Influences of various construction and demolition materials on the behavior of a clay

Çabalar, Ali Fırat; Abdulnafaa, Mohammed D.; Karabash, Zuheir

doi:10.1007/s12665-016-5631-4

Cited by 46 publications

(10 citation statements)

References 17 publications

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“…Recently, a series of studies on the use of concrete rubble, asphalt aggregates, and bricks from demolition and construction rubble after being mixed with clay with low plasticity and used as paving materials for roads [25,26], [41][42][43][44][45][46][47]. The researchers concluded that demolition and concrete construction waste can be mixed with clay in specific proportions for the paving layer by methods to increase durability and reduce swelling and plasticity and reduce environmental and economic problems around the world.…”

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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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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“…In addition to aqueous wastes, the management of solid wastes such as excavated soils, ceramic tiles (Cabalar et al, 2016b), demolition materials (Cabalar et al, 2016a, 2017, 2020) and dredged sediments also raises the question of the fate of sulfates. The upgrading of this type of matrix is studied in geotechnical and civil engineering approaches as potential concrete and mortar components (Achour et al, 2019; Ennahal et al, 2019; Maherzi et al, 2020; Yang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Over-sulfated soils and sediments treatment: A brief discussion on performance disparities of biological and non-biological methods throughout the literature

Ahmat

Mamindy-Pajany

2021

Waste Manag Res

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High sulfate concentrations in industrial effluents as well as solid materials (excavated soils, dredged sediments, etc.) are a major hindrance for circular economy outlooks. SO42- acceptability standards are indeed increasingly restrictive, given the potential outcomes for public health and ecosystems. This literature review deals with the treatment pathways relying on precipitation, adsorption and microbial redox principles. Although satisfactory removal performances can be achieved with each of them, significant yield differences are displayed throughout the bibliography. The challenge here was to identify the parameters leading to this variability and to assess their impact. The precipitation pathway is based on the formation of two main minerals (ettringite and barite). It can lead to total sulfate removal but can also be limited by aqueous wastes chemistry. Stabilizer kinetics of formation and equilibrium are highly constrained by background properties such as pH, Eh, SO42- saturation state and inhibiting metal occurrences. Regarding the adsorption route, sorbents’ intrinsic features such as the qmax parameter govern removal yields. Concerning the microbial pathway, the chemical oxygen demand/SO42- ratio and the hydraulic retention time, which are classically evoked as yield variation factors, appear here to be weakly influential. The effect of these parameters seems to be overridden by the influence of electron donors, which constitute a first order factor of variability. A second order variability can be read according to the nature of these electron donors. Approaches using simple monomers (ethanol lactates, etc.) perform better than those using predominantly ligneous organic matter.

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“…Moreover, Osinubi et al (2011) used ordinary Portland cement -Locust bean waste ash mixture to enhance the engineering properties such as (UCS) and California bearing ratio (CBR) for black cotton clayey soil. Crushed concrete waste, which represents the last form of cement used, has been used in many studies to improve the properties of clay soils (Abdulnafaa et al, 2019;Cabalar et al, 2016Cabalar et al, , 2017Cabalar et al, , 2019aİşbuğa et al, 2019). The main purpose of adding ordinary Portland cement to cohesionless soils is to provide strong bonds between soil particles (Consoli et al, 2011(Consoli et al, , 2017.…”

Section: Introduction and Past Studiesmentioning

confidence: 99%

Geotechnical and other characteristics of cement-treated low plasticity clay

Alkiki¹,

Abdulnafaa²,

Aldaood³

2021

S&R

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This research work examines the utilization of cement in order to improve low plasticity clay soil. The soil samples treated with 2, 4 and 6% cement percents and cured for different curing times extended to 90 days. Laboratory investigations include unconfined compression, indirect tensile, gas permeability and microstructural tests, which were conducted on the tested samples. The soil-water retention behavior has been also investigated. The test results showed that the cement addition improved both the compressive and tensile strength properties of soil specimens. These strength properties were also increased with curing times. pH and electrical conductivity values were good indicators for the enhancement in the strengths properties. The results of micro structural tests illustrated that the natural soil specimens contain voids and the open structure. Further, these tests showed the cementation of soil grains and filling the voids among soil grains with cementing compounds. Gas permeability and soil-water retention behavior of soil specimens are strongly related to the variations in the soil structures. Further examination illustrated that in the case of low cement content, the pore size distribution (PSD) and the efficiency of gas permeability are more sensitive to curing times.

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Influences of various construction and demolition materials on the behavior of a clay

Cited by 46 publications

References 17 publications

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

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

Over-sulfated soils and sediments treatment: A brief discussion on performance disparities of biological and non-biological methods throughout the literature

Geotechnical and other characteristics of cement-treated low plasticity clay

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