Behaviour of Geopolymer Mortars after Exposure to Elevated Temperatures
نویسندگان
چکیده
منابع مشابه
Mechanical and Microstructural Evaluations of Lightweight Aggregate Geopolymer Concrete before and after Exposed to Elevated Temperatures
This paper presents the mechanical and microstructural characteristics of a lightweight aggregate geopolymer concrete (LWAGC) synthesized by the alkali-activation of a fly ash source (FA) before and after being exposed to elevated temperatures, ranging from 100 to 800 °C. The results show that the LWAGC unexposed to the elevated temperatures possesses a good strength-to-weight ratio compared wi...
متن کاملAcid Resistance of Fly ash based Geopolymer mortars
Geopolymers are a new promising binder manufactured by activation of a solid aluminosilicate source material with a highly alkaline activating solution and aided by heat. Fly ash, considered to be a waste material is rich in silica and alumina and hence can be used as a source material for manufacture of Geopolymers. These binders have been reported to achieve high early strength and better dur...
متن کاملPreparation and Characterization of New Geopolymer-Epoxy Resin Hybrid Mortars
The preparation and characterization of metakaolin-based geopolymer mortars containing an organic epoxy resin are presented here for the first time. The specimens have been prepared by means of an innovative in situ co-reticulation process, in mild conditions, of commercial epoxy based organic resins and geopolymeric slurry. In this way, geopolymer based hybrid mortars characterized by a differ...
متن کاملResidual Tensile Strength and Bond Properties of GFRP Bars after Exposure to Elevated Temperatures
The use of fiber reinforced polymer (FRP) bars in reinforced concrete members enhances corrosion resistance when compared to traditional steel reinforcing bars. Although there is ample research available on the behavior of FRP bars and concrete members reinforced with FRP bars under elevated temperatures (due to fire), there is little published information available on their post-fire residual ...
متن کاملCompressive Behavior of Recycled Mortar After Exposure to High Temperatures
The possibility of using fine recycled concrete aggregate as a substitute for natural sand are relatively limited. In order to promote it for engineering application, this paper reports the effect of elevated temperatures from room temperature to 600C on the compressive behavior of mortars containing recycled fine concrete aggregate was investigated. It is found that no obvious relation between...
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ژورنال
عنوان ژورنال: Materials Science
سال: 2018
ISSN: 2029-7289,1392-1320
DOI: 10.5755/j01.ms.24.4.18829