Journal ArticleDOI
Characterization of alkali activated slag–fly ash blends containing nano-silica
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
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.
Journal ArticleDOI
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
More filters
Journal ArticleDOI
Pore structure and chloride permeability of concrete containing nano-particles for pavement
TL;DR: In this paper, the pore structure and chloride permeability of concrete containing nano-particles (TiO2 and SiO2) for pavement are experimentally studied and compared with that of plain concrete, concrete containing polypropylene (PP) fibers and concrete containing both nano-TiO 2 and PP fibers.
Journal ArticleDOI
Reduction of the Calcium Leaching Rate of Cement Paste by Addition of Silica Nanoparticles
TL;DR: In this paper, the authors showed that the addition of small amounts of silica nanoparticles to the cement paste can induce a reduction in the degradation process of calcium leaching, which is a degradation process that consists in the progressive dissolution of the cement mixture as a consequence of the migration of the calcium ions to the aggressive solution.
Journal ArticleDOI
Alkali-activated fly ash: Effect of thermal curing conditions on mechanical and microstructural development – Part II
TL;DR: The development of mechanical strength and the mineral and microstructural characteristics of the alkali activated fly ash (AAFA) reveal the importance of the role played by the curing conditions prevailing during setting and hardening process.
Journal ArticleDOI
A calorimetric study of early hydration of alkali-slag cements
Caijun Shi,Robert L. Day +1 more
TL;DR: In this paper, the authors examined the early hydration of alkali-slag cements activated by different sodium compounds, such as NaOH, NaCO3, Na2SiO3 and NaF, at 25 and 50 °C.
Journal ArticleDOI
Pore solution chemistry of alkali-activated ground granulated blast-furnace slag
Sujin Song,Hamlin M. Jennings +1 more
TL;DR: In this article, the chemical composition and pH of pore solution extracted from six different ground granulated blast-furnace slag (GGBFS) pastes were determined, and the main hydration product was identified as C-S-H, and hydrotalcite was observed in the pastes with an aqueous phase of a high pH.
Related Papers (5)
Setting and mechanical properties of alkali-activated fly ash/slag concrete manufactured at room temperature
Namkon Lee,Haeng-Ki Lee +1 more