Results 201 to 210 of about 4,842 (240)

Mixture Optimization of Green Reactive Powder Concrete with Recycled Powder

Journal of Materials in Civil Engineering, 2019
AbstractRecycled powder (RP), generated from construction waste, can be used as supplementary cementitious material.
Wenjun Qu, Peng Zhu
exaly   +2 more sources

Ultrasonic testing of reactive powder concrete

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004
Concrete is a critical material for the construction of infrastructure facilities throughout the world. Traditional concretes consist of cement paste and aggregates ranging in size from 6 to 25 mm that form a heterogeneous material with substantial compressive strength and a very low tensile strength.
Glenn, Washer, Paul, Fuchs, Benjamin A, Graybeal, Joseph Lawrence, Hartmann   +3 more
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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 ...
openaire   +1 more source

Flexural Strength of the Reactive Powder Concrete

Solid State Phenomena, 2016
Reactive powder concrete (RPC) is cement composite which is characterized by an absence of coarse aggregate. That resulted in a greater homogeneity of the mixture and thus also in a higher compressive strength. On the other side, the absence of coarse aggregate and typically a large volume of the paste lead to the deterioration of some of the ...
Michal Ženíšek, Tomáš Vlach, Lenka Laiblová   +2 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source