Results 31 to 40 of about 652,428 (241)
The Effects of Mineral Wool Fly Ash on Cohesive Soil Strength Behaviour
The Baltic Journal of Road and Bridge Engineering, 2021 This research work represents updated results of cohesive soil strength improvement with mineral wool fly ash. In the investigations, these materials were used: Portland cement CEM I 42.5 R, fly ash obtained from a mineral wool production process, sand ...
Mindaugas Zakarka +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Nano‐TiO2 and carboxylated cellulose nanofibers jointly regulate hydration‐product distribution in cementitious composites. Improved microstructural continuity and refined pore structure accompany enhanced strength and surface stability without a substantial increase in overall hydration.
Kailun Chen +8 more
wiley +1 more source
Quality of type I Portland cement from Ghana and UK [PDF]
, 2015 Type I Portland cement is general purpose cement found in many countries and it is manufactured by different companies. This study sought to compare the properties of Type I Portland cements from Ghana (less economically developed country) and United ...
Isaac Boateng +3 more
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Systematic Exploration of 3D Concrete Printing Parameters for Conformal Printing on Sloped Surfaces
Advanced Robotics Research, EarlyView.A conformal slicing algorithm is developed for robotic 3D concrete printing (3DCP) on sloped surfaces as a first step toward printing slab‐on‐grade foundations on uneven terrain. Systematic experiments quantify the effects of nozzle speed, extrusion rate, and toolpath direction on filament dimension and stability.
Paniz Farrokhsiar +2 more
wiley +1 more source
Comparison of the Properties of Portland Cement and Portland-Limestone Cement
Tanzania 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 +3 more sources
Advanced Science, EarlyView.This study presents a transferable modeling framework for carbon capture using aluminosilicates, integrating Universal Isotherm Modeling with experimental data. It reveals how ultramicropores, alumina content, and amine functionalization influence CO2 adsorption energetics.
Pooja Anil Kumar Nair +4 more
wiley +1 more source
Muhandisī-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
The Anatomical Record, EarlyView.Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro +10 more
wiley +1 more source
Released heat of hydrating particle fractions of Portland cement [PDF]
MATEC Web of ConferencesPortland cement had belonged to the most used binder world-wide. Besides long tradition of its production, its specific technical properties are highly different in comparison with previous decades.
Reiterman Pavel +2 more
doaj +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT Policy intervention can be a driver for industrial symbiosis (IS). However, given the wide variety of policy instruments available, policymakers should be guided in the policy design process to ensure that their intervention is effective and efficient. In this paper, we propose an agent‐based (AB) model intended to assess the effectiveness and
Melissa Mollica +2 more
wiley +1 more source