Results 21 to 30 of about 652,428 (241)

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

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

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

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

Librarians' Electronic Resource Reviews Network (LERRN): a free citation database for resource reviews

open access: yesJournal of the Medical Library Association
Electronic resource reviews written by librarians are a valuable way to identify potential content platforms and stay current on new resources. Resource-focused articles can also assist with learning about useful features, training others, and marketing ...
Louisa Verma
doaj   +1 more source

Properties of concrete incorporating locally produced Portland limestone cement

open access: yesAin Shams Engineering Journal, 2018
Blended cements are increasingly being used in concrete to reduce the amount of clinker in the cement, thus achieving both economic and environmental gains. The use of limestone as a component of Portland cement is now common practice worldwide. Reducing
Fatma Shaker   +2 more
doaj   +1 more source

Optimization of the Composition of Cement Pastes Using Combined Additives of Alumoferrites and Gypsum in Order to Increase the Durability of Concrete

open access: yesBuildings, 2023
The reliability of concrete structures is closely related to the durability of the concrete materials stable under external environmental conditions.
Svetlana V. Samchenko   +2 more
doaj   +1 more source

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