Results 31 to 40 of about 579,115 (252)
The Effects of Mineral Wool Fly Ash on Cohesive Soil Strength Behaviour
This research work represents updated results of cohesive soil strength improvement with mineral wool fly ash. In the investigations, these materials were used: Portland cement CEM I 42.5 R, fly ash obtained from a mineral wool production process, sand ...
Mindaugas Zakarka+3 more
doaj +1 more source
CORRESPONDENCE ON PORTLAND CEMENT AND CONCRETE. [PDF]
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W D Cay+33 more
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The performance of Portland cement in concrete or mortar formation is very well influenced by chemical compositions among other factors. Many engineers usually have little information on the chemical compositions of cement in making decisions for the ...
Mark Bediako, Eric Opoku Amankwah
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THE TESTING OF PORTLAND CEMENT [PDF]
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openaire +2 more sources
This contribution investigates the effects of seawater and colloidal silica (NS) in the amounts of 1, 3 and 5 wt%, respectively, on the hydration, strength development and microstructural properties of Portland cement pastes.
P. Sikora+5 more
semanticscholar +1 more source
Modelling the effects of waste components on cement hydration [PDF]
Ordinary Portland Cement (OPC) is often used for the Solidification/Stabilization (S/S) of waste containing heavy metals and salts. These waste componenents will precipitate in the form of insoluble compounds onto unreacted cement clinker grains ...
Brouwers, H.J.H., Eijk, R.J. van
core +6 more sources
The effect of cement modification on the rheological properties of cement paste
Experimental tests have determined the effect of slag, opoka (silica-calcite sedimentary rock), silica fume (SiO2) suspension, dolomite dust and sodium silicate solution (NaSS) together with the polycarboxylatether based plasticizing admixture on the ...
Eugenijus Janavičius+4 more
doaj +1 more source
Electric recycling of Portland cement at scale
Cement production causes 7.5% of global anthropogenic CO2 emissions, arising from limestone decarbonation and fossil-fuel combustion1–3. Current decarbonation strategies include substituting Portland clinker with supplementary materials, but these mainly
C. Dunant+3 more
semanticscholar +1 more source
Complex Characterization and Behavior of Waste Fired Brick Powder-Portland Cement System
Two waste fired brick powders coming from brick factories located in Argentine and Czech Republic were examined as alternative mineral admixtures for the production of blended cements.
V. Rahhal+8 more
semanticscholar +1 more source