Efficiency of Stabilizers of Various Composition for  Strengthening the Soil With a Mineral Binder

Дмитриева, Т. В.; Markova, I.; Строкова, В.; Bezrodnykh, A A; Kucyna, N.

doi:10.34031/2618-7183-2020-3-1-30-38

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…Foreign scientists have carried out research on strengthening the soil of the road base and base layer [1,5,10,11,13,14]. Also, research works on strengthening of gravels were carried out by scientists of the CIS [2,3,4,6].…”

Section: Methodsmentioning

confidence: 99%

Mechanical properties of reinforced loess soils in road pavements

Hudaykulov,

Makhmudova,

Ikramova

et al. 2024

E3S Web of Conf.

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The modern development of road construction promotes the tasks of not only increasing the strength of road structures, but also the need to effectively use local materials and soils in road construction. During the design and construction of highways, many road scientists of the world have carried out their scientific and research work on soil strengthening based on the road bed. Several methods and techniques have been developed for this. Also, developed countries are producing a lot of surfactants, modifiers and additives for soil strengthening. In this article, research work was carried out in laboratory conditions to study the mechanical properties of soil strengthened with the help of a modifier. Measurement, comparison, experimental laboratory, mathematical statistical analysis in the processing of test results, analytical methods specified in regulatory documents were used in the performance of research work. The results of the conducted laboratory research are specific to loess soils found in the conditions of Uzbekistan. The use of construction work on the foundation of the road bed from reinforced soil allows to reduce the volume of construction work, reduces the consumption of transported sand and gravel materials, and increases the service life of the road.

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Section: Methodsmentioning

confidence: 99%

Mechanical properties of reinforced loess soils in road pavements

Hudaykulov,

Makhmudova,

Ikramova

et al. 2024

E3S Web of Conf.

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“…В настоящее время разработано много поверхностно-активных веществ (модификаторов) для использования на автомобильных дорогах развитых стран, многие из которых также не дали эффекта на практике. По этой причине были проведены экспериментальные испытания в лабораторных условиях применения модификатора Акропол ГСМ [13,14], разработанного зарубежными странами и широко используемого на практике, на земляном полотне. Образцы подготовили для проведения исследовательских работ с использованием модификатора.…”

Section: Introductionunclassified

Results of Laboratory Studies of Strengthening Subgrade Soil with Modifier

Hudaykulov,

Aralov

2024

Struct. Mech. of Eng. Const. and Build

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Current modern trends in road construction are the increase in traffic intensity and the carrying capacity of motor transport, as well as the expansion of the road network, including local roads. These trends put forward the task of not only increasing the durability of road structures, but also the use of local materials and soils in the construction of highways. Several methods have been developed to strengthen the soils of the road base. A variety of surfactants, modifiers and additives are also produced to strengthen the roadbed. Many of them have not shown their effectiveness in practice. Therefore, there is a need for plenty laboratory and field studies on this topic. Laboratory studies were carried out to investigate the effect of the modifier on the roadbed soil. The type of soil and its maximum density were determined at optimal humidity. Based on this, cement and a modifier were introduced into the soil composition, density and compressive strength were determined. The results of a scanning electron microscope (SEM) were obtained to study the effect of the modifier on the roadbed soil. Laboratory studies and SEM-analysis have shown that the addition of a modifier to the soil leads to an increase in its maximum density, a significant increase in compressive strength and that the modifier serves to improve the binding properties by forming a crystalline bond with cement.

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“…At the same time, the cement for road construction is required to not only be highly active chemically, but also to provide chemical and corrosion resistance. Unfortunately, to date, cement manufacturers do not pay the necessary attention to this requirement, causing concrete products for road construction to lose their operational reliability rapidly [7][8][9][10][11]. In this regard, the fragility of the resulting pavement leads to the need for its untimely repair or replacement.…”

Section: Introductionmentioning

confidence: 99%

Reducing the environmental burden during the reconstruction of highways by extending their life cycle

Trautvain,

Yadykina

2024

BIO Web Conf.

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The article presents the results of studies on assessing the effectiveness of using stabilizing additives of complex action (Chimston) to increase the bearing capacity of structural layers of the base of road pavements of the Far North highways due to its use in strengthening various types of non-cohesive soils in combination with an inorganic binder. It was found that the application of Chimston is unconditionally required, as the additive in the system allows one to obtain a material that meets the regulatory requirements for frost resistance and to ensure the reliable operation of the road structure in the conditions of the Far North. The maximum efficiency in terms of physical and mechanical characteristics with Chimston in the system was demonstrated by compositions based on crushed sand stabilized with 7 % cement, and for crushed stone-sand mixes of types C-7 and C-6 with 9 % cement. Based on the analysis of the obtained results, it can be assumed that the stabilizing additive Chimston, adsorbing on the surface of particles of sandy and coarse-grained soil, interacts with the inorganic binder of the composite. It affects the mechanism of its hydraulic activity in the process of gaining brand strength, which was most confirmed in the study of strength characteristics of samples based on coarse-grained soils. Thus, with an increase in the amount of binder in the presence of the Chimston additive, a higher increase in the compressive strength of the samples is observed. An increase in the amount of binder when adding an additive to the composition of samples based on coarse-grained soils contributes to the maximum gain in compressive strength of samples containing 9% cement. The obtained results allow for the conclusion that the technology of using the polymer stabilizer Chimston in the construction of structural layers of the base of road clothes based on loose soils can provide the required transport and operational condition of road structures with a life cycle of 24 years. It will also significantly reduce the volume of industrial waste used as pavement, as well as reduce the consumption of unsustainable Portland cement.

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Efficiency of Stabilizers of Various Composition for Strengthening the Soil With a Mineral Binder

Cited by 10 publications

References 3 publications

Mechanical properties of reinforced loess soils in road pavements

Mechanical properties of reinforced loess soils in road pavements

Results of Laboratory Studies of Strengthening Subgrade Soil with Modifier

Reducing the environmental burden during the reconstruction of highways by extending their life cycle

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