Prediction Method of Water Absorption of Soft Rock Considering the Influence of Composition, Porosity, and Solute Quantitatively

Cui, Guanghui; Zhou, Cuiying; Liu, Zhen

doi:10.3390/app12125938

Cited by 5 publications

(4 citation statements)

References 51 publications

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“…As shown in Table 1 , the Empyrean X-ray powder diffractometer was used to determine the content of red bed soil, the quartz content in the weathered soil sample of the red bed is the highest at 74.13%, followed by kaolinite, illite, chlorite, and montmorillonite, accounting for 19.06%. It can be inferred that the weathered soil of the red bed is cohesive and hard [ 20 ].…”

Section: Methodsmentioning

confidence: 99%

Ecological membrane for slope engineering based on red bed soil

2023

Self Cite

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Ecological slope protection projects (such as the reinforcement of low slopes by plants and ecological restorations of the soil of high steep rocky slopes) are essential for restoring the natural environment. In this study, red bed soil and composite polymer adhesive materials were used to develop an ecological membrane for application in slope ecological protection. The basic physical and mechanical properties of the ecological membranes with different material percentages were studied through tensile strength test and viscosity test, the effect of different material percentages on the properties of ecological membranes was studied, and the soil protection performance and ecological restoration performance were studied through anti-erosion and plant growth tests. The results show that the ecological membrane is soft and tough, with high tensile strength. The addition of the red bed soil can enhance the strength of the ecological membrane, and the ecological membrane with 30% red bed soil has the highest tensile strength. The ecological membrane has considerable tensile deformation capability and viscosity, and up to 100% by mass, the more composite polymer adhesive materials added, the greater the tensile deformation capability and viscosity. And the ecological membrane can enhance the anti-erosion performance of the soil. This study clarifies the development and technology of the ecological membrane, reveals the effect of different material percentages on the properties of ecological membrane, and analyzes the slope ecological protection mechanism of the ecological membrane, thereby providing theoretical and data support for its development, improvement, and application.

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Section: Methodsmentioning

confidence: 99%

Ecological membrane for slope engineering based on red bed soil

2023

Self Cite

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“…In order to study the water absorption rate of soft rock and prevent engineering disasters, a prediction model for the water absorption rate of soft rock was established by combining water absorption testing of soft rock and an aqueous solution, compared with the water absorption characteristics of natural rock to verify the reliability of the model. The results showed that the variations in the water content and water absorption rate of soft rock with time obey the second-order exponential decay function and the linear function (double-logarithmic coordinate axis), respectively [13].…”

Section: Introductionmentioning

confidence: 94%

Hydration Absorption and Thermal Effects of Outcrop Porous Sandstone Based on Intelligent Experimental and Infrared Thermography Techniques

Hao,

Wang,

Cheng

et al. 2023

Energies

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Sandstones are enriched in deep energy reservoirs and also exist as outcrop rocks, where the pore characteristics of sandstone are influenced by hydration absorption and thermal effects. To study the influence of the initial temperature on the hydration absorption characteristics of outcrop porous sandstone in the Mogao Grottoes, China, an intelligent experimental device for rock hydration was used. The hydration absorption characteristics and temperature effects of sandstone were analyzed by using infrared thermography techniques to monitor the infrared radiation characteristics of the sandstone’s surface during hydration absorption. The experimental results show that the higher the initial temperature of the rock samples, the shorter the time it takes for the sandstone to absorb enough water to reach saturation. The temperature variation of sandstone with different initial temperatures was also determined; the variation in the hydration absorption of sandstone conforms to certain rules, which can be expressed by formulae containing certain parameters. The changing trend of hydration absorption in outcrop porous sandstone shows that the hydration absorption increases rapidly at first, and then the rate of increase slows down until the hydration absorption remains unchanged after saturation. The experimental technique and method provide feasible means and techniques to evaluate the hydration absorption and thermal effects of outcrop porous sandstone, for further detecting the weathering degree of rock grottoes and revealing the damage mechanisms.

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“…Therefore, adding basalt fibers to MAC can effectively reduce internal pores in concrete and lower the water absorption rate of pavement structures, thereby reducing cracks caused by liquid water freezing in low-temperature environments. Cui et al [37] investigated the effects of material composition, porosity, and solute factors on the water absorption of soft rock in their study. Zhang et al [38] examined the influence of silica fume admixture on the water absorption of hydrophobic concrete.…”

Section: Water Absorptionmentioning

confidence: 99%

“…environments. Cui et al [37] investigated the effects of material composition, porosity, and solute factors on the water absorption of soft rock in their study. Zhang et al [38] examined the influence of silica fume admixture on the water absorption of hydrophobic concrete.…”

Section: Semmentioning

confidence: 99%

Properties of Concrete Reinforced with a Basalt Fiber Microwave-Absorbing Shielding Layer

Jiang,

Song,

Wang

et al. 2023

Sustainability

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The purpose of this study was to propose a highly efficient, durable, and environmentally friendly method for the rapid removal of ice and snow. A microwave-absorbing functionality layer was placed between a conductive metal mesh and magnetite sand shielding layer, and ordinary cement concrete (OC). Microwave heating, mechanical strength determination, and indoor and outdoor de-icing tests were performed on the cement concrete specimens with the shielding layer. Basalt fibers were added to the absorbing functionality layer, and the formed specimens were tested for strength and durability. The microstructure was observed using SEM experiments. The results show that the temperature rise of microwave-absorbing cement concrete with a magnetite sand shielding layer (MCMS) and microwave-absorbing cement concrete with a conductive metal mesh shielding layer (MCMM) increased by approximately 17.2% and 27.1%, respectively, compared to that of microwave-absorbing concrete (MAC). After freeze–thaw cycles, the compressive strength and flexural strength of microwave-absorbing concrete with basalt fiber (MAB) increased by 4.35% and 7.90% compared to those of MAC, respectively. The compressive strength and flexural strength of microwave-absorbing concrete with a magnetite sand shielding layer and basalt fiber (MAMB) increased by 8.07% and 6.57%, respectively, compared to those of MCMS. Compared to specimens without basalt fiber, the wear rate per unit area of MAMB decreased by 8.8%, and the wear rate of MAB decreased by 9.4%. The water absorption rate of MAMB specimens decreased by 13.1% and 12.0% under the conditions of 20 and 40 microwave freeze–thaw cycles, respectively, compared to that of MCMS. The water absorption rate of MAB specimens decreased by 9.9% and 8.3% under the conditions of 20 and 40 microwave freeze–thaw cycles, respectively, compared to that of MAC. SEM analysis showed that the addition of basalt fibers improved the compactness and stability of the cement concrete structure as a whole. This study provides valuable references for the promotion and application of microwave de-icing technology.

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Prediction Method of Water Absorption of Soft Rock Considering the Influence of Composition, Porosity, and Solute Quantitatively

Cited by 5 publications

References 51 publications

Ecological membrane for slope engineering based on red bed soil

Ecological membrane for slope engineering based on red bed soil

Hydration Absorption and Thermal Effects of Outcrop Porous Sandstone Based on Intelligent Experimental and Infrared Thermography Techniques

Properties of Concrete Reinforced with a Basalt Fiber Microwave-Absorbing Shielding Layer

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