Results 131 to 140 of about 106,736 (345)

Use of superabsorbent polymers to mitigate autogenous shrinkage in ultra-high performance concrete [PDF]

open access: yes, 2019
Ultra-high performance concrete (UHPC) with low w/c-ratio is very prone to the formation of cracks due to autogenous shrinkage. These cracks can lead to a decreased durability of the concrete, resulting in higher maintenance and/or repair costs in the ...
De Belie, Nele   +5 more
core  

Uncovering Archaeological Treasures at Saruq al‐Hadid, UAE: Insights From Ground Penetrating Radar and Magnetic Data

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali   +9 more
wiley   +1 more source

Freeze-Thaw Resistance of Cement Screed with Various Supplementary Cementitious Materials

open access: yesReviews on Advanced Materials Science, 2019
This paper describes a study of the effect of partial replacement of ordinary Portland cement (OPC) by various mineral additives in the screed mixtures. Ceramic powder, blast furnace slag and fly ash were gradually employed in increments of 12.5 wt.% up ...
Reiterman Pavel   +3 more
doaj   +1 more source

The Impact of Carbon Pricing on Corporate Sustainability: Evidence From the European Union

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The European Union (EU) has played a leading role in the fight against climate change. One mechanism used to meet the targets for global greenhouse gas (GHG) emission reductions is carbon pricing. A prominent example is the EU Emissions Trading System (EU‐ETS).
C. José García   +2 more
wiley   +1 more source

Enhancing performance of recycled aggregate concrete with supplementary cementitious materials

open access: yesCleaner Materials
The substitution of natural coarse aggregates (NCA) by recycled coarse aggregates (RCA) is part of the environmental approach aimed at reducing waste and preserve natural resources.
Abba Fatiha   +3 more
doaj   +1 more source

Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase II [PDF]

open access: yes, 2018
In Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified ...
Shi, Xianming, Xu, Gang
core  

Preservation therapy for vertically fractured teeth with periodontal tissue regeneration using FGF‐2

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background Vertically fractured teeth often have a poor prognosis, and extraction is considered the most predictable treatment. Conventional management has consisted of preservation therapy involving extraction, bonding, root restoration, and replantation of fractured teeth.
Masaichiro Iwasaki   +4 more
wiley   +1 more source

Impaired healing following implant placement surgery: A case report of a modern‐day manifestation of scurvy

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background Delayed wound healing following implant placement surgery is an uncommon complication, usually attributed to systemic (smoking and alcohol), local (severely inflamed tissues), or technical (poor suturing) factors. However, delayed wound healing after implant placement caused by severe hypovitaminosis C has not been previously ...
Gregor‐Georg Zafiropoulos   +2 more
wiley   +1 more source

Fiber reinforced mortars based on free Portland-CSA binders under high stress rate

open access: yesEPJ Web of Conferences, 2018
In this paper, dynamic behaviour of fiber reinforced mortars manufactured with innovative binders based on calcium sulphoaluminate cement (CSA), supplementary cementitious materials (SCMs), gypsum (G) and hydrated lime (CH) was investigated. Fly ash (FA)
Coppola Luigi   +4 more
doaj   +1 more source

Fluorescence Properties and Mg2+ Selectivity of Aryl‐Alkynyl Derivatives of the o‐Aminophenoltriacetate (APTRA) Ligand

open access: yesChemistry – A European Journal, EarlyView.
It is a challenge to improve the selectivity of high‐denticity ligands for Mg2+ over Ca2+. We show that in aryl‐alkynyl derivatives of APTRA, electron‐withdrawing substituents lower the binding affinity for Ca2+ more than Mg2+, making the ligand more selective for Mg2+.
Laura L. Duncan   +2 more
wiley   +1 more source

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