Effect of dune sand on the properties of flowing sand-concrete (FSC)

Bouziani, Tayeb; Bédérina, Madani; Hadjoudja, Mourad

doi:10.1007/s40069-012-0006-z

Cited by 69 publications

(26 citation statements)

References 10 publications

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“…The research work carried out by Bouziani et al (2012) dealt with the effect of dune sand, available in huge quantities in these regions, on the properties of flowing sand-concrete (FSC) prepared with different proportions of dune and river sands. Mini-cone slump test, v-funnel flow-time test and viscosity measurements were used to characterize the behaviour of FSC in fresh state.…”

Section: Introductionmentioning

confidence: 99%

Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix

2016

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The purpose of this research is to assess the suitability of dune sands as construction materials, moreover, such a purpose is considered beneficial in assessing appropriate methods for soil stabilization or ground improvement and to assess the suitability of dune sands as subgrade layer for carrying roads and rail foundation. Dune sand samples were collected from a region in Baiji area in Salah-Aldeen governorate, North of Iraq. A grey-colored densified silica fume (SF) and lime (L) are used. Three percentages are used for lime (3%, 6% and 9%) and four percentages are used for silica fume (3%, 6%, 9% and 12%) and the optimum percentage of silica fume is mixed with the percentages of lime. Unsoaked CBR on compacted dune sands treated dune sands with L-SF by mixing and cured for a period of 1 day. The increasing in CBR ranged between 443 -707% at 2.54 mm penetration and 345 -410% at 5.08 mm penetration.El propósito de esta investigación es evaluar el uso de arena de dunas como materiales de construcción. Además, este objetivo permite determinar los métodos apropiados para la estabilización del suelo, el mejoramiento del terreno y la evaluación de pertinencia de la arena de dunas en capas subbase para carreteras y cimientos férreos. Se recolectaron muestras de arena de dunas en el área de Baiji, del comisionado Salah-Aldeen, al norte de Irak. Se utilizó vapor de óxido de silicio (SF, en inglés), grisáceo y densificado, y óxido de calcio (L). Se utilizaron tres porcentajes para el óxido de calcio (3 %, 6 % y 9 %), y cuatro para el óxido de silicio (3 %, 6 %, 9% y 12%) y el máximo porcentaje del óxido de silicio se mezcló con las proporciones de óxido de calcio. Se realizó en seco el Ensayo de Relación de Soporte de California (del inglés California Bearing Ratio, CBR) en arena de dunas compactada y tratada con la mezcla L-SF curada durante un día. El incremento en el ensayo CBR osciló entre 443-707 % en la penetración de 2.5 mm y 345-410 % en la penetración de 5.08 mm. ABSTRACT RESUMEN

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Section: Introductionmentioning

confidence: 99%

Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix

2016

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“…The coefficient a is called the consistency index, which characterises the initial viscosity and the coefficient b is called the flow index. [22] The change of viscosity at different rotational speeds revealed that viscosity decreases with time. It can be observed that at low-rotational speed, a viscous behaviour is marked, whereas at high rotational speed a flowable behaviour is dominant.…”

Section: Effect Of Ds On Viscosity Measurements Of Mortarsmentioning

confidence: 99%

“…The average of viscosity values determined at upwards and downwards of each rotational speed steps were recorded. [22,24] Hardened mortar tests…”

Section: Viscosity Measurement Testmentioning

confidence: 99%

Effect of fine aggregate replacement with desert dune sand on fresh properties and strength of self-compacting mortars

Benabed¹,

Azzouz²,

Kadri³

et al. 2014

Journal of Adhesion Science and Technology

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This paper presents the results of an experimental study that investigated the rheological and mechanical properties of self-compacting mortars incorporating fine dune sand (DS), which has a tight Particle size distribution. Mortar mixtures were prepared with crushed sand (CS) or river sand (RS) in which the fine aggregates were replaced partially by different percentages of DS of 0, 25, 50, 75 and 100%. The effect of DS on the fresh mortars properties was studied using the mini-slump flow, V-funnel flow time and viscosity measurements tests. Compressive strength and flexural strength were determined at age of 3, 7 and 28 days. Experimental results indicate an improvement in fresh rheological without reducing in mechanical properties of self-compacting mortars when fine aggregates were replaced partially with DS (50%). However, at high-level DS replacement (75%) the slump flow decreases. The replacement of the DS to the CS or to the RS shows an increase in the mixture viscosity. In general, the compressive and flexural strength were not significant affected with an increase in DS replacement. Finally, based on the results obtained in this investigation, DS may provide a readily available alternative material as fine aggregates in mortar application.

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“…e results revealed that the desert sand content should not exceed 50% of the total volume of fine aggregate. Rmili et al [12], Bouziani et al [13], Zhang et al [14], Zhang et al [15], Li et al [16], Fu et al [17], Jiang et al [18], and Haifeng et al [19] have also investigated the mechanical properties and influencing factors of desert sand concrete. From the abovementioned literature, it is understood that existing research on desert sand concrete has mainly focused on ordinary concrete, while the application of desert sand to ceramsite lightweight aggregate concrete has not been investigated yet.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Performance Influencing Factors and Reasonable Mixture Ratio of Desert Sand Ceramsite Lightweight Aggregate Concrete

Zhang

Yuan

Zhang

et al. 2020

Advances in Civil Engineering

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e utilization of desert sand for making ceramsite lightweight aggregate concrete is proposed to make full use of local natural resources in the development of a new type of lightweight and load-bearing wall material with good energy conservation, waste utilization, and thermal insulation performances. An orthogonal test was conducted to analyze the effects of the water-binder ratio, sand ratio, desert sand substitution rate, and fly ash content on the slump, apparent density, and tube crushing strength of desert sand ceramsite lightweight aggregate concrete. us, the optimal mixture ratio of the desert sand ceramsite concrete was obtained for the LC20 and LC25 strength grades. Based on two reasonable mixture ratios, the physical and mechanical properties of the desert sand ceramsite concrete were investigated. e results revealed that the water-binder ratio, sand ratio, and desert sand substitution rate were the main influencing factors, and the influence law is essentially consistent with that of ordinary desert sand concrete. Based on the reasonable substitution rate of desert sand, the main physical and mechanical properties of the desert sand ceramsite lightweight aggregate concrete, such as the tube crushing strength, tensile strength, and thermal conductivity, satisfied the requirements of the Chinese code's specifications. In summary, desert sand can replace ordinary sand in ceramsite lightweight aggregate concrete for the production of new lightweight and load-bearing wall materials.

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Effect of dune sand on the properties of flowing sand-concrete (FSC)

Cited by 69 publications

References 10 publications

Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix

Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix

Effect of fine aggregate replacement with desert dune sand on fresh properties and strength of self-compacting mortars

Experimental Study on Performance Influencing Factors and Reasonable Mixture Ratio of Desert Sand Ceramsite Lightweight Aggregate Concrete

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