Results 161 to 170 of about 32,539 (203)

Impact resistance of reactive powder concrete

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2015
The impact behaviour of three types of reactive powder concretes (RPC) was studied using the split Hopkinson press bar (SHPB) testing method. These RPC were prepared with steel fiber volume fraction of 0%, 3%, and 4%, respectively. The stress-strain relationship, strain rate sensitivity threshold value, dynamic strength increase factor, modulus of ...
Chujie Jiao, Wei Sun
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Principles of Reactive Powder Concrete

2021
There have been multiple developments and improvements in concrete technologies that had impacts on structural system in recent years. The cement mixtures are used with silica fumes in place of steel fibers and silica fumes (pozzolanic materials) in the form of superplasticizers and are classified as ultra-high-strength concretes to enhance the slab ...
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Carbon nanotubes reinforced reactive powder concrete

Composites Part A: Applied Science and Manufacturing, 2018
Abstract In this paper, four types of multi-walled carbon nanotubes (MWCNTs) were incorporated into reactive powder concrete (RPC) with water or heat curing. The enhancing effects of MWCNT types and curing methods on mechanical properties of RPC were investigated.
Yanfeng Ruan, Baoguo Han, Xun Yu, Wei Zhang, Danna Wang   +4 more
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Mechanical properties of reactive powder concretes

Materials and Structures, 1996
Reactive Powder Concretes (RPC) are a set of ultrahigh-strength concretes reinforced with steel fibers. Their compressive strength is between 200 and 800MPa, and their flexural strength can reach 140MPa.RPC200 has been studied with respect to compressive strength and two-point loading strength to define its mechanical behavior.RPC800, which has been ...
J. Dugat, N. Roux, G. Bernier
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Durability of Green Reactive Powder Concrete

2013
In marine environment, due to the effect of chloride ion, sulfate, magnesium ions, dry-wet cycle, and freeze-thaw cycle, the damage of reinforced concrete bridge pier is extremely serious. Reactive powder concrete, which is considered as a kind of green high performance concrete, has high durability, high strength and presents good environmental ...
Yue Wang, Ming-zhe An, Zi-ruo Yu, Xin-tuo Hou   +3 more
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Hole Damage in Drilling of Reactive Powder Concrete

Journal of Materials in Civil Engineering, 2011
This study deals with the analysis of hole damage in the drilling of reactive powder concrete (RPC). Attention was first focused on the definition of an original approach on the basis of digital image processing (DIP) to quantify the extent of the damage.
GISARIO, ANNAMARIA, BOSCHETTO, Alberto, VENIALI, Francesco   +2 more
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Durability Analysis Testing on Reactive Powder Concrete

Advanced Materials Research, 2013
Reactive powder concrete (RPC) has been proposed as barrier materials for the construction of engineered barrier in Taiwan. The durability characteristics of RPC in such applications become paramount for the success of the containment of the wastes. The adverse environmental conditions at the disposal site could attack concrete barrier and results in ...
Mei Ling Chuang, Wei Hsing Huang
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Nondestructive Evaluation of Reactive Powder Concrete

AIP Conference Proceedings, 2004
Reactive powder concrete (RPC) has been introduced as a structural material for civil engineering applications. The material consists of a finely graded combination of cement, sand, ground quartz and silica fume which combined with water form a cement paste.
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Microstructural analysis of RPC (Reactive Powder Concrete)

Cement and Concrete Research, 1995
Reactive Powder Concretes (RPC) are characterized by high silica fume content and very low water to cement ratio. Granulometry and heat treatment were optimized to obtain excellent mechanical and durability properties. The study of several RPC compositions by Mercury Porosimetry, Thermogravimetric Analysis and X-ray diffraction made it possible to ...
Marcel Cheyrezy, Vincent Maret, Laurent Frouin   +2 more
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Silica Fume Distribution and Reactivity in Reactive Powder Concretes

"SP-178: Sixth CANMET/ACI/JCI Conference: FLy Ash, Silica Fume, Slag & Natural Pozzolans in Concrete", 1998
Transmission Electron Microscopy (TEM), Scanning Transmission Electron Microscopy (STEM) and Chemical Analysis investigations lead to a fine characterization of Reactive Powder Concretes elaborated under different conditions as pressure application during setting and post-set heat treatment. An abrasive thinning method followed by ionic etching allowed
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