The Effects of Fiber Inclusion on the Evolution of Desiccation Cracking in Soil-Cement

Xu, Yaxing; Yao, Xin; Zhuang, Yan; Duan, Wei; Zhang, Xidong; Hu, Shunlei; Dong, Xiaoqiang

doi:10.3390/ma14174974

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…Fig. 3 Water content profiles in active zones [8] Different researchers investigate mitigating desiccation cracking by the influence of additives such as cement, lime, sand, fibers, and bio-enzymes [5,9]. These studies focused on hydraulic conductivity and volumetric shrinkage of clay soil.…”

Section: Fig 1 Soil Map Of Ethiopiamentioning

confidence: 99%

“…Very recently, Yaxing et al (2021) [9] studied the use of fibers (i.e., jute fiber and polyvinyl alcohol fiber (PVA)) and illustrated the evolution of desiccation cracking by applying the digital image correlation (DIC) method. These experimental results showed that the presence of fibers significantly affects the crack evolution and the reinforced soil's length and area during shrinkage.…”

Section: Fig 1 Soil Map Of Ethiopiamentioning

confidence: 99%

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Effect of Diatomaceous Earth on Desiccation Cracking of Expansive Soils

Tadesse¹

2023

GEOMATE

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Expansive soils shrink and swell, causing considerable density differences as the moisture content varies and cracks develop as the soil dries. This cracking condition has a detrimental effect on the stability of infrastructure built on expansive soil, such as road embankments. This paper investigates the influence of diatomaceous earth (at 5%, 10%, 15%, and 20% DE percent by mass) on the desiccation cracking of expansive soils. The report demonstrates an image analysis technique to describe soil surface cracking quantitatively. The geometric features of cracks, such as surface crack area and crack connectivity, were estimated and examined. The study considers soil crack area ratio and cracking index to investigate the effect of diatomaceous earth on expansive soil surface cracking. The crack area ratio and cracking index analysis results show that the expansive soil surface cracking is uneven and significant. The soil matrix containing 10% and 20% diatomaceous earth has reduced surface cracking and a homogenous radial cracking pattern. The image analysis approach, an essential method to quantitatively quantify soil desiccation cracking, revealed that diatomaceous earth substantially affects surface crack reduction.

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Section: Fig 1 Soil Map Of Ethiopiamentioning

confidence: 99%

Section: Fig 1 Soil Map Of Ethiopiamentioning

confidence: 99%

Effect of Diatomaceous Earth on Desiccation Cracking of Expansive Soils

Tadesse¹

2023

GEOMATE

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“…Given the fact that natural soil is the most eco-friendly material that is typically used to produce bricks, combining vegetable fibers with it could be deemed one of the most promising methods for greening the construction sector. Several researchers around the globe are inspired to try creating intelligent, lightweight, and alternative materials with samples could vary greatly depending on the earth mixture and the addition of fibers to the soil matrix to prevent the formation of shrinkage cracks [21]. Less shrinkage occurs when fibers with higher bonds are more resistant [8].…”

Section: Introductionmentioning

confidence: 99%

Enhancing mechanical properties and crack resistance of earth-sand building materials through alfa fiber reinforcement: An experimental investigation

Sadouri,

Kebir,

Benyoucef

2024

Građ materijali i konstrukcije

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This paper investigates enhancing the mechanical properties and crack resistance of earth-sand building materials by incorporating Alfa fibers, derived from the Alfa plant. Earth-based construction materials, known for their sustainability, face challenges in mechanical performance and cracking. The study explores a composite of earth (60 wt%) and sand (40 wt%) reinforced with Alfa fibers of varying lengths and rates. Tensile strength and water absorption of the fibers were assessed, and prismatic specimens (40x40x160 mm3 ) with different cutting lengths were tested. Results inform the potential of Alfa fibers for improving earth-based material performance. Incorporating 2% wt of Alfa fibers reduced the unit weight of the composite from 1849 kg/m3 to 1632 kg/m3 , resulting in a slight material weight decrease. Compared to unreinforced adobe specimens, fibrous samples exhibited lower linear shrinkage rates and improved mechanical behavior, with 2% wt of 3 cm fibers showing optimal performance. The fibers effectively impeded crack propagation, with both length and content influencing crack attenuation. However, microstructural observation revealed poor fiber/matrix adhesion, negatively impacting adobe specimen compactness despite enhanced mechanical properties.

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“…The formation and development of fissures is a major factor in the destruction of soil structure [ 16 , 17 ]. The above mentioned existing research on fissures and improvements in expansive soil only focuses on improving strength and mechanical properties, ignoring improving the waterproofness of soil.…”

Section: Introductionmentioning

confidence: 99%

Research on the Mechanism and Prevention Methods of the Drying Shrinkage Effect of Earthen Sites

et al. 2022

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In view of the fact that it is easy for the ancient city soil site of Cai Kingdom to expand and crack when encountering water, this paper explores the methods to improve the expansion and shrinkage deformation, dry shrinkage cracks and easy water absorption characteristics of the expanded site soil based on a lime and silicone hydrophobic agent. In this paper, the expansive clay in the old city site of Cai Kingdom in Zhumadian was taken as the research object, and the dry-shrinkage fissure test of saturated expansive soil was carried out, to study the influencing factors of the dry-shrinkage cracking of expansive soil in this area. The site soil was modified with lime and glue powder, and the fissure image was quantitatively analyzed by MATLAB. The test shows that the smaller the particle size, the faster the evaporation of water and the smaller the surface fissure rate; the thicker the thickness of the soil sample, the greater the surface fissure rate and the greater the crack width; and with the increase in the number of drying and wetting cycles, the surface fissure rate of the soil sample increases. In this paper, lime and waterproof materials are used to improve the expansive soil. This not only reduces the dry shrinkage crack rate, but also improves the waterproof performance and durability of expansive soil.

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The Effects of Fiber Inclusion on the Evolution of Desiccation Cracking in Soil-Cement

Cited by 10 publications

References 35 publications

Effect of Diatomaceous Earth on Desiccation Cracking of Expansive Soils

Effect of Diatomaceous Earth on Desiccation Cracking of Expansive Soils

Enhancing mechanical properties and crack resistance of earth-sand building materials through alfa fiber reinforcement: An experimental investigation

Research on the Mechanism and Prevention Methods of the Drying Shrinkage Effect of Earthen Sites

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