Potential use of clayey soil in aerated lightweight concrete

Ng, Soon-Ching; Low, Kaw-Sai; Tioh, N. H.

doi:10.1007/s12205-012-1380-4

Cited by 19 publications

(6 citation statements)

References 16 publications

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“…In recent years, foamed mixture lightweight soil (FMLS) has been widely used because of its lightweight, regulatory of density and strength, good workability, self-reliance after hardening, good durability, impermeability, good heat and sound insulation, and superior environmental protection. For example, FMLS has been successfully used in the field of heat preservation and insulation, underground pipe and cavity filling, and foundation pit and subgrade backfilling, especially in highway subgrade filling [1,2], and its use in these applications significantly shortens the construction duration and reduces the project investment. Japanese researchers have proposed the use of FMLS as early as the early 1980s and conducted a series of indoor and outdoor experimental studies.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Properties of Foamed Mixture Lightweight Soil Mixed with Bauxite Tailings as Filler

Peng

Jiang

et al. 2019

Advances in Materials Science and Engineering

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To make better use of large amounts of discarded bauxite tailings (BTs), a foamed mixture lightweight soil mixed with BTs as filler (FMLSB) was proposed. Using the orthogonal experimental design method, the effects of various contents of cement, BTs, and foam on the fluidity, wet density, unconfined compressive strength, water absorption, and microstructure of FMLSB were studied. The experimental results indicate that the wet density and unconfined compressive strength increase as the contents of cement and BTs increase but decrease as the foam content increases. Water absorption increases with the reduction of the wet density, but the unconfined compressive strength exponentially increases as the wet density increases. With an increase in the contents of cement and BTs and a decrease in the foam content, fewer pores are present, and the pores are not connected with each other. The results of the range analysis show that the main factor affecting the wet density and unconfined compressive strength of the FMLSB is the foam content, followed by the cement content, and meanwhile, BTs can maintain the lightweight and high strength of FMLSB. Based on the intended engineering applications and standard specifications, the optimum composition of the FMLSB mixture is proposed. Overall, the results indicate that BTs have the potential to be used as filler to produce FMLSB and that applications of FMLSB will lead to great economic and environmental benefits in engineering construction.

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Section: Introductionmentioning

confidence: 99%

Investigating the Properties of Foamed Mixture Lightweight Soil Mixed with Bauxite Tailings as Filler

Peng

Jiang

et al. 2019

Advances in Materials Science and Engineering

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“…A material with a diameter less than 4.75 mm is used to make air-foamed lightweight soil (i.e., fine aggregate) to prevent the resulting soil from being damaged by large particles, which would cause a defoaming phenomenon [29]. Untreated soil construction waste or other novel materials can be used as aggregates [51][52][53][54][55]. Table 1 provides a summary of some lightweight aggregate types and their typical characteristics.…”

Section: Aggregatesmentioning

confidence: 99%

Engineering Properties and Applications of Air-Foamed Lightweight Soil

Yuan

Lü

Yao

et al. 2022

Advances in Materials Science and Engineering

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With the continuous development of road construction worldwide, the construction sector is trying to find a versatile material for building roads in particular areas. Air-foamed lightweight soil, which is produced using low-cost raw materials and has a lower density varying from 300 to 1800 kg/m3, adjustable strength, excellent thermal isolation, and a more straightforward construction method, has emerged as a worthy candidate. This paper reviews air-foamed lightweight soil in terms of its composition as well as physical and mechanical properties, such as its compressive strength, flexural strength, and stability. This paper also generalizes the engineering applications of air-foamed lightweight soil and provides ideas for its wide use.

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“…Another advantage of statistical modeling is that it can define a confidence interval for your prediction, making it more accurate than other techniques (Asadollahfardi et al, 2015;Köksal et al, 2015;Zhang et al, 2021;Muchhadiya et al, 2022;Szymański et al, 2022). Strong relationships between aerated lightweight concrete's strength characteristics and their controlling factors were modeled using multiple regression analysis (Ng et al, 2012;Gencel et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and optimization of lightweight concrete bricks developed using vermiculite

2023

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Concrete production requires a wealth of resources, including cement, aggregate, and water. Therefore, in terms of maintaining the Earth’s natural ecosystems and resources, researchers need to find sustainable and green methods for producing concrete. The focus of the current research was the use of potentially harmful alternative aggregates to manufacture lightweight concrete bricks. In this study, cement, fine aggregates, and vermiculite were the concrete brick mix components. Three trail mixes were followed by a replacement ratio of 60:40, 50:50, and 40:60 for fine aggregates in bricks. Statistical techniques were exerted to compare all the experimental results. Initially, regression analysis was employed to determine the precise relationship between the dependent and independent variables of the study. Furthermore, the compressive strength of the concrete brick was investigated. As a result of the research, vermiculite concrete bricks with the compressive strengths ranging from 3.2 to 5.9 kN/mm2 and densities ranging from 1,780 to 2,142 kg/m3 were obtained. The regression model captured the variability of the data, as evidenced by the suitable R2 threshold (R2 > 0.9935). Subsequently, every property of the concrete bricks was predicted using regression, surface plots, main plots, and a heatmap. The conclusion of the study demonstrated that the models generated very effective results.

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Potential use of clayey soil in aerated lightweight concrete

Cited by 19 publications

References 16 publications

Investigating the Properties of Foamed Mixture Lightweight Soil Mixed with Bauxite Tailings as Filler

Investigating the Properties of Foamed Mixture Lightweight Soil Mixed with Bauxite Tailings as Filler

Engineering Properties and Applications of Air-Foamed Lightweight Soil

Experimental investigation and optimization of lightweight concrete bricks developed using vermiculite

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