Corrosion performance of rice husk ash blended concrete

Saraswathy, V.; Song, Hao

doi:10.1016/j.conbuildmat.2006.05.037

Cited by 273 publications

(115 citation statements)

References 7 publications

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“…Rice Husk Ash (RHA) is a one of the main source of silica (SiO 2 ) [4,9,10]. This material is suitable to be used as fillers in the production of Portland cement or geopolymers.…”

Section: Introductionmentioning

confidence: 99%

Development of Hybrid Composite Rice Husk Ash (RHA)–Geopolymer for Bricks Bearing Buildings

2017

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Abstract. The aim of this study is to synthesize hybrid composite rice husk ash (RHA)-geopolymer as materials for bricks bearing buildings application. Class-C fly ash was used as raw material and rice husk ash (RHA) taken directly from the field, washed and dried at 100 o C for 4 hours. Geopolymers were synthesized through alkali activation method at 60°C for 1 hour with its molar oxide ration of SiO 2 /Al 2 O 3 = 3.0, Na 2 O/SiO 2 = 0.2, and H 2 O/Na 2 O = 10. There were three series of samples produced by mixing fly ash with addition of 5%, 10% and 15% RHA (relative to the mass of fly ash). The samples were tested after 7 days. The highest compressive strength were 26 MPa which is reached by samples containing 10% RHA. The fire resistance measurement showed that the addition of RHA improved fire retardancy of geopolymers. The samples were immersed in 1 M H 2 SO 4 solution for 4 days for acid resistance examination. The X-Ray Diffraction was performed to examine the chemical compositions of the samples before and after the test took place. Scanning Electron Microscopy (SEM) was performed to examine the morphology of these samples surfaces. The addition of 10% RHA in geopolymer showed its excellent properties in terms of mechanical strength, thermal properties, and acid resistance. The study suggests that hybrid composite RHA-geopolymer and can be developed as bricks bearing buildings.

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“…Rice Husk Ash (RHA) is a one of the main source of silica (SiO 2 ) [4,9,10]. This material is suitable to be used as fillers in the production of Portland cement or geopolymers.…”

Section: Introductionmentioning

confidence: 99%

Development of Hybrid Composite Rice Husk Ash (RHA)–Geopolymer for Bricks Bearing Buildings

2017

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“…Blending RHA into concrete structures enhanced compressive strength and degraded water permeability in both the chemical and physical properties of concrete. The addition of RHA reduces material costs and CO 2 emissions because of the reduced utilization of cement [94]. Tangchirapat et al [95] proved that the use of ground RHBA in recycled aggregate concrete enhanced compressive strength, although an increase in the slump loss of concrete was also observed.…”

Section: Application Of Byproducts and Waste Products As Potential Ramentioning

confidence: 99%

Green Material Prospects for Passive Evaporative Cooling Systems: Geopolymers

et al. 2016

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Passive cooling techniques have been used mostly in countries with hot and arid climates such as Iran, Egypt, and India. However, the use of this important technology has not been seriously considered until a time of energy crisis, and consequently, environmental crisis scenarios, emerge. Scholars have renewed their interest in investigating passive cooling technology, particularly the aspects of new materials, thermal comfort, energy efficiency, new designs, climate, and environmental considerations. This review paper highlights the opportunities to use green materials, such as geopolymers, as evaporative cooling materials with different types of industrial and agricultural waste products as components. Novel ideas for passive cooling design using ancient and nature-inspired concepts are also presented to promote green technology for future applications.

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“…Even though the deceleration in strength gain is more dominant during the initial three days of curing and at later ages (beyond day 45), the concrete did show improvement in strength properties. Saraswathy, et al [8] have suggested that a higher proportion of cement replacement by RHA -up to 30% -resulted in enhanced strength and corrosion resistance. It also caused a reduction of chloride penetration and permeability.…”

Section: S In Rice Husk Ashmentioning

confidence: 99%

Performance Evaluation of Steel Fibres in Rice Husk Ash Substituted Concretes

Sivakumar¹,

Sounthararajan²

2013

j.eng.technol.sci.

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Abstract. The potential use of supplementary cementitious materials in plain cement concrete for improving concrete properties has been a growing concern in recent years. In addition, the effective strengthening of the matrix by reinforcements to avoid brittle This provided the motivation as a cement replacement material and brittleness in concrete. The r burnt raw rice husk sintered in a muffle furnace of the rice husk ash provided and thus resulted in high cementing evaluation of the mechanical properties of rice husk ash substituted concrete mixtures containing RHA as a partial cement substitute at 10% and 20% by weight of cement experimental results demons compressive properties compared to plain concrete. tensile and flexural strength concrete with steel fibre added

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Corrosion performance of rice husk ash blended concrete

Cited by 273 publications

References 7 publications

Development of Hybrid Composite Rice Husk Ash (RHA)–Geopolymer for Bricks Bearing Buildings

Development of Hybrid Composite Rice Husk Ash (RHA)–Geopolymer for Bricks Bearing Buildings

Green Material Prospects for Passive Evaporative Cooling Systems: Geopolymers

Performance Evaluation of Steel Fibres in Rice Husk Ash Substituted Concretes

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