Superplasticizer effect on cement paste structure and concrete freeze-thaw resistance

Shuldyakov, Kirill; Kramar, L. Y.; Trofimov, B Ya; IVANOV, I.M.

doi:10.1063/1.4937881

Cited by 9 publications

(7 citation statements)

References 3 publications

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“…4), особенно с применением поликарбоксилатного суперпластификатора. Это подтверждает ранее выявленные сведения [7] о том, что поликарбоксилатный СП (Glenium АСЕ 430) в сравнении с нафталинформальдегидным СП (СП-1) формирует более плотную, состоящую из слабозакристаллизованных гидратных фаз, структуру цементного камня.…”

Section: оценка физических показателейunclassified

“…Такие бетоны должны отвечать высоким требованиям по прочности, морозостойкости, водонепроницаемости, сульфатостойкости и, как следствие, долговечности [1]. Современные тенденции развития технологии вяжущих веществ и бетонов на их основе характеризуются усложнением композиций применяемых материалов и добавок для получения изделий с высокими эксплуатационными характеристиками [3][4][5][6][7]. В связи с этим разработка высокофункциональных бетонов требует максимально глубокого понимания механизмов гидратационного твердения, которые могут быть существенно дополнены методом калориметрии [8][9][10][11].…”

Section: Introductionunclassified

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Influence of the Microsilica-Superplasticizer Complex on Formation of Structure and Properties of Cement Stone

Иванов¹,

Крамар²,

Кирсанова³

et al. 2018

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Рис. 1. Тепловой поток за индукционный и ускоренный периоды гидратации цемента в зависимости от времени и вводимых добавок Рис. 2. Тепловая энергия гидратации цемента в зависимости от времени и вводимых добавок Иванов И.М., Крамар Л.Я., Влияние комплекса «микрокремнезем-суперпластификатор» Кирсанова А.А., Тьери В. на формирование структуры и свойств цементного камня

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Section: оценка физических показателейunclassified

Section: Introductionunclassified

Influence of the Microsilica-Superplasticizer Complex on Formation of Structure and Properties of Cement Stone

Иванов¹,

Крамар²,

Кирсанова³

et al. 2018

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“… RESULTS To carry out the research we used the concrete mixture, the composition of which we had designed earlier, and which has the following properties: B60, concrete workability grade P1 (slump of concrete cone in the range of 3-5 cm), F 2 300, W16 [10].…”

Section: Methodsmentioning

confidence: 99%

“…Nowadays there is no difficulty in obtaining modern high performance concrete with compression strength В60 and higher [9,10]. When producing articles out of such high performance concrete, factories of construction industry widely use steam curing in order to speed up turnaround of molds and gain an economic effect.…”

Section: Introductionmentioning

confidence: 99%

Influence of Steam Curing on Properties of High Performance Pavement Concrete

Schuldyakov¹,

Averina²,

IVANOV³

et al. 2017

dtetr

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Abstract. Nowadays a technology of road construction with the use of reinforced concrete slabs is widespread. When producing such slabs, factories apply steam curing to speed up turnaround of molds and gain an economic effect. This paper presents the results of the study focused on the influence of different steam curing regimes on the structure of high performance pavement concrete, produced with the use of a complex additive "GleniumACE 430 + silica fume".

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“…The use of polycarboxylate ester superplasticizer facilitates the formation of fiber cement composite structures. It was established in [46] that polycarboxylate SP GleniumACE 430 applied in cement paste facilitates the formation of poorly crystalline hydrate phases consisting mainly of hydrated silicates (C-S-H (II) phase) or tobermorite gel. Polycarboxylate ester superplasticizer or polycarboxylate provides the dispersion of cement particles by steric stabilization, instead of electrostatic repulsion.…”

Section: Mechanical Properties Of Fiber-reinforced Cement Mortarmentioning

confidence: 99%

Investigation of Waste Paper Cellulosic Fibers Utilization into Cement Based Building Materials

et al. 2018

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Abstract:Recently, the utilization of renewable natural cellulosic materials, such as wood, plants, and waste paper in the preparation of building materials has attracted significant interest. This is due to their advantageous properties, low environmental impact and low cost. The objective of this paper is to investigate the influence of recycled cellulosic fibers (in the amount 0.5 wt % of the filler and binder weight) and superplasticizer (in the amount 0.5 wt % of the cement weight) on the resulting properties of cement composites (consistency of fresh mixture, density, thermal conductivity, and compressive and flexural strength) for hardening times of 1, 3, 7, 28, and 90 days. Plasticizer use improved the workability of fresh cement mixture. In comparison to the reference sample, the results revealed a decrease in density of 6.8% and in the thermal conductivity of composites with cellulosic fibers of 34%. The highest values of compressive (48.4 MPa) and flexural (up to 7 MPa) strength were achieved for hardened fiber cement specimens with plasticizer due to their significantly better dispersion of cement particles and improved bond strength between fibers and matrix.

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Superplasticizer effect on cement paste structure and concrete freeze-thaw resistance

Cited by 9 publications

References 3 publications

Influence of the Microsilica-Superplasticizer Complex on Formation of Structure and Properties of Cement Stone

Influence of the Microsilica-Superplasticizer Complex on Formation of Structure and Properties of Cement Stone

Influence of Steam Curing on Properties of High Performance Pavement Concrete

Investigation of Waste Paper Cellulosic Fibers Utilization into Cement Based Building Materials

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