An ultra-lightweight cellular concrete for geotechnical applications – A review

Amran, Mugahed; Onaizi, Ali M.; Федюк, Роман; Danish, Aamar; Vatin, Nikolai Ivanovich; Murali, G.; Abdelgader, Hakim S.; Mosaberpanah, Mohammad Ali; Cecchin, Daiane; Azevedo, Afonso Rangel Garcez de

doi:10.1016/j.cscm.2022.e01096

Cited by 9 publications

(4 citation statements)

References 167 publications

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“…For GY and CC, their REV was define from the size of particles and pores. The GY material had a particle size < 0.2 mm [41,42 The CC material had large artificial pores with a radius between 0.01 and 1 mm [28][29][30]43 The hemp concrete had a representative elementary volume (REV) about 100 cm 3 (side 4.7 cm) according to Collet et al [44] and Evrard [16]. This value is considered for TH an FH materials.…”

Section: Production Of Specimensmentioning

confidence: 99%

Effect of Air Velocity and Initial Conditioning on the Moisture Buffer Value of Four Different Building Materials

et al. 2023

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Porous materials are able to exchange moisture with the surrounding air. The more hygroscopic they are, the more they contribute to regulate ambient humidity. This ability is characterized by the moisture buffer value (MBV) which is measured under dynamic solicitations according to different protocols. The NORDTEST protocol is the most commonly-used. It gives recommendations regarding the air velocity and the ambient conditions for initial stabilization. The purpose of this article is to measure the MBV according to the NORDTEST protocol and to study the effect of air velocity and of initial conditioning on the MBV results for different materials. Two mineral and two bio-based materials are considered: gypsum (GY), cellular concrete (CC), thermo-hemp (TH) and fine-hemp (FH). Following the NORDTEST classification, GY is a moderate hygric regulator, CC is good, TH and FH are excellent. When the air velocity ranges from 0.1 to 2.6 m/s, the MBV of GY and CC materials remains constant, but the MBV of TH and FH materials is highly affected. The initial conditioning has no effect on the MBV, but has an effect on the water content of the material, whatever the material.

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Section: Production Of Specimensmentioning

confidence: 99%

Effect of Air Velocity and Initial Conditioning on the Moisture Buffer Value of Four Different Building Materials

et al. 2023

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“…Lightweight cellular concrete (LCC) or foamed concrete has gained attention in pavement industries due to its low density of 375 to 1600 kg/m 3 and homogenous structure of air bubbles throughout the mixture [1,2]. Studies have extensively examined its mechanical properties like compressive strength and elasticity modulus [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Construction and Design Guidelines for Lightweight Cellular Concrete as Pavement Subbase Material

Oyeyi

Tighe

2023

Maireinfra 2023

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“…Furthermore, according to the research in this field, cement manufacturing accounts for 85% of the total CO 2 emissions during the lifecycle of concrete structures [37][38][39]. It has been used as a locally generated by-product as supplementary cementitious materials and other low-carbon resources in the manufacturing of concrete in order to reduce the reliance on cement in the production of concrete [40][41][42]. In this study, fly ash, created during coal combustion in thermal power plants, was employed as a partial substitute for cement.…”

Section: Introductionmentioning

confidence: 99%

Effect of Steel Fiber on the Strength and Flexural Characteristics of Coconut Shell Concrete Partially Blended with Fly Ash

Prakash¹,

Divyah²,

Srividhya³

et al. 2022

Materials

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The construction industry relies heavily on concrete as a building material. The coarse aggregate makes up a substantial portion of the volume of concrete. However, the continued exploitation of granite rock for coarse aggregate results in an increase in the future generations’ demand for natural resources. In this investigation, coconut shell was used in the place of conventional aggregate to produce coconut shell lightweight concrete. Class F fly ash was used as a partial substitute for cement to reduce the high cement content of lightweight concrete. The impact of steel fiber addition on the compressive strength and flexural features of sustainable concrete was investigated. A 10% weight replacement of class F fly ash was used in the place of cement. Steel fiber was added at 0.25, 0.5, 0.75, and 1.0% of the concrete volume. The results revealed that the addition of steel fibers enhanced the compressive strength by up to 39%. The addition of steel fiber to reinforced coconut shell concrete beams increased the ultimate moment capacity by 5–14%. Flexural toughness was increased by up to 45%. The span/deflection ratio of all fiber-reinforced coconut shell concrete beams met the IS456 and BS 8110 requirements. Branson’s and the finite element models developed in this study agreed well with the experimental results. As a result, coconut shell concrete with steel fiber could be considered as a viable and environmentally-friendly construction material.

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An ultra-lightweight cellular concrete for geotechnical applications – A review

Cited by 9 publications

References 167 publications

Effect of Air Velocity and Initial Conditioning on the Moisture Buffer Value of Four Different Building Materials

Effect of Air Velocity and Initial Conditioning on the Moisture Buffer Value of Four Different Building Materials

Construction and Design Guidelines for Lightweight Cellular Concrete as Pavement Subbase Material

Effect of Steel Fiber on the Strength and Flexural Characteristics of Coconut Shell Concrete Partially Blended with Fly Ash

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