Improvement of Properties of the Argillaceous Soils when Using Additives "Chimston" in Combination with Inorganic Astringent

Trautvain, Anna; Akimov, Andrey; Yakovlev, E. A.

doi:10.4028/www.scientific.net/msf.945.136

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…The most affordable technological solution to the problem lies in the creation of a rigid pavement structure by providing a strong foundation of reinforced and stabilized soils and stone materials using innovative additives of complex action [1][2][3][4][5][6][7].…”

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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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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“…In addition, there are a number of features when working with stabilized soil, which significantly affect the physical and mechanical characteristics of the earth bed's working layer. Reinforcing or stabilization of soils by application of various additives (stabilizers) in combination with cement is the most radical and effective way to save material resources, increase labor productivity, drastically reduce the volume of traffic of road building materials [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Effectiveness of the New Generation of Additives in Improving Physical and Mechanical Properties of Highway Subgrades

Trautvain

Yakovlev

Gridchin

2021

MSF

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At present, the introduction of only organic or inorganic binder is not always sufficient for the practical application of stabilized soils. The research investigated the effect of the stabilizing additives Chimston, Baustab and Dorstab on changing a number of parameters over time, such as: average density, water saturation, ultimate compression and tensile strength, and frost resistance. All the researched parameters were determined at intermediate and target age — 7, 14 and 28 days respectively. Tests to assess the effectiveness of various stabilizing additives in strengthening loamy soil have shown the feasibility of using Baustab and Chimston-3 additives (in the dosage of 2%). Introduction of additives into the soil composition allowed obtaining soil with high strength characteristics and higher frost resistance as compared to the control composition. Composition No.2 has the compressive strength of 5.1 MPa and the tensile strength of 1.6 MPa. Composition No.7 has the limit of compression strength of 5.4 MPa, and the limit of tensile strength of 1.27 MPa. Thus, both compositions have the strength grade M40. Such soil will be subject to minimal subsidence and loss of strength.

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“…The use of imported materials increases the cost of construction. To contribute to the solution of these problems is possible due to the strengthening of the working layer of the soil with mineral or complex astringent [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Properties of the Argillaceous Soils when Using Additives "Chimston" in Combination with Inorganic Astringent

Trautvain

Akimov

Yakovlev

2019

MSF

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Paper observes research of the mechanical characteristics of the stabilized soil with different «Chimston» additives. Current work focuses on the application of the «Chimston-1» and «Chimston-2» produced by Zipo research and production company. Stabilized soil is based on local soils: argillaceous sand ground and sand clay. Chemical additives are mixed with water according to the manufacture’s recommendations. Amount of the «Chimston-1» is 0.07% of the soil. Amount of the «Chimston-2» is 0.01% of the cement. During the research plasticize effect is studied, based on maximum density and optimal humidity. Water saturation, mechanical strength under tension in bending and compression. It is established, application of the "Chimson" additives allow to increase key characteristics of the stabilized soil without increasing of the cement. «Chimston-1» additive has strongly pronounced plasticize effect which allow to increase soil compaction and decrease optimal humidity. Additive "Chimston-2" is a water repellent with a high degree of efficiency with soil stabilization.

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Improvement of Properties of the Argillaceous Soils when Using Additives "Chimston" in Combination with Inorganic Astringent

Cited by 6 publications

References 3 publications

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

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

Analysis of the Effectiveness of the New Generation of Additives in Improving Physical and Mechanical Properties of Highway Subgrades

Improvement of Properties of the Argillaceous Soils when Using Additives "Chimston" in Combination with Inorganic Astringent

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