Results 181 to 190 of about 1,041 (220)

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   +4 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   +2 more sources

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

Construction and Building Materials
Shengji Jin, Quan Bai
exaly   +3 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   +2 more sources

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Experimental investigation on the flexural behavior of coarse aggregate reactive powder concrete (CA-RPC) bridge deck

Engineering Structures, 2022
Mujahed Alsomiri, Zhao Liu
exaly   +2 more sources

Effect of multi-walled carbon nanotube on reactive powder concrete (RPC) performance in sulfate dry-wet cycling environment

Construction and Building Materials, 2022
Zhengfa Chen, Qifeng Lyu
exaly   +2 more sources

Performance of Reactive Powder Concrete (RPC) with different curing conditions and its retrofitting effects on concrete member

, 2008
B Chen, T Chang, C Wu, J Wang
  +4 more sources

Thermo-physical properties and high-temperature durability of reactive powder concrete (RPC) [PDF]

, 2016
The popular use of concrete, particularly in the construction industry, has continually challenged researchers to advance its performance to new levels. Research in this area has led to substantial ideas of reactive powder concrete (RPC) which is developed by controlling three main variables: composition, pressure during setting period, and post-set ...
Helmi, Masdar
openaire   +2 more sources

Neural network approach for estimating the hole damage in drilling process of reactive powder concrete (rpc)

, 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.
BOSCHETTO, Alberto, GISARIO, ANNAMARIA, VENIALI, Francesco   +2 more
openaire   +2 more sources

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