Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Coventry University

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (7/7 displayed)

  • 2021Incorporation of a nanotechnology-based product in cementitious binders for sustainable mitigation of sulphate-induced heaving of stabilised soils21citations
  • 2018Finite Element Analysis of the Flexural behaviour of Steel-Reinforced GEM-TECH Cementitious Material2citations
  • 2017Effect of grinding on early age performance of High Volume Fly Ash ternary blended pastes with CKD & OPC13citations
  • 2014Optimizing paste proportions to enhance early age strength of high volume fly ash (HVFA) concrete.citations
  • 2013Ultimate strength of continuous beams with exposed reinforcement3citations
  • 2009Behaviour of continuous reinforced concrete beams during the patch repair processcitations
  • 2008Behaviour of continuous beams during repair breakout.citations

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Ganjian, Eshmaiel
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Eyo, Eyo Umo
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Ngambi, Samson
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Abbey, Samuel
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Olubanwo, Adegoke
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Ogbologugo, Ucheowaji
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Saidani, Messaoud
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Bondar, D.
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Bondar, Dali
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Cairns, J.
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Cairns, John
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Co-Authors (by relevance)

  • Ganjian, Eshmaiel
  • Eyo, Eyo Umo
  • Ngambi, Samson
  • Abbey, Samuel
  • Olubanwo, Adegoke
  • Ogbologugo, Ucheowaji
  • Saidani, Messaoud
  • Bondar, D.
  • Bondar, Dali
  • Cairns, J.
  • Cairns, John
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article

Incorporation of a nanotechnology-based product in cementitious binders for sustainable mitigation of sulphate-induced heaving of stabilised soils

  • Ganjian, Eshmaiel
  • Eyo, Eyo Umo
  • Ngambi, Samson
  • Abbey, Samuel
  • Coakley, Eoin
Abstract

Sulphate-induced heaving in soils is a common problem caused mostly by the use of calcium-based binders in the stabilisation of sulphate-bearing soils. Sulphate-induced heaving is attributed to precipitation and growth of ettringite minerals in a high alkaline environment. A sustainable means of reducing sulphate-induced heaving by the addition of an additive called “RoadCem” (RC) to soils stabilised by calcium-based cementitious products has not been studied. RoadCem (RC) is an additive that is manufactured based on nanotechnology and comprises synthetic zeolite, alkaline metals and some complex activators as some of its constituents. This research is therefore concerned with the performance of a sulphate-bearing soil stabilised by partially substituting cement (CEM I) with ground granulated blast furnace slag (GGBS) and incorporation of marginal quantities of RC. Laboratory studies including oedometer free swelling testing, unconfined compressive tests and microstructural analyses of the phases of hydration in the stabilised soils were carried out. Results indicated a reduction in heave by about 67% when 1% of RC was included in the cementitious mix with 50% of the CEM I replaced by a combination of GGBS and RC. The use of RC in the stabilised soil was even more promising than that in which only GGBS was utilised to replace half of the CEM I proportion in the stabilised soil with the result indicating almost a 30% difference in heave reduction. Results also indicated an increase in the unsoaked strength of stabilised soil with RC inclusion compared to the stabilised mix without RC. Scanning electron micrograph studies revealed almost a complete elimination of heave-causing ettringite minerals under a 28-day hydration phase of the stabilised soil when using RC.

Topics
  • impedance spectroscopy
  • mineral
  • inclusion
  • phase
  • strength
  • cement
  • precipitation
  • Calcium