enhancing the strength of premade foams for foam concrete

Enhancing the strength of pre-made foams for foam concrete ...

Mar 01, 2018  The cellular structure in concrete foams is either manufactured using a pre-made foam, which is mixed with a cementitious paste [12,13] or through a chemical foaming agent that becomes activated in the concrete's environment and releases gas as a result of a chemical reaction [, , , , , ]. In both cases, the small bubbles that are introduced ...

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Enhancing the strength of pre-made foams for foam concrete ...

This stabilizing method is shown to significantly enhance the pore size distribution of foam concretes. The resulting pre-made foams are remarkably more stable than the control foam, and the mechanical properties of the final cellular structure are considerably improved (about 34% in mechanical foaming and 20% in the chemical foaming technique).

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Enhancing the strength of pre-made foams for foam concrete ...

Jan 01, 2018  Chemical and mechanical foaming techniques are commonly used in foam concrete technology for developing lightweight construction materials. The charac Enhancing the strength of pre-made foams for foam concrete applications

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Just How Strong is Polyurethane Concrete Lifting Foam?

The Facts About Concrete Lifting Foam From the Pros. 1. Lifting sunken concrete with polyurethane foams formulated for raising and supporting concrete is a proven mature technology and safe to use on a variety of residential and commercial structures, including: Sidewalks Walkways. Patios Pool Decks. Porches Steps. Driveways Garage Floors.

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Enhancing the strength of pre-made foams for foam concrete ...

Chemical and mechanical foaming techniques are commonly used in foam concrete technology for developing lightweight construction materials. The charac Enhancing the strength of pre-made foams for foam concrete applications

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High strength/density ratio in a syntactic foam made from ...

Sep 15, 2019  Enhancing the strength of pre-made foams for foam concrete applications Cement Concr Compos , 87 ( 2018 ) , pp. 164 - 171 Article Download PDF View Record in

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Foam Concrete Research links – FoamConcreteWorld

This study intends to evaluate the influence of magnetized water on the foam stability, compressive strength, splitting tensile strength, water absorption and micro structure of foam concrete. A total of 9 mixes were prepared with water that passed through a permanent magnetic field for 1, 5 and 10 times at flow speeds of 0.75 m/s, 1.75 m/s and ...

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LIGHTWEIGHT GEOPOLYMER CONCRETE Ailar

Enhancing the strength of pre-made foams for foam concrete applications. Article. Dec 2017; ... This stabilizing method is shown to significantly enhance the pore size distribution of foam ...

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Publications, Centre for Prefabricated Housing Research ...

Enhancing the strength of pre-made foams for foam concrete applications. Cement and Concrete Composites, 87, pp.164-171. Liu, L., Miramini, S. and Hajimohammadi, A., 2019. Characterising fundamental properties of foam concrete with a non-destructive technique. Nondestructive Testing and Evaluation, 34(1), pp.54-69.

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Material Design and Performance Evaluation of Foam ...

Jul 30, 2019  Foam concrete (FC) is a lightweight cementitious material with a cellular structure produced by incorporating air voids into mortar or cement paste. It can be designed to have a density in the range of 200 to 1900 kg/m 3. Foam concrete of density lower than 400 kg/m 3 is used primarily as a filling or insulating material [1,2,3]. Due to the ...

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Preparation and properties of waste-solid based foam ...

Hajimohammadi A, Ngo T and Mendis P 2018 Enhancing the strength of pre-made foams for foam concrete applications[J] Cement and Concrete Composites 87 164-171 Crossref Google Scholar [8]

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Physical and Functional Characteristics of Foam Concrete ...

Abstract With the increase in global warming, the construction sector is trying to find an alternative to ordinary concrete due to its high dead weight and thermal conductivity. Researches are going in different directions and presently the emerging trend is the use of foamed concrete, which is a lightweight concrete having more strength-to-weight ratio with density varing from 300 to 1800 kg/m3.

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Assessment of the use of fiberglass-reinforced foam ...

Aug 07, 2019  Hajimohammadi, A, Ngo, T, Mendis, P (2018) Enhancing the strength of pre-made foams for foam concrete applications. Cement and Concrete Composites 87: 164 – 171 . Google Scholar Crossref

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Material Design and Performance Evaluation of Foam ...

Three-dimensional (3D) printing with foam concrete, which is known for its distinct physical and mechanical properties, has not yet been purposefully investigated. The article at hand presents a methodological approach for the mixture design of 3D-printable foam concretes and a systematic investigation of the potential application of this type of material in digital construction.

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Foam Concrete: A State-of-the-Art and State-of-the ...

Foam concrete (FC) has the potential of being an alternative to ordinary concrete, as it reduces dead loads on the structure and foundation, contributes to energy conservation, and lowers the cost of production and labor cost during the construction and transportation. The paper reports a state-of-the-art review of foam concrete in terms of its components, manufacturing and material properties ...

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Sustainable one-part geopolymer foams with glass fines ...

May 20, 2018  Pre-made foam was added as required to each group of geopolymers in order to target dry densities of 1200, 1000, 800 and 600 kg/m 3. 20% of the required premade foam was initially added to the geopolymer mix to increase the workability of the paste, and the remaining 80% of foam was gently blended in afterwards. The wet foam mixtures were then ...

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Experimental study on performance improvement of anionic ...

Jan 10, 2020  The stability of foam plays a vital role in the quality of foamed concrete. In this paper, foamed concrete with dry density of 600 kg/m 3 and water-cement ratio of 0.5 had been fabricated by a commercially available anionic surfactant foaming agent with the xanthan gum as a foam stabilizer. Some essential tests were performed, like the surface tension, the foaming multiple, the bleeding rate ...

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Select Hub Publications by Dr Ailar Hajimohammadi UNSW ...

Hajimohammadi A; Ngo T; Mendis P, 2018, 'Enhancing the strength of pre-made foams for foam concrete applications', Cement and Concrete Composites, vol. 87, pp. 164 - 171 Hajimohammadi A; Ngo T; Kashani A, 2018, 'Glass waste versus sand as aggregates: The characteristics of the evolving geopolymer binders', Journal of Cleaner Production , vol ...

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Publications, Centre for Prefabricated Housing Research ...

Enhancing the strength of pre-made foams for foam concrete applications. Cement and Concrete Composites, 87, pp.164-171. Liu, L., Miramini, S. and Hajimohammadi, A., 2019. Characterising fundamental properties of foam concrete with a non-destructive technique. Nondestructive Testing and Evaluation, 34(1), pp.54-69.

get price

Material Design and Performance Evaluation of Foam ...

Jul 30, 2019  Foam concrete (FC) is a lightweight cementitious material with a cellular structure produced by incorporating air voids into mortar or cement paste. It can be designed to have a density in the range of 200 to 1900 kg/m 3. Foam concrete of density lower than 400 kg/m 3 is used primarily as a filling or insulating material [1,2,3]. Due to the ...

get price

‪Ailar Hajimohamadi‬ - ‪Google Scholar‬

Enhancing the strength of pre-made foams for foam concrete applications. A Hajimohammadi, T Ngo, P Mendis. Cement and Concrete Composites 87, 164 ... Effects of surface treatments of recycled tyre crumb on cement-rubber bonding in concrete composite foam. A Kashani, TD Ngo, P Hemachandra, A Hajimohammadi. Construction and Building Materials 171 ...

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Physical and Functional Characteristics of Foam Concrete ...

Abstract With the increase in global warming, the construction sector is trying to find an alternative to ordinary concrete due to its high dead weight and thermal conductivity. Researches are going in different directions and presently the emerging trend is the use of foamed concrete, which is a lightweight concrete having more strength-to-weight ratio with density varing from 300 to 1800 kg/m3.

get price

Foam Concrete: A State-of-the-Art and State-of-the ...

Foam concrete (FC) has the potential of being an alternative to ordinary concrete, as it reduces dead loads on the structure and foundation, contributes to energy conservation, and lowers the cost of production and labor cost during the construction and transportation. The paper reports a state-of-the-art review of foam concrete in terms of its components, manufacturing and material properties ...

get price

Preparation and properties of waste-solid based foam ...

Hajimohammadi A, Ngo T and Mendis P 2018 Enhancing the strength of pre-made foams for foam concrete applications[J] Cement and Concrete Composites 87 164-171 Crossref Google Scholar [8]

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Material: Foam Mine Fill

Jun 23, 2020  FMF [12–15]. The concept of FMF is very similar to cellular concrete. A premade foam is added to the backfill mixture to increase the porosity and lower the density. An air-entraining (foaming) agent and a foam generator are required to produce micrometer-scale air

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Select Hub Publications by Dr Ailar Hajimohammadi UNSW ...

Hajimohammadi A; Ngo T; Mendis P, 2018, 'Enhancing the strength of pre-made foams for foam concrete applications', Cement and Concrete Composites, vol. 87, pp. 164 - 171 Hajimohammadi A; Ngo T; Kashani A, 2018, 'Glass waste versus sand as aggregates: The characteristics of the evolving geopolymer binders', Journal of Cleaner Production , vol ...

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Material Design and Performance Evaluation of Foam ...

Three-dimensional (3D) printing with foam concrete, which is known for its distinct physical and mechanical properties, has not yet been purposefully investigated. The article at hand presents a methodological approach for the mixture design of 3D-printable foam concretes and a systematic investigation of the potential application of this type of material in digital construction.

get price

Assessment of the use of fiberglass-reinforced foam ...

Aug 07, 2019  Hajimohammadi, A, Ngo, T, Mendis, P (2018) Enhancing the strength of pre-made foams for foam concrete applications. Cement and Concrete Composites 87: 164 – 171 . Google Scholar Crossref

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Characteristics of Lightweight Cellular Concrete and ...

This study investigated the pore structure and its effects on mechanical properties of lightweight cellular concrete (LCC) in order to understand more and detailed characteristics of such structure. As part of investigation, environment scanning electron microscopes (ESEM) and industrial high-definition (HD) macro photography camera were separately used to capture and compare images of ...

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Cement and Concrete Composites - Academic Accelerator

Enhancing the strength of pre-made foams for foam concrete applications Yifei Hao Liang Cheng Liang Cheng Hong Hao Mohamed A. Shahin Mohamed A. Shahin Evaluation of accelerated degradation test methods for cementitious composites subject to sulfuric acid attack; application to conventional and alkali-activated concretes

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Hybrid machine learning for predicting strength of ...

Mar 11, 2020  Hajimohammadi A, Ngo T, Mendis P (2018) Enhancing the strength of pre-made foams for foam concrete applications. Cem Concr Compos 87:164–171. Article Google Scholar Haykin S (1998) Neural networks: a comprehensive foundation. Prentice Hall

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[PDF] Experimental study on pore structure and mechanical ...

In this paper, foam concrete (FC) was prepared by chemical foaming method. Besides, the effects of different density grades and fly ash content on the pore structure of FC and the mechanical response of FC under static and dynamic forces were discussed. At the same density grade, the FC strength shows the feature of first increasing and then decreasing with the increase of fly ash production.

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