Soil-cement bricks produced from local clay brick waste and soft sludge from fiber cement production

Kongkajun, Nuntaporn; Laitila, Edward A.; Ineure, Pitcharat; Prakaypan, Wichit; Cherdhirunkorn, B.; Chakartnarodom, Parinya

doi:10.1016/j.cscm.2020.e00448

Cited by 17 publications

(18 citation statements)

References 31 publications

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“…According to Bodian et al (2018), the oxides abundant in laterite are SiO 2 , Al 2 O 3 , Fe 2 O 3 . This presence of this chemical composition of laterite has been monitored and confirmed by Kongkajun et al (2020) through X-ray fluorescence spectrometry. Kongkajun et al (2020) further revealed the presence of other minor oxides including: CaO, K 2 O, TiO 2 .…”

Section: Previous Workmentioning

confidence: 62%

Optimizing stabilization of laterite as walling unit

Mensah¹,

Ameyaw²,

Abaitey³

et al. 2021

JEDT

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Purpose Over dependence on river/sea sand as building material has impacted the environment negatively. However, laterite, which is an environment-friendly indigenous building material in sub-Saharan Africa, has been less exploited as a suitable alternative. This paper aims to ascertain the optimum cement–laterite mix proportion at which laterite can be stabilized for production of walling units. Design/methodology/approach Using an experimental method, laterite was collected from three borrow pit sites. Sieve analysis was performed to determine the particle size distribution. Also, the degree of workability of the cement–laterite mix was ascertained using slump test. Compressive strengths were determined at cement stabilization percentages of 3%, 7% and 10% on 12 cubes of100 mm cast and cured for 14 and 28 days, respectively. Findings The results showed that the lateritic soil investigated, achieves its optimum strength in 28 days of curing, at a stabilization level of 10%. An average compressive strength of 2.41 N/mm2, which is 20.5% greater than the target strength, was achieved. Practical implications To meet the desired compressive strength of alternative walling units while achieving environmental sustainability and efficiency in production, cement stabilization of lateritic soils should become a recommended practice by built environment professionals in sub-Saharan Africa. Originality/value This paper is one of the first research works that attempts to determine the optimum level at which the abundant sub-Saharan laterite can be chemically stabilized for the production of non-load bearing walling units. This research promotes an environment-friendly alternative building material to sea sand, river sand and off-shore sand.

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Section: Previous Workmentioning

confidence: 62%

Optimizing stabilization of laterite as walling unit

Mensah¹,

Ameyaw²,

Abaitey³

et al. 2021

JEDT

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“…× 100 (5) where Wd, Ww and Ws are the weights of the dry sample, sample suspended in the water, and sample just removed from the water, respectively. Moreover, the microstructure of the cured samples was observed by scanning electron microscope (SEM, FEI Quanta 450).…”

Section: Fiber-cement Samples Preparation and Characterizationmentioning

confidence: 99%

“…Using recycled materials is an approach to reduce the carbonfootprint in construction materials and can gain other benefits. Kongkajun et al [5] studied the recycling of wastes from brick and fiber-cement factories. The results showed that both industrial wastes could be used as the partial replacement of Portland cement, laterite, and sand used to produce soil-cement bricks.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Different Crystal Modifiers on Ultra-Low Embodied Energy Curing Fiber-Reinforced Cement Composites

Sonprasarn

Prakaypan²,

Polsilapa

et al. 2022

J Met Mater Miner

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Fiber-reinforced cement composites (FRCC) are widely used in the construction of houses and commercial buildings in many countries such as the United States, the United Kingdom, the European countries, and the Asian countries such as China, India, and Thailand. Conventionally, the FRCC is manufactured from Portland cement, silica sand, and cellulose fiber using the so-called autoclaved curing under a designate hydrothermal condition to accelerate the hydration reaction resulting in superior properties. However, the autoclave-curing process needs a huge investment and generates highly environmental impact specially greenhouse gases due to its heavy energy consumption. Hence, this research aims to develop the FRCC with lowering embodied energy via the energy-free moisture curing process. The use of different crystal modifiers (CM) including synthetic tobermorite, alumino-silicate complex, and modified lithium compound in addition of the usual FRCC composition to drive the hydration kinetic and then properties achieved were characterized by the relevance of higher heat of hydration. Moreover, scanning electron microscope (SEM) were used to reveal the favorable effects of appropriate CM through the microstructure. The results approved that the FRCC with qualified mechanical performance and densified microstructure was successfully produced by using the appropriate moisture curing condition and CM. Additionally, using alumino-silicate complex as CM at 3% of cement weight produced FRCC with the highest modulus of elasticity of 9,067 ± 492 MPa, and the lowest % water absorption of 27.42 ± 1.65 %.

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“…However, the reduction in flue gas, soot, and dust by energy conservation contributes directly to the protection of the environment. In the building sector, a solution is to increase the use of local materials and industrial waste in order to decrease the use of energy-intensive materials such as steel, concrete, and cement [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Thermophysical Properties of the Red Earth Composite Stabilized with Cement Containing Waste Glass Powder

et al. 2022

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The aim of this study was to measure the thermophysical properties (thermal conductivity, volumetric thermal capacity, thermal diffusivity, and thermal effusivity) of red earth stabilized with cement and substituted with waste glass powder. Several samples (red earth) were stabilized with 6% and 12% cement and incorporated with different percentages of waste glass powder, which varied from 10% to 30%. The bulk density of the 12 samples was measured in the dry state and at room temperature. All samples were analyzed by a scanning electron microscope (SEM). The thermal conductivity and specific heat of the composite materials were measured experimentally with a thermal conductivity device (CT meter) in the dry state and at ambient temperature. The experimental results showed a decrease in the thermophysical parameters of stabilized red earth containing 12% cement and substituted by 30% glass powder. The following results were obtained: 53.97% for thermal conductivity, 45.42% for volumetric specific heat, 15.66% for thermal diffusivity, and 49.88% for thermal effusivity. The bulk density of the red earth also decreased by 13.66% in the dry state at ambient temperature. Stabilization with 6% and 12% cement played an important role in the compactness of the material and, consequently, improved its thermophysical performance. The composition of this new ternary material significantly affected the thermophysical properties of the red earth.

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Soil-cement bricks produced from local clay brick waste and soft sludge from fiber cement production

Cited by 17 publications

References 31 publications

Optimizing stabilization of laterite as walling unit

Optimizing stabilization of laterite as walling unit

The Influence of Different Crystal Modifiers on Ultra-Low Embodied Energy Curing Fiber-Reinforced Cement Composites

Experimental Study of the Thermophysical Properties of the Red Earth Composite Stabilized with Cement Containing Waste Glass Powder

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