Portland cement versus MTA as a root-end filling material. A pilot study [PDF]
Acta 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
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Effects of Supplemetary Cementitious Materials on the Air Permeability of Concrete [PDF]
Journal of Materials and Engineering Structures, 2017 In order to support the use of cement combination concrete in construction, this paper investigated the resistance of Portland cement and some binary and ternary cement concretes containing fly ash, silica fume and metakaolin to air permeability at equal
Samuel Olufemi Folagbade
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Recent Advances in Magnesia Blended Cement Studies for Geotechnical Well Construction—A Review
Frontiers in Materials, 2021 The current paper presents a literature review on the studies of incorporation of magnesia (magnesium oxide) into Portland cement material from the geotechnical well construction perspective.
Weiqing Chen +3 more
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The impact of superplasticizers on the radiation changes in Portland cement stone and concretes [PDF]
Инженерно-строительный журнал, 2017 The authors have estimated the effect of advanced superplasticizers of types Muraplast, Reamin, Weiss SM, Polyplast SP-1 and Melflux on radiation changes in Portland cement stone and concretes of radiation protection, based on experimental data from ...
A.V. Denisov
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Process Optimization on Preparation of Composite Portland Cement with Low-grade Pyrite Cinder
Kuangchan zonghe liyong, 2023 This is a paper in the field of mineral materials. In order to seek for a new feasible way to utilize low-grade pyrite cinder under local conditions, to solve bottleneck problems of large reserves, and to relieve soil and water pollution, a research on ...
Yonghui Li +4 more
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Motivational factors affecting informal women entrepreneurs in North-West Province
The Southern African Journal of Entrepreneurship and Small Business Management, 2017 Background: Informal women entrepreneurs in the rural villages of North-West strive to progress from poverty to prosperity. There is a growing appreciation that the conditions that support women’s ability to start and grow ventures may be different from ...
Sanchen Henning, Kabira Akoob
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Case Studies in Construction Materials, 2022 Phosphogypsum (PG) is a residue from the fertilizer industry used by Portland cement companies as a source of calcium sulfate to control the setting time during the hydration (or hardening process).
Rayara Pinto Costa +5 more
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Effect of ultrasonication on carboxyl-functionalized multiwalled carbon nanotubes in fresh and hardened Portland cement pastes [PDF]
Revista IBRACON de Estruturas e Materiais, 2023 : The effects of chemical and physical methods on multiwalled carbon nanotube (MWCNT) dispersion in Portland cement pastes were investigated. Consistency, rheology, compressive strength, dynamic elastic modulus, flexural strength, water absorption, and ...
André Valmir Saugo Ribeiro +4 more
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Modeling the Influence of Ground-Granulated Blast Furnace Slag on Hydration of Cement
Advances in Civil Engineering, 2023 Portland cement is usually substituted with granulated blast furnace slag to make a slag-blended cement. A slag-incorporating cement has a more complicated hydration process than Portland cement due to the interactions between the slag reaction and the ...
Andualem Yadeta +2 more
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Multiple Optimization of Cold Reclaimed Asphalt Pavement Mixture [PDF]
E3S Web of Conferences, 2023 Many asphalt pavements fail structurally after having performed well for some years. In China, when low volume of traffic highway is recycled, the asphalt surface course and the base course stabilized by inorganic stabilizers are sometimes recycled and ...
Yin Kangliying
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