Engineering Properties of Cement Stabilized Expansive Clay Soil

Sorsa, Alemineh

doi:10.2478/cee-2022-0031

Cited by 13 publications

(4 citation statements)

References 15 publications

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“…The water-to-binder (w/b) ratio in the BC mortar, as outlined by GB/T 17671-2021 [30], is fixed at 0.5. The cement-to-standard sand mass ratio was consistently maintained at 1:3.…”

Section: Specimen Preparationmentioning

confidence: 99%

Enhancing Biochar Impact on the Mechanical Properties of Cement-Based Mortar: An Optimization Study Using Response Surface Methodology for Particle Size and Content

Zhou,

Wang,

Tan

et al. 2023

Sustainability

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The utilization of agricultural waste, specifically biochar (BC), as an alternative material to conventional Portland cement offers substantial potential for enhancing sustainability within the construction industry. This study investigates how variations in BC particle size and content affect the properties of cement mortar using Response Surface Methodology (RSM). By manipulating BC’s content and particle size in the mortar mixture and analyzing the data with RSM, this study establishes response surface models to predict the relationship between BC characteristics and cement mortar strength. The results demonstrate that the optimal combination for enhancing the mechanical performance of the mortar is achieved when BC particles have a median particle diameter of 51.08 μm and a content of 2.69% of the mixture. Additionally, utilizing scanning electron microscopy (SEM), it is revealed that BC serves as a nucleation site for cement hydration, thereby inducing a more compact and dense microstructure within the cement mortar. Furthermore, BC particles contribute to enhancing the interfacial transition zone between the cement paste and aggregate, leading to increased compressive strength and fracture toughness of the mortar while simultaneously curbing crack propagation.

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“…The water-to-binder (w/b) ratio in the BC mortar, as outlined by GB/T 17671-2021 [30], is fixed at 0.5. The cement-to-standard sand mass ratio was consistently maintained at 1:3.…”

Section: Specimen Preparationmentioning

confidence: 99%

Enhancing Biochar Impact on the Mechanical Properties of Cement-Based Mortar: An Optimization Study Using Response Surface Methodology for Particle Size and Content

Zhou,

Wang,

Tan

et al. 2023

Sustainability

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“…Te chemical reaction is done by exchanging ions. Tis enhances the stabilized soil's nonexpansive or less expansive material [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Woldesenbet

2023

Journal of Engineering

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The aim of this study was to improve the strength of black cotton soil for its suitability for road subgrade construction using wastes from plastic bottles and glass waste powders. Currently, nondecomposable wastes from plastic and glasses have become threats to the human health and the environment. This study used the wastes to replace cement, since the cost of cement raised due to energy and raw material to use as stabilizer in weak soil. The glass powder (WGP) and the plastic chips were mixed with the soil sample with a percentage by dry weight of 6%, 12%, 18%, and 24% of WGP and 2%, 4%, 6%, and 8% of plastic chips, respectively. The glass waste can be prepared similar to the soil as the requirement of test standards and plastic wastes was used as reinforcement for the soil-glass-mix; hence, its purpose was geomechanical. Laboratory tests for soil-mix physical properties and strength parameters were conducted. Soil laboratory test results proved that the natural soils were classified to A-7-5 as per the AASHTO Soil Classification System and CH as per the Unified Soil Classification System (USCS). The Unconfined Compressive Strength (UCS) improved from 91.92 kPa to 688.83 kPa, and the California Bearing Ratio (CBR) improved from 2.64 to 17.5. The improvement of subgrade soil properties was increased with increased ratios of powder glass and plastic strips. The result indicated that the two stabilizers were very effective in improving strength parameters and index parameters.

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“…One of these methods is using pozzolanic materials [6], such as lime, cement, waste materials (fly ash, rice husk ash, etc. ), and metakaolin [7][8][9][10][11]. Additionally, a new technology known as the precipitation of calcite induced through microorganisms (MICP), which employs ureolytic bacteria to stabilize soil, has been developed [12].…”

Section: Introductionmentioning

confidence: 99%

Silica Fume Influence on Behavior of Expansive Soil

Mohammed,

Mehsin,

Al-Hadidi

2023

E3S Web Conf.

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In this investigation, silica fume (SF) was used as an additive material to study its influence on the characteristics of expansive soil. The soil used in this research was prepared in a lab by mingling bentonite (50 percent by soil dry weight) with natural soil. According to (USCS), the prepared soil was classified as (CH) with a liquid limit of 67.5 percent and a plastic limit of 29.3%. Expansive soil was mixed with different percentages of (SF), (8, 9, 10, 11, 12, and 13%), and experiments were conducted for treated and untreated soil to examine the impact of (SF) on Atterberg's limits, compressibility, swelling, and shear strength parameters. The outcome of this test shows that the use of silica fume raised Atterberg's limits (L.L, P.L, and P.I) and lowered compressibility and swelling percentage, as well as shear strength parameters (c,φ), were altered by increasing the angle of internal friction (φ), and decreased the cohesion (c). From these results, it is concluded that (SF) has a positive effect as an additive material to enhance the geotechnical properties of expansive soil.

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Engineering Properties of Cement Stabilized Expansive Clay Soil

Cited by 13 publications

References 15 publications

Enhancing Biochar Impact on the Mechanical Properties of Cement-Based Mortar: An Optimization Study Using Response Surface Methodology for Particle Size and Content

Enhancing Biochar Impact on the Mechanical Properties of Cement-Based Mortar: An Optimization Study Using Response Surface Methodology for Particle Size and Content

Strength Improvement of Black Cotton Soil Using Plastic Bottles and Crushed Glass Wastes

Silica Fume Influence on Behavior of Expansive Soil

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