Assessing the engineering properties of concrete made with fine dune sands: an experimental study

Seif, El-Sayed Sedek Abu

doi:10.1007/s12517-011-0376-6

Cited by 55 publications

(21 citation statements)

References 6 publications

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“…The first attempts to evaluate the suitability of this soil as construction material was published by Khan (1982) [14], based on the analysis of several samples from Libya, where relevant implications of its utilization in highways are discussed, whereas Al-Sanad and Bindra (1984) [15] analyzed different samples collected from dune sands in Saudi Arabia. After those preliminary investigations, the early systematic geotechnical characterizations of aeolian sands, supported by laboratory-tests, were published in [16][17][18][19][20][21][22][23][24][25], concluding with guidelines for its application for construction purposes. A comprehensive review of the most common geotechnical properties of aeolian sands in the world, extracted from a huge collection of bibliographic sources, can be found in Elipe and Lopez-Querol [26].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

López‐Querol

Arias-Trujillo

GM-Elipe

et al. 2017

Construction and Building Materials

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The improvement reached on the compaction and bearing capacity of aeolian sand collected in Jeddah (Saudi Arabia) after its stabilization with Portland cement is evaluated, comparing the behavior for both treated and untreated samples. With the aim of using this type of soil in the construction of embankments for road or railway applications, the results obtained have been evaluated in terms of maximum dry density, optimum moisture content (compaction test) and bearing capacity (CBR). Special attention has been paid to the influence of the confining conditions on the results, scarcely analyzed in the literature, by comparing the load-displacement curves during penetration stage in the CBR tests for both confined and unconfined specimens. Different contents of Portland cement have been explored (out of 6% of dry soil weight) to stabilize this material. The results obtained show a clear linear correlation between of compaction characteristics and CBR respect to the percentage of cement, obtaining, as expected, higher improvement for treated-material with higher content of cement, also strongly influenced by the confinement state. Thanks to this treatment, it is possible to employ this material in applications with low-confinement support, which is impossible without a previous proper stabilization. Finally, two practical indices have been defined to measure the degree of improvement reached, involving both cement content and confinement.

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Section: Introductionmentioning

confidence: 99%

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

López‐Querol

Arias-Trujillo

GM-Elipe

et al. 2017

Construction and Building Materials

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“…In order to meet the requirements of engineering construction using local resources and reducing the transportation costs, many research works have been conducted to use dune sand as a fine aggregate to make concrete, especially in desert regions [5][6][7]. The fineness modulus of dune sand is usually less than 1.5 or the average particle size is less than 0.25 mm which belongs to superfine sand [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Performance and Microstructure of Cementitious Materials Made with Dune Sand

Jiang

Zhou

Tao

et al. 2016

Advances in Materials Science and Engineering

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This paper presents the results of an investigation on the utilization of dune sand from waterway regulation engineering as the main raw materials to produce cementitious materials. The mechanical and durability properties of the cementitious materials were studied. Furthermore, a scanning electron microscope (SEM) and mercury intrusion porosimeter (MIP) were used to identify the microstructure of the specimens. The results show that the compressive and splitting tensile strength of cementitious materials can be improved due to the addition of ground granulated blast-furnace slag (GGBS) which mainly attributes to a better grain size distribution and pozzolanic effect compared to the specimen added cement alone. The specimen with the addition of suitable cement, GGBS, and gypsum shows low dry shrinkage and excellent abrasion resistance. Correspondingly the specimens present a lower porosity and total volume of pores at different curing ages. The SEM observation indicates that there are quite a lot of hydrate products such as calcium silicate hydrate gel in the matrix which verifies the formation of cementitious compounds. The results obtained suggest that there is potential in manufacturing cementitious material with dune sand in substitution of ordinary concrete to use in hydraulic engineering.

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“…Jin et al [ 6 ] studied the mechanical properties of concrete using Maousu sand as fine aggregate, arguing that desert sand can act as a fine aggregate for concrete in general civil engineering. Researchers [ 7 , 8 , 9 ] proved that sand in the desert can be used to make concrete mixtures without harmful effects. In addition, Arroudj et al [ 10 ] used desert sand for ultra-high-performance concrete and found that when desert sand was combined with the addition of amorphous morphology (blast slag or silica fume), it can compact the microstructure of concrete and improve the strength.…”

Section: Introductionmentioning

confidence: 99%

Research on the Effect of Desert Sand on Pore Structure of Fiber Reinforced Mortar Based on X-CT Technology

Shi

Wang

et al. 2021

Materials

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Concrete is a multi-phase, porous system. The pore structure has an important influence on the properties of the concrete. In this paper, a kind of fiber reinforced mortar was prepared with desert sand and its pore structure was studied. The MIP technique was used to investigate the pore structure characteristics between 1 nm and 500 μm (in diameter). Meanwhile, the μX-CT technique was used to study the pore structure characteristics above 200 μm. It was found that the total porosity tends to decrease first and then increase as the dosage of desert sand increased. The porosity decreased gradually from the upper to bottom area inside the sample, and the diameter of the air voids near the upper area became larger. After curing for 28 days, the compressive strength of fiber reinforced mortar reached the maximum when the content of desert sand was 50%. In conclusion, the appropriate amount of desert sand can reduce the porosity of the fiber reinforced mortar to some extent and the number of large size air voids can be significantly reduced, which improves the pore structure and the mechanical properties of the fiber reinforced mortar.

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Assessing the engineering properties of concrete made with fine dune sands: an experimental study

Cited by 55 publications

References 6 publications

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

Improvement of the bearing capacity of confined and unconfined cement-stabilized aeolian sand

Experimental Study on the Performance and Microstructure of Cementitious Materials Made with Dune Sand

Research on the Effect of Desert Sand on Pore Structure of Fiber Reinforced Mortar Based on X-CT Technology

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