Results 201 to 210 of about 32,477 (249)

Composition of reactive powder concretes

Cement and Concrete Research, 1995
Abstract Development of an ultra-high strength ductile concrete designated RPC (Reactive Powder Concrete), was made possible by the application of a certain number of basic principles relating to the composition, mixing and post-set heat curing of the concrete.
Pierre Richard, Marcel Cheyrezy
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Reactive powder concrete with lightweight aggregates

Construction and Building Materials, 2020
Abstract The paper presents test results of lightweight concretes obtained by introduction of lightweight aggregates: Pollytag, expanded clay aggregate and expanded polystyrene beads (EPS) in quantity from 30 vol% to 60 vol% to the RPC mix. It was demonstrated that addition of the expanded clay aggregate allowed to obtain lightweight RPC with the ...
Stefania Grzeszczyk, Grzegorz Janus
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Mechanical Properties of Modified Reactive Powder Concrete

SP-173: Fifth CANMET/ACI International Conference on Superplasticizers and Other Chemical Admixtures in Concrete, 1997
Original Reactive Powder Concrete (RPC) - in form of a superplasticized cement mixture with silica fume, steel fibers and ground fine quartz was studied in comparison with a modified RPC where a graded natural aggregate (max size 8 mm) was used to replace the fine sand and/or part of the cementitious binder.
Collepardi, Silvia, Coppola, Luigi, Troli, Roberto, Collepardi, Mario   +3 more
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A new approach for production of reactive powder concrete: lightweight reactive powder concrete (LRPC)

Materials and Structures, 2016
Currently, reactive powder concrete (RPC) has been used in the production of structural beam components, manhole covers and similar road accessories etc. In this study, the production of lightweight reactive powder concrete (LRPC) was aimed by using pumice aggregate so as to gain advantage on transportation due to its lowered weight.
Surmelioglu, Setenay, Gokce, H. Suleyman, Andic-Cakir, Ozge   +2 more
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Reactive powder concrete reinforced by nanoparticles

Advances in Cement Research, 2016
The influences of four nanoparticles of nanosilica (SiO2), nano-calcium carbonate (CaCO3), nano-aluminium oxide (Al2O3) and nano-iron oxide (Fe2O3) on workability, hydration, pore structure and mechanical strength of reactive powder concrete (RPC) are investigated by macro/microscopic methods. The aim of this study is to provide an essential basis for
Guangcheng Long, Ye Shi, Kunlin Ma, Youjun Xie   +3 more
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The Sherbrooke Reactive Powder Concrete Footbridge

Structural Engineering International, 1998
An innovative pedestrian and bicycle bridge has been built entirely with reactive powder concrete, without any steel rebars. The superstructure spans 60 m and consists of an open-web space truss.
Pierre-Claude Aïtcin, Mohamed Lachemi, Régis Adeline, Pierre Richard   +3 more
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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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