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Influence of fly ash on hydration compounds of high ...


Influence of fly ash on hydration compounds of high ... - AIMS Press

The authors believe that the formation of hydration compounds tobermorite and celite resulted in attaining enhanced durability and strength in high volume fly ...

(PDF) Influence of fly ash on hydration compounds of high-volume ...

Results of mechanical and durability tests showed that, to achieve maximum benefits, cement can be replaced to an optimum value of fly ash of 40 ...

Influence of fly ash on hydration compounds of high ... - EBSCOhost

Title: Influence of fly ash on hydration compounds of high-volume fly ash concrete. ; Language: English ; Authors: Rao, M. Kanta1,2 [email protected]

Effect of fly ash on hydration and carbonation of carbonation-cured ...

The ideal fly ash amount improves CO2 absorption, with higher amounts leading to faster uptake. •. Fly ash incorporation speeds up belite reaction during ...

The effect of CaO in fly ash on the hydration mechanism and ...

Fly ash (FA) is often used to modify MPC, playing a role in delaying setting time, changing color, enhancing mechanical properties, ...

The Influence of Ground Fly Ash on Cement Hydration and ...

With the fly ash addition, the heat of hydration of high-volume concrete is reduced [14–16]. Liu et al. [17] proved that fly ash could improve ...

Influence of fly ash on hydration compounds of high-volume ... - OUCI

Yu J, Li G, Leung CKY (2018) Hydration and physical characteristics of ultrahigh-volume fly ash-cement systems with low water/binder ratio.  ...

A study of the early hydration processes and properties of fly ash ...

High amounts of calcium compounds, including anhydrous CaSO4, bring about a ... The effects of CFBC fly ash and slag hydration are the first portions ...

Chapter 3 - Fly Ash in Portland Cement Concrete

Higher fly ash contents will yield higher water reductions. The decreased water demand has little or no effect on drying shrinkage/cracking. Some fly ash is ...

Influence of selected activating methods on hydration processes of ...

However, in case of high amount of fly ash in fly ash–cement mixtures dilution effect predominates during the early stages of hardening. Firstly ...

(Open Access) Influence of fly ash on hydration compounds of high ...

Analysis of results indicated formation of hydration compounds in the form of alite, belite, celite, portlandite and tobermorite (C-S-H gel). Results of ...

Influence of Silica Fume on High-Calcium Fly Ash Expansion during ...

XRF and DTA results showed that free lime in the fly ash was completely hydrated in 11 days and gave the greatest expansion in the absence of ...

The Effect of Mechanical Activation of Fly Ash on Cement-Based ...

The results show that a higher amount of untreated fly ash significantly prolongs the cement hydration process, decreases hydration temperature, deteriorates ...

Hydration of high-volume fly ash cement pastes - ResearchGate

The addition of 3.0% of Na2SO4 could accelerate the pozzolanic reaction of fly ash at early ages. At 20°C, the pH of pore solution of high- ...

[PDF] Influence of high volume fly ash in controlling heat of hydration ...

This paper highlights test results on the influence of high volume fly ash in controlling the heat of hydration in concrete. Four concrete mixes namely, ...

Hydration and Mechanical Properties of High-Volume Fly Ash ...

According to the literature reviews on this topic, the effects of FA on cement hydration have been extensively studied. Cementitious materials containing FA are ...

Effect of Chemical Composition and Network of Fly Ash Glass on the ...

It was found that the addition of ash with higher content of [AlO 6 ] 9- octahedrons in the structure of glass accelerates the hydration process of cement ...

THE EFFECT OF FLY ASH ON CEMENT HYDRATION IN ...

Factors such as the origin of the coal and the burning condition, strongly affect their chemical and mineralogical composition. According to ASTM C618, two ...

The effects of fly ash composition on the chemistry of pore solution in ...

In addition to pore solution expression and analysis, inner hydration products were analyzed using energy-dispersive X-ray analysis. The study ...

THE INFLUENCE OF FLY ASH ON THE RELATIONSHIP BETWEEN ...

The results showed that fly ash delays the peak heat of hydration by 4 hours, shortening the peak shrinkage duration to 30%, with a shrinkage value of 57% ...