Results 41 to 50 of about 567,772 (379)

Properties of paving units incorporating slag cement

open access: yesHBRC Journal, 2013
The aim of this study is to investigate the effect and possibility of using Portland slag cement in the production of interlocking paving units. Paving units consist of two layers. Four mixes were cast.
Hanan A. El Nouhy
doaj   +1 more source

SIGNIFICANCE OF MARBLE AND PORTLAND CEMENT

open access: yesInternational Journal of Engineering Technologies and Management Research, 2020
The aim of this current study is both to avoid the environmental. In this way, we will help to protect the environment by consuming the waste marble dust obtained as a by- product of marble sawing and shaping processes in the factories those operating in our region. Stone industry is an important factor in worldwide economy.
Arvind Dewangan, D. P. Gupta
openaire   +3 more sources

Technological foundations for solving problem of metallurgy and TPP waste utilization for development of "Green" technology for composite cements production [PDF]

open access: yesE3S Web of Conferences, 2023
The chemical-mineralogical compositions and physic-chemical properties of slag waste from the Angren TPP and Uzmetkombinat JSC were determined. A Conclusion was issued on their suitability for use as additives in cement and the possibility of using them ...
Iskandarova Mastura   +4 more
doaj   +1 more source

Synchrotron Microtomography and Neutron Radiography Characterization of the Microstruture and Water Absorption of Concrete from Pompeii [PDF]

open access: yesCement and Concrete Research 139 (2021) 106282, 2020
There is renewed interest in using advanced techniques to characterize ancient Roman concrete. In the present work, samples were drilled from the "Hospitium" in Pompeii and were analyzed by synchrotron microtomography (uCT) and neutron radiography to study how the microstructure, including the presence of induced cracks, affects their water adsorption.
arxiv   +1 more source

Portland Cement [PDF]

open access: yesScientific American, 1895
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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

Adaptability and Performance of Slag Cement As Partial Replacement to Ordinary Portland Cement in Concrete [PDF]

open access: yes, 2022
Portland cement is extensively used in the construction industry, making it one of the biggest construction expenditures in the Philippines and worldwide. It plays a vital role in concrete technology and is also the one used more often as compared to the
Manaloto, John Arvin R.
core   +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

Sand-Filler Structural Material with Low Content of Polyethylene Binder [PDF]

open access: yes, 2020
Currently, most of the waste plastics cannot be recycled, causing serious environmental concerns. In this research, we investigated a compaction formation technology to fabricate structural materials with thermoplastic binders. When the compaction pressure was 70~100 MPa, with only ~10 wt% polyethylene binder, the flexural strength was greater than ...
arxiv   +1 more source

The effects of seawater on the hydration, microstructure and strength development of Portland cement pastes incorporating colloidal silica

open access: yesApplied Nanoscience, 2019
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

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