Search Results - "Amankwah, Samuel"

Impact of hydration stoppage on quantification of the GGBS content in ternary limestone cements using the PONKCS method by Adu-Amankwah, Samuel, Zajac, Maciej, Hou, Pengkun, Black, Leon

“…Most supplementary cementitious materials (SCMs) are predominantly poorly-crystalline or amorphous. Their reactivity is routinely evaluated through SEM image…”
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Influence of limestone on the hydration of ternary slag cements by Adu-Amankwah, Samuel, Zajac, Maciej, Stabler, Christopher, Lothenbach, Barbara, Black, Leon

“…The hydration kinetics, microstructure and pore solution composition of ternary slag-limestone cement have been investigated. Commercial CEM I 52.5 R was…”
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Simulating lightning effects on carbon fiber composite shielded with carbon nanotube sheets using numerical methods by Awode, Emmanuel Imhanote, Amankwah, Samuel, Mbada, Ndubuisi Isaac, Omiogbemi, Ibrahim Momoh-Bello

“…The demand for lightweight aircraft structures has shifted from traditional metals like aluminum to composite materials such as carbon fiber reinforced…”
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Effect of sulfate additions on hydration and performance of ternary slag-limestone composite cements by Adu-Amankwah, Samuel, Black, Leon, Skocek, Jan, Ben Haha, Mohsen, Zajac, Maciej

“…•The ettringite/AFm balance change the C3A, slag, and limestone reaction kinetics.•High sulfate increases AFt but the C-S-H has higher apparent density and…”
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Influence of component fineness on hydration and strength development in ternary slag-limestone cements by Adu-Amankwah, Samuel, Bernal Lopez, Susan A, Black, Leon

“…The quest for sustainable alternatives to Portland cement has led to the exploration of a range of materials or their combinations, often with the aim of…”
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Hybrid Organic–Inorganic Blast Furnace Slag Binders Activated with Alkali Acetates by Huang, Yuyan, Marsh, Alastair T. M., Yue, Zengliang, Krishnan, Sreejith, Adu-Amankwah, Samuel, Bernal, Susan A.

“…Hybrid organic–inorganic binders based on blast furnace slag were produced using sodium (NaAc) or potassium (KAc) acetate as the sole activator, and their…”
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Reuse of UK alum water treatment sludge in cement-based materials by Shamaki, Mubarak, Adu-Amankwah, Samuel, Black, Leon

“…•Alum Water Treatment Sludge comprises amorphous Al(OH)3 with minor amounts of quartz and montmorillonite.•Alum sludge undergoes various phase changes upon…”
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Circular economy, data analytics, and low carbon concreting: A case for managing recycled powder from end-of-life concrete by Martin, Ciara, Manu, Emmanuel, Hou, Pengkun, Adu-Amankwah, Samuel

“…•Reuse of the mineral rich recycled concrete powder (RCP) as supplementary cementitious material (SCM) is under exploited.•Meta-analysis reveals that 15%…”
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THU359 A Classical Case Of SGLT-2 Inhibitor Euglycemic Ketoacidosis In A Patient With Glucotoxicity by Amankwah, Samuel, Bolaji Olajide, Omolola

“…Disclosure: S. Amankwah: None. O.B. Olajide: None. Background: SGLT-2 inhibitors have been demonstrated to be beneficial in protecting comorbid cardiovascular…”
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Impact of microstructure on the performance of composite cements: Why higher total porosity can result in higher strength by Zajac, Maciej, Skocek, Jan, Adu-Amankwah, Samuel, Black, Leon, Ben Haha, Mohsen

“…This paper describes the underlying principles behind the evolution in performance of ternary composite cements comprising Portland cement clinker, slag and…”
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Mixed hydrogen and biofuels cement clinker: Characterisation, microstructure, and performance by Adu-Amankwah, Samuel, Douglas, Ben, Arkless, Leslie, Cardinal, Nina, Zajac, Maciej

“…Over 35 % of the CO2 associated with cement production comes from operational energy. The cement industry needs alternative fuels to meet its net zero…”
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SUN-697 Importance of Immunosuppressive Therapy for Managing Insulin Resistance Type B by Amankwah, Samuel, Silpasuvan, Artit

“…Background: Autoimmune Antibodies against insulin receptors leading to refractory hyperglycemia is known as Type B insulin resistance. In addition to insulin…”
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Influence of limestone addition on sodium sulphate activated blast furnace slag cements by Marsh, Alastair T.M., Yue, Zengliang, Dhandapani, Yuvaraj, Button, Katharine, Adu-Amankwah, Samuel, Bernal, Susan A.

“…•Limestone addition accelerates reaction kinetics in Na2SO4-activated GGBS cements.•Slag composition has a strong influence on reaction kinetics.•Ettringite…”
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Synergistic effects of supplementary cementitious materials in limestone and calcined clay-replaced slag cement by Wang, Han, Hou, Pengkun, Li, Qinfei, Adu-Amankwah, Samuel, Chen, Heng, Xie, Ning, Zhao, Piqi, Huang, Yongbo, Wang, Shoude, Cheng, Xin

“…•LC2 can enhance both compressive and flexural strength of slag cement mortars.•LC2 can optimize the phase assemblages of slag cement.•The synergistic effect…”
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Hyperaldosteronism in a Patient With Gastrointestinal Potassium Wasting by Amankwah, Samuel, Fein, Henry G

“…Background: Medical conditions causing hypokalemia can be masked by a diet very rich in potassium. The following case presents a patient who developed new…”
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Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate by Chen, Heng, Hou, Pengkun, Zhou, Xiangming, Black, Leon, Adu-Amankwah, Samuel, Feng, Pan, Cui, Na, Glinicki, Michał A., Cai, Yamei, Zhang, Shipeng, Zhao, Piqi, Li, Qinfei, Cheng, Xin

“…Supersulfated cement (SSC) is a traditional low-carbon cement, but its slow hydration and strength development has limited its practical applications. Nano…”
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Phase evolution and performance of sodium sulfate-activated slag cement pastes by Yue, Zengliang, Dhandapani, Yuvaraj, Adu-Amankwah, Samuel, Bernal, Susan A.

“…This study evaluates the reaction kinetics, phase assemblage, and microstructure evolution of Na2SO4-activated slag cements produced with three commercial…”
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Phase and microstructure evolution of the hydration products of magnesium phosphate cements under sulfuric acid environments by Zhao, Jinguang, Shi, Jie, Li, Yining, Hou, Pengkun, Liang, Shuang, Chen, Heng, Huang, Yongbo, Adu-Amankwah, Samuel, Zhou, Xiangming, Cheng, Xin

“…Magnesium phosphate cement is a good canditate of repairing material served under harsh environments and its acid resistivity has drawn a lot of interest, but…”
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Combined influence of carbonation and leaching on freeze-thaw resistance of limestone ternary cement concrete by Adu-Amankwah, Samuel, Zajac, Maciej, Skoček, Jan, Němeček, Jiří, Haha, Mohsen Ben, Black, Leon

“…•Freeze-thaw testing protocols promote carbonation and leaching.•Carbonation and leaching alter phase assemblages and pore structure.•Limestone ternary cement…”
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FRI258 A Diagnostic Journey To Autoimmune Polyendocrine Syndrome Type 2 by Amankwah, Samuel, Driscoll, Henry Keane, Muojieje, Chukwudi, Sanati, Milad

“…Disclosure: S. Amankwah: None. H.K. Driscoll: None. C. Muojieje: None. M. Sanati: None. Background: Approximately 50-65% of patients with autoimmune adrenal…”
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