Results 51 to 60 of about 121,452 (195)

Early Age Autogenous Shrinkage of Fibre Reinforced Concrete

Nordic Concrete Research, 2018
Concrete is often sensitive to cracking during the hardening process, and these cracks could be the result of early-age shrinkage. One method to reduce shrinkage is to add different types of fibres to concrete.
Ullah Farid, Al-Neshawy Fahim, Punkki Jouni   +2 more
doaj   +1 more source

The Tunneled Coronally Advanced Flap (TCAF) for Root Coverage Procedures: Rationale, Indications, and a Novel Papilla‐Based Decision Tree

Journal of Periodontal Research, EarlyView.
This technical report describes the clinical rationale for TCAF and introduces a papilla‐based decision tree to assist clinicians in selecting the most appropriate strategy (open vs. tunnel) for each individual papilla.
Lorenzo Tavelli, Shayan Barootchi
wiley   +1 more source

Effect of modified phosphogypsum on the dimensional stability of supersulfated cement-based materials

Case Studies in Construction Materials
Compared to ordinary Portland cement (OPC), supersulfated cement (SSC) is an environmentally friendly cement. Phosphogypsum (PG) is commonly utilized as a sulfate activator in SSC.
Qingqing Jin, Lu Wang, Zhisheng Ren, Xinyu Li, Shuhua Liu   +4 more
doaj   +1 more source

Humidity Sensitivity of Hydration of Expansive Agent and Its Expansive Efficiency in Ultra-High Performance Concrete

Crystals, 2022
Ultra-high performance concrete (UHPC) has a potential cracking risk due to its large autogenous shrinkage. The use of an expansive agent is an effective approach to reduce autogenous shrinkage of UHPC.
Yujiang Wang, Qian Tian, Hua Li, Yang Wang   +3 more
doaj   +1 more source

Three‐Dimensional Scaffolds for Bone, Soft Tissue, and Periodontal Regeneration

Journal of Periodontal Research, EarlyView.
Three‐dimensional scaffolds offer tissue‐specific control of architecture, mechanics, porosity, and functionalisation to improve bone, soft tissue, and periodontal regeneration. ABSTRACT The oral cavity presents three distinct regenerative challenges: restoration of alveolar bone volume and stability, augmentation of soft mucogingival tissues, and ...
Reuben Staples, Jamil Alayan, Raghavendra Vamsi Anegundi, Marisca Pereira, Saraswat Basu, Sašo Ivanovski   +5 more
wiley   +1 more source

Thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) hydrogel particles improve workability loss and autogenous shrinkage in cement paste

Cement, 2022
In this work, we show that non-superabsorbent, thermo-responsive poly(N-isopropyl acrylamide) (PNIPAM) hydrogel particles (< 250 μm) can reduce autogenous shrinkage in cement paste and improve early-age stiffening that can be caused by traditional ...
Anastasia N. Aday, Mohammad G. Matar, Jorge Osio-Norgaard, Wil V. Srubar, III   +3 more
doaj   +1 more source

Three‐dimensional digital quantitative analysis of periodontal and peri‐implant phenotype—A narrative review

Periodontology 2000, EarlyView.
Abstract 3D digital evaluation of the periodontal and peri‐implant tissue, including CBCT, intraoral scanning, optical surface scanning, and ultrasonography, is being used in the clinical arena with increasing frequency. Thus, to validate the utilization of 3D digital analysis for this purpose, a critical evaluation of the reliability of digital ...
Yi Te Lin, Chenshuang Li, Jonathan Korostoff, Joseph P. Fiorellini, Jie Yang, Yu‐Cheng Chang   +5 more
wiley   +1 more source

Long‐term stability of transcrestal sinus augmentation

Periodontology 2000, EarlyView.
Abstract Transcrestal sinus augmentation has emerged as a minimally invasive alternative to lateral window techniques for vertical bone augmentation in the edentulous maxilla. Since its early introduction and modification over the last several decades, this technique has demonstrated predictable outcomes for implant placement in regions with limited ...
Sandra H. Stuhr, Muhammad H. A. Saleh, Tiziano Testori, Hom‐Lay Wang, Ann M. Decker   +4 more
wiley   +1 more source

Cracking potential of alkali-activated concrete ïnduced by autogenous shrinkage

, 2021
Alkali activated concrete (AAC) has not received broader industry acceptance, one reason of which lies in the uncertainties in the durability against shrinkage and potential cracking.
Kostiuchenko, A. (author), Zhang, Shizhe, Ye, Guang, Ye, G., Kostiuchenko, A., Valente, I.B., Li, Z., Liang, X. (author), Li, Z. (author), Liang, Xuhui, Li, Zhenming, Ye, G. (author), Kostiuchenko, Albina, Zhang, Shizhe (author), Liang, X.   +14 more
core   +2 more sources

Effect of fly ash and metakaolin on early-age autogenous shrinkage and mechanical properties of ultra-high-performance concrete

Frontiers in Materials
To address the severe autogenous shrinkage and high cracking risk caused by the extremely low water-to-binder ratio in traditional ultra-high-performance concrete (UHPC), this study incorporates fly ash (FA, 10%, 20%, and 30%) and metakaolin (MK, 5%, 10%,
Yutai Liu, Ruiqing Hao, Lin Liao, Jinchang Zhao, Zhiling Liao, Zebiao Hou, Mingji Ding   +6 more
doaj   +1 more source