Results 141 to 150 of about 462 (171)

The Design of Reactive Powder Concrete (RPC) Mixtures Using Aceh Quartzite Powder

Key Engineering Materials, 2021
Original reactive powder concrete (RPC) consists of a large amount of cement, fine sand, crushed quartz, and silica fume, with a very dense matrix achieved by optimizing the granular packaging of the materials. This study, therefore, applied the modified Andreasen & Andersen particle-packing model using Aceh quartzite powder to design a densely ...
Yulius Rief Alkhaly, Abdullah Abdullah, Husaini Husaini, Muttaqin Hasan   +3 more
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

29Si NMR study of hydration and pozzolanic reactions in reactive powder concrete (RPC)

Magnetic Resonance Imaging, 1996
Abstract A careful analysis of the 29 Si NMR signal of reactive powder concretes, composed of siliceous cement, silica fume, and crushed quartz, has been done in order to determine the hydration conditons on the kinetics of hydration.
Philippot, Samuel, Masse, Sylvie, Zanni, Hélène, Nieto, Pedro, Maret, Vincent, Cheyrezy, Marcel   +5 more
openaire   +3 more sources

Study on leaching damage mechanism of calcium ions of reactive powder concrete (RPC) under ion corrosion

Construction and Building Materials, 2021
Abstract The damage of dissolution and leaching of calcium ions caused by ion corrosion to the macroscopic mechanical properties of RPC is investigated, and the microscopic mechanism of ion corrosion is revealed. Through the unconfined compression test, the effects of different ion corrosion types on the unconfined compression strength (UCS) and ...
Jun Li, Yan Xu, Zefeng Tian, Jie Ma, Pengfei Jing, Zhenyun Song   +5 more
openaire   +1 more source

The Effect of Substituting Metakaolin for Sand on the Thermomechanical Behaviour of Reactive Powder Concrete (RPC)

International Journal of Engineering Research in Africa, 2019
The weakening of the behavior of reactive powder concrete (RPC) under high temperature is a major drawback; therefore, it is necessary to find an ingredient that improves their resistance under rising temperatures. The present work involves the use of metakaolin as a substitute for sand in a reactive powder concrete (RPC) in order to assess its effect ...
Nawal Siham Adamou Doumi, Hadjila Bournine Amrane, Ali Ahmed Benyahia   +2 more
openaire   +1 more source

Restoring Strength of Reinforced Concrete Horizontally Curved Box Beam with Opening Using Reactive Powder Concrete (RPC) and FRP Techniques

Mathematical Modelling of Engineering Problems, 2022
This study is devoted to test the structural response of reinforced concrete horizontally curved box beams in presence of vertical and transverse opening restored by CFRP Laminates or Reactive Powder Concrete (RPC) technique and compared to that having opening but without restoring.
Ameer Mohsin Hashim, Ammar Yasier Ali
openaire   +1 more source

Uniaxial compressive stress-strain behavior of alkali activated steel slag powder-based reactive powder concrete (SSP-RPC)

Construction and Building Materials
Quan Bai, Shengji Jin
exaly   +2 more sources

Investigation of hydration and pozzolanic reaction in Reactive Powder Concrete (RPC) using 29Si NMR

Cement and Concrete Research, 1996
Abstract Hydration of RPC (Reactive Powder Concrete) and pozzolanic reaction were studied by 29Si NMR using SPE/MAS technique. Industrial cement and materials (silica fume, crushed quartz) constitutive of RPC imposed a careful study of spectra acquisition (relaxation times, spinning velocity).… Two RPC formulations were tested.
Hélène Zanni, Marcel Cheyrezy, Vincent Maret, Samuel Philippot, Pedro Nieto   +4 more
openaire   +1 more source

TRIAL DESIGN AND MODEL TESTS ON REACTIVE POWDER CONCRETE (RPC) ARCHES

2011
Arch is an ideal structure for concrete with high compression strength and limited tensile strength. It may be favorable to use ultra-high strength concrete, such as Reactive Powder Concrete (RPC), to reduce the structural dead-weight and facilitate the construction.
Chen, Baochun, Du, Renyuan, Šavor, Zlatko   +2 more
openaire   +2 more sources

Influence of Axial Compression Ratio on Seismic Behavior of Reactive Powder Concrete (RPC) Beam-Column Joints

Applied Mechanics and Materials, 2014
To explore the influence of axial compressive ratio on seismic behavior of reactive powder concrete(RPC) beam-column joints,this paper carry out RPC beam-column joints nonlinear finite element analysis,using software ABAQUS.The effect of different axial compression ratio on the ductility,energy dissipation capacity and bearing capacity are studied ...
Yan Zhong Ju, Chun Yu Li, De Hong Wang
openaire   +1 more source