Comparison of Geopolymer Fly Ash and Ordinary Portland Cement to the Strength of Concrete

Bakri, A.M. Mustafa Al; Kamarudin, Hussin; Binhussain, Mohammed; Nizar, Ismail Khairul; Rafiza, A. R.; Yahya, Zarina

doi:10.1166/asl.2013.5187

Cited by 72 publications

(36 citation statements)

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“…Most of these type of concrete perform constant up to 300°C, and then increases between 650 °C and 800 °C indicates the specific heat has linear relationship with the temperature. However, the highest values of specific heat slightly shows as of fly ash concrete through the temperature compare to others type of concrete may influenced by permeability characteristics of fly ash concrete which are less permeable compare to the others concrete [55,60,[61][62][63][64][65]. The decrease of specific heat values (700°C to 800°C) explains that beyond higher temperature the concrete itself decomposition from solid to liquid.…”

Section: Specific Heatmentioning

confidence: 99%

“…Demirboga et al [61] studied the effect of fly ash on the thermal conductivity of concrete. Class C fly ash was added as replacement for cement by decreasing the cement weights in the ratios of 15 % and 30% by weight ( Figure 5).…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…Concrete is the most widely used construction materials throughout the world made up mixture of binder (such as cement, lime, mud etc. ), coarse aggregate, fine aggregate and binding material with water [1,2]. Next to water, concrete is the second most consumed substances on earth.…”

mentioning

confidence: 99%

“…Next to water, concrete is the second most consumed substances on earth. Concrete is great referring to its capability toward endure high temperatures and fires, due to its high specific heat and low thermal conductivity [1][2][3][4]. Despite concrete is for the most part thought to have great fire resistance [5][6][7], concrete does need one improvement in cooling and heating system of buildings in hash condition which also major contributors to energy consumption worldwide [8][9][10][11][12][13][14][15][16][17][18][19].…”

mentioning

confidence: 99%

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Thermal Insulation Properties of Insulated Concrete

Shahedan¹,

Abdullah²,

Mahmed³

et al. 2019

Rev. Chim.

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In building development, concrete is world most reliable, durable and versatile in construction materials. However, the heating and cooling system of the building is influenced by outside temperature due to extreme weather or areas condition leads to the consumption of a lot of electrical power. Thermally insulated concretes represent alternative construction materials to improve the thermal efficiency in building development. Various construction materials have different thermal insulation properties and thus, their suitability for various conditions vary. Thermal insulation properties are generally identified through specific heat, thermal conductivity, thermal diffusivity, thermal expansion, and mass loss. This paper present review the thermal insulation properties of variations insulated concrete are presently in growing demand of researchers to comfort and resolve prescribed issues related to insulated concrete in enhancing thermal insulation properties as a passive energy saving building.

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Section: Specific Heatmentioning

confidence: 99%

Section: Thermal Conductivitymentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Thermal Insulation Properties of Insulated Concrete

Shahedan¹,

Abdullah²,

Mahmed³

et al. 2019

Rev. Chim.

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“…Geopolymer is inexpensive and ecofriendly materials obtained through synthetic procedures with natural silica-aluminates source and it is very well known in civil engineering field for construction purposes and other engineering application. These materials show excellent mechanical properties, low shrinkage, thermal stability, freeze-thaw, acid and fire resistance, long term durability and recyclability so the application of geopolymer based materials covering many fields [11][12][13][14][15][16][17][18][19][20].…”

mentioning

confidence: 99%

Dynamic Mechanical Properties of Hybrid Layered Silicates/Kaolin Geopolymer Filler in Epoxy Composites

Daud¹,

Kamarudin²,

Osman³

et al. 2017

Mat.Plast.

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Preparation epoxy based hybrid composites were involved kaolin geopolymer filler, organo-montmorillonite at 3phr by using high speed mechanical stirrer. A mechanical behaviour of neat epoxy, epoxy/organo-montmorillonite and its hybrid composites containing 1-8phr kaolin geopolymer filler was studied upon cyclic deformation (three-point flexion mode) as the temperature is varies. The analysis was determined by dynamic mechanical analysis (DMA) at frequency of 1.0Hz. The results then expressed in storage modulus (E�), loss modulus (E�) and damping factor (tan d) as function of temperature from 40 oC to 130oC. Overall results indicated that E�, E�� and Tg increased considerably by incorporating optimum 1phr kaolin geopolymer in epoxy organo-montmorillonite hybrid composites.

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The corrosion properties of steel in pore solutions obtained from alkali‐activated mortars

Gartner

Kosec

Poyet

et al. 2023

Materials & Corrosion

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Alkali‐activated materials (AAMs) are considered a promising alternative to materials made from ordinary Portland cement (OPC). Other than considering the durability of the material itself, the use of AAMs for reinforced concrete elements also raises the question of steel corrosion processes in these materials, which are still relatively unknown. Three different alkali‐activated mortars were prepared for this study, based on either fly ash, slag, or metakaolin. Pore solutions were then extracted from each mortar and chemically analyzed. Electrochemical techniques were used to study the corrosion of steel in synthetic pore solutions containing varying concentrations of chlorides. In parallel, the same corrosion tests were performed in a generic pore solution representing OPC mortar. It was shown that the chemical composition differed in each pore solution tested, thus affecting the corrosion properties of the steel. The addition of chloride also had a varying effect on the corrosion properties of the steel in each type of pore solution tested. This study provided a basic overview of the corrosion behavior and mechanisms of the various AAM environments in comparison to that of OPC.

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Comparison of Geopolymer Fly Ash and Ordinary Portland Cement to the Strength of Concrete

Cited by 72 publications

References 0 publications

Thermal Insulation Properties of Insulated Concrete

Thermal Insulation Properties of Insulated Concrete

Dynamic Mechanical Properties of Hybrid Layered Silicates/Kaolin Geopolymer Filler in Epoxy Composites

The corrosion properties of steel in pore solutions obtained from alkali‐activated mortars

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