Results 51 to 60 of about 8,674 (232)

Dimensional stability and water transport behavior of concrete with high contents of wind‐turbine blade waste

open access: yesStructural Concrete, EarlyView.
Abstract Fiber addition is a common strategy to enhance concrete's durability, avoiding cracks and reducing penetration of harmful agents. In this research, a sustainable fiber‐like material obtained from mechanical recycling of dismantled wind‐turbine blades and made up of glass fiber‐reinforced polymer (GFRP) fibers and microfibers, balsa wood, and ...
Javier Manso‐Morato   +4 more
wiley   +1 more source

Influence of fly ash fineness on water requirement and shrinkage of blended cement mortars

open access: yesKKU Engineering Journal, 2015
In this paper, the influence of fly ash fineness on water requirement and shrinkage of blended cement mortar was studied. The results indicate that the water requirement and shrinkage characteristic of the blended cement mortar are dependent on fly ash ...
Vanissorn Vimonsatit   +3 more
doaj   +1 more source

ESTIMATION OF AUTOGENOUS SHRINKAGE OF CONCRETE

open access: yesDoboku Gakkai Ronbunshu, 1997
コンクリートの自己収縮ひずみの実測値に基づき, セメントおよび混和材の種類, 水結合材比, 有効材齢の関数とする自己収縮ひずみの予測式を提案した. 既往の実測データを用いて本提案式の精度を検証するとともに, RILEMの French chapter の提案する自己収縮ひずみ予測式との比較も行い, 本提案式の適用性について検討した.
Ei-ichi Tazawa, Shingo Miyazawa
openaire   +2 more sources

Impact of super absorbent polymers on early age behavior of ultra-high performance concrete walls [PDF]

open access: yes, 2019
Early age cracking, a common problem for Ultra-High Performance Concrete (UHPC), is caused by Autogenous Shrinkage (AS) and self-desiccation arising from the chemical shrinkage during the cement hydration reactions when the deformation is restrained ...
De Belie, Nele   +7 more
core  

Simultaneous Formation of Arsenic Nitride Chalcogenides As3NS3 and As3NSe3 and Arsenic–Chalcogen Zintl Anions by Ammonothermal Reactions

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Mn, As, and S or Se react in liquid NH3 to the Zintl ions (As4S6)2– and (As2Se6)2–. Simultaneously, the arsenic nitride chalcogenides As3NS3 and As3NSe3 are formed. Their isotypic structures contain planar trigonal NAs3 groups connected via chalcogen bridges to 1D‐strands forming channels that can host solvent molecules.
Frederik Hermann   +4 more
wiley   +1 more source

Assessment of shrinkage and bond behaviour of high performance cement-based composites as a repair mortar

open access: yesDevelopments in the Built Environment, 2023
There is a need to develop innovative repair materials which can overcome the challenges of cement-based repair mortars being relatively prone to shrinkage effects.
Hassan Baloch   +2 more
doaj   +1 more source

Mitigating autogenous shrinkage by means of superabsorbent polymers : effect on concrete properties [PDF]

open access: yes, 2017
(Ultra-)high performance concrete ((U)HPC) is very prone to autogenous shrinkage cracking. These cracks can create preferential pathways for the ingress of harmful substances which can facilitate the corrosion process of the steel reinforcement ...
De Meyst, Laurence   +5 more
core  

Untangling nutrient co‐regulation of ombrotrophic peatland development

open access: yesBoreas, EarlyView.
Multi‐method (FTIR, FT‐NIR and TGA) approaches characterizing the organic peat constituents at Holcroft Moss reveal a record of switches that reflect broadly hydroclimate variability governing the decomposition patterns. There are periods, however, where hydroclimate does not fully explain the variability observed and instead changes appear linked to ...
Richard C. Chiverrell   +6 more
wiley   +1 more source

Early age behaviour of concrete supercontainers for radioactive waste disposal [PDF]

open access: yes, 2009
A
Craeye, Bart   +3 more
core   +2 more sources

Use of Platelet‐Rich Fibrin (PRF) on Palatal Wound Healing: A Narrative Review With Clinical Recommendations

open access: yesJournal of Periodontal Research, EarlyView.
Based on the available evidence, the application of platelet‐rich fibrin (PRF) following free gingival graft (FGG) and subepithelial connective tissue graft (SCTG) harvesting appears to be a promising approach for enhancing wound healing, minimizing postoperative complications, and reducing analgesic consumption. ABSTRACT This clinical narrative review
Nima Farshidfar   +4 more
wiley   +1 more source

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