Development of HighStrength Foamed Concrete Compositions

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Development of High-Strength Foamed Concrete Compositions ...

Unlike traditional materials, the development of high-performance foamed concrete with a compressive strength of up to 20 MPa and a density of up to 1400 kg/m3 allows the use of foamed concrete as a constructive material with additional functions including good thermal insulation properties, sound insulation and capillary porosity needed to ensure hydrothermal conditions.

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Development of High-Strength Foamed Concrete Compositions ...

Unlike traditional materials, the development of high-performance foamed concrete with a compressive strength of up to 20 MPa and a density of up to 1400 kg/m ³ allows the use of foamed concrete ...

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Eva Namsone's research works Riga Technical University ...

Eva Namsone's 9 research works with 62 citations and 1,627 reads, including: Development of High-Strength Foamed Concrete Compositions

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Microstructure of high-strength foam concrete - ScienceDirect

2009-7-1  This change to the air voids results in a reduction of the compressive strength when comparing the samples A/1/0.05 with E/2/0.10/0.45/10/0.85, because the hardened cement paste matrix solidified due to the reduced water/cement ratio and due to the use of admixtures and additives, as shown by the analysis of the reference samples.

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Solid State Phenomena Vol. 320 p. 4 Scientific.Net

Abstract: Unlike traditional materials, the development of high-performance foamed concrete with a compressive strength of up to 20 MPa and a density of up to 1400 kg/m 3 allows the use of foamed concrete as a constructive material with additional functions including good thermal insulation properties, sound insulation and capillary porosity needed to ensure hydrothermal conditions.

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DESIGNING MIX COMPOSITION OF FOAMED CONCRETE WITH HIGH

2015-7-7  Abstract: The methods used for designing normal concrete mix compositions cannot be used for designing foamed concrete mix compositions. During the mix design for normal concrete the compressive strength required normally dictates the water/cement ratio and the workability gives an indication of the volume of water needed.

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Experimental Research on Properties of High-Strength ...

The results indicate that foamed concrete with a density of 800-1,500 kg/m (3) and compressive strength of 10-50 MPa can be made by using silica fume and PP fiber. Fine silica fume and PP fiber...

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Foamed Concrete Scientific.Net

Abstract: Unlike traditional materials, the development of high-performance foamed concrete with a compressive strength of up to 20 MPa and a density of up to 1400 kg/m 3 allows the use of foamed concrete as a constructive material with additional functions including good thermal insulation properties, sound insulation and capillary porosity needed to ensure hydrothermal conditions.

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Durability Properties of High Performance Foamed Concrete ...

2017-1-1  Foamed concrete (FC) is promising material in modern building industry because of simple technology and wide range of properties may be achieved. Basic problems of FC are shrinkage and decreased strength, comparing to aerated autoclaved concrete. In the case of wet and cold climate, durability also plays in an important role.

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Ash content for optimum strength of foamed concrete ...

2002-2-1  The strength of foamed concrete was represented by the following equation: (2) f c = (λ+β ln t) (1−p) α with (3) β=β 1 +β 2 (a / c)+β 3 (a / c) 2 (4) λ=λ 1 +λ 2 (a / c)+λ 3 (a / c) 2 where fc =compressive strength (MPa), t =time since casting (days), p =porosity (as a fraction), a/c=ash/cement ratio (by weight) and α, β and λ are constants,.

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COMPRESSIVE STRENGTH AND SHRINKAGE OF FOAMED

2016-8-3  strength development. Relation between compressive strength and age of PFA concretes for binder sand ratio equal to 1/2 0 2 4 6 8 10 12 14 16 0 3 7 28 56 Age of concrete (days) Compressive Strength (Mpa) 0% 10% 20% 30% 40% 50% 60% Figure 5 Compressive strength development of 1/2 (binders/sand) foamed concrete mix Relation between compressive ...

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Ash content for optimum strength of foamed concrete ...

2002-2-1  Foamed concrete mixtures of different casting densities (1000, 1250 and 1500 kg/m3) with different percentages of ash replacement (50%, 66.7% and 75%). 2.2. Test procedures. 2.2.1. Compressive strength. The compressive strength of foamed concrete was

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COMPRESSIVE STRENGTH OF FRACTAL-TEXTURED

2020-11-30  dict compressive strength of foamed concrete,3,12–14 which contain large amount of air voids. In terms of microstructure, air voids that govern the poros-ity of foamed concrete are considered to have a notable impact on compressive strength.12,15,16 The theoretical porosity of foamed concrete has been used to predict the compressive strength ...

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Development of Quick-Solidifying Foamed Concrete for

2020-11-17  Coal mine fires have continuously remained the primary disasters in coal mining worldwide. Cement-based inorganic foam concrete, e.g., for engineering filling and coal mine fire extinguishing, has become the first choice for responding to such fires. The objective of this study was to propose quick-solidifying foamed concrete

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Heat evolution due to cement hydration in foamed concrete

2016-4-8  The calculation of foamed concrete mix compositions can be seen in Table 2 and Table 3. In Table 2 the cement content was kept constant for different mix compositions in order to look into the influence of foamed concrete density and pour size on temperature development. In the mixtures presented in Table 3,

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Foam Concrete: A Review - researchgate

2021-7-30  The advantages of foamed concrete are its high flowability, low self-weight, minimal consumption of primary aggregate, controlled low strength and excellent thermal insulation properties.

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US6220354B1 - High strength foamed well cement ...

US6220354B1 US09/695,578 US69557800A US6220354B1 US 6220354 B1 US6220354 B1 US 6220354B1 US 69557800 A US69557800 A US 69557800A US 6220354 B1 US6220354 B1 US 6220354B1 Authority

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(PDF) Foamed concrete containing fly ash: Properties and ...

The use of foamed concrete (FC) with cement partially replaced by fly ash (FA) for urban abandoned underground-space backfilling was examined. The influence of density, water-binder ratio, and FA ...

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Development of Thermal Insulating Lightweight Foamed ...

2020-2-6  Foamed concrete is fire and water resistant while having good thermal and sound insulation properties. The most attractive characteristics of foamed concrete are its low density, self-compacting and self-levelling nature, low dimensionality and its flowability [2, 8].A stable air cell structure is developed in the matrix of the foamed concrete, created by the homogeneous cells (air voids) due ...

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CA2316711A1 - Early-enhanced strength cement compositions ...

The present invention provides improved early enhanced strength cement compositions and methods. The cement compositions can be utilized in surface construction projects as well as in the construction of oil, gas and water wells. The improved cement compositions of this invention are basically comprised of a hydraulic cement, water present in an amount sufficient to form a slurry and ...

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Development of Quick-Solidifying Foamed Concrete for

2020-11-17  Coal mine fires have continuously remained the primary disasters in coal mining worldwide. Cement-based inorganic foam concrete, e.g., for engineering filling and coal mine fire extinguishing, has become the first choice for responding to such fires. The objective of this study was to propose quick-solidifying foamed concrete

Get price

Foamed cement compositions comprising oil-swellable ...

High strength foamed well cement compositions and methods: December, 2002: Chatterji et al. 6494951: Cementing compositions using dry cementitious materials having improved flow properties: December, 2002: Reddy et al. 6488763: Light weight high temperature well cement compositions and methods: December, 2002: Brothers et al. 6478869

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IJCE - FORMATION OF STRUCTURE MAGNESIUM

2017-2-6  FORMATION OF STRUCTURE MAGNESIUM FOAMED CONCRETE MIRYUK OLGA ... energy intensity of production and use, intensive hardening, high strength characteristics. The main reason for holding back ... Development of porous compositions of the mixed magnesia binders provides resource-saving production, allows the use of a wide range of ...

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Foamed cement compositions, additives, and associated ...

2005-5-19  High strength foamed well cement compositions and methods: 2002-12-31: Chatterji et al. 6478868: Early-enhanced strength cement compositions and methods: 2002-11-12: Reddy et al. 6457524: Well cementing compositions and methods: 2002-10-01: Roddy: 6454008: Foamed fracturing fluids, additives and methods of fracturing subterranean zones: 2002-09 ...

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COMPRESSIVE STRENGTH OF FRACTAL-TEXTURED

2020-11-30  dict compressive strength of foamed concrete,3,12–14 which contain large amount of air voids. In terms of microstructure, air voids that govern the poros-ity of foamed concrete are considered to have a notable impact on compressive strength.12,15,16 The theoretical porosity of foamed concrete has been used to predict the compressive strength ...

Get price

US6478868B1 - Early-enhanced strength cement compositions ...

The present invention provides improved early-enhanced strength cement compositions and methods. The cement compositions can be utilized in surface construction projects as well as in the construction of oil, gas and water wells. The improved cement compositions of this invention are basically comprised of a hydraulic cement, water present in an amount sufficient to form a slurry and ...

Get price

US6153005A - Foamed concrete composition and process ...

The present invention describes fluorochemical foam stabilizers used in combination with surfactants to yield foams that are exceptionally stable in cementitious media. The stabilized foams that incorporate these fluorochemical agents are useful as novel ultra-lightweight foam aggregates in concrete compositions of tailorable density, strength, and other properties.

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The performance of ultra-lightweight foamed concrete ...

2021-4-29  The compressive strength of the foamed concrete, in comparison to control specimen, was significantly improved by 20% and 25% when cement was replaced with 5 wt.-% and 10 wt.-% of NS. This effect is attributed to physical role in compacting the solid structure and reducing the contact area between foam bubbles. 4.

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Residual Mechanical Properties of High-Strength Concretes ...

This paper presents the results of a study on the effect of high temperatures on the mechanical properties of high-strength concretes. Mixtures were prepared with water to cementitious material ratios of 0.40, 0.35, and 0.30 containing silica fume at 0, 6, and 10% cement replacement.

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8 Evaluation of Engineering Properties of Ultra ...

2020-5-15  lightweight foamed concrete produced using the pre-foamed method. Four ultra-lightweight foamed concrete mixtures were designed with the target dry densities of 500, 600, 700, and 800 kg/m 3 corresponding to the foam contents of 7.1, 5.3, 4.2 and 2.7%. It is noted that the foam was prepared prior to be used by a foam generator

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