Journal ArticleDOI
Characterization of alkali activated slag–fly ash blends containing nano-silica
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TLDR
In this paper, the effects of nano-silica incorporation on an eco-friendly alkali activated slag-fly ash blends were investigated, and the results indicated that as the nano silica content increases, the slump flow is significantly reduced, and reaction process is slightly retarded according to the setting time and isothermal calorimetry results.About:
This article is published in Construction and Building Materials.The article was published on 2015-11-15. It has received 151 citations till now. The article focuses on the topics: Compressive strength & Fly ash.read more
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Incorporation of nano-materials in cement composite and geopolymer based paste and mortar – A review
Mathialagan Sumesh,U. Johnson Alengaram,Mohd Zamin Jumaat,Kim Hung Mo,Mohammed Fouad Alnahhal +4 more
TL;DR: In this paper, a summary of developments in partially replaced cement composite and geopolymers by industrial by-products along with different nano-materials is presented along with the health related issues on using nano materials and methods can be used to overcome the risks of exposure.
Journal ArticleDOI
Sorptivity and acid resistance of ambient-cured geopolymer mortars containing nano-silica
TL;DR: In this article, the effects of nano-silica on flowability, strength development, sorptivity and acid resistance properties of fly ash geopolymer mortars cured at 20°C were investigated.
Journal ArticleDOI
Mechanical and fracture properties of ultra-high performance geopolymer concrete: Effects of steel fiber and silica fume
TL;DR: In this paper, the effects of steel fiber and silica fume on the mechanical and fracture properties of ultra-high performance geopolymer concrete (UHPGC) were investigated.
Journal ArticleDOI
Structural performance of nano-silica modified fly-ash based geopolymer concrete
TL;DR: In this paper, a fly ash based geopolymer concrete was developed using 6% nano silica replacing fly ash, which showed an appreciable improvement in structural behaviour at different ages without any heat activation.
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Investigations on the properties of geopolymer mortar and concrete with mineral admixtures: A review
TL;DR: In this paper, the effect of various mineral additives on the mechanical, durability and microstructure properties of concrete and geopolymer mixtures was summarized and the results advocate that mixtures with desired properties can be designed for ambient temperature curing condition with minerals additives which may further promote them as an environmentally friendly construction material.
References
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Journal ArticleDOI
Durability of alkali-activated fly ash cementitious materials
TL;DR: In this article, the durability of AAFA pastes in aggressive environments was evaluated in a number of aggressive environments (deionized water, seawater, sodium sulphate and acidic solutions) and with respect to alkali-silica reaction-induced expansion.
Journal ArticleDOI
Properties of concrete incorporating nano-silica
TL;DR: In this paper, the effect of colloidal nano-silica on concrete incorporating single (ordinary cement) and binary(ordinary cement+class F fly ash) binders was investigated, and the experimental program included tests for adiabatic temperature, rapid chloride ion permeability, mercury intrusion porosimetry, thermogravimetry and backscattered scanning electron microscopy in order to link macro and micro-scale trends.
Journal ArticleDOI
Evolution of binder structure in sodium silicate-activated slag-metakaolin blends
TL;DR: In this article, the structural evolution in pastes produced from alkali silicate-activated granulated blast furnace slag (GBFS)/metakaolin (MK) blends is assessed.
Journal ArticleDOI
Resistance of alkali-activated slag concrete to acid attack
TL;DR: In this article, the authors investigated the durability of AAS concrete in acid environments and found that it had a high resistance in acid environment, superior to OPC concrete of similar grade.
Journal ArticleDOI
Setting and mechanical properties of alkali-activated fly ash/slag concrete manufactured at room temperature
Namkon Lee,Haeng-Ki Lee +1 more
TL;DR: In this paper, a series of tests of the compressive strength, elastic modulus, splitting tensile strength, flow, setting time, and porosity of the alkali-activated fly ash/slag concrete were carried out.
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Setting and mechanical properties of alkali-activated fly ash/slag concrete manufactured at room temperature
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