Suitability of Oil Shale Ash as a Constituent of Cement

Oymael, Sabit

doi:10.3176/oil.2007.1.06

Cited by 6 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was found that the values of compressive strength of specimens show a dramatic increase at 28 days than those at 7 days of hardening in terms of the effect of adding OSA contents. The mechanical characteristics of ashes obtained from oil shale of the El-Lujjun deposit are in agreement with the results obtained in previous studies [14][15][16].…”

Section: Effect Of Oil Shale Ash Contentsupporting

confidence: 91%

Evaluation the Effect of Adding Oil Shale Ash on the Compressive Strength of Concrete

Gougazeh¹

2022

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

In the present study, the effect of cementing properties of oil shale ash on the compressive strength of the concrete mixtures produced from oil shale ash, cement, sand, and water was investigated. The used shale ash was produced by direct combustion at 830°C in a laboratory muffle furnace of the El-Lajjun oil shale. Based on the chemical composition of shale ash (OSA), it was concluded that this material consists of a high percentage of CaO which forms the properties of cement materials as well as the contents of SiO 2 , Al 2 O 3 , and Fe 2 O 3 form the properties of pozzolanic materials. Oil shale ash (OSA) materials have diverse applications as alternative materials for the construction industry and construction technology to reduce environmental risks and achieve sustainability. The results showed that the pressed specimen with 40 wt.% OSA content, 50 wt.% sand content and 30% MW obtained the highest compressive strength of about 9.1 MPa after 28 days of hardening. The highest value of 28 days compressive strength for a compacted specimen containing 35 wt.% OSA and 35% MW were achieved with 12 MPa at a compaction pressure of between 25 and 30 MPa. High compressive strength values were found to be achieved in the compressed specimens by controlling mixing water. It is also indicated that the compressive strength increases as OSA content in the compressed specimen increases and increases as compaction pressure increases.

show abstract

Section: Effect Of Oil Shale Ash Contentsupporting

confidence: 91%

Evaluation the Effect of Adding Oil Shale Ash on the Compressive Strength of Concrete

Gougazeh¹

2022

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

show abstract

“…Furthermore, OSA as a cement substitute in pastes and mortars has been limited to 20%-all grades are in % by weight of cement from now on [36,37,44,46]. Other studies, on the other hand, have used OSA as an addition in pastes and concretes, varying its concentration between 15%wc and 30%wc [34,40,42]. In this context, it was shown that increasing the ash content reduced the concrete's compressive strength [39,41,42].…”

Section: Osa Contentmentioning

confidence: 99%

“…The OS burning temperature is critical for obtaining an OSA with a uniform composition because shale from different regions has different geological characteristics, i.e., equal burning temperature ranges can produce ashes with different chemical compositions [40]. Even so, OS combustion represents an opportunity to standardize the physical and chemical characteristics of the OSA.…”

Section: Os Burning Temperaturementioning

confidence: 99%

See 1 more Smart Citation

Towards eco-friendly cement-based materials: a review on incorporating oil shale ash

Silva,

Reis,

de Azevedo

et al. 2024

Discov Civ Eng

View full text Add to dashboard Cite

Considering the growing environmental concerns associated with construction industry activities, this article reviews the potential use of oil shale ash (OSA) as a cement substitute in cementitious materials. Specific issues to be investigated include the ideal OSA content to be incorporated into the mix, the optimum oil shale (OS) burning temperature for obtaining the ash, the influence of the specific area and chemical composition of the OSA on the composites, as well as the effects of its addition on the fresh state, mechanical and durability properties. To this end, the ProKnow-C systematic literature review process was adopted for the first time to study this topic, resulting in a portfolio of 14 manuscripts associated with the questions to be analyzed. The primary outcomes include: OSA contents between 10 and 30% are suitable for replacing cement; the ideal burning temperature for OS is between 600 and 800 ºC; high specific areas (between 6000 and 8000 cm2/g) improve pozzolanic activity; high OSA contents may require the use of water-reducing additives to improve workability; incorporating OSA into Portland cement-based materials can improve their compressive strength and durability. These conclusions highlight the importance of understanding the effects of incorporating OSA in developing cementitious materials, providing a basis for future research.

show abstract

“…Since it can cause environmental pollution, attempts were made to benefit from such material, especially in construction industries and chemical industries. Previous experimental results – indicated that oil-shale ash formed at temperatures ranging from 600 to 800 °C has a cementing strength. Its replacement of cement, sand, or both within cement mortar or concrete specimens by about 10 wt % would yield the optimum compressive strength for cement mortar or concrete, and its replacement of cement by up to 30 wt % would not reduce the compressive strength significantly .…”

Section: Introductionmentioning

confidence: 99%

Change of Pore Structure of Oil Shale Particles during Combustion. 2. Pore Structure of Oil-Shale Ash

2008

View full text Add to dashboard Cite

At present, there is a growing tendency to use low cost, commercially available oil-shale ash as a building material, a chemical filling material, an adsorbent, and so forth. To obtain oil-shale ash with higher porosity, the pore structure of oil-shale ash samples obtained from different combustion modes of oil shale was measured by using a N 2 isothermal adsorption/desorption method. The surface morphology of sample particles was photographed by field emission scanning electron microscopy, and their surface fractal dimensions were computed by a simple N 2 adsorption isotherm method as well. As a result of a comparison between pore structures of oil-shale ash samples, the oil-shale ash, formed at a fast combustion mode without ash agglomeration occurring, has a larger pore volume and specific surface area because it has more pores and a rougher surface.

show abstract

Suitability of Oil Shale Ash as a Constituent of Cement

Cited by 6 publications

References 10 publications

Evaluation the Effect of Adding Oil Shale Ash on the Compressive Strength of Concrete

Evaluation the Effect of Adding Oil Shale Ash on the Compressive Strength of Concrete

Towards eco-friendly cement-based materials: a review on incorporating oil shale ash

Change of Pore Structure of Oil Shale Particles during Combustion. 2. Pore Structure of Oil-Shale Ash

Contact Info

Product

Resources

About