Results 11 to 20 of about 3,590 (187)
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
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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 +3 more
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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 +4 more
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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 +3 more
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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 +2 more
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Subgrade heave of sulfate attacking on cement-stabilized filler
Yantu gongcheng xuebao, 2019 A high-speed railway subgrade which experiences a continuous and severe heave after construction is investigated through the delamination deformation monitoring, expansive tests and XRD tests.
YAO Jun-kai 1, YE Yang-sheng 1, WANG Peng-cheng 2, CHEN Feng 2, CAI De-gou 2
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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.
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The influence of sulfate availability on rheology of fresh cement paste
Applied Rheology, 2020 Natural gypsum can degenerate into hemihydrate during cement clinker grinding which changes the physical and chemical properties of cement hydration, affecting therefore the fresh and hardened properties of cement based materials.
Mbasha Willy +2 more
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Frontiers in Earth Science, 2023 Introduction: In order to improve the utilization efficiency of industrial waste discharged in the process of iron and steel metallurgy, a kind of material that can replace cement for mine filling is sought.
Changlong Wang +8 more
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Effect of gypsum on early hydration of amorphous C12A7 and its mechanism
矿业科学学报, 2022 In order to promote the efficient application of amorphous C12A7 in early strength and rapid setting engineering materials, and understand the interaction mechanism between gypsum and amorphous C12A7, the influence of gypsum on the early hydration of ...
Tang Guanbao, Wang Dongmin
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