Journal ArticleDOI
Properties of high-volume fly ash concrete incorporating nano-SiO2
TLDR
In this article, the properties of high-volume fly ash high-strength concrete incorporating nano-SiO2 (SHFAC) were compared with those of control Portland cement concrete (PCC) and of high volume fly-ash high strength concrete (HFAC) based on short and long-term performance.About:
This article is published in Cement and Concrete Research.The article was published on 2004-06-01. It has received 606 citations till now. The article focuses on the topics: Fly ash & Portland cement.read more
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Nanomaterials in the construction industry: A review of their applications and environmental health and safety considerations
TL;DR: In this paper, state-of-the-art applications of nanomaterials that improve conventional construction materials, suggest likely environmental release scenarios, and summarize potential adverse biological and toxicological effects and their mitigation.
Journal ArticleDOI
Effect of nano-silica on rheology and fresh properties of cement pastes and mortars
Luciano Senff,João A. Labrincha,Victor M. Ferreira,Dachamir Hotza,Wellington Longuini Repette +4 more
TL;DR: Amorphous nano-silica (nS) particles were incorporated in cement pastes and mortars, and their effect on the fresh state behavior was analysed as mentioned in this paper, where the influence of nS content was better observed on yield stress when compared with plastic viscosity values (the first increased about 66.5% while the latter just increased 3.6%).
Journal ArticleDOI
Nano reinforced cement and concrete composites and new perspective from graphene oxide
TL;DR: In this article, the effect of incorporating nanomaterials in low dosages to the fabrication, workability, hydration, microstructure, and mechanical properties of cement-based composites are comprehensively reviewed.
Journal ArticleDOI
Beneficial role of nanosilica in cement based materials – A review
TL;DR: In this paper, the effects of nanosilica addition on hydration kinetics, microstructure refinement, fresh/hardened properties and durability characteristics of concrete are summarized.
Journal ArticleDOI
Pressure-sensitive properties and microstructure of carbon nanotube reinforced cement composites
TL;DR: In this article, carbon nanotubes (CNTs) treated by using a mixed solution of H2SO4 and HNO3 were uniformly dispersed into cement paste by means of ultrasonic energy.
References
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Journal ArticleDOI
Influence of curing temperature on cement hydration and mechanical strength development of fly ash mortars
Y. Maltais,J. Marchand +1 more
TL;DR: In this paper, the influence of fly ash and curing temperature on cement hydration and compressive strength development of mortars was investigated, and it was shown that fly ash tends to increase significantly the rate of cement hyration at early age.
Journal ArticleDOI
Durability of Concrete Incorporating High Volumes of Fly Ash From Sources in the U.S.A.
TL;DR: In this article, the results of investigations to determine the various durability aspects of high-volume fly ash concrete using eight fly ashes and two portland cements from United States (U.S.) sources were presented.
Journal ArticleDOI
Microstructural study of gypsum activated fly ash hydration in cement paste
Xu Aimin,Shondeep L. Sarkar +1 more
TL;DR: In this paper, the microstructural development of fly ash replacement pastes with progressive hydration was investigated using scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDXA).
Journal ArticleDOI
Mechanical treatment of fly ashes. Part I: Physico-chemical characterization of ground fly ashes
TL;DR: In this paper, an original fly ash was ground, using a laboratory mill, for several times (from 10 to 60 minutes), and chemical properties of fly ash/water suspensions were studied and acid neutralization capacities measured.
Journal ArticleDOI
Long-Term Mechanical Properties and Durability Characteristics of High-Strength/High-Performance Concrete Incorporating Supplementary Cementing Materials under Outdoor Exposure Conditions
TL;DR: In this article, the compressive strength of high-strength/highperformance concrete after up to 10 years, the modulus of elasticity (E-modulus) after 2 years, 4 years, and 10 years; and the carbonation depth and the resistance of concrete to chloride-ion penetration after 10 years.