Effect of Silica Fume and Slag on Compressive Strength and Abrasion Resistance of HVFA Concrete
TLDR
In this article, portland cement (PC) has been partially replaced with a Class F fly ash (FA) at level of 70% to produce high-volume FA (HVFA) concrete (F70).Abstract:
In this study, portland cement (PC) has been partially replaced with a Class F fly ash (FA) at level of 70 % to produce high-volume FA (HVFA) concrete (F70). F70 was modified by replacing FA at levels of 10 and 20 % with silica fume (SF) and ground granulated blast-furnace slag (GGBS) and their equally combinations. All HVFA concrete types were compared to PC concrete. After curing for 7, 28, 90 and 180 days the specimens were tested in compression and abrasion. The various decomposition phases formed were identified using X-ray diffraction. The morphology of the formed hydrates was studied using scanning electron microscopy. The results indicated higher abrasion resistance of HVFA concrete blended with either SF or equally combinations of SF and GGBS, whilst lower abrasion resistance was noted in HVFA blended with GGBS.read more
Citations
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Journal ArticleDOI
A brief on high-volume Class F fly ash as cement replacement – A guide for Civil Engineer
TL;DR: In this paper, the authors present an overview of the previous studies carried out on the use of high volume Class F FA as a partial replacement of cement in traditional paste/mortar/concrete mixtures based on Portland cement.
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Hydration, shrinkage, pore structure and fractal dimension of silica fume modified low heat Portland cement-based materials
TL;DR: In this article, the effect of silica fume (SF) content, varying between 0 and 12%, by mass of binder, on hydration heat, hydration products and pore structure of LHP cement-based materials were investigated by isothermal calorimetry, thermal analysis, and mercury intrusion porosimetry (MIP), respectively.
Journal ArticleDOI
Comparison between the effects of phosphorous slag and fly ash on the C-S-H structure, long-term hydration heat and volume deformation of cement-based materials
TL;DR: In this paper, the effects of PS and FA on C-S-H structure, long-term hydration heat, hydration products, mechanical properties and volume deformation of cement paste/concrete were investigated and compared via 29Si NMR nuclear magnetic resonance (29Si NMRI), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal analysis and the dissolution method.
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A critical review on application of alkali activated slag as a sustainable composite binder
Paul O. Awoyera,Adeyemi Adesina +1 more
TL;DR: A state-of-the-art review of advances in alkali activated slag (AAS) with respect to its behaviour is presented in this paper, where factors that affect the fresh and hardened properties of AAS based composites are discussed.
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Pore structural and fractal analysis of the influence of fly ash and silica fume on the mechanical property and abrasion resistance of concrete
TL;DR: In this paper, the abrasion resistance of concrete is considered to be one of the most important factors determining the reliability of dam concrete in southwestern China, and it is shown that concrete's resilience to concrete abrasions depends on the type of concrete used.
References
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Book
Properties of concrete
TL;DR: In this article, the authors present the following properties of concrete: Elasticity, Shrinkage and Creep, Durabilty of Concrete, Freezing and Thawing, and Chlorides.
Journal ArticleDOI
Changes in portlandite morphology with solvent composition: Atomistic simulations and experiment
TL;DR: In this article, a new analysis tool was developed to quantify the experimentally observed changes in morphology of portlandite, allowing the calculation of the relative surface energies of the crystal facets.
Book
Concrete : structure, properties, and materials
TL;DR: In this article, the authors introduce concrete strength, dimensional stability durability, and early-age properties of hardened concrete, including hydraulic cements aggregates admixtures proportioning normal-weight concrete mixtures.
Journal ArticleDOI
Designing Precursors for Geopolymer Cements
Peter Duxson,John L. Provis +1 more
TL;DR: In this paper, the potential of one-part "just add water" geopolymer formulations is discussed, and the opportunities presented by the development of one part "Just Add Water" formulations are identified as exceeding their potential of the traditional two-part (solid plus alkaline activator solution) mix design.
Journal ArticleDOI
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Hui Li,Mao-hua Zhang,Jinping Ou +2 more
TL;DR: In this paper, the abrasion resistance of concrete containing nano-particles for pavement is experimentally studied, and the relationship between the indices of sub-packetization and compressive strength of concrete is obtained.
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