Results 81 to 90 of about 364,055 (260)

Cement-rock interaction : infiltration of a high-pH solution into a fractured granite core [PDF]

, 2010
Within the framework of the HPF project (Hyperalkaline Plume in Fractured Rock) at the Grimsel Test Site (Switzerland), a small scale core infiltration experiment was performed at the University of Bern.
Mäder, Urs K., Soler, Josep M., MÄDER, U.K., SOLER, J.M.   +3 more
core   +1 more source

Transformation of a Silicate Material for Carbon Negative Magnesia‐Based Cement via Electrochemistry

Advanced Science
Magnesium silicate hydrate cement (M‐S‐H) can be formed from magnesium oxide (MgO) and silica phases which offer unique properties compared to traditional calcium‐based Portland cement (PC).
Anthony R. Ramuglia, Julius Scheel, Thomas Köberle, Kelly Henze, Silvia Paasch, Lairana Lima Duarte, Stefan Kaskel, Eike Brunner, Viktor Mechtcherine, Thomas Matschei, Inez. M. Weidinger, Marco Liebscher   +11 more
doaj   +1 more source

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

Structural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša, Sandra Juradin, Silvija Mrakovčić, Lidija Radovanović, Milica Vasić, Huseyin Bilgin   +5 more
wiley   +1 more source

Literature review Characteristics and rationale for the clinical application of tricalcium silicate cement sealer

Эндодонтия Today, 2020
Bioceramics-based sealers were introduced to the market after bioceramic cements had appeared. Recently, lots of studies have been carried out regarding the physicochemical and biological properties of sealer such as BioRoot RCSTM based on tricalcium ...
Z. S. Khabadze, O. S. Mordanov, I. M. Todua, S. M. Solimanov, S. A. Nazhmudinov, O. I. Magomedov, A. B. Adzhieva   +6 more
doaj   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Enhancing the rheology, reaction kinetics and early-age strength of limestone calcined clay cement (LC³) with sodium silicate addition

The effect of small-dose sodium silicate (SS) solutions with varying compositions on the rheology and early-age strength of limestone calcined clay cement (LC3) was evaluated.
Wu, Haoming, Lopez, Susan Bernal, Dai, Xiaodi, Yio, Marcus, Cheeseman, Chris, Wong, Hong S   +5 more
core   +1 more source

The effect of carbon dioxide on β-dicalcium silicate and Portland cement

, 2006
Carbonation of silicate-based minerals and industrial residues can help to reduce CO2 emissions as well as produce useful materials. However, until a full understanding of the chemistry and microstructural development of carbonation products is obtained,
Shtepenko, Olga, Thomas, Mike, Hills, Colin, Brough, Adrian   +3 more
core   +1 more source

Fire Resistance of Sewage Sludge Ash Blended Cement Pastes

Journal of Engineering, 2013
The aim of the present study is to investigate the hydration characteristics and the fire resistance of sewage sludge ash blended cement pastes by the determination of compressive strength, bulk density, and total porosity in addition to XRD and SEM ...
M. A. Tantawy, A. M. El-Roudi, Elham M. Abdalla, M. A. Abdelzaher   +3 more
doaj   +1 more source

Mechanical, rheological, and durability performances of GGBS‐based concrete for potential application to prestressed structures

Structural Concrete, EarlyView.
Abstract Ground granulated blast‐furnace slag (GGBS) is a widely used clinker substitute in concrete, recognized for its potential to significantly reduce environmental impacts. However, its application in prestressed concrete remains limited in several countries, mainly due to concerns regarding early‐age mechanical performance and long‐term ...
D. Rolando Baldiviezo, Leonardo Todisco, Cristina Argiz, Carmen Andrade, Amparo Moragues, Jaime C. Gálvez, Hugo Corres   +6 more
wiley   +1 more source

Sodium Silicate from Rice Husk Ash and Their Effects as Geopolymer Cement

, 2022
Sodium silicate is a commonly used activator in geopolymer that is produced commercially. In this study, rice husk ash (RHA) from agricultural waste was used to synthesize sodium silicate as an activator for geopolymer cement.
Aprilia, Sri, Ludvig, Péter, Jawad Ahmad, Rahmawati, Cut, Abdullah, Teuku Budi Aulia, Cut Rahmawati, Aulia, Teuku Budi, Lia Handayani, Sri Aprilia, Ahmad, Jawad, Handayani, Lia, Abdullah,, Péter Ludvig   +13 more
core   +1 more source