Development of Component Composition of Engineered Cementitious Composites

Sydor, Nazar; Marushchak, Uliana; Braichenko, Serhii; Rusyn, Bohdan

doi:10.1007/978-3-030-57340-9_56

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…The micromechanics model involves achieving the packing effect and use of fly ash to reduce the consumption of binder. It was shown that the optimal binder-sand ratio for Engineered Cementitious Composites is 2:1 (Sydor, 2021). The using of fly ash which has low activity leads to decreasing of compressive strength in both early and late hardening time.…”

Section: Resultsmentioning

confidence: 99%

Esigning of Alkaline Activated Cementing Matrix of Engineered Cementitious Composites

Marushchak¹,

Sanytsky²,

Sydor³

et al. 2021

Theory build. pract.

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The development of high-performance materials, which are characterized by high compressive and flexural strength, durability and performance properties, is an urgent problem of modern construction. Engineered cementitious composites are one such material. Improving of properties of composites is achieved by partial replacement of cement with supplementary cementitious materials. The ratio of binder and filler components and superplasticizer consumption were selected. The optimal ratio of cement:fly ash:sand is 1:1:1 and the dosage of polycarboxylate superplasticizer is 0.75% by weight of the binder. The reduction of the negative impact of the increased amount of fly ash, which is characterized by low reactivity, is provided by the introduction of metakaolin and alkaline hardening activator. Alkaline activated cement system is characterized by increasing of the early strength in 1.5 times comparison with equivalent mixture without alkaline activator. Strength of alkaline activated cementing matrix after 28 days is 66.1 MPa and specific strength Rc2/Rc28 is 0.61.

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Section: Resultsmentioning

confidence: 99%

Esigning of Alkaline Activated Cementing Matrix of Engineered Cementitious Composites

Marushchak¹,

Sanytsky²,

Sydor³

et al. 2021

Theory build. pract.

Self Cite

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“…The use of engineering cementitious composites (ECC)a developed class of dispersion-reinforced materials based on Portland cementmakes it possible to increase the load-bearing capacity, stability under various static and dynamic influences, and the durability of building structures due to the controlled cracking process. However, ECC uses a significant amount of cementitious materials, often up to 70%, which leads to significant shrinkage deformations, limiting dimensional stability and increasing the cost of the material [8,9]. Supplementary cementitious materials, including ultra-dispersed mineral additives, are used to improve the quality of concrete [10,11].…”

Section: Introductionmentioning

confidence: 99%

Badania nad odpornością powłok ochronnych dla betonu na działanie wilgoci atmosferycznej

Sydor,

Margal,

Gayda

2024

Bud-Arch

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The development of the construction industry has led to increased requirements for the operational properties of building materials in general and concrete in particular. Although concrete is designed primarily to withstand structural loads, it must also resist environmental influences to increase its durability. This article presents the results of the influence of the components of protective coatings on the hydro-physical properties of concrete. The edge wetting angle in concrete with a protective coating ranges from 95 to 101 degrees, which is about twice that of uncoated concrete. The mass of concrete under the influence of hygroscopic moisture increases, and after 30 days of exposure, it is 1.1–1.6 wt. % compared to 5.7–5.8 wt. % for control samples. The minimum increase (1.1–1.2 wt. %) is achieved when using coatings with the largest amount of heat-resistant varnish KO-08. The water absorption of the developed coating compositions decreases after 30 days of being in water from 5.2 to 1.6–2.2 wt. % for C20/25 concrete. Low temperatures negatively affect the hydrophysical properties of protective coatings, but only slightly. It has been found that water absorption increases by approximately 20 %.

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Impact of Polypropylene Fibers on the Properties of Engineered Cementitious Composites

Marushchak

Sydor

Margal

2022

Lecture Notes in Civil Engineering

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Development of Component Composition of Engineered Cementitious Composites

Cited by 8 publications

References 15 publications

Esigning of Alkaline Activated Cementing Matrix of Engineered Cementitious Composites

Esigning of Alkaline Activated Cementing Matrix of Engineered Cementitious Composites

Badania nad odpornością powłok ochronnych dla betonu na działanie wilgoci atmosferycznej

Impact of Polypropylene Fibers on the Properties of Engineered Cementitious Composites

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