Fire-resistant geopolymer produced by granulated blast furnace slag

Cheng, Ta‐Wui; Chiu, Juei-Long

doi:10.1016/s0892-6875(03)00008-6

Cited by 716 publications

(312 citation statements)

References 4 publications

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“…The primary work on geopolymerization was done on kaolinite and metakaolinite by Davidovits. The mixture of granulated blast furnace slag, kaolinite and metakaolinite showed the highest compressive strength of 79 MPa at 28 days & 60ºC curing time & temperature 5,6 . Geopolymer synthesized from metakaolinite at 65ºC curing temperature for 35 days curing time had the compressive strength of 35 MPa7.…”

Section: *Corresponding Authormentioning

confidence: 99%

An Attempt of Geopolymer Synthesis from Construction Waste

Jha

Tuladhar

2013

J. Nepal Chem. Soc.

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Section: *Corresponding Authormentioning

confidence: 99%

An Attempt of Geopolymer Synthesis from Construction Waste

Jha

Tuladhar

2013

J. Nepal Chem. Soc.

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“…The Si/Al composition for geopolymer prepared from raw material were 2.5 and 3.5 respectively [25]. At the same time, Cheng et al [26], used SiO 2 /Al 2 O 3 ratio in the range of 3.16-3.46. Mustafa et al [27], in his research used 2.5 as ratio of Na 2 SiO 3 /NaOH.…”

Section: Manufacturing Of Geopolymermentioning

confidence: 99%

Review of Dolomite as Precursor of Geopolymer Materials

et al. 2016

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Abstract.Geopolymer is an environmentally friendly cementitious binder that does not require the existence of ordinary Portland cement (OPC). Geopolymer has many excellent advantages, including high early strength, low shrinkage, good thermal resistance and good chemical resistance. Previous commonly used materials include fly ash, clay and slag. The used of dolomite as precursor material in geopolymer field is still new and at the early stage of study. Only a few researchers have done studies on dolomite in geopolymer. Dolomite (CaMg(CO 3 ) 2 ) is abundant and generally inexpensive natural minerals. The possible use of these bulk calcium carbonate materials in improving the mechanical properties of geopolymers will therefore be of great interest. This paper summarizes some research outcomes on dolomite in geopolymer along with the potential of dolomite as geopolymer composites.

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“…The inorganic adhesives such as magnesium oxychloride cement (MOC) and alkali activated cementitious materials [6] were used for organic epoxy adhesives replacement due to the favorable binding properties, non-toxic, low cost and excellent heat-resistance.…”

Section: Introductionmentioning

confidence: 99%

The Feasibility of Modified Magnesia-Phosphate Cement as a Heat Resistant Adhesive for Strengthening Concrete with Carbon Sheets

Zhang

Gao

2016

Applied Sciences

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External bonding of carbon fiber sheets has become a popular technique for strengthening concrete structures all over the world. Epoxy adhesive, which is used to bond the carbon fiber sheets and concrete, deteriorates rapidly when being exposed to high temperatures. This paper presents a high-temperature-resistant modified magnesia-phosphate cement (MPC) with the compressive strength that does not decrease at the temperature of 600˝C. The bond properties of both the modified MPC and the epoxy adhesive between externally bonded carbon fiber sheets and concrete were evaluated by using a double-shear test method after exposure to elevating temperatures from 105˝C to 500˝C. The results showed that the bond strength of the modified MPC at room temperature (RT) is much higher than that of the epoxy resin. Full carbonation with almost 0 MPa was detected for the epoxy sample after the exposure to 300˝C, while only 40% reduction of bond strength was tested for the modified MPC sample. Although the modified MPC specimens failed through interlaminar slip of fiber strips instead of complete debonding, the MPC specimens performed higher bond strength than epoxy resin at ambient temperature, and retained much higher bond strength at elevated temperatures. It could be concluded that it is feasible to strengthen concrete structural members with externally bonded carbon fiber sheets using the modified MPC instead of epoxy adhesive. Furthermore, the use of the modified MPC as the binder between carbon fiber sheets and concrete can be less expensive and an ecologically friendly alternative.

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Fire-resistant geopolymer produced by granulated blast furnace slag

Cited by 716 publications

References 4 publications

An Attempt of Geopolymer Synthesis from Construction Waste

An Attempt of Geopolymer Synthesis from Construction Waste

Review of Dolomite as Precursor of Geopolymer Materials

The Feasibility of Modified Magnesia-Phosphate Cement as a Heat Resistant Adhesive for Strengthening Concrete with Carbon Sheets

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