Results 31 to 40 of about 17,384 (228)

Study on properties and mechanism of alkali-activated geopolymer cementitious materials of marble waste powder

Developments in the Built Environment, 2023
In order to explore the effect and mechanism of marble waste powder on the properties of alkali-activated slag composite cementitious materials. The effects of different parameters on the properties of alkali-activated slag composite cementitious ...
Tongkuai Wang, Xiuli Qiu, Wenwei Yang, Changyuan Ma   +3 more
doaj   +1 more source

Effect of the activator dose on the compressive strength and accelerated carbonation resistance of alkali silicate-activated slag/metakaolin blended materials [PDF]

, 2015
The effects of activator dose on the properties of alkali-activated slag/metakaolin blends, were studied in fresh and hardened states: heat evolution, strength and accelerated carbonation. High activator concentrations affect the slag dissolution rate,
Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Bernal, Buchwald, Burciaga-Díaz, Burciaga-Díaz, Burciaga-Díaz, Chang, Deja, Dombrowski, Duxson, Fagerlund, Fernández-Jiménez, Granizo, Granizo, Hewlett, Ismail, Lange, Lange, Palacios, Provis, Provis, Provis, Puertas, Puertas, Rodríguez, Ruiz-Santaquiteria, Shi, Shi, Song, Susan A. Bernal, Xu, Yip, Yip, Živica   +43 more
core   +1 more source

Using Carbonated BOF Slag Aggregates in Alkali-Activated Concretes [PDF]

Materials, 2019
This experimental study aimed to develop alkali-activated concretes containing carbonated basic oxygen furnace (BOF) slag aggregates. In the first stage, the impacts of replacing normal aggregates with carbonated BOF slag aggregates in different alkali-activated concretes were determined by assessing mechanical properties (compressive and flexural ...
Alzaza Ahmad, Illikainen Mirja, Kinnunen Päivö, Woof Bethany Frances, Shaad Khaled Mohammad, Mastali Mohammad, Abdollahnejad Zahra   +6 more
openaire   +3 more sources

Alkali-activated slag cements produced with a blended sodium carbonate/sodium silicate activator [PDF]

, 2016
An alkali-activated slag cement produced with a blend of sodium carbonate/sodium silicate activator was characterised. This binder hardened within 12 h and achieved a compressive strength of 20 MPa after 24 h of curing under ambient conditions, which is ...
Engelhardt G, Jannie S. J. van Deventer, John L. Provis, Krivenko PV, Palacios M, Rackel San Nicolas, Sakulich AR, Shi C, Susan A. Bernal, Xu H, Zhou H   +10 more
core   +2 more sources

Properties of cementless mortars activated by sodium silicate. [PDF]

, 2007
yesThe present paper reports the testing of 12 alkali-activated mortars and a control ordinary portland cement (OPC) mortar. The main aim is to develop cementless binder activated by sodium silicate powder.
Ashour, Ashraf F., Lee, E-T., Song, J-K., Yang, Keun-Hyeok   +3 more
core   +1 more source

Alkali-activated slag cements: Kinetic studies

Cement and Concrete Research, 1997
Peer ...
Fernández-Jiménez, Ana, Puertas, Francisca   +1 more
openaire   +2 more sources

Experimental study on flexural mechanical properties of steel fiber reinforced alkali-activated slag concrete beams

Frontiers in Physics
As an environmentally friendly alternative to ordinary concrete, slag concrete is subject to limitations such as drying shrinkage and micro-cracking during its promotion and application. In order to address these challenges, steel fibers, known for their
Xiaohui Yuan, Xiaohui Yuan, Ruijin Huo, Ruijin Huo, Xin Zhang   +4 more
doaj   +1 more source

Thermal stability and leaching behavior of alkali-activated slag doped with electric arc furnace dust [PDF]

Science of Sintering
The study presented in this paper explores the simultaneous valorization of electric arc furnace slag (EAFS) and electric arc furnace dust (EAFD) through an alkali activation process, as well as the thermal stability of the resulting product.
Tadić Nebojša, Brašanac-Vukanović Snežana, Nikolić Irena, Radmilović Vuk V., Radmilović Velimir R.   +4 more
doaj   +1 more source

Microstructure and porosity evolution of alkali activated slag at various heating temperatures

Journal of Materials Research and Technology, 2020
This paper elucidated the microstructural and porosity evolution of alkali activated slag at 800 °C up to 1200 °C. The microstructural analysis obtained shows the changes in surface densification of glassy phase and nucleation of dynamical grains within ...
Ikmal Hakem Aziz, Mohd Mustafa Al Bakri Abdullah, M.A.A. Mohd Salleh, Sorachon Yoriya, Jitrin Chaiprapa, Catleya Rojviriya, Long Yuan Li   +6 more
doaj   +1 more source

Modelling chloride transport in alkali-activated slags [PDF]

Cement and Concrete Research, 2020
The service-life of steel-reinforced concrete structures is primarily determined by the ability of the concrete cover to resist chloride ingress. With limited literature available on the ingress of chloride into alkali-activated slags (AAS) under service conditions, it is critical that this is described by appropriate models.
Mundra, S., Prentice, D.P., Bernal, S.A., Provis, J.L.   +3 more
openaire   +2 more sources