbase layers and its comparison with natural aggregate (NA). The effects of crushing on the particles as a result of the compaction on the resilient modulus, permanent deformation, and California Bearing Ratio are analyzed. The paper also contains the NA consumption and waste disposal policies of different countries, RCA standards, and the environmental-economic reasons for its use. This literature review mainly focuses on pavement layers as this is the main application of RCA in the use of recycled materials. Developing integrated construction and demolition waste management will help achieve the primary goal of preventing and reducing the generation of these wastes, both locally and globally. In this way, not only is the main purpose of preventing the increase in the production of construction and demolition waste achieved, but also the reuse and recycling of the waste materials produced are encouraged. Results show that RCA has equivalent or better performance than virgin aggregate for almost any application with proper care and process control, and can be used in unbound pavement layers or other applications requiring compaction. But it is always recommended that its mechanical properties and durability performance be evaluated with full-scale tests before use. The information provided will be useful for contractors and engineers to evaluate alternative solutions and to explore the rational use of such sustainable materials in applications.

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Section: Properties Of Rcamentioning

confidence: 99%

“…With the increase in the exposure time of the aggregates to the crushing process, the weak pieces break and the flat and elongated particles tend to become spherical. Thus, the amount of aggregate displayed as defective decreases ( 96 , 97 ).…”

Section: Properties Of Rcamentioning

confidence: 99%

Sustainable Materials: A Review of Recycled Concrete Aggregate Utilization as Pavement Material

Aytekin

Mardani‐Aghabaglou

2021

Transportation Research Record: Journal of the Transportation R

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“…One study in Hong Kong finds that the optimum moisture content got increased and the maximum dry density got decreased when the concrete aggregates were replaced by clay brick aggregates, which is mainly due to the low density and greater water absorption of bricks (Poon and Chan, 2006). Another study showed that the mechanical resistance showed improvement when sand (5%), cement (10%), and brick (6%) were added to recycled concrete aggregate (Chidiroglou et al, 2008). Experimental research work conducted on crushed concrete aggregates by Chidiroglou et al, 2008 suggested that different demolition waste materials are produced, which have different properties, and the results of the research would not be consistent with other wastes.…”

Section: Candd Materialsmentioning

confidence: 99%

Sustainable usage of demolished concrete waste as a sub-base material in road pavement

et al. 2023

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Recycled concrete aggregate, waste rock, crushed stone aggregate, reclaimed asphalt pavement, crushed clay brick, fine recycled glass, and gravel are some of the things that are left behind when concrete buildings are torn down. These things are a big problem for many countries around the world. More and more people want to find smart ways to use the waste that these substances make. To protect the environment and natural resources and to keep damage to the environment to a minimum, it is important to deal with this issue locally. Several studies have shown that old concrete is strong and can be used as a green material. This will make construction cheaper in the long run. Thus, the goal of this research was to find out how well demolished concrete waste works and what its engineering properties are so that it could be used in the base and sub-base of road pavements. The old concrete waste aggregates were used to replace the new or fresh aggregates in a range from 0% to 100% by weight. When demolished concrete waste aggregates were used instead of new aggregates, the water absorption went up from 1.58 to 4.65%. This shows that the water-cement ratio got better. The crushing value went up from 26.54 to 55.29%, the impact value went up from 27.86 to 58.05%, and the abrasion value went up from 26.96 to 35.58%. Based on the results of this study, the sub-base of roads can be made from a mix of 50% recycled aggregates and 50% new aggregates. Reusing concrete waste from buildings that have been torn down as a sub-base material will help reach social, economic, and environmental sustainability.

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“…Although there are a large number of studies focusing on the use of reclaimed asphalt slabs and crushed concrete aggregates in many geotechnical applications, limited research has been conducted on the use of bricks. An experimental study demonstrated the physical properties of demolition waste materials to reuse as fill materials for engineering purposes [37]. The researchers presented a study of the physical properties of three commercial types of cement and crushed bricks.…”

Section: Rubbles Of Clay Bricks In Mosulmentioning

confidence: 99%

Evaluation of Reuse of Demolition and Construction Waste in Geotechnical Engineering Works with A Case Study: Mosul City (Review)‎

Abdulnafaa

Aldabag

Alghyat

2021

DJES

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Demolition and construction waste are among the topics that focus by many researchers. The ‎methods of reuse of waste materials must reduce the economic and environmental pressure of their ‎presence in various regions. Before 2014, the city of Mosul contained relatively small quantities of ‎demolition and construction debris, especially concrete rubble, asphalt materials, and bricks (they formed ‎approximately 80% of the construction and demolition debris). These materials increased very greatly ‎after the liberation operations and the widespread destruction of large parts of the city and became a great ‎problem in the reconstruction operations. There is no clear plan yet in the city to deal with this debris, and it ‎is disposed of by moving them to another place or burying them randomly when rebuilding the destroyed ‎parts. This study shows to deal with demolition and construction debris in Mosul after liberation and during ‎reconstruction operations. Also, many sources and data dealing with the re-use of demolition and ‎construction debris in the field of geotechnical engineering for operations to improve the engineering ‎properties of soils are presented. Many papers show the possibility of using construction and demolition waste as an alternative base or sub-base materials, fill for embankments, or increase durability and reduce the swelling ‎and plasticity ‎of clay. The study concludes that the researches and data can be used to deal with ‎the rubble of demolition and construction in Mosul in a way that enables to benefit from it economically ‎and environmentally.‎

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Physical properties of demolition waste material

Cited by 21 publications

References 11 publications

Sustainable Materials: A Review of Recycled Concrete Aggregate Utilization as Pavement Material

Sustainable Materials: A Review of Recycled Concrete Aggregate Utilization as Pavement Material

Sustainable usage of demolished concrete waste as a sub-base material in road pavement

Evaluation of Reuse of Demolition and Construction Waste in Geotechnical Engineering Works with A Case Study: Mosul City (Review)‎

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