Results 21 to 30 of about 173,817 (235)

Alkali-Activated Cement-Based Binders (AACBs) as durable and cost-competitive low-CO2 binder materials: some shortcomings that need to be adressed [PDF]

open access: yes, 2017
Available online 14 October 2016.The production of 1 t of ordinary Portland cement generates 0.55 t of chemical CO2 and requires an additional 0.39 t of CO2 in fuel emissions for baking and grinding, accounting for a total of 0.94 t of CO2.
Abdollahnejad   +59 more
core   +1 more source

Characteristic of compressive and tensile strength using the organic cement compare with portland cement

open access: yesCase Studies in Construction Materials, 2018
The waste problem is a problem faced throughout the world. This research aims to save the environment with on the utilization of recycling waste materials that do not contribute much in people's lives over the years.
Muhammad Syarif   +3 more
doaj   +1 more source

Assessment of properties of ultra-high performance cementitious composites with glass powder waste [PDF]

open access: yesRevista IBRACON de Estruturas e Materiais, 2022
Novel developments on concrete technology such as high and ultra-high-performance concrete (HPC and UHPC) are notorious by its high consumption of Portland cement.
Silvete Mari Soares   +4 more
doaj   +1 more source

THE ANALYSIS OF PORTLAND CEMENT. [PDF]

open access: yesJournal of the American Chemical Society, 1904
n ...
openaire   +2 more sources

The effect of cement modification on the rheological properties of cement paste

open access: yesJournal of Civil Engineering and Management, 2014
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

Physical evaluation of a new pulp capping material developed from portland cement [PDF]

open access: yes, 2016
Background: This study examined the effects of addition of 10% and 25% by weight calcium hydroxide on the physicochemical properties of Portland cement associated with 20% bismuth oxide in order to develop a new pulp capping material.
Abu-Seida, Ashraf   +3 more
core   +2 more sources

Analysis of Chemical Composition of Portland Cement in Ghana: A Key to Understand the Behavior of Cement

open access: yesAdvances in Materials Science and Engineering, 2015
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
doaj   +1 more source

Portland cement versus MTA as a root-end filling material. A pilot study [PDF]

open access: yesActa Cirúrgica Brasileira, 2015
PURPOSE: To assess periradicular lesions clinically and by computed tomography (CT) after endodontic surgery using either Portland cement or mineral trioxide aggregate (MTA) as a root-end filling material.
Sérgio Ribeiro da Silva   +4 more
doaj   +2 more sources

On Portland Cement [PDF]

open access: yesScientific American, 1880
n ...
openaire   +1 more source

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