Feasible use of colliery spoils as subbase layer for low-traffic roads

Suescum-Morales, David; Romero-Esquinas, Álvaro; Ledesma, Enrique; Fernández, José Antonio Fernández; Jiménez, José Ramón

doi:10.1016/j.conbuildmat.2019.116910

Cited by 10 publications

(4 citation statements)

References 20 publications

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“…For future research, it may be beneficial to avoid heating ATS. This should be checked with a leaching analysis, which shows that this residue is not hazardous to the environment, as was determined in previous research by the authors [ 40 ].…”

Section: Resultsmentioning

confidence: 84%

The Effect of Acanthocardia tuberculata Shell Powder as Filler on the Performance of Self-Compacting Mortar

et al. 2023

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In this research, the feasibility of using Acanthocardia tuberculata shell waste from the canning industry in the manufacturing of self-compacting mortar (SCM) was tested. The seashells were finely ground to be used as filler instead of the limestone filler normally used in this type of SCM. First, a physicochemical and microstructural characterisation of all raw materials was carried out, including the particle size distribution of both fillers. Subsequently, the self-compactability properties in the fresh state of SCM were evaluated using a total substitution by volume of limestone filler for seashell powder, using different self-compactiblity parameters. The mineralogical phases of all the SCM tested were identified once hardened by means of X-ray diffraction technique, thermogravimetric and differential thermal analysis. In addition, the mechanical properties, water absorption capacity, dry bulk density and accessible porosity of water of hardened mortars at 28 days of curing were analysed. The effect of replacing limestone filler by Acanthocardia tuberculata filler resulted in a decrease in compressive strength of 29.43, 16.84 and 2.29%, respectively. The results indicate that it is possible to completely replace natural limestone filler with Acanthocardia tuberculata shell filler without significantly affecting the mechanical properties of SCM.

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Section: Resultsmentioning

confidence: 84%

The Effect of Acanthocardia tuberculata Shell Powder as Filler on the Performance of Self-Compacting Mortar

et al. 2023

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“…A colliery (or coal mine) is a coal exploration structure (a pit head and the superstructure). Coal is the second most used source of energy worldwide, in 2015, about 70% of extracted coal was used in electricity generation (Suescum-Morales et al, 2019). It is approximated that about 38% of the total electricity generated in 2018 was from coal fuels (BP Statistical Review of World Energy, 2019).…”

Section: Colliery Spoilsmentioning

confidence: 99%

“…The use of CS has been adopted in the construction industry in the production of cement concrete as an alternative material (Suescum-Morales et al, 2019). Another study by (Modarres and Ayar, 2014) used CS in the construction of sub-layers for road pavement structures.…”

Section: Colliery Spoilsmentioning

confidence: 99%

“…To tackle this, various researchers have in the last two decades studied means of incorporating sustainable materials in road construction to support conservation. Some of these methods include the reuse of selected waste materials such as construction and demolition wastes (Stehlik et al, 2015;Zhang et al, 2019), glass waste (Kadhim et al, 2019), Waste tire rubber (Bonicelli et al, 2017), fly ash and granulated blast furnace slag (GBFS) (Bakare et al, 2019), colliery spoils (Suescum-Morales et al, 2019), polyethylene terephthalate (PET) (Sojobi et al, 2016), mine tailings, shingles (Haas et al, 2019), aluminium dross (L opez-Alonso et al, 2019), and bio oils (Kousis et al, 2020) to list a few, in the construction and rehabilitation of roadways. These materials have been evaluated separately or alongside other waste materials as a full or partial replacement for certain traditional construction materials.…”

Section: Introductionmentioning

confidence: 99%

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Waste materials in highway applications: An overview on generation and utilization implications on sustainability

Bamigboye

Bassey

Olukanni

et al. 2021

Journal of Cleaner Production

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The rate at which the construction industry explores and consumes non-renewable natural aggregates and other industrial products such as bitumen, lime, and cement during construction and rehabilitation of road pavements has over time proven to be environmentally degrading and non-sustainable. This, alongside the issues of high solid waste generation and inadequate disposal, has led to series of studies by various researchers to find methods to integrate these solid wastes as alternative materials in road construction and maintenance. This paper provides a simple yet detailed review of recent relevant studies conducted to understand the alarming rate of generation and the effects of reusing these waste materials in both flexible and rigid pavements. The review further outlines the advantages and disadvantages of the selected waste materials and compare the results with that of conventional materials in accordance with relevant standards while highlighting the performance, and life cycle environmental and economic sustainability implications. The study shows that the adoption of these materials offers efficiency in waste disposal while reducing the demand for natural aggregates and consequently, significantly reducing life cycle impacts and costs. The challenges limiting the effective practical implementation of these waste recycling techniques in the construction industry were discussed and possible solutions were suggested to encourage and ensure its utilization in road construction.

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