Search Results - "Kaufmann, Josef"

Experimental studies and thermodynamic modeling of the carbonation of Portland cement, metakaolin and limestone mortars by Shi, Zhenguo, Lothenbach, Barbara, Geiker, Mette Rica, Kaufmann, Josef, Leemann, Andreas, Ferreiro, Sergio, Skibsted, Jørgen

“…The carbonation of Portland cement, metakaolin and limestone mortars has been investigated after hydration for 91days and exposure to 1% (v/v) CO2 at 20°C/57%…”
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On the use of peak-force tapping atomic force microscopy for quantification of the local elastic modulus in hardened cement paste by Trtik, Pavel, Kaufmann, Josef, Volz, Udo

“…A surface of epoxy-impregnated hardened cement paste was investigated using a novel atomic force microscopy (AFM) imaging mode that allows for the quantitative…”
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Analysis of cement-bonded materials by multi-cycle mercury intrusion and nitrogen sorption by Kaufmann, Josef, Loser, Roman, Leemann, Andreas

“…The pore systems of cement-based materials are studied by N 2 sorption and mercury intrusion porosimetry. A new interpretation of the different data sets leads…”
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Observation of elastic modulus inhomogeneities in thermosetting epoxies using AFM – Discerning facts and artifacts by Haba, Dietmar, Kaufmann, Josef, Brunner, Andreas J., Resch, Katharina, Teichert, Christian

“…Observations of a nanometer-scale nodular morphology on differently prepared surfaces of thermosets have frequently been interpreted as a sign for an…”
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Multi-band D-TRILEX approach to materials with strong electronic correlations by Vandelli, Matteo, Kaufmann, Josef, El-Nabulsi, Mohammed, Harkov, Viktor, Lichtenstein, Alexander, Stepanov, Evgeny

“…We present the multi-band dual triply irreducible local expansion (D-TRILEX) approach to interacting electronic systems and discuss its numerical…”
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Experimental identification of ice formation in small concrete pores by Kaufmann, Josef P

“…Freezing of water or salt solution in the concrete pores may be the cause for severe damage and significant reduction of service life. Although being one of…”
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Evaluation of the combination of desert sand and calcium sulfoaluminate cement for the production of concrete by Kaufmann, Josef

“…•Sand fraction of concrete and mortar replaced by desert sand.•Calcium sulfoaluminate cement (CSA) used as binder instead of Portland cement.•High water demand…”
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Review of the Water–Land–Food–Carbon Nexus Focused on Regional Low-Carbon and High-Quality Agricultural Development by Deng, Caiyun, Xu, Tianhe, Zhang, Li, Yang, Siqi, Yin, Huiying, Guo, Jian, Si, Lulu, Kang, Ran, Kaufmann, Hermann Josef

“…To overcome the multiple challenges of water scarcity, agricultural land conversion, food security, and carbon emissions, an optimal collaborative management…”
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ana_cont: Python package for analytic continuation by Kaufmann, Josef, Held, Karsten

“…We present the Python package ana_cont for the analytic continuation of fermionic and bosonic many-body Green's functions by means of either the Padé…”
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High performance composites in spun-cast elements by Kaufmann, Josef, Hesselbarth, Daniela

“…Spin-casting is an effective fabrication method to produce concrete poles, masts or pipes. Through the centrifugal process the concrete is compacted and the…”
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Effects of biochar on dry matter production and competitive ability of Rumex obtusifolius L by Andreas Bohner, Bernhard Wimmer, Wilhelm Graiss, Matthias Kandolf, Josef Kaufmann, Martina Schink, Gerhard Soja

“…Rumex obtusifolius L. (broad-leaved dock) is one of the most troublesome weeds in intensively managed grassland. This study investigated the potential of…”
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Pore space analysis of cement-based materials by combined Nitrogen sorption – Wood’s metal impregnation and multi-cycle mercury intrusion by Kaufmann, Josef

“…The analysis of pore space is crucial for a profound understanding of transport and mechanical properties of porous materials. Cement-based materials have a…”
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Influence of magnesium-to-phosphate ratio and water-to-cement ratio on hydration and properties of magnesium potassium phosphate cements by Xu, Biwan, Winnefeld, Frank, Kaufmann, Josef, Lothenbach, Barbara

“…Magnesium-to-phosphate (Mg/PO4) and water-to-cement (w/c) ratios are important factors controlling hydration and properties of magnesium potassium phosphate…”
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Relation between carbonation resistance, mix design and exposure of mortar and concrete by Leemann, Andreas, Nygaard, Peter, Kaufmann, Josef, Loser, Roman

“…When cement with mineral additions is employed, the carbonation resistance of mortar and concrete may be decreased. In this study, mortars containing mineral…”
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Topotactic Hydrogen in Nickelate Superconductors and Akin Infinite-Layer Oxides ABO_{2} by Si, Liang, Xiao, Wen, Kaufmann, Josef, Tomczak, Jan M, Lu, Yi, Zhong, Zhicheng, Held, Karsten

“…Superconducting nickelates appear to be difficult to synthesize. Since the chemical reduction of ABO_{3} [rare earth (A), transition metal (B)] with CaH_{2}…”
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Evaluation of the consistency of fiber reinforced cementitious composites by KAUFMANN, Josef P, WINNEFELD, Frank, HESSELBARTH, Daniela, TRINDLER, Walter

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Interaction of cement model systems with superplasticizers investigated by atomic force microscopy, zeta potential, and adsorption measurements by Ferrari, Lucia, Kaufmann, Josef, Winnefeld, Frank, Plank, Johann

“…In multiphase suspensions with positively and negatively charged particles, the adsorption of superplasticizers is rather different depending on particles…”
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Sulfate resistance of calcined clay – Limestone – Portland cements by Shi, Zhenguo, Ferreiro, Sergio, Lothenbach, Barbara, Geiker, Mette Rica, Kunther, Wolfgang, Kaufmann, Josef, Herfort, Duncan, Skibsted, Jørgen

“…Calcined clays emerge as a promising source of supplementary cementitious material, which can provide a significant lowering of the Portland clinker content in…”
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Influence of shotcrete accelerators on the hydration of cement pastes and their impact on sulfate resistance by Winnefeld, Frank, Kaufmann, Josef, Loser, Roman, Leemann, Andreas

“…•Very early formation of ettringite in the presence of an alkali-free accelerator.•Destabilization of ettringite in the presence of an alkaline accelerator.•At…”
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Evaluation of the consistency of fiber reinforced cementitious composites by Kaufmann, Josef P, Winnefeld, Frank, Hesselbarth, Daniela, Trindler, Walter

“…The rheological properties of fresh concrete, mortar or cement paste are among the most important parameters when cementitious building materials are placed…”
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