Journal ArticleDOI
Effects of nano-SiO2 on early strength and microstructure of steam-cured high volume fly ash cement system
Min Liu,Hongbo Tan,Xingyang He +2 more
TLDR
In this paper, nano-SiO2 (NS) was introduced in a steam-cured cementitious system to induce the early hydration, with intention to promote the early strength.About:
This article is published in Construction and Building Materials.The article was published on 2019-01-10. It has received 150 citations till now. The article focuses on the topics: Fly ash & Cement.read more
Citations
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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.
Journal ArticleDOI
Loess stabilization using cement, waste phosphogypsum, fly ash and quicklime for self-compacting rammed earth construction
TL;DR: In this article, the authors evaluated the effects of additives on softening coefficient, flexural and compressive strength of stabilized samples with 55°C curing temperature and found that the additive effect had a significant improvement on loess stabilization.
Journal ArticleDOI
Compressive strength and hydration process of wet-grinded granulated blast-furnace slag activated by sodium sulfate and sodium carbonate
TL;DR: In this paper, the super-fine ground granulated blast furnace slag was obtained by wet grinding and an attempt to activate the super fine ground granule slag by sodium sulfate (SS) and sodium carbonate (SC) was made.
Journal ArticleDOI
Utilization of low-quality desulfurized ash from semi-dry flue gas desulfurization by mixing with hemihydrate gypsum
TL;DR: In this paper, the feasibility of utilizing low-quality desulfurization ash from semi-dry flue gas desulurization by mixing with α-hemihydrate gypsum was investigated.
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Linear and non-linear SVM prediction for fresh properties and compressive strength of high volume fly ash self-compacting concrete
TL;DR: In this article, SVM models with different kernels (linear, polynomial, radial basis and sigmoid) were proposed to predict the fresh properties and compressive strength of high volume fly ash SCC (HVF-SCC).
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
Characteristics of cement mortar with nano-SiO2 particles
TL;DR: In this paper, the properties of cement mortars with nano-SiO 2 were experimentally studied, and the results showed that the compressive strength of mortars containing nano SiO 2 particles was significantly higher than those of those containing silica fume at 7 and 28 days.
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Alkali-activated fly ash/slag cements: Strength behaviour and hydration products
TL;DR: The activation of fly ash/slag pastes with NaOH solutions has been studied in this paper, where the authors established the equations of the models describing the mechanical behaviour of these pastes as a function of the factors and levels considered.
Journal ArticleDOI
A review on ultra high performance concrete: Part I. Raw materials and mixture design
TL;DR: In this article, the theoretical principles, raw materials, mixture design methods, and preparation techniques for UHPC are reviewed, including reduction in porosity, improvement in microstructure, enhancement in homogeneity, and increase in toughness.
Journal ArticleDOI
Microstructure Development of Alkali-Activated Fly Ash Cement: A Descriptive Model
TL;DR: In this paper, the microscopic study of a set of alkali-activated and thermally cured fly ash samples enabled the authors to establish a descriptive model for the microstructural development of fly ash-based cementitious geopolymers.