Mechanical Properties of Cement-Stabilized Sandy Soils Modified with Consoil

Mustafa I. Ahmed; Alaa H. Abed

doi:10.28991/CEJ-2025-011-01-011

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Mustafa I. Ahmed
st.mustafa.A.A.J@nahrainuniv.edu.iq
Department of Civil Engineering, Al-Nahrain University, Baghdad,, Iraq
Alaa H. Abed Department of Civil Engineering, Al-Nahrain University, Baghdad,, Iraq

Vol. 11 No. 1 (2025): January

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This study investigates the mechanical enhancement of sandy soils through cement stabilization modified with Consoil, targeting improved pavement substructure performance. Unconfined compressive strength (UCS) tests were conducted on samples with varying cement contents (3%, 6%, 9%), Consoil dosages (0%, 5%, 10%, 15%, 20% by cement weight), and curing periods (3, 7, 28, 90 days). Field Emission Scanning Electron Microscopy and X-Ray Diffraction analyses complemented mechanical testing to understand strengthening mechanisms. Results demonstrated that 15% Consoil consistently optimized strength development across all cement contents, with 9% cement and 15% Consoil achieving peak 90-day UCS of 17.74 MPa, representing a 67% increase over control samples. Microstructural analysis revealed progressive matrix refinement with increasing Consoil content, while XRD indicated enhanced pozzolanic activity through calcium hydroxide consumption. The study introduces Consoil as an effective stabilization additive, establishing optimal dosage rates and demonstrating significant strength improvements through synergistic cement-Consoil interactions. The findings provide new insights into strength enhancement mechanisms in Consoil-modified cement-stabilized soils, offering practical guidelines for designing high-performance pavement substructures. The research contributes to sustainable construction practices by optimizing cement usage through Consoil incorporation.

Doi: 10.28991/CEJ-2025-011-01-011

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Publication Start Year:	2015
JCR 2024 Impact Factor (IF):	4.9
JIF QUARTILE:	Q1
SJR 2024 Quartile:	Q1
Acceptance Rate:	27%
Review Speed (Average):	81 days
Issue Per Year:	12
Number of Volumes:	11
Number of Issues:	119
Number of Articles:	1816
Number of Reviewers:	3624
Number of Contributors:	6178
Contributing Countries:	91
No. of WoS Citations:	7986
Scopus CiteScore:	6.5
No. of Google Citations:	24065
Google h-index:	56
Google i10-index:	804
Abstract Views:	11,481,612
PDF Download:	5,908,793

Mechanical Properties of Cement-Stabilized Sandy Soils Modified with Consoil

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