Results 41 to 50 of about 177,486 (277)

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

A Review and Comparative Study of Existing Shrinkage Prediction Models for Portland and Non-Portland Cementitious Materials [PDF]

open access: yes, 2016
This paper reviews shrinkage prediction models for cementitious materials and presents analysis of selected published data utilizing the aforementioned models. The main objective of this review is to revisit and reexamine the primary shrinkage mechanisms,
Radlińska, A., Ye, H.
core   +3 more sources

Portland Cement: What is it? [PDF]

open access: yesScientific American, 1911
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openaire   +2 more sources

Comparison of the Properties of Portland Cement and Portland-Limestone Cement

open access: yesTanzania Journal of Engineering and Technology, 2010
A study was made in a cement factory in Dar es Salaam, Tanzania, where OrdinaryPortland Cement (CEM I 42.5N) and Portland-limestone cement (PLC) which has thebrand name Twiga Cement Extra (CEM II/A-L/32.5R) are produced and conforming to theTanzania Standard TZS 727 (Part1): 2002, which is equivalent to EN 197 published by thecommittee for European ...
openaire   +4 more sources

Multi-scale simulation of capillary pores and gel pores in Portland cement paste [PDF]

open access: yes, 2015
The microstructures of Portland cement paste (water to cement ratio is 0.4, curing time is from 1 day to 28 days) are simulated based on the numerical cement hydration model, HUMOSTRUC3D (van Breugel, 1991; Koenders, 1997; Ye, 2003).
Gao, Peng   +3 more
core  

Multi-criteria decision analysis to assess the environmental and economic performance of using recycled gypsum cement and recycled aggregate to produce concrete: the case of Catalonia (Spain) [PDF]

open access: yes, 2018
The production of virgin raw materials used in construction and the generation of construction and demolition waste (CDW) are key environmental issues in the construction industry.
Calderón Valdiviezo, Lucrecia Janneth   +3 more
core   +2 more sources

Transformation of a Silicate Material for Carbon Negative Magnesia‐Based Cement via Electrochemistry

open access: yesAdvanced Science, EarlyView.
The transformation of a magnesium trisilicate material via water electrolysis into precursor phases necessary for magnesium‐based M‐S‐H cement is explored. The dissolution of the material mediated electrochemically is monitored, and the analysis of the resulting phases indicate their suitability as effective precursors for M‐S‐H cement.
Anthony R. Ramuglia   +11 more
wiley   +1 more source

Solidification/Stabilization of Lead Contaminated Soil Using Magnesia Phosphate cement and Ordinary Portland cement

open access: yesMuhandisī-i Bihdāsht-i Muḥīṭ, 2021
Background and objectives: Solidification/stabilization is an effective technique for reducing the leachability of contaminants in soils. Magnesia phosphate cement and ordinary Portland cement can be used to remediate soils contaminated.
Mohamad Javad Zoqi, Mohamad Reza Doosti
doaj  

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