Results 11 to 20 of about 15,071 (234)

Influence of the Concentration of Seawater on the Early Hydration Properties of Calcium Sulphoaluminate (CSA) Cement: A Preliminary Study

Buildings, 2021
This research investigates the effect of seawater of different concentrations on the hydration process and microstructure of calcium sulphoaluminate (CSA) cement.
Chuanlin Wang, Zeping Liu, Tengteng Zhang, Yuxuan Zhang, Zehong Liu, Xianbo Zhao   +5 more
doaj   +1 more source

The impact of intrinsic anhydrite in an experimental calcium sulfoaluminate cement from a novel, carbon-minimized production process [PDF]

, 2017
Gulf Organisation for Research and Development EG016-RG11757 Open access via Springer Compcat Agreement The authors are grateful for the financial support of the Gulf Organization for Research and Development (GORD) through grant EG016-RG11757.
Galan, Isabel, Glasser, Fredrik, Imbabi, Mohammed Salah-Eldin, Jen, Gabriel, Skalamprinos, Solon, Whittaker, Mark   +5 more
core   +1 more source

Lime stabilisation for earthworks: a UK perspective [PDF]

, 2014
Lime stabilisation is a versatile technique applied during earthworks operations. Modern soil recycling units are much more efficient at pulverising fill material and intermixing the added binder/water than machinery available 20 years ago.
Beetham P, Bell FG, Bergado DT, Bin S, Bohn HL, BSI, BSI, BSI, Davidson LK, Diamond S, Eades JE, Greaves HM, Highways Agency, Highways Agency, Highways Agency, Holt CC, Ingles OG, John Bateman, Longworth I, McAllister LD, Mitchell JK, Neil Dixon, Paul Beetham, Paul Fleming, Perry J, Petry TM, Reeves GM, Robert Hutchison, Rowell DL, Sherwood PT, Sherwood PT, Snedker EA, Stocker PT, Sweeney DA, Taylor HFW, Tom Dijkstra, Van Olphen H, Winter NB   +37 more
core   +2 more sources

Hydration of Calcium Sulfoaluminate-Based Binder Incorporating Red Mud and Silica Fume

Applied Sciences, 2019
This study investigated the properties of hardened pastes made with calcium sulfoaluminate expansive agent (CSA), red mud, and silica fume. Five different ratios of 10:90, 20:80, 30:70, 40:60, and 50:50 were applied as the weight ratios of CSA and red ...
Yubin Jun, Jae Hong Kim, Taewan Kim
doaj   +1 more source

Effect of Plasticizer on Hydration and Rheological Behavior of Cement Pastes

CivilEng, 2022
Lignosulfonate-based admixtures (LS) obtained from sulfite pulping processes were the first dispersants added as a water-reducer to concrete. Less effective than the latest superplasticizers, the low cost and low environmental footprint of LS continue to
Youssef El Bitouri, Nathalie Azéma, Gwenn Le Saoût, Rolf Andreas Lauten, Klaartje De Weerdt   +4 more
doaj   +1 more source

Thermodynamic Stability of Ettringite Formed by Hydration of Ye’elimite Clinker

Advances in Materials Science and Engineering, 2016
In order to save limited natural resources by utilising industrial by-products, this paper focuses on an entirely new application of fluidized bed combustion fly ash (FBCFA) into Portland composite cements.
Marcela Fridrichová, Karel Dvořák, Dominik Gazdič, Jana Mokrá, Karel Kulísek   +4 more
doaj   +1 more source

Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum

Materiales de Construccion, 2015
The hydration, strength development and composition of hydration products of supersulphated cements were characterized from the first 48 hours up to 360 days.
M. E. Bazaldúa-Medellín, A. F. Fuentes, A. Gorokhovsky, J. I. Escalante-García   +3 more
doaj   +1 more source

Comparison of Two Sulfate-Bearing Soils Stabilized with Reactive Magnesia-Activated Ground Granulated Blast Furnace Slag: Swelling, Strength, and Mechanism

Buildings, 2023
Sulfate-bearing soils, which causes many engineering problems, e.g., cracking, collapse, and pavement layer settlement, are often encountered in the construction of pavements.
Wentao Li, Runxiang Li, Yin Chen, Henglin Xiao   +3 more
doaj   +1 more source

Novel Approach for Suppression of Ettringite Formation in Sulfate-Bearing Soil Using Blends of Nano-Magnesium Oxide, Ground Granulated Blast-Furnace Slag and Rice Husk Ash

Applied Sciences, 2021
The treatment of sulfate-bearing soil with calcium-based stabilizers such as cement or lime often results in ettringite formation, consequently leading to swelling and strength deterioration.
Khaled Ibrahim Azarroug Ehwailat, Mohd Ashraf Mohamad Ismail, Ali Muftah Abdussalam Ezreig   +2 more
doaj   +1 more source

Micromechanical modeling of sulphate corrosion in concrete: Influence of ettringite forming reaction [PDF]

Theoretical and Applied Mechanics, 2008
Two micromechanical models are developed to simulate the expansion of cementitious composites exposed to external sulphate attack. The difference between the two models lies in the form of chemical reaction of the ettringite formation (through-solution ...
Basista M., Weglewski W.
doaj   +1 more source